Multilayer films that have at least three layers and methods for producing them

Abstract

The embodiments described herein relate to multilayer films. The multilayer film embodiments may include a first layer comprising a polyethylene composition having a density of 0.924 g / cm³ to 0.936 g / cm³ and a melt index (I²) of 0.25 g / 10 mins to 2.0 g / 10 mins, a second layer comprising a first polyolefin, and a third layer comprising a second polyolefin. The first layer may be positioned between the second and third layers. The first and second polyolefins may be the same or different.

Description

MULTILAYER FILMS HAVING AT LEAST THREE LAYERS AND METHODS FOR PRODUCING THEM FIELD OF THE INVENTION The embodiments described herein generally refer to multilayer films and specifically refer to multilayer films that include polyethylene. BACKGROUND OF THE INVENTION Improved sustainability is a goal of manufacturers of multilayer films that include polyethylene. Therefore, it is beneficial for monolayer and multilayer polymer films, which may include blown or cast films, to demonstrate toughness while allowing a reduction in material costs, for example, by reducing thickness (i.e. use of thinner film thicknesses) or the reduction or elimination of relatively expensive materials, such as polyamides. BRIEF DESCRIPTION OF THE INVENTION In conventional multilayer films, the inclusion of a polyamide core layer in multilayer film structures can present a desirable balance of film properties between film and dart modulus. However, the incorporation of the polyamide core layer may increase the complexity of the process, increase the complexity of the film structure, produce Ref. 331321 non-recyclable multilayer films and increase material costs. However, generally, without incorporating a polyamide core layer, attempts to improve the modulus by modifying the film can result in a loss of dart, while attempts to improve the dart usually result in module loss. Furthermore, obtaining polymer films that have sufficient toughness while allowing material costs to be reduced by reducing thickness is often a challenge. Therefore, multilayer films are needed that exhibit physical properties, such as dart / bag drop, puncture, tear, and creep resistance, that meet customer and industry requirements. In some embodiments, these multilayer films can still maintain physical properties that meet customer and industry requirements even at reduced thicknesses or even without a polyamide core layer. Embodiments of the present disclosure meet those needs, in various embodiments, by providing multilayer films that include at least three layers that provide a balance of stiffness and abuse resistance properties (e.g., dart, puncture energy, tear). These multilayer films may include a polyethylene composition in a core layer, which exhibits an improved balance of toughness and creep resistance. Furthermore, when the overall thickness of the multilayer, which includes a polyethylene composition in a core layer, is reduced, the multilayer film can still exhibit an improved balance of toughness and creep resistance compared to conventional multilayer films. According to at least one embodiment, a multilayer film is provided. Embodiments of the multilayer film may include a first layer comprising a polyethylene composition, a second layer comprising a first polyolefin, and a third layer comprising a second polyolefin. The first layer can be placed between the second layer and the third layer. The first polyolefin and the second polyolefin have the same or different compositions. The polyethylene composition may include (a) a first polyethylene fraction having a single peak in a temperature range of 45°C to 87°C in an elution profile through the comonomer composition enhanced distribution analysis method. (iCCD), wherein an area of ​​the first polyethylene fraction is an area in the elution profile below the single peak of the first polyethylene fraction between 45°C and 87°C; and (b) a second polyethylene fraction having a single peak in a temperature range of 95°C to 120°C in the elution profile through the iCCD analysis method and wherein an area of ​​the second polyethylene fraction is an area in the elution profile below the single peak of the second polyethylene fraction between 95°C and 120°C; wherein the polyethylene composition has a density of 0.924 g / cm3 to 0.936 g / cm3 and a melting index (I2) of 0.25 g / 10 minutes to 2.0 g / 10 minutes, where the area of ​​the first polyethylene fraction comprises minus 40% of the total area of ​​the elution profile, where a ratio of the area of ​​the first polyethylene fraction to the area of ​​the second polyethylene fraction is 0.75 to 2.5, and where the width of the single peak of the second polyethylene fraction at a peak height of 50 percent is less than 5.0°C. According to at least one other embodiment, a multilayer film is provided. Embodiments of the multilayer film may include a first layer, a second layer comprising a first linear low-density polyethylene having a density of 0.910 to 0.936 g / cm3, and a third layer comprising a second linear low-density polyethylene having a density from 0.910 to 0.936 g / cm3. The first linear low-density polyethylene and the second linear low-density polyethylene have the same or different compositions. The first layer can be placed between the second layer and the third layer. The first layer may include 10% by weight to 80% by weight of the total weight of the multilayer film. The first layer may include a polyethylene composition. The polyethylene composition may include (a) a first polyethylene fraction having a single peak in a temperature range of 45°C to 87°C in an elution profile through the comonomer composition enhanced distribution analysis method. (iCCD), wherein an area of ​​the first polyethylene fraction is an area in the elution profile below the single peak of the first polyethylene fraction between 45°C and 87°C; and (b) a second polyethylene fraction having a single peak in a temperature range of 95°C to 120°C in the elution profile through the iCCD analysis method and wherein an area of ​​the second polyethylene fraction is an area in the elution profile below the single peak of the second polyethylene fraction between 95°C and 120°C; wherein the polyethylene composition has a density of 0.924 g / cm3 to 0.936 g / cm3 and a melting index (I2) of 0.25 g / 10 minutes to 2.0 g / 10 minutes, where the area of ​​the first polyethylene fraction comprises the minus 40% of the total area of ​​the elution profile, where a ratio of the area of ​​the first polyethylene fraction to the area of ​​the second polyethylene fraction is 0.75 to 2.5, and where the width of the single peak of the second polyethylene fraction at a peak height of 50 percent is less than 5.0°C. According to at least one other embodiment, a multilayer film is provided. Embodiments of the multilayer film may include a first layer, a second layer, and a third layer. The first layer can be placed between the second layer and the third layer. The first layer may include a high-density polyethylene composition having a density of 0.940 g / cm3 to 0.970 g / cm3 when measured in accordance with ASTM 742 and a polyethylene composition. The second layer may include at least 50% by weight of a first linear low-density polyethylene based on the total weight of the second layer, wherein the first linear low-density polyethylene has a density of 0.910 g / cm3 to 0.936 g / cm3 . The third layer may include at least 50% by weight of a second linear low-density polyethylene based on the total weight of the second layer, wherein the second linear low-density polyethylene has a density of 0.910 g / cm3 to 0.936 g / cm3 · The first linear low-density polyethylene and the second linear low-density polyethylene may have the same or different compositions. The polyethylene composition may include (a) a first polyethylene fraction having a single peak in a temperature range of 45°C to 87°C in an elution profile through the comonomer composition enhanced distribution analysis method. (iCCD), wherein an area of ​​the first polyethylene fraction is an area in the elution profile below the single peak of the first polyethylene fraction between 45°C and 87°C; and (b) a second polyethylene fraction having a single peak in a temperature range of 95°C to 120°C in the elution profile through the iCCD analysis method and wherein an area of ​​the second polyethylene fraction is an area in the elution profile below the single peak of the second polyethylene fraction between 95°C and 120°C; wherein the polyethylene composition has a density of 0.924 g / cm3 to 0.936 g / cm3 and a melting index (I2) of 0.25 g / 10 minutes to 2.0 g / 10 minutes, where the area of ​​the first polyethylene fraction comprises minus 40% of the total area of ​​the elution profile, where a ratio of the area of ​​the first polyethylene fraction to the area of ​​the second polyethylene fraction is 0.75 to 2.5, and where the width of the single peak of the second polyethylene fraction at a peak height of 50 percent is less than 5.0°C. According to at least one other embodiment, a multilayer film is provided. Embodiments of the multilayer film may include a first layer, a second layer, and a third layer. The first layer can be placed between the second layer and the third layer. The first layer may include a first polyethylene having a density of 0.940 g / cm3 to 0.970 g / cm3 and a first polyethylene composition having a density of 0.924 g / cm3 to 0.936 g / cm3. The second layer may include a second polyethylene having a density of 0.940 g / cm3 to 0.970 g / cm3, a first low-density polyethylene composition having a density of 0.916 g / cm3 to 0.935 g / cm3, and a second polyethylene composition which has a density of 0.924 g / cm3 to 0.936 g / cm3. The third layer may include a second low-density polyethylene composition having a density of 0.916 g / cm3 to 0.935 g / cm3 and a third polyethylene composition having a density of 0.924 g / cm3 to 0.936 g / cm3. The first polyethylene and the second polyethylene may have the same or different compositions. The first low-density polyethylene and the second low-density polyethylene may have the same or different compositions. The first polyethylene composition, the second polyethylene composition and the third polyethylene composition may have the same or different compositions, and each may include (a) a first polyethylene fraction that has a single peak in a temperature range of 45° C at 87°C in an elution profile through the enhanced comonomer composition distribution (iCCD) analysis method, where an area of ​​the first polyethylene fraction is an area in the elution profile below the single peak of the first polyethylene fraction between 45°C and 87°C; and (b) a second polyethylene fraction having a single peak in a temperature range of 95°C to 120°C in the elution profile through the iCCD analysis method and wherein an area of ​​the second polyethylene fraction It is an area in ΜΛ / elution profile below the single peak of the second polyethylene fraction between 95°C and 120°C; wherein the polyethylene composition has a density of 0.924 g / cm3 to 0.936 g / cm3 and a melting index (I2) of 0.25 g / 10 minutes to 2.0 g / 10 minutes, where the area of ​​the first polyethylene fraction comprises minus 40% of the total area of ​​the elution profile, where a ratio of the area of ​​the first polyethylene fraction to the area of ​​the second polyethylene fraction is 0.75 to 2.5, and where the width of the single peak of the second polyethylene fraction at a peak height of 50 percent is less than 5.0°C. These and other modalities are described in more detail in the following Detailed Description in conjunction with the attached figures. BRIEF DESCRIPTION OF THE FIGURES The following detailed description of specific embodiments of the present description can be better understood when read in conjunction with the following figures, wherein a similar structure is indicated with similar reference numerals and wherein: Figure 1 schematically represents an iCCD elution profile, according to one or more embodiments described herein; Figure 2 graphically represents the iCCD elution profile of a polyethylene composition of Example 1, according to one or more embodiments described herein; Figure 3 schematically represents a reactor system useful for producing polyethylene, according to one or more embodiments described herein; and Figure 4 schematically represents another reactor system useful for producing polyethylene, according to one or more embodiments described herein. DETAILED DESCRIPTION OF THE INVENTION Specific modalities of this application will be described below. These modalities are provided to make this description exhaustive and complete and to fully convey the scope of the claimed subject matter to those in the mid-level trade. Unless otherwise indicated, implied from the context, or customary in the art, all parts and percentage values ​​are by weight, all temperatures are in °C, and all test methods are current at the date of submission of this description. The term polymer refers to a polymeric compound prepared by the polymerization of monomers, whether of the same type or a different type. The generic term polymer thus encompasses the term homopolymer, which generally refers to a polymer prepared from only one type of monomer, as well as copolymer, which refers to a polymer prepared from two or more different monomers. The term interpolymer, as used herein, refers to a polymer prepared by the polymerization of at least two different types of monomers. Thus, the generic term interpolymer includes a copolymer or polymer prepared from more than two different types of monomers, such as terpolymers. Polyethylene or ethylene-based polymer refers to polymers comprising more than 50 mol% units derived from an ethylene monomer. This includes ethylene-based copolymers or homopolymers (i.e., units derived from two or more comonomers). Common forms of ethylene-based polymers known in the art include, but are not limited to, low-density polyethylene (LDPE); linear low density polyethylene (LLDPE); ultra-low density polyethylene (ULDPE); very low density polyethylene (VLDPE); single-site catalyzed linear low-density polyethylene, including linear and substantially linear low-density resins (m-LLDPE); medium density polyethylene (MDPE); and high-density polyethylene (HDPE). As used herein, the term "composition" refers to a mixture of materials comprising the composition, as well as reaction products and decomposition products formed from the materials in the composition. As used herein, polypropylene or propylene-based polymer refers to a polymer that comprises, in polymerized form, more than 50 mol% units that have been derived from a propylene monomer. This includes propylene homopolymer, polypropylene random copolymer, polypropylene impact copolymer, propylene / a-olefin copolymer, and propylene / a-olefin copolymer. The term LDPE may also be referred to as high-pressure ethylene polymer or highly branched polyethylene and is defined as the polymer that is partially or completely homopolymerized or copolymerized in autoclave or tubular reactors at pressures greater than 14,500 psi (100 MPa) with the use of initiators. of free radicals, such as peroxides (see, for example, US Patent No. 4,599,392, which is incorporated herein by reference). Typically, LDPE resins have a density in the range of 0.916 g / cm3 to 0.940 g / cm3. The term LLDPE includes resin manufactured through the use of Ziegler-Natta catalyst systems as well as resin manufactured through the use of single-site catalysts, including, but not limited to, bismetallocene catalysts (sometimes referred to as m-LLDPE), phosphinimine , and restricted geometry catalysts, and resins manufactured using postmetallocene molecular catalysts including, but not limited to, bis(biphenylphenoxy) catalysts (also called polyvalent aryloxyether catalysts). LLDPE includes linear, substantially linear or heterogeneous ethylene-based copolymers or homopolymers. LLDPEs contain fewer long chain branches than LDPEs and include the substantially linear ethylene polymers further defined in U.S. Pat. 5,272,236, United States Patent No. 5,278,272, United States Patent No. 5,582,923 and United States Patent No. 5,733,155; homogeneously branched linear ethylene polymer compositions, such as those of United States Patent No. 3,645, 992; heterogeneously branched ethylene polymers, such as those prepared according to the process described in United States Patent No. 4,076,698; and mixtures thereof (such as those described in US Patent No. 3,914,342 and US Patent No. 5,854,045). LLDPE resins can be manufactured by gas phase, solution phase or suspension polymerization, or any combination thereof, using any type of reactor or reactor configuration known in the art. The term MDPE refers to polyethylenes having densities of 0.924 g / cm3 to 0.942 g / cm3. MDPE is typically made with chromium or Ziegler-Natta catalysts or single-site catalysts including, but not limited to, mono- or bis-substituted cyclopentadienyl (usually called metallocene) catalysts, constrained geometry catalysts, , phosphinimine catalysts and polyvalent aryloxyether catalysts (usually called bisphenyl phenoxy). The term HDPE refers to polyethylenes having densities greater than about 0.935 g / cm3 and up to about 0.980 g / cm3, which are generally prepared with Ziegler-Natta catalysts, chromium catalysts or single-site catalysts that include, among others, mono- or bis-substituted cyclopentadienyl catalysts (generally referred to as metallocene), restricted geometry catalysts, phosphinimine catalysts and polyvalent aryloxyether catalysts (generally referred to as bisphenyl phenoxy). The term ULDPE refers to polyethylenes having densities of 0.855 g / cm3 to 0.912 g / cm3, which are generally prepared with Ziegler-Natta catalysts, chromium catalysts, or single-site catalysts including, but not limited to, mono-catalysts. or substituted bis-cyclopentadienyl (usually called metallocene), restricted geometry catalysts, phosphinimine catalysts, and polyvalent aryloxyether catalysts (usually called bisphenyl phenoxy). ULDPEs include, but are not limited to, polyethylene plastomers (ethylene-based) and polyethylene elastomers (ethylene-based). Polyethylene elastomeric plastomers (ethylene-based) generally have densities of 0.855 g / cm3 to 0.912 g / cm3. Blend, polymer blend and similar terms mean a composition of two or more polymers. Such a mixture may or may not be miscible. Such a mixture may or may not have separate phases. Such a mixture may or may not contain one or more domain configurations, as determined from transmission electron spectroscopy, light scattering, X-ray scattering, and any other methods known in the art. Blends are not laminates, but one or more layers of a laminate may contain a blend. Such blends may be prepared as dry blends, formed in situ (e.g., in a reactor), cast blends, or by other techniques known to those in the mid-level trade. Multilayer structure or multilayer film means any structure having more than one layer. For example, the multilayer structure (e.g., a film) may have two, three, four, five or more layers. A multilayer structure can be described as having layers designated by letters. For example, a three-layer structure designated A / B / C may have a core layer, B, and two outer layers, A and C. Likewise, a structure that has two core layers, B and C, and two outer layers, A and D, would be designated A / B / C / D. The expressions it comprises, which includes, which it has and its derivatives are not intended to exclude the presence of any additional component, step or procedure, whether it is specifically described or not. For the avoidance of doubt, all compositions claimed with the use of the term comprising may include any additive, adjuvant or additional compound, whether polymeric or not, unless otherwise indicated. On the contrary, the expression that essentially consists of excludes from the scope of any successive recitation any other component, step or procedure, except those that are not essential for operation. The expression consisting of excludes any component, step or procedure not specifically outlined or enumerated. Multilayer films Reference will now be made to embodiments of the multilayer films described herein. Embodiments of multilayer films described herein may include at least three layers. Multilayer films of the present disclosure may include at least three layers and even up to 13 or more layers. The number of layers in the multilayer film may depend on several factors including, for example, the composition of each layer in the multilayer film, the desired properties of the multilayer film, the desired end-use application of the multilayer film, the process multilayer film manufacturing and others. The multilayer film may be a three-layer structure designated A / B / C, where the first layer may be designated A, the second layer may be designated B, and the third layer may be designated C. In some embodiments, the first layer It can be called the central layer. In some embodiments, one or both of the second layer and the third layer may be referred to as surface layers or outer layers. In embodiments, the first layer may be placed between the second layer and the third layer. In additional embodiments, the second layer and the third layer may be the outermost layers of the multilayer film. As used herein, the outermost layers of the multilayer film can be understood to mean that there cannot be another layer deposited on the outermost layer, so that the outermost layer is in direct contact with the surrounding air. In embodiments, the first layer and the second layer, the first layer and the third layer, or both pairs, may be in direct contact with each other. As used herein, direct contact means that there may be no other layers placed between the two layers that are in direct contact with each other. In other embodiments, the multilayer film may include one or more additional layers, for example, one or more coextrusion adhesives, which may be disposed between the first layer (the core layer) and the second layer (an outer layer), between the first layer (the central layer) and the third layer (another outer layer), or between both pairs. As described in more detail later in this description, multilayer films can include a first layer that includes a polyethylene composition, a second layer that includes a first polyolefin, and a second layer that includes a second polyolefin. The first polyolefin and the second polyolefin may have the same or different compositions. It should be understood that any of the above layers may further include one or more additives known to those of ordinary skill in the art, for example, plasticizers, stabilizers including viscosity stabilizers, hydrolytic stabilizers, primary and secondary antioxidants, ultraviolet light absorbers, antistatic agents, dyes, pigments or other coloring agents, inorganic fillers, flame retardants, lubricants, reinforcing agents, such as fiberglass and sheets, synthetic fiber or pulp (e.g., aramid), foaming or blowing agents, adjuvants processing, slip additives, anti-blocking agents, such as silica or talc, release agents, tack-improving resins or combinations of two or more of these. Inorganic fillers, such as calcium carbonate, and the like may also be incorporated into one or more of the first layer, the second layer, the third layer, and combinations thereof. In some embodiments, each of the first layer, the second layer, the third layer and combinations may include up to 5 weight percent of such additional additives based on the total weight of the respective layer. All individual values ​​and subranges from 0 wt% to 5 wt% are included and described herein; For example, the total amount of additives in the first layer, the second layer or the third layer may be from 0.5% by weight to 5% by weight, from 0.5% by weight to 4% by weight, from 0.5% by weight to 3% by weight, from 0.5% by weight to 2% by weight, from 0.5% by weight to 1% by weight, from 1% by weight to 5% by weight, from 1% by weight to 4% by weight, 1% by weight to 3% by weight, from 1% by weight to 2% by weight, from 2% by weight to 5% by weight, from 2% by weight to 4% by weight, from 2% by weight to 3 % by weight, from 3% by weight to 5% by weight, from 3% by weight to 4% by weight or from 4% by weight to 5% by weight depending on the total weight of the respective layer. The incorporation of the additives can be carried out by any known process, for example, by dry mixing, by extrusion of a mixture of the various constituents, by the conventional masterbatch technique or by a similar process. The multilayer films of the present disclosure can have a variety of thicknesses. The thickness of the multilayer film may depend on several factors including, for example, the number of layers in the multilayer film, the composition of the layers in the multilayer film, the desired properties of the multilayer film, the desired end-use application of the film, the manufacturing process of multilayer film and others. In embodiments, the multilayer film may have a thickness of less than 500 micrometers (pm or micrometers). In other embodiments, the multilayer film may have a thickness of 15 pm to 500 pm or 15 pm to 260 pm. In other embodiments, the multilayer film may have a total thickness of 15 pm to 200 pm, 15 pm to 150 pm, 15 pm to 100 pm, 15 pm to 50 pm, 50 pm to 500 pm, 50 pm to 2 60 pm, from 50 pm to 2 00 pm, from 50 pm to 150 pm, from 5 0 pm to 100 pm, from 100 pm to 500 pm, from 100 pm to 2 60 pm, from 100 pm to 2 00 pm, from 100 pm to 150 pm, from 150 pm to 500 pm, from 150 pm to 2 60 pm, from 150 pm to 2 00 pm, from 200 pm to 500 pm, from 200 pm to 260 pm or from 260 pm to 500 pm. The multilayer films of the present disclosure may have an overall density that depends on various factors including, for example, the number of layers in the multilayer film, the composition of the layers in the multilayer film, the desired properties of the multilayer film, the desired end-use application of the film, the manufacturing process of the multilayer film and others. In embodiments, the multilayer film may have a total density of at least 0.925 grams per cubic centimeter (g / cm3). In other embodiments, the total density of the multilayer film may be 0.925 g / cm3 to 0.960 g / cm3, 0.925 g / cm3 to 0.940 g / cm3, 0.925 g / cm3 to 0.935 g / cm3, 0.925 g / cm3 to 0.930 g / cm3, from 0.930 g / cm3 to 0.940 g / cm3, from 0.930 g / cm3 to 0.935 g / cm3 or from 0.935 g / cm3 to 0.940 g / cm3. The multilayer films of the present disclosure may have relatively good dart drop resistance when measured in accordance with ASTM D1709, Method A. In embodiments, the multilayer film may have a dart drop impact of at least 300 grams when is measured in accordance with ASTM D1709, Method A. In other embodiments, the multilayer film may have a dart drop impact of 600 grams to 2000 grams, 600 grams to 1500 grams, 600 grams to 1000 grams, 700 grams to 2000 grams, 700 grams to 1500 grams, 700 grams to 1000 grams, 1000 grams to 2000 grams, 1000 grams to 1500 grams or 1500 grams to 2000 grams when measured in accordance with ASTM D1709, Method A. In additional embodiments, the multilayer films of the present description can ΜΛ / 1 / have relatively good dart drop resistance when measured in accordance with ASTM D1709, Method B. In embodiments, the multilayer film may have a dart drop impact of at least 300 grams when measured in accordance with ASTM D1709, Method B. In other embodiments, the multilayer film may have a dart drop impact of 400 grams to 2000 grams, 400 grams to 1500 grams, 400 grams to 1000 grams, 700 grams to 2000 grams, 700 grams to 1500 grams, 700 grams to 1000 grams, 1000 grams to 2000 grams, 1000 grams to 1500 grams or 1500 grams to 2000 grams when measured in accordance with ASTM D1709, Method A. The multilayer films of the present disclosure may have a tensile creep in a transverse direction of less than 50%, when measured in accordance with ASTM 2990. In other embodiments, the multilayer film may have a tensile creep of less than 40% or less. of 30%, when measured in accordance with ASTM 2990, The multilayer films of the present disclosure may have a puncture energy at break greater than 40 ft*lbf / in3, when measured in accordance with the test methods described later in this disclosure. In other embodiments, the multilayer film may have a puncture energy at break greater than 50 ft*lbf / in3 or 60 ft*lbf / in3, when measured in accordance with the test methods described later in this description. The multilayer films of the present disclosure may have an average secant modulus in one machine direction of at least 344.73 MPa (50,000 psi), when measured in accordance with ASTM D882. In other embodiments, the multilayer film may have an average secant modulus in one machine direction of at least 379.21 MPa (55,000 psi) or 413.68 MPa (60,000 psi), when measured in accordance with ASTM D882. The multilayer films of the present disclosure may have an average secant modulus in a transverse direction of at least 379.21 MPa (55,000 psi), when measured in accordance with ASTM D882. In other embodiments, the multilayer film may have an average secant modulus in a transverse direction of at least 413.68 MPa (60,000 psi) or 482.63 MPa (70,000 psi), when measured in accordance with ASTM D882. Middle layer As noted above, the multilayer films described herein may include a core layer. In the multilayer film designated as a three-layer structure, A / B / C, the middle layer may be designated as B. In some embodiments, the middle layer may be referred to as the first layer. In additional embodiments, the center layer may be in direct contact with one or both of the second layer and the third layer. The core layer of the multilayer films of the present disclosure can have a variety of thicknesses. The thickness of the core layer may depend on several factors including, for example, the composition of the core layer, the desired overall properties of the multilayer film, the desired end-use application of the multilayer film, the manufacturing process of the multilayer film and others. In embodiments, the core layer may have a thickness of 0.5 micrometers (pm or microns) to 60 pm. In other embodiments, the second layer may have a thickness of from 0.5 pm to 50 pm, from 0.5 pm to 25 pm, from 0.5 pm to 10 pm, from 0.5 pm to 5 pm, from 0.5 pm to 1.0 pm, from 1.0 pm to 50 pm, from 1.0 pm to 25 pm, from 1.0 pm to 10 pm, from 1.0 pm to 5 pm, from 5 pm to 50 pm, from 5 pm to 2 5 pm, from 5 pm to 10 pm, from 10 pm to 5 0 pm, from 10 pm to 2 5 pm or from 25 pm to 50 pm. The core layer of the multilayer films described herein may constitute from 5% by weight to 90% by weight of the total weight of the multilayer film. In some embodiments, the core layer may constitute from 5% by weight to 70% by weight, from 5% by weight to 60% by weight, from 5% by weight to 50% by weight, from 5% by weight to 40%. by weight, from 5% by weight to 30% by weight, from 5% by weight to 20% by weight, from 5% by weight to 10% by weight, from 10% by weight to 40% by weight, from 10% by weight to 30% by weight, from 10% by weight to 20% by weight, from 20% by weight to 40% by weight, from 20% by weight to 30% by weight or from 30% by weight to 40% by weight weight μλ / total weight of the multilayer film. The core layer may include a polyethylene composition, which will be described in more detail later in this description. The polyethylene composition can exhibit a balance of toughness and tear resistance, allowing for multilayer films with improved abuse resistance properties (i.e., dart, puncture energy, tear). For example, the polyethylene composition described herein may have high dart drop resistances at relatively high densities. As described later in this description in more detail, such improved properties may include improved creep, stretch and toughness. These improved properties may further enable multilayer films that can be produced with fewer materials (thickness reduction, i.e., thinner film thicknesses are used), or with a more simplified process, compared to conventional multilayer films. In one or more embodiments, the core layer may include at least 50% by weight of the polyethylene composition, based on the total weight of the core layer. In some embodiments, the core layer may include from about 10 wt.% to about 100 wt.%, from about 10 wt.% to about 80 wt.%, from about 10 wt.% to about 60 % by weight, about 10% by weight to about 40% by weight, from about 10% by weight to about 20% by weight, from about 20% by weight to about 100% by weight, from about 20% by weight to about 80 % by weight, from about 20% by weight to about 60% by weight, from about 20% by weight to about 40% by weight, from about 40% by weight to about 100% by weight, about 40% by weight to about 80% by weight, from about 40% by weight to about 60% by weight, from about 60% by weight to about 100% by weight, from about 60% by weight to about 80% by weight or from about 80% by weight to about 100% by weight of the composition of the total weight of the central layer. polyethylene >, In some embodiments, the core layer may include a blend of one or more additional materials with the polyethylene composition. In embodiments, the blend may include a high-density polyethylene (HDPE), a low-density polyethylene (LDPE), or combinations. Optionally, in some embodiments, the core layer may include a high-density polyethylene (HDPE). A high-density polyethylene may be incorporated into the core layer to increase the rigidity of the core layer. In some applications, it may be important for the multilayer film to have adequate stiffness, demonstrated as a function of tensile modulus, for example, to prevent ΜΛ / 1 / deformation and breakage. In embodiments, the high-density polyethylene has a density of 0.935 g / cm3 and up to about 0.980 g / cm3 when measured in accordance with ASTM D7 92. In another embodiment, the high-density polyethylene may have a density of 0.935 g / cm3a 0.935 g / cm3a 0.940 g / cm3a 0.940 g / cm3a 0.950 g / cm3a 0.950 g / cm3a 0.970 g / cm3, 0.950 g / cm3, 0.980 g / cm3, 0.960 g / cm3, 0.980 g / cm3, 0.960 g / cm3, 0.935 g / cm3a 0.935 g / cm3a 0.940 g / cm3a 0.940 g / cm3a. 950 g / cm3a 0.960 g / cm3a 0.960 g / cm3, 0.940 g / cm3, 0.970 g / cm3, 0.950 g / cm3, 0.97 0 g / cm3, 0.98 0 g / cm3, 0.960 g / cm3 to 0.970 g / cm3 or 0.970 g / cm3 to 0.980 g / cm3. In one or more embodiments, the core layer may include a high-density polyethylene having a melt index (I2) of 0.1 grams per 10 minutes (g / 10 min) to 10.0 g / 10 min when measured in accordance with ASTM. D1238 at a load of 2.16 kg and a temperature of 190°C. It is also contemplated that the melt index (I2) of high-density polyethylene may be from 0.1 g / 10 min to 5.0 g / 10 min, from 0.1 g / 10 min to 1.0 g / 10 min, or from 1.0 g / 10 min to 10.0 g / 10 min, from 1.0 g / 10 min to 5.0 g / 10 min or from 5.0 g / 10 min to 10.0 g / 10 min. Various methodologies are contemplated to produce high-density polyethylene. For example, high-density polyethylene resins can be manufactured by using Ziegler-Natta catalyst systems, ΜΛ / chromium or single site catalysts including, but not limited to, bis-metallocene catalysts and restricted geometry catalysts. In one or more embodiments, the core layer may include up to 50% by weight of high-density polyethylene, based on the total weight of the core layer. In some embodiments, the core layer may include from about 0% by weight to about 50% by weight, from about 0% by weight to about 40% by weight, from about 0% by weight to about 20% by weight, about 20% by weight to about 50% by weight, from about 20% by weight to about 40% by weight or from about 40% by weight to about 50% by weight of high density polyethylene, in function of the total weight of the central layer. Optionally, in some embodiments, the core layer may include a low density polyethylene (LDPE). In one or more embodiments, the low-density polyethylene may have a melt index of 0.1 g / 10 min to 10.0 g / 10 min when measured in accordance with ASTM D1238 at a load of 2.16 kg and a temperature of 190°C. . In other embodiments, the low-density polyethylene may have a melt index of 0.1 g / 10 min to 5.0 g / 10 min, or 0.5 g / 10 min to 5.0 g / 10 min, or 0.5 g / 10 min to 2.0 g / 10 min. In embodiments, the low-density polyethylene may have a density of 0.916 g / cm3 to 0.935 g / cm3 when measured in accordance with ASTM. D792. In another embodiment, the low-density polyethylene may have a density of 0.916 g / cm3 to 0.925 g / cm3. In one or more embodiments, the core layer may include less than 50% by weight of low-density polyethylene, based on the total weight of the core layer. In some embodiments, the core layer may include from about 0 wt.% to about 50 wt.%, from about 0 wt.% to about 40 wt.%, from about 0 wt.% to about 20 % by weight, from about 20% by weight to about 50% by weight, from about 20% by weight to about 40% by weight or from about 40% by weight to about 50% by weight of low density polyethylene , depending on the total weight of the central layer. Outer layers As noted above, the multilayer films described herein may include outer layers, which may also be referred to as surface layers. The outer layers may include the second layer and the third layer. In the multilayer film designated as three-layer structure, A / B / C, the outer layers may be designated as A and C. The second layer may be designated as A. The third layer may be designated as C. In further embodiments, the second layer , the third layer or both may be the outermost layers of the multilayer film. In additional embodiments, the second layer, the third layer, or both may be in direct contact with the first layer. The second layer, the third layer or both of the multilayer film may, in each case, have a thickness of 0.5 micrometers (pm or micrometers) to 60 pm. In other embodiments, the second layer, the third layer, or both of the multilayer film may have a thickness of 0.5 to 50 pm, 0.5 pm to 25 pm, 0.5 pm to 10 pm, 0.5 pm to 5 pm, 0.5 pm to 1.0 pm, from 1.0 pm to 50 pm, from 1.0 pm to 25 pm, from 1.0 pm to 10 pm, from 1.0 pm to 5 pm, from 5 pm to 50 pm, from 5 pm to 25 pm, from 5 pm to 10 pm, from 10 pm to 50 pm, from 10 pm to 25 pm or from 25 pm to 50 pm. The second layer, the third layer or both of the multilayer film may constitute from 5% by weight to 90% by weight of the total weight of the multilayer film. In some embodiments, the second layer, the third layer or both of the multilayer film of Example Embodiment 1 may constitute from 10% by weight to 90% by weight, from 20% by weight to 80% by weight, from 30% by weight to 60% by weight or from 30% by weight to 40% by weight of the total weight of the multilayer film. In various embodiments, the second layer, the third layer, or both may include one or more materials that impart properties into the multilayer film that aid in stretching, processability, and others. In some embodiments, the second layer and the third layer may include the same materials. In other embodiments, the second layer and the third layer may include different materials. In embodiments, the second layer may include a first polyolefin. In embodiments, the third layer may include a second polyolefin. The first polyolefin and the second polyolefin may have the same or different compositions. In some embodiments, the first polyolefin, the second polyolefin, or both may include a polyethylene having a density of 0.900 g / cm3 to 0.970 g / cm3. In some embodiments, the polyethylene of the second layer, the third layer, or both may include one or more of an LLDPE, an HDPE, an MDPE, and an LDPE. In one or more embodiments, the second layer, the third layer, or both may include a linear low density polyethylene (LLDPE) having a density of 0.905 g / cm3 to 0.930 g / cm3 when measured in accordance with ASTM D7 92. In another In this embodiment, the density of linear low-density polyethylene can be from 0.905 g / cm3 to 0.925 g / cm3, from 0.905 g / cm3 to 0.920 g / cm3, from 0.905 g / cm3 to 0.915 g / cm3, from 0.905 g / cm3 to 0.910 g / cm3. cm3, from 0.910 g / cm3 to 0.930 g / cm3, from 0.910 g / cm3 to 0.925 g / cm3, from 0.910 g / cm3 to 0.920 g / cm3, from 0.910 g / cm3 to 0.915 g / cm3, from 0.915 g / cm3 to 0.930 g / cm3 cm3, from 0.915 g / cm3 to 0.925 g / cm3, from 0.915 g / cm3 to 0.920 g / cm3, from 0.920 g / cm3 to 0.930 g / cm3, from 0.920 g / cm3 to 0.925 g / cm3, from 0.925 g / cm3 to 0.930 g / cm3. In one or more embodiments, the second layer, the third layer, or both may include a linear low density polyethylene (LLDPE) having a melt index (I2) of 0.2 grams per 10 minutes (g / 10 min) at 2.0 g. / 10 min when measured in accordance with ASTM D1238. It is also contemplated that the melt index (I2) of linear low density polyethylene may be from 0.2 g / 10 min to 1.5 g / 10 min, from 0.2 g / 10 min to 1.0 g / 10 min, or from 0.2 g / 10 min. 10 min to 0.5 g / 10 min, 0.5 g / 10 min to 2.0 g / 10 min, 0.5 g / 10 min to 1.5 g / 10 min, 0.5 g / 10 min to 1.0 g / 10 min, 1.0 g / 10 min to 2.0 g / 10 min from 1.0 g / 10 min to 1.5 g / 10 min or from 1.5 g / 10 min to 2.0 g / 10 min. According to embodiments, the linear low-density polyethylene may have a molecular weight distribution, expressed as the ratio of weight average molecular weight to number average molecular weight (Mw / Mn), in the range of 3.5 to 5.5. . In additional embodiments, the linear low density polyethylene may have a molecular weight distribution in the range of 3.5 to 4.5 or 4.5 to 5.5. According to one or more additional embodiments, the linear low density polyethylene may have a zero shear viscosity ratio of 1.2 to 3.0, when measured in accordance with the test methods described herein. In other embodiments, the linear low-density polyethylene may have a zero shear viscosity ratio of 1.2 to 2.5, 1.2 to 2.0, 2.0 to 3.0, 2.0 to 2.5, or 2.5 to 3.0. Various methodologies are contemplated to produce linear low-density polyethylenes. For example, linear low-density polyethylene resins can be manufactured through the use of ZieglerNatta catalyst systems, resin produced through the use of single-site catalysts including, but not limited to, bis-metallocene catalysts and constrained geometry catalysts, and resin produced through the use of postmetallocene molecular catalysts. Linear low-density polyethylene resins may include linear, substantially linear, or heterogeneous polyethylene copolymers or homopolymers. Linear low density polyethylene resins may contain fewer long chain branches than LDPE and include substantially linear polyethylenes which are further defined in US Patent No. 5,272,236, US Patent No. 5,278,272, US Patent No. 5,582,923 and US Patent No. 5,733,155; homogeneously branched linear ethylene polymer compositions, such as those of US Patent No. 3,645,992; heterogeneously branched ethylene polymers, such as those prepared according to the process described in US Patent No. 4,076,698; and mixtures thereof (such as those described in US Patent No. 3,914,342 or US Patent No. 5,854,045). Linear low-density polyethylene resins can be manufactured by gas phase, solution or suspension phase polymerization or any combination thereof, using any type of reactor or reactor configuration known in the art. In one or more embodiments, the second layer, the third layer, or both may include 0% by weight to 100% by weight of linear low-density polyethylene, based on the total weight of the respective layer. In some embodiments, the second layer, the third layer, or both may include about 50% by weight to about 100% by weight, from about 50% by weight to about 80% by weight, from about 50% by weight to about 60% by weight, from about 60% by weight weight to about 100% by weight, from about 60% by weight to about 80% by weight or from about 80% by weight to about 100! % by weight of LLDPE, depending on the total weight of the respective layer. Optionally, in some embodiments, the second layer, the third layer, or both may include a high-density polyethylene (HDPE) having a density of 0.935 g / cm3 and up to about 0.980 g / cm3 when measured in accordance with ASTM D792. In another embodiment, the high-density polyethylene may have a density of 0.935 g / cm3 to 0.970 g / cm3, of 0.935 g / cm3 to 0.960 g / cm3, of 0.935 g / cm3 to 0.950 g / cm3, of 0.935 g / cm3a 0.94 0 g / cm3, from 0.940 g / cm3a 0.98 0 g / cm3, from 0.940 g / cm3 to 0.970 g / cm3, from 0.940 g / cm3 to 0.960 g / cm3, from 0.940 g / cm3 to 0.950 g / cm3, from 0.950 g / cm3 to 0.980 g / cm3, from 0.950 g / cm3 to 0.970 g / cm3, from 0.950 g / cm3 to 0.960 g / cm3, from 0.960 g / cm3 to 0.980 g / cm3, 0.960 g / cm3 to 0.970 g / cm3 0.970 g / cm3 to 0.980 g / cm3. In one or more embodiments, the second layer, the third layer, or both may include a high-density polyethylene having a melt index (I2) of 0.1 grams per 10 minutes (g / 10 min) to 10.0 g / 10 min when It is measured in accordance with ASTM D1238 at a load of 2.16 kg and a temperature of 190°C. It is also contemplated that the melt index (I2) of high-density polyethylene may be from 0.1 g / 10 min to 5.0 g / 10 min, from 0.1 g / 10 min to 1.0 g / 10 min, or from 1.0 g / 10 min to 10.0 g / 10 min, from 1.0 g / 10 min to 5.0 g / 10 min or from 5.0 g / 10 min to 10.0 g / 10 min. Various methodologies are contemplated to produce high-density polyethylene. For example, high-density polyethylene resins can be manufactured by using Ziegler-Natta catalyst systems, chromium catalysts, or single-site catalysts including, but not limited to, bis-metallocene catalysts and constrained geometry catalysts. In one or more embodiments, the second layer, the third layer, or both may include up to 50% by weight of high-density polyethylene, based on the total weight of the respective layer. In some embodiments, the second layer, the third layer, or both may include from about 0% by weight to about 50% by weight, from about 0% by weight to about 40% by weight, from about 0% by weight to about 20% by weight, from about 20% by weight to about 50% by weight, from about 20% by weight to about 40% by weight weight or from about 40% by weight to about 50% by weight of high density polyethylene, in depending on the total weight of the respective layer. Optionally, in some embodiments, the second layer, the third layer, or both may include a medium density polyethylene (MDPE). In one or more embodiments, the medium density polyethylene may have a melt index of 0.1 g / 10 min to 10.0 g / 10 min when measured in accordance with ASTM D1238 at a load of 2.16 kg and a temperature of 190°C. . In other embodiments, the medium density polyethylene may have a melt index of 0.1 g / 10 min to 5.0 g / 10 min, or 0.5 g / 10 min to 5.0 g / 10 min, or 0.5 g / 10 min to 2.0 g / 10 min. In embodiments, the medium density polyethylene may have a density of 0.924 g / cm3 to 0.942 g / cm3 when measured in accordance with ASTM D792. In another embodiment, the low-density polyethylene may have a density of 0.924 g / cm3 to 0.936 g / cm3. In one or more embodiments, the second layer, the third layer, or both may include less than 50% by weight of medium density polyethylene. depending on the total weight of the respective layer. In some embodiments, the second layer, the third layer, or both may include from about 0 wt.% to about 100 wt.% or, from about 0 wt.% to about 80 wt.%, from about 0 % by weight to about 60% by weight, from about 0% by weight to about 0% by weight, from about 0% by weight to about 20% by weight, from about 10% by weight to about from 100% by weight, from about 10% by weight to about 80% by weight, from about 10% by weight to about 60% by weight, from about 10% by weight to about 40% by weight , from about 10% by weight to about 20% by weight, from about 20% by weight to about 100% by weight, from about 20% by weight to about 80% by weight, from about 20 % by weight to about 60% by weight, from about 20% by weight to about 40% by weight, from about 40% by weight to about 100% by weight, from about 40% by weight to about from 80% by weight, from about 40% by weight to about 60% by weight, from about 60% by weight to about 100% by weight, from about 60% by weight to about 80% by weight or from about 80% by weight to about 100% by weight of MDPE, depending on the respective layer. of the total weight The second layer, the third layer or both may include a polyethylene composition, which will be described in more detail later in this description. The polyethylene composition can exhibit a balance of toughness and tear resistance, allowing for multilayer films with improved abuse resistance properties (i.e., dart, puncture energy, tear). For example, the polyethylene composition described herein may have high dart drop resistances at relatively high densities. As described below in more detail, such improved properties may include improved creep, stretch and toughness. These improved properties may further enable multilayer films that can be produced with fewer materials (thickness reduction, i.e., thinner film thicknesses are used), or with a more simplified process, compared to conventional multilayer films. In one or more embodiments, the second layer, the third layer or both can include? from about 0% by weight to about 100% by weight, from about 0% by weight to about 80% by weight, from about 0% by weight to about 60% by weight, from about 0% by weight to about 0% by weight, from about 0% by weight to about 20% by weight, from about 10% by weight to about 100% by weight, from about 10% by weight to about 80% by weight, from about 10% by weight to μλ / about 60% to 40% by weight, from about 10% 10% by weight to about 20% by weight, from about 20% by weight to about 100% by weight , from about 20% by weight to about 80% by weight, from about 20% by weight to about 60% by weight, from about 20% by weight to about 40% by weight, from about 4 0% by weight to about 100% by weight, from about 40% by weight to about 80% by weight, from about 40% by weight to about 60% by weight, from about 60% by weight to about 100% by weight, from about 60% by weight to about 80% by weight or from about 80% by weight to about 100% by weight of the polyethylene composition, based on the total weight of the respective layer. Optionally, in some embodiments, the second layer, the third layer, or both may include a low density polyethylene (LDPE). In one or more embodiments, the low-density polyethylene may have a melt index of 0.1 g / 10 min to 10.0 g / 10 min when measured in accordance with ASTM D1238 at a load of 2.16 kg and a temperature of 190°C. . In other embodiments, the low-density polyethylene may have a melt index of 0.1 g / 10 min to 5.0 g / 10 min, or 0.5 g / 10 min to 5.0 g / 10 min, or 0.5 g / 10 min to 2.0 g / 10 min. In embodiments, the low-density polyethylene may have a density of 0.916 g / cm3 to 0.935 g / cm3 when measured in accordance with ASTM D792. In another embodiment, the low-density polyethylene may have a density of 0.916 g / cm3 to 0.925 g / cm3. In one or more embodiments, the second layer, the third layer, or both may include less than 50% by weight of low density polyethylene, based on the total weight of the respective layer. In some embodiments, the second layer, the third layer, or both may include about 0% in weight to about 50% by weight, from about 0% by weight to about 40% by weight, from about 0% by weight to about 20% by weight, from about 20% by weight to about 50 % by weight, from about 20% by weight to about 40% by weight or from about 40% by weight to about 50% by weight of low density polyethylene, depending on the total weight of the respective layer. Additional layers in As noted above, in some embodiments, the multilayer film may include one or more additional layers. In some embodiments, a multilayer film of the present disclosure may comprise up to 11, 13, 15 or more layers. The one or more additional layers may include one or more materials that impart properties into the multilayer film that assist in stretching, processability, rigidity, and others. In embodiments, the one or more additional layers may include one or more polyolefins. In some embodiments, one or more polyolefins may include one or more polyethylenes having a density of 0.900 g / cm3 to 0.970 g / cm3. In some embodiments, the one or more polyethylenes of the one or more additional layers may include an LLDPE, an HDPE, an MDPE, LDPE, polyethylene compositions, or combinations. In some embodiments, multilayer films may optionally include coextrusion adhesives to facilitate interlayer adhesion. In some embodiments, coextrusion adhesives may be placed between the core layer and each outer layer. In a multilayer film designated as A / adhesive-l / B / adhesive-2 / C, the core layer may be designated as B, the outer layers may be designated as A and C, and the coextrusion adhesives may be designated as adhesive-1 and adhesive. -2. The second layer may be designated as A. The third layer may be designated as C. In further embodiments, the second layer, the third layer, or both may be the outermost layers of the multilayer film. In additional embodiments, a first coextrusion adhesive (adhesive-1) may be in direct contact with one or both of the first layer and the second layer. In additional embodiments, a second coextrusion adhesive (adhesive-2) may be in direct contact with one or both of the first layer and the third layer. In some such embodiments, the coextrusion adhesives may comprise ΜΛ / a polyethylene grafted with maleic anhydride or other functionalized resins known to be useful as co-extrusion adhesives. A suitable commercial example of maleic anhydride grafted polyethylene is AMPLIFY™ TY 1057 from The Dow Chemical Company (Midland, MI), and others known to those in the mid-level trade may also be used. In some embodiments, the multilayer films may optionally include an insulator. Suitable insulating layers can be chosen from layers comprising ethylene vinyl alcohol copolymer, cyclic olefinic copolymers, polyvinyl acetate or mixtures of one or more of these polymers with polyethylene, polyvinyl alcohol or polyamide. Example mode 1 As noted above, multilayer films are needed that exhibit physical properties, such as dart / bag drop, puncture, tear, and creep resistance, that meet customer and industry requirements. In some embodiments, these multilayer films can still maintain physical properties that meet customer and industry requirements even at reduced thicknesses. Reference will now be made to one embodiment of the multilayer film described herein, referred to herein as Example Embodiment 1. Example Embodiment 1 may include a first layer that includes a polyethylene composition, a second layer that includes a first low-density polyethylene, and a third layer that includes a second linear low-density polyethylene. The core layer of Example Embodiment 1 may include a polyethylene composition, which will be described in more detail later in this description. When used in a film, the polyethylene composition can exhibit a balance of toughness and stiffness, allowing for multilayer films of Example Mode 1 with improved abuse resistance properties (i.e., dart, puncture energy, tear ). For example, use of the polyethylene composition described herein provides a core layer that exhibits high dart resistance at relatively high densities. These improved properties may further enable multilayer film embodiments of Exemplary Embodiment 1 that can be produced with fewer materials (thickness reduction, i.e., thinner film thicknesses are used), or with a more simplified process, compared to the conventional multilayer films. The multilayer film of Example Embodiment 1 may have a variety of thicknesses. In additional embodiments, the multilayer film of Example Embodiment 1 may have a thickness of less than 150 micrometers (pm or microns). In other embodiments, the multilayer film may have a thickness of 15 pm to 120 pm. In other embodiments, the multilayer film may have a total thickness of 25 pm to 100 pm, 25 pm to 75 pm, 25 pm to 50 pm, 50 pm to 150 pm, 50 pm to 100 pm, from 50 pm to 75 pm, from 75 pm to 150 pm, from 75 pm to 100 pm or from 100 pm to 150 pm. In embodiments, the multilayer film of Example Embodiment 1 may have a total density of at least 0.925 grams per cubic centimeter (g / cm3). In other embodiments, the total density of the multilayer film of Example Embodiment 1 may be 0.925 g / cm3 to 0.940 g / cm3, 0.925 g / cm3 to 0.935 g / cm3, 0.925 g / cm3 to 0.930 g / cm3, or 0.930 g / cm3 to 0.940 g / cm3, 0.930 g / cm3 to 0.935 g / cm3, or 0.935 g / cm3 to 0.940 g / cm3. In embodiments, the multilayer films of Example Embodiment 1 may have a relatively good dart drop resistance when measured in accordance with ASTM D1709, Method B. In embodiments, the multilayer film of Example Embodiment 1 may have a dart impact of at least 400 grams when measured in accordance with ASTM D1709, Method B. In other embodiments, the multilayer film of Example Embodiment 1 may have a dart impact of 400 grams to 2000 grams, from 400 grams to 1500 grams, from 400 grams to 1000 grams, from 700 grams to 2000 grams, 700 grams to 1500 grams, 700 grams to 1000 grams, 1000 grams to 2000 grams, 1000 grams to 1500 grams or 1500 grams to 2000 grams when measured in accordance with ASTM D1709, Method A. The multilayer film of Example Embodiment 1 may have an average secant modulus in one machine direction of at least 344.73 MPa (50,000 psi), when measured in accordance with ASTM D882. In other embodiments, the multilayer film may have an average secant modulus in one machine direction of at least 379.211 MPa (55,000 psi) or 413.68 MPa (60,000 psi), when measured in accordance with ASTM D882. The multilayer films of the present disclosure may have an average secant modulus in a transverse direction of at least 379.211 MPa (55,000 psi), when measured in accordance with ASTM D882. In other embodiments, the multilayer film may have an average secant modulus in a transverse direction of at least 413.68 MPa (60,000 psi) or 482.63 MPa (70,000 psi), when measured in accordance with ASTM D882. The central layer of the multilayer film of Example Embodiment 1 may have a thickness of 0.5 micrometers (pm or micrometers) to 60 pm. In other embodiments, the central layer may have a thickness of from 0.5 pm to 50 pm, from 0.5 pm to 25 pm, from 0.5 pm to 10 pm, from 0.5 pm to 5 pm, from 0.5 pm to 1.0 pm, from 1.0 pm to 5 0 pm, from 1.0 pm to 2 5 pm, from 1.0 pm to 10 pm, from 1.0 pm to 5 pm, from 5 pm to 50 pm, from 5 pm to 25 pm, from 5 pm to 10 pm, from 10 pm to 50 pm, from 10 pm to 25 pm or from 25 pm to 50 pm. The core layer of the multilayer films of Example Embodiment 1 may constitute 10% by weight to 80% by weight of the total weight of the multilayer film of Example Embodiment 1. In some embodiments, the core layer may constitute 10% by weight. % by weight to 60% by weight, from 10% by weight to 40% by weight, from 10% by weight to 30% by weight, from 10% by weight to 20% by weight, from 20% by weight to 80% by weight, from 20% by weight to 40% by weight, from 20% by weight to 30% by weight, from 30% by weight to 80% by weight, from 30% by weight to 60% by weight or from 30% by weight to 40% by weight of the total weight of the multilayer film of Example Embodiment 1. In one or more embodiments, the core layer of Example Embodiment 1 may include at least 10% by weight of the polyethylene composition, based on the total weight of the core layer. In some embodiments, the core layer may include from about 10 wt.% to about 100 wt.%, from about 10 wt.% to about 80 wt.%, from about 10 wt.% to about 60 % by weight, from about 10% by weight to about 40% by weight, from about 10% by weight to about 20% by weight, from about 20% by weight to about 100% by weight, about 20% by weight to about 80% by weight, from about 20% by weight to about 60% by weight, from about 20% by weight to about 40% by weight, from about 40% by weight weight to about 100% by weight, from about 40% by weight to about 80% by weight, from about 40% by weight to about 60% by weight, from about 60% by weight to about 100 % by weight of about 60% by weight to about 80% by weight or from about 80% by weight to about 100% by weight of the polyethylene composition, based on the total weight of the central layer. Optionally, in some embodiments, the core layer of Example Embodiment 1 may include a low density polyethylene (LDPE). In one or more embodiments, the core layer may include less than 50% by weight of low-density polyethylene, based on the total weight of the core layer. In some embodiments, the central layer of the Modality of Example 1 may include about 0 wt% to about 50 wt%, about 0 wt% to about 40 wt%, about 0 wt% to about 20 wt%, from about 20% by weight to about 50% by weight, from about 20% by weight to about 40% by weight or from about 40% by weight to about 50% by weight of low polyethylene density, in function of the total weight of the central layer. The second layer, the third layer or both of the multilayer film of Example Embodiment 1 may have, in each case, a thickness of 0.5 micrometers (pm or microns) to 60 pm. In other embodiments, the second layer, the third layer or both of the multilayer film of Example Embodiment 1 may have a thickness of 0.5 to 50 pm, 0.5 pm to 25 pm, 0.5 pm to 10 pm, 0.5 pm to 5 pm, from 0.5 pm to 1.0 pm, from 1.0 pm to 50 pm, from 1.0 pm to 25 pm, from 1.0 pm to 10 pm, from 1.0 pm to 5 pm, from 5 pm to 50 pm, from 5 pm to 25 pm, from 5 pm to 10 pm, from 10 pm to 50 pm, from 10 pm to 25 pm or from 25 pm to 50 pm. The second layer, the third layer or both of the multilayer film of Example Embodiment 1 may constitute from 10% by weight to 90% by weight of the total weight of the multilayer film of Example Embodiment 1. In some embodiments, the second layer, the third layer or both of the multilayer film of Example Embodiment 1 may constitute from 20% by weight to 80% by weight, from 30% by weight to 60% by weight or from 30% by weight to 40% by weight of the total weight of the multilayer film of Example Embodiment 1. In one or more embodiments, the second layer, the third layer, or both may include more than 50% by weight of linear low-density polyethylene, based on the total weight of the respective layer. In some embodiments, the second layer, the third layer or both may include from about 50% by weight to about 100% by weight, from about 50% by weight to about 80% by weight, from about 50% by weight to about 60% by weight, from about 60% by weight to about 100% by weight, from about 60% by weight to about 80% by weight or from about 80% by weight to about 100% by weight of LLDPE, based on the total weight of the respective layer. Optionally, in some embodiments, the second layer, the third layer or both of Example Embodiment 1 may include a low density polyethylene (LDPE). In one or more embodiments, the second layer, the third layer, or both may include less than 50% by weight of low density polyethylene, based on the total weight of the respective layer. In some embodiments, the second layer, the third layer, or both of Example Embodiment 1 may include from about 0 wt.% to about 50 wt.%, from about 0 wt.% to about 40 wt.% , from about 0% by weight to about 20% by weight, from about 20% by weight to about 50% by weight, from about 20% by weight to about 40% by weight or from about 40 % by weight to about 50% by weight of low-density polyethylene, based on the total weight of the respective layer. Example mode 2 As noted above, multilayer films are needed that exhibit physical properties, such as dart / bag drop, puncture, tear, and creep resistance, that meet customer and industry requirements. In some embodiments, these multilayer films can still maintain physical properties that meet customer and industry requirements even at reduced thicknesses. Reference will now be made to an embodiment of the multilayer film described herein, referred to herein as Exemplary Embodiment 2. Exemplary Embodiment 2 may include a first layer that includes a polyethylene composition and a high-density polyethylene, a second layer that includes a first low-density polyethylene, and a third layer that includes a second linear low-density polyethylene. The core layer of Example Embodiment 2 may include a polyethylene composition, which will be described in more detail later in this description. The polyethylene composition may exhibit a balance of toughness and tear resistance, allowing the multilayer films of Example Embodiment 2 to exhibit improved abuse resistance properties (i.e., dart, puncture energy, tear). For example, use of the polyethylene composition described herein provides a core layer that exhibits high dart resistance at relatively high densities. These improved properties may further enable multilayer film embodiments of Exemplary Embodiment 2 that can be produced with fewer materials (thickness reduction, i.e., thinner film thicknesses are used), or with a more simplified process, compared to the conventional multilayer films. The multilayer film of Example Embodiment 2 can have a variety of thicknesses. In additional embodiments, the multilayer film of Example Embodiment 2 may have a thickness of less than 500 micrometers (pm or microns). In other embodiments, the multilayer film may have a thickness of 15 pm to 500 pm or 15 pm to 260 pm. In other embodiments, the multilayer film may have a total thickness of 15 pm to 200 pm, 15 pm to 150 pm, 15 pm to 100 pm, 15 pm to 50 pm, 50 pm to 500 pm, 50 pm. to 260 pm, from 50 pm to 2 00 pm, from 5 0 pm to 150 pm, from 50 pm to 100 pm, from 100 pm to 500 pm, from 100 pm to 2 60 pm, from 100 pm to 2 00 pm, from 100 pm to 150 pm, from 150 pm to 500 pm, from 150 pm to 260 pm, from 150 pm to 200 pm, from 200 pm to 500 pm, from 200 pm to 260 pm or from 260 pm to 500 pm. In embodiments, the multilayer film of Example Embodiment 1 may have a total density of at least 0.925 grams per cubic centimeter (g / cm3). In other embodiments, the total density of the multilayer film of Example Embodiment 2 may be 0.925 g / cm3 to 0.940 g / cm3, 0.925 g / cm3 to 0.935 g / cm3, 0.925 g / cm3 to 0.930 g / cm3, or 0.930 g / cm3 to 0.940 g / cm3, 0.930 g / cm3 to 0.935 g / cm3, or 0.935 g / cm3 to 0.940 g / cm3. In embodiments, the multilayer film of Example Embodiment 2 may have a dart drop impact of at least 600 grams when measured in accordance with ASTM D1709, Method A. In other embodiments, the multilayer film of Example Embodiment 2 can have an impact per dart drop of 600 grams to 2000 grams, from 600 grams to 1500 grams, from 600 grams to 1000 grams, from 700 grams to 2000 grams, from 700 grams to 1500 grams, from 700 grams to 1000 grams, from 1000 grams to 2000 grams, from 1000 grams to 1500 grams or from 1500 grams to 2000 grams when measured in accordance with ASTM D1709, Method A. In additional embodiments, the multilayer films of Example Embodiment 2 may have a resistance to relatively good dart drop when measured in accordance with ASTM D1709, Method B. In embodiments, the multilayer film of Example Embodiment 2 may have a dart drop impact of at least 400 grams when measured in accordance with ASTM D1709, Method B. In other embodiments, the multilayer film of Example Embodiment 2 may have a dart impact of 400 grams to 2000 grams, 400 grams to 1500 grams, 400 grams to 1000 grams, 700 grams to 2000 grams, 700 grams to 1500 grams, 700 grams to 1000 grams, 1000 grams to 2000 grams, 1000 grams to 1500 grams or 1500 grams to 2000 grams when measured in accordance with ASTM D1709, method A. The multilayer film of Example Embodiment 2 may have a tensile creep in a transverse direction of less than 50%, when measured in accordance with ASTM 2990. In other embodiments, the multilayer film of Example Embodiment 2 may have a creep tensile strength less than 40% or less than 30%, when measured in accordance with ASTM 2990, The multilayer film of Example Embodiment 2 may have a puncture energy at break greater than 30 ft*lbf / in3, when measured in accordance with the test methods described later in this description. In other embodiments, the multilayer film of Example Embodiment 2 may have a puncture energy at break greater than 40 ft*lbf / in3 or 50 ft*lbf / in3, when measured in accordance with the test methods described later in this description. The multilayer film of Example Embodiment 2 may have an average secant modulus in one machine direction of at least 344.73 MPa (50,000 psi), when measured in accordance with ASTM D882. In other embodiments, the multilayer film may have an average secant modulus in one machine direction of at least 379.21 MPa (55,000 psi) or 413.68 MPa (60,000 psi), when measured in accordance with ASTM D882. The multilayer films of the present disclosure may have an average secant modulus in a transverse direction of at least 379.21 MPa (55,000 psi), when measured in accordance with ASTM D882. In other embodiments, the multilayer film may have an average secant modulus in a transverse direction of at least 413.68 MPa (60,000 psi) or 482.63 MPa (70,000 psi), when measured in accordance with ASTM D882. The central layer of the multilayer film of Example Embodiment 2 may have a thickness of 0.5 micrometers (pm or micrometers) to 60 pm. In other embodiments, the second layer may have a thickness of from 0.5 pm to 50 pm, from 0.5 pm to 25 pm, from 0.5 pm to 10 pm, from 0.5 pm to 5 pm, from 0.5 pm to 1.0 pm, from 1.0 pm to 5 0 pm, from 1.0 pm to 2 5 pm, from 1.0 pm to 10 pm, from 1.0 pm to 5 pm, from 5 pm to 50 pm, from 5 pm to 25 pm, from 5 pm to 10 pm, from 10 pm to 50 pm, from 10 pm to 25 pm or from 25 pm to 50 pm. The core layer of the multilayer films of Example Embodiment 2 may constitute 5% by weight to 60% by weight of the total weight of the multilayer film of Example Embodiment 2. In some embodiments, the core layer may constitute 5 % by weight to 30% by weight, from 5% by weight to 20% by weight, from 5% by weight to 10% by weight, from 10% by weight to 40% by weight, from 10% by weight to 30% by weight, from 10% by weight to 20% by weight, from 20% by weight to 40% by weight, from 20% by weight to 30% by weight or from 30% by weight to 40% by weight of the total weight of the multilayer film of Example Mode 2. In one or more embodiments, the core layer of Example Embodiment 2 may include at least 50% by weight of the polyethylene composition, based on the total weight of ΜΛ / 1 / the central layer. In some embodiments, the core layer may include from about 10 wt.% to about 100 wt.%, from about 10 wt.% to about 80 wt.%, from about 10 wt.% to about 60 % by weight, from about 10% by weight to about 40% by weight, from about 10% by weight to about 20% by weight, from about 20% by weight to about 100% by weight, from about 20% by weight to about 80% by weight, from about 20% by weight weight to about 60% by weight, from about 20% by weight to about 40% by weight, from about 40% by weight to about 100% by weight, from about 40% by weight to about 80 % by weight, from about 40% by weight to about 60% by weight, from about 60% by weight to about 100% by weight, from about 60% by weight to about 80% by weight or about 80% by weight to about 100% by weight of the polyethylene composition, depending on the total weight of the central layer. In embodiments, the core layer of Example Embodiment 2 may include a high-density polyethylene (HDPE). In one or more embodiments, the core layer may include up to 50% by weight of high-density polyethylene, based on the total weight of the core layer. In some embodiments, the core layer may include from about 0 wt.% to about 50 wt.%, from about 0 wt.% to about 40 wt.%, from about 0 wt.% to about 20 % by weight, from about 20% by weight to about 50% by weight, from about 20% by weight to about 40% by weight or from about 40% by weight to about 50% by weight of polyethylene high density, depending on the total weight of the central layer. The second layer, the third layer or both of the multilayer film of Example Embodiment 2 may have, in each case, a thickness of 0.5 micrometers (pm or micrometers) to 60 pm. In other embodiments, the second layer, the third layer or both of the multilayer film of Example Embodiment 1 may have a thickness of 0.5 to 50 pm, 0.5 pm to 25 pm, 0.5 pm to 10 pm, 0.5 pm to 5 pm, from 0.5 pm to 1.0 pm, from 1.0 pm to 50 pm, from 1.0 pm to 25 pm, from 1.0 pm to 10 pm, from 1.0 pm to 5 pm, from 5 pm to 50 pm, from 5 pm to 25 pm, from 5 pm to 10 pm, from 10 pm to 50 pm, from 10 pm to 25 pm or from 25 pm to 50 pm. The second layer, the third layer or both of the multilayer film of Example Embodiment 2 may constitute from 5% by weight to 40% by weight of the total weight of the multilayer film of Example Embodiment 2. In some embodiments, the second layer, the third layer or both of the multilayer film of Example Embodiment 2 may constitute from 5% by weight to 30% by weight, from 5% by weight to 20% by weight, from 5% by weight to 10% by weight, from 10% by weight to 40% by weight, from 10% by weight to 30% by weight, from 10% by weight to 20% by weight, from 20% by weight to 40% by weight, from 20% by weight to 30% by weight or from 30% by weight to 40% by weight of the total weight of the multilayer film of Example Embodiment 2. In one or more embodiments, the second layer, the third layer, or both of Exemplary Embodiment 2 may include from about 0 to about 100% by weight linear low-density polyethylene, based on the total weight of the respective layer. . In some embodiments, the second layer, the third layer, or both of Example Embodiment 2 may include from about 5 wt.% to about 100 wt.%, from about 10 wt.% to about 90 wt.% , from about 20% by weight to about 80% by weight, from about 30% by weight to about 70% by weight or from about 40% by weight to about 50% by weight of LLDPE, depending on the total weight of the respective layer. In one or more embodiments, the second layer, the third layer or both of Example Embodiment or 2 may include from about 0% by weight to about 100% by weight, from about 0% by weight to about 80% by weight, from about 0% by weight to about 60% by weight, from about 0% by weight to about 0% by weight, from about 0% by weight to about 20% by weight weight, from about 10% by weight to about 100% by weight, from about 10% by weight to about 80% by weight, from about 10% by weight to about 60% by weight, about about 10% 10% by weight weight to about about 40% 20% by weight, weight, from about 20% by weight to about 100% by weight, about 20% by weight to about 80% by weight, from about 20% by weight to about 60% by weight, from about 20% by weight to about 40% by weight, from about 40% by weight to about 100% by weight, from about 40% by weight to about 80% by weight, from about 40% by weight to about 60% by weight, from about 60% by weight to about 100% by weight, from about from 60% by weight to about 80% by weight or from about 80% by weight to about 100% by weight of MDPE, depending on the total weight of the respective layer. In one or more embodiments, the second layer, the third layer, or both of Example Embodiment 2 may include from about 0 wt.% to about 100 wt.%, from about 0 wt.% to about 80% by weight, from about 0% by weight to about 60% by weight, from about 0% by weight to about 0% by weight, from about 0% by weight to about 20% by weight, from about 10% by weight to about 100% by weight, from about 10% by weight to about 80% by weight, from about 10% by weight to about 60% by weight, from about 10% by weight to about 40% by weight, from about 10% by weight to about 20% by weight, from about 20% by weight to about 100% by weight, from about 20% by weight to about 80% by weight, from about 20% by weight to about 60% by weight, from about 20% by weight weight to about 40% by weight, from about 40% by weight to about 100% by weight, from about 40% by weight to about 80% by weight, from about 40% by weight to about 60 % by weight, from about 60% by weight to about 100% by weight, from about 60% by weight to about 80% by weight or from about 80% by weight. about 100% by weight of the polyethylene composition, depending on the total weight of the respective layer. In one or more embodiments, the second layer, the third layer, or both of Example Embodiment 2 may include less than 50% by weight of low density polyethylene, based on the total weight of the respective layer. In some embodiments, the second layer, the third layer, or both of Example Embodiment 2 may include from about 0 wt.% to about 50 wt.%, from about 0 wt.% to about 40 wt.% , from about 0% by weight to about 20% by weight, from about 20% by weight to about 50% by weight, from about 20% by weight to about 40% by weight or from about 40% by weight It weighs around 50% by weight of high-density polyethylene, depending on the total weight of the respective layer. Example mode 3 As noted above, multilayer films are needed that exhibit physical properties, such as temperature resistance, good gas insulation, high rigidity and exceptional toughness, without the use of polyamides. In conventional multilayer films, the inclusion of nylon in film structures presents a desirable balance of film properties between film and dart modulus, but may introduce process complexity, multilayer film structure complexity, films non-recyclable multilayer and higher material costs compared to the material costs of other polyolefins. Reference will now be made to an embodiment of the multilayer film described herein, referred to herein as Example Embodiment 3. Example Embodiment 3 may include a first layer that includes a first polyethylene composition and a first high-density polyethylene; a second layer including a second polyethylene composition, a second high-density polyethylene and a first low-density polyethylene; and a third layer that includes a third polyethylene composition and a second low-density polyethylene. The multilayer film embodiments of Example Embodiment 3, including the polyethylene composition described herein, may exhibit a superior balance of film properties (dart and modulus) by exhibiting a dart comparable to or better than conventional films. multilayers that include polyamides, and at the same time show a better modulus. The multilayer film of Example Embodiment 3 may have a variety of thicknesses. In additional embodiments, the multilayer film of Example Embodiment 3 may have a thickness of 25 to 260 pm. In other embodiments, the multilayer film may have a total thickness of 25 pm to 200 pm, 25 pm to 150 pm, 25 pm to 100 pm, 25 pm to 50 pm, 50 pm to 260 pm. pm, from 50 pm to 200 pm, from 50 pm to 150 pm, from 50 pm to 100 pm, from 100 pm to 260 pm, from 100 pm to 200 pm, from 100 pm to 150 pm, from 150 pm to 260 pm , from 150 pm to 200 pm or from 200 pm to 260 pm. In embodiments, the multilayer film of Example Embodiment 3 may have a total density of at least 0.925 grams per cubic centimeter (g / cm3). In other embodiments, the total density of the multilayer film of Example Embodiment 3 may be 0.925 g / cm3 to 0.940 g / cm3, 0.925 g / cm3 to 0.935 g / cm3, 0.925 g / cm3 to 0.930 g / cm3, 0.930 g / cm3 to 0.940 g / cm3, 0.930 g / cm3 to 0.935 g / cm3, or 0.935 g / cm3 to 0.940 g / cm3. In embodiments, the multilayer film of Example Embodiment 3 may have a dart drop impact of at least 300 grams when measured in accordance with ASTM D1709, Method A. In other embodiments, the multilayer film of Example Embodiment 3 can have an impact per dart drop of 300 grams to 1000 grams, from 300 grams to 500 grams, from 300 grams to 400 grams, from 400 grams to 1000 grams, from 400 grams to 1000 grams or from 400 grams to 500 grams when is measured in accordance with ASTM D1709, Method A. In further embodiments, the multilayer films of Example Embodiment 3 may have relatively good dart drop resistance when measured in accordance with ASTM D1709, Method B. In embodiments, The multilayer film of Example Embodiment 3 may have a dart drop impact of at least 300 grams when measured in accordance with ASTM D1709, Method B. In other embodiments, the multilayer film of Example Embodiment 3 may have a impact by dart drop from 300 grams to 1000 grams, from 300 grams to 500 grams, from 300 grams to 400 grams, from 400 grams to 1000 grams, from 400 grams to 1000 grams or from 400 grams to 500 grams when measured in accordance with ASTM D1709, method B. The multilayer film of Example Embodiment 3 may have an average secant modulus in one machine direction of at least 344.73 MPa (50,000 psi), when measured in accordance with ASTM D882. In other embodiments, the multilayer film may have an average secant modulus in one machine direction of at least 379.21 MPa (55,000 psi) or 413.68 MPa (60,000 psi), when measured in accordance with ASTM D882. The multilayer films of the present disclosure may have an average secant modulus in a transverse direction of at least 379.21 MPa (55,000 psi), when measured in accordance with ASTM D882. In other embodiments, the multilayer film may have an average secant modulus in a transverse direction of at least 413.68 MPa (60,000 psi) or 482.63 MPa (70,000 psi), when measured in accordance with ASTM D882. The central layer of the multilayer film of Example Embodiment 3 may have a thickness of 0.5 micrometers (pm or micrometers) to 60 pm. In other embodiments, the second layer may have a thickness of from 0.5 pm to 50 pm, from 0.5 pm to 25 pm, from 0.5 pm to 10 pm, from 0.5 pm to 5 pm, from 0.5 pm to 1.0 pm, from 1.0 pm to 5 0 pm, from 1.0 pm to 2 5 pm, from 1.0 pm to 10 pm, from 1.0 pm to 5 pm, from 5 pm to 50 pm, from 5 pm to 25 pm, from 5 pm to 10 pm, from 10 pm to 50 pm, from 10 pm to 25 pm or from 25 pm to 50 pm. The core layer of the multilayer films of Example Embodiment 3 may constitute 30% by weight to 80% by weight of the total weight of the multilayer film of Example Embodiment 3. In some embodiments, the core layer may constitute 30% by weight. % by weight to 60% by weight, from 30% by weight to 40% by weight, from 40% by weight to 80% by weight, from 40% by weight to 60% by weight or from 60% by weight to 80% by weight of the total weight of the multilayer film of Example Embodiment 3. In one or more embodiments, the core layer of Example Embodiment 3 may include 40% by weight to 100% by weight of the polyethylene composition, based on the total weight of the core layer. In some embodiments, the core layer may include from about 10 wt.% to about 100 wt.%, from about 10 wt.% to about 80 wt.%, from about 10 wt.% to about 60 % by weight, from about 10% by weight to about 40% by weight weight, from about 10% by weight to about 20% by weight, from about 20% by weight to about 100% by weight, from about 20% by weight to about 80% by weight, from about 20% by weight to about 60% by weight, from about 20% by weight to about 40% by weight, from about 40% by weight to about 100% by weight, from about 40% by weight to about 80% by weight, from about 40% by weight to about 60% by weight, from about 60% by weight to about 100% by weight, from about 60% by weight to about 80% by weight weight or from about 80% by weight to about 100% by weight of the filled poly composition, < depending on the total weight of the central layer. In embodiments, the core layer of Example Embodiment 3 may include a high-density polyethylene (HDPE). In one or more embodiments, the core layer may include up to 50% by weight of high-density polyethylene, based on the total weight of the core layer. In some embodiments, the core layer may include from about 0 wt.% to about 50 wt.%, from about 0 wt.% to about 40 wt.%, from about 0 wt.% to about 20 % by weight, from about 20% by weight to about 50% by weight, from about 20% by weight to about 40% by weight or from about 40% by weight to about 50% by weight of high-density polyethylene , depending on the total weight of the central layer. Optionally, in some embodiments, the core layer of Example Embodiment 3 may include a low density polyethylene (LDPE). In one or more embodiments, the core layer of Example Embodiment 3 may comprise less than 50% by weight of low-density polyethylene, based on the total weight of the core layer. In some embodiments, the core layer of Example Embodiment 3 may include from about 0% by weight to about 50% by weight, from about 0% by weight to about 40% by weight, from about 0% by weight to about 20% by weight, from about 20% by weight to about 50% by weight, from about 20% by weight to about 40% by weight or from about 40% by weight to about 50% by weight of low-density polyethylene, depending on the total weight of the central layer. The second layer, the third layer or both of the multilayer film of Example Embodiment 3 may have, in each case, a thickness of 0.5 micrometers (pm or micrometers) to 60 pm. In other embodiments, the second layer, the third layer or both of the multilayer film of Example Embodiment 1 may have a thickness of 0.5 to 50 pm, 0.5 pm to 25 pm, 0.5 pm to 10 pm, 0.5 pm to 5 pm, from 0.5 pm to 1.0 pm, from 1.0 pm to 50 pm, from 1.0 pm to 25 pm, from 1.0 pm to 10 pm, from 1.0 pm to 5 pm, from 5 pm to 50 pm, from 5 pm to 25 pm, from 5 pm to 10 pm, from 10 pm to 50 pm, from 10 pm to 25 pm or from 25 pm to 50 pm. The second layer, the third layer, or both of the multilayer film of Example Embodiment 3 may constitute 20% by weight to 70% by weight of the total weight of the multilayer film of Example Embodiment 3. In some embodiments, the second layer, the third layer or both of the multilayer film of Example Embodiment 1 may constitute from 20% by weight to 60% by weight, from 20% by weight to 40% by weight, from 40% by weight to 70% by weight, from 40% by weight to 60% by weight or from 60% by weight to 70% by weight of the total weight of the multilayer film of Example Embodiment 3. In one or more embodiments, the second layer, the third layer, or both of Example Embodiment 3 may include at least 40% by weight of the polyethylene composition described herein, based on the total weight of the respective layer. In some embodiments, the second layer, the third layer, or both of Example Embodiment 3 may ΜΛ / 1 / include from about 50% by weight to about 100% by weight, from about 50% by weight to about 80% by weight, from about 50% by weight to about 60% by weight, from about 60% by weight to about 100% by weight, from about 60% by weight to about 80% by weight or from about 80% by weight to about 100% by weight of the described polyethylene composition herein, based on the total weight of the respective layer. In one or more embodiments, the second layer, the third layer, or both of Example Embodiment 3 may include less than 50% by weight of high-density polyethylene, based on the total weight of the respective layer. In some embodiments, only one of the second layer or the third layer may include high-density polyethylene. In some embodiments, the second layer or the third layer may include from about 0% by weight to about 50%: by weight, from about 0% by weight to about 40% by weight, from about 0% by weight to about 20% by weight, from about 5 % by weight to about 50% by weight, from about 5% by weight to about 40% by weight, from about 5% by weight to about 20% by weight, from about 20% by weight to about from 50% by weight, from about 20% by weight to about 40% by weight or from about 40%; by weight to about 50% i by weight of high-density polyethylene, depending on the total weight of the ΜΛ / respective layer. In one or more embodiments, the second layer, the third layer, or both of Example Embodiment 3 may include less than 50% by weight of low density polyethylene, based on the total weight of the respective layer. In some embodiments, the second layer, the third layer, or both may include from about 5% by weight to about 50% by weight, from about 5% by weight to about 40% by weight, from about 5% by weight. by weight to about 20% by weight, from about 20% by weight to about 50% by weight, from about 20% by weight to about 40% by weight or from about 40% by weight to about 50% by weight of low-density polyethylene, based on the total weight of the respective layer. Methods for producing the films described herein Various methodologies are contemplated to produce multilayer films. In one or more embodiments, the multilayer film manufacturing process may include cast film extrusion or blown film extrusion. In some embodiments, the multilayer film manufacturing process may include forming a blown film bubble. In some embodiments, the blown film bubble may be a multilayer blown film bubble. Furthermore, according to this embodiment, the multilayer blown film bubble μλ / may include at least five layers (according to the first layer, the second layer, the third layer, the fourth layer and the fifth layer described herein) , and the at least five layers can adhere to each other. In some embodiments, each of the first layer and the fifth layer may include a linear low-density polyethylene, the second layer and the fourth layer may include a high-density polyethylene, and the third layer may include the polyethylene composition as shown. described earlier in this description. During blown film process embodiments, an extruded film may be formed (blown) from an extrusion die and pulled into a tower over a clamping point. The film may be wound on a core. Before the film is wound on the core, the ends of the film can be cut and folded with folding equipment. This makes the film layers difficult to separate, which can be important for mailing applications, generally, or heavy-duty mailing bag applications. In other embodiments, the blown film bubble may be formed through a blown film extrusion line having a length to diameter (L / D) ratio of 30 to 1. In some embodiments, the extrusion line may have a blow ratio of about 1 to about 5, about 1 to about 3, about 2 to about 5, or about 2 to about 3. In some embodiments, the extrusion line may use a matrix with internal bubble cooling. In some embodiments, the die spacing may be from about 1 millimeter (mm) to about 5 mm, from about 1 mm to about 3 mm, from about 2 mm to about 5 mm, or from about 2 mm. mm to about 3 mm. In some embodiments, the extrusion line may use a film thickness calibration scanner. In some embodiments, during the extrusion process, the thickness of the multilayer film can be maintained at about 15 pm to 115 pm. In other embodiments, the thickness of the multilayer film can be maintained at about 15 pm to 100 pm, 15 pm to 75 pm, 15 pm to 50 pm, 15 pm to 25 pm, 25 pm to 115 pm. , from 25 pm to 100 pm, from 25 pm to 75 pm, from 2 5 pm to 50 pm, from 5 0 pm to 115 pm, from 50 pm to 100 pm, from 50 pm to 75 pm, from 75 pm to 115 pm, from 7 5 pm to 100 pm or from 100 pm to 115 pm. In some embodiments, the multilayer blown film bubble formation step may occur at a temperature of 350 to 500°F (176.66°C to 260°C), or 375 to 475°C (190.55°C to 246.11°C). F). The output speed can be from about 5 Ib / h / in to about 25 Ib / h / in, from about 5 Ib / h / in to about 20 Ib / h / in, from μλ / about 5 lb / h / in to about 15 > Ib / h / in, from about 5 lb / h / in to about 10 lb / h / in, from about 10 lb / h / in to about 25 Ib / h / in, from about 10 lb / h / in to about 20 lb / h / in, from about 10 lb / h / in to about 15 Ib / h / in, from about 15 Ib / h / in to about 25 lb / h / in, from about 15 lb / h / in to about 20 lb / h / in or from around 20 Ib / h / in to around 25 Ib / h / in. Articles Embodiments of the present description also relate to articles, such as containers, formed with the multilayer films of the present description. Such packages can be formed with any of the multilayer films of the present invention described herein. The multilayer films of the present disclosure are particularly useful in articles where good tear resistance and good dart resistance are desired. Examples of such items may include flexible packaging, bags, base bags, and pre-made containers or bags. In some embodiments, the multilayer films or laminates of the present disclosure may be used for heavy duty mailing bags. In some embodiments, one or more of the above heavy duty mailing bags may be used in mailing applications. A mid-level skilled person would be familiar with various methods for producing the article embodiments of the multilayer films described herein. Polyethylene compositions (A) Composition and characterization of polyethylene In one or more embodiments, the polyethylene composition may have a density of 0.924 g / cm3 to 0.936 g / cm3. For example, embodiments of the polyethylene compositions described herein may have a density of 0.924 g / cm3 to 0.931 g / cm3, 0.924 g / cm3 to 0.928 g / cm3, 0.927 g / cm3 to 0.931 g / cm3 or 0.929 g / cm3a 0.933 g / cm3. According to additional embodiments, the polyethylene composition may have a density of 0.924 to 0.928, 0.928 g / cm3 to 0.932 g / cm3, 0.932 g / cm3 to 0.936 g / cm3, or any combination of these ranges. In one or more embodiments, the polyethylene composition may have a melt index (I2) of 0.25 g / 10 minutes to 2.0 g / 10 minutes, such as 0.5 g / 10 minutes to 1.2 g / 10 minutes. For example, in one or more embodiments, the polyethylene composition may have a melt index (I2) of 0.25 g / 10 minutes to 0.5 g / 10 minutes, of 0.5 g / 10 minutes to 0.7 g / 10 minutes, of 0.7 g / 10 minutes to 0.9 g / 10 minutes, from 0.59 g / 10 minutes to 1.1 g / 10 minutes, from 1.1 g / 10 minutes to 1.3 g / 10 minutes, from 1.3 g / 10 minutes to 1.5 g / 10 minutes, from 1.5 g / 10 minutes to 1.7 g / 10 minutes, from 1.7 g / 10 minutes to 2.0 g / 10 minutes or any combination of these intervals. According to additional embodiments, the polyethylene composition may have a melt index (I2) of 0.65 g / 10 minutes to 1.05 g / 10 minutes. According to embodiments, the polyethylene compositions may have a molecular weight distribution, expressed as the ratio of weight average molecular weight to number average molecular weight (Mw / Mn), in the range of 2.5 to 8.0. For example, the polyethylene composition may have a molecular weight distribution of 2.5 to 3.0, 3.0 to 3.5, 3.5 to 4.0, 4.0 to 4.5, 4.5 to 5.0, 5.0 to 5.5, 5.5 to 6.0, 6.0 to 6.5, 6.5 to 7.0, 7.0 to 7.5, 7.5 to 8.0 or any combination of these ranges. In additional embodiments, the polyethylene composition may have a molecular weight distribution of 3.0 to 5.0. As described herein, molecular weight distribution can be calculated according to gel permeation chromatography (GPC) techniques as described herein. According to one or more additional embodiments, the polyethylene composition may have a zero shear viscosity ratio of less than 3.0. For example, the polyethylene composition may have a zero shear viscosity ratio of less than 2.9, less than 2.8, less than 2.7, less than 2.6, less than 2.5, less than 2.4, less than 2.3, less than 2.2, less of 2.1, less than 2.0, less than 1.9, less than 1.8, less than 1.7, less than 1.6, less than 1.5, less than 1.4, less than 1.3, less than 1.2 or even less than 1.1. In one or more embodiments, the polyethylene composition may have a zero shear viscosity ratio of at least 1.0. As described herein, a polyethylene fraction refers to a portion of the total composition of the polyethylene composition. Embodiments described herein include at least a first polyethylene fraction and a second polyethylene fraction. The various fractions included in the polyethylene composition can be quantified by their temperature range in an elution profile through the enhanced comonomer composition distribution (iCCD) analysis method. Unless specified, any elution profile mentioned herein is the elution profile observed via iCCD. Examples of such fractions will be better understood in view of the examples given below. In general, the first fraction may include a single peak in the temperature range of the first fraction, and the second fraction may include a single peak in the temperature range of the second fraction. The polyethylene compositions described herein can be called multimodal, meaning that they include at least two peaks in their elution profile. Some modalities may be bimodal, meaning that two main peaks are present. Referring to the described iCCD distribution, Figure 1 schematically represents a sample of iCCD distribution 100 along with the cumulative weight fraction curve 200. Figure 1 generally depicts various characteristics of the iCCD profiles of the polyethylene compositions. described herein, such as the first fraction, the second fraction, average peak widths, etc., which are discussed in detail herein. As such, Figure 1 may be used as a reference with respect to the descriptions related to the iCCD profile provided herein. Specifically, the first fraction 102 and the second fraction 106 are represented. The first fraction 102 has a peak 104 and the second fraction 106 has a peak 108. Each fraction has a mean peak width 110 and 112. It should be understood that the profile of Figure 1 is not derived from experimentation or observation, but is provided for informational purposes to describe particular characteristics of an iCCD elution profile. In one or more embodiments, the first polyethylene fraction may have a single peak in a temperature range of 45°C to 87°C in an elution profile through iCCD. As used herein, a single peak refers to an iCCD where a particular fraction only includes a single peak. That is, in some embodiments, the iCCD of the first and second polyethylene fractions includes only an upward slanted region followed by a downward slanted region to form the single peak. In one or more embodiments, the single peak of the first polyethylene fraction may be in a temperature range of 60°C to 85°C, such as 70°C to 85°C. Without being limited to theory, it is believed that at least in some embodiments of the polyethylene composition described herein, where a dual reactor design is used for polymerization, a combination of higher density crystalline domain and amorphous domain may exist. lower density. Impact resistance is predominantly controlled by the amorphous region or bond concentrations connecting adjacent sheets. It is estimated that the relative concentration of linker chain is relatively large when the density is less than 0.910 g / cm3. The peak of the first polymer fraction in the compositions described herein may be in the temperature range of 60°C to 85°C, which may provide a higher concentration of linker chain for functional benefits, such as toughness. improved. It should be understood that a peak in the first or second polyethylene fraction may not be formed by a local minimum in the respective polyethylene fraction at a defined temperature limit. That is, the peak must be a peak in the context of the entire spectrum, not a peak formed by the threshold temperature of a polyethylene fraction. For example, if a single peak followed by a single valley were present in a polyethylene fraction (an upward slope followed by a downward slope followed by an upward slope), only a single peak would be present in the polyethylene fraction. In one or more embodiments, the second polyethylene fraction may have a single peak in the temperature range of 95°C to 120°C in the elution profile through iCCD. The temperature range of the second polyethylene fraction of 95°C to 120°C may be desirable because the high density, low molecular weight component of 95°C to 120°C may allow the polyethylene to achieve a higher total density. while maintaining a lower density fraction as described through the relationship of these two fractions. In one or more embodiments, the width of the single peak of the second polyethylene fraction at a 50 percent peak height may be less than 5.0°C, less than 4°C, or even less than 3°C. In general, temperature intervals less than 50 percent of the maximum height correspond to a more pronounced peak. Without being limited to any particular theory, a steeper or narrower peak is believed to be a feature caused by the molecular catalyst and indicates minimal incorporation of comonomer into the higher density fraction, allowing for higher density partitioning between the two. fractions. In one or more embodiments, the polyethylene composition may have a local minimum in an elution profile through iCCD in a temperature range of 80°C to 90°C. This local minimum can be found between the peaks of the first polyethylene fraction and the second polyethylene fraction. In the embodiments described herein, the area of ​​the first polyethylene fraction is the area in the elution profile between 45°C and 87°C, below the single peak of the first polyethylene fraction. Similarly, the area of ​​the second polyethylene fraction is the area in the elution profile between 95°C and 120°C, below the single peak of the second polyethylene fraction. The area of ​​the first polyethylene fraction and the second polyethylene fraction, respectively, can generally correspond to the total relative mass of each polymer fraction in the polyethylene composition. According to one or more embodiments, the difference between the single peak of the second polyethylene fraction and the single peak of the first polyethylene fraction may be at least 10°C. For example, the difference between the single peak of the second polyethylene fraction and the single peak of the first polyethylene fraction may be at least 12°C, 14°C, 16°C, 18°C ​​or even at least 20°C. In general, a polyethylene fraction area in an iCCD profile can be determined by integrating the iCCD profile between the specified start and end temperatures. In one or more embodiments, the area of ​​the first polyethylene fraction may comprise at least 40% of the total area of ​​the elution profile (e.g., at least 42%, at least 44%, at least 46%, at least 48% , at least 50%, at least 52% or even at least 54% of the total area of ​​the elution profile). For example, the area of ​​the first polyethylene fraction may comprise 40% to 65% of the total area of ​​the elution profile, such as 42% to 58%, 43% to 45%, 45% to 47%, from 53% to 55% or from 55% to 57%. According to one or more embodiments, the area of ​​the second polyethylene fraction may comprise at least 25% of the total area of ​​the elution profile (for example, at least 30%, at least 35% or even at least 40% of the area total elution profile). For example, the area of ​​the first polyethylene fraction may comprise 20% to 50%, 27% to 31% or 41% to 48% of the total area of ​​the elution profile. ΜΛ / 1 / According to some embodiments, a ratio of the area of ​​the first polyethylene fraction to the area of ​​the second polyethylene fraction may be from 0.75 to 2.5 (such as from 0.75 to 1.0, from 1.0 to 1.25, from 1.25 to 1.5, from 1.5 to 1.75, from 1.75 to 2.0, from 2.0 to 2.25, from 2.25 to 2.5 or any combination of these ranges). In one or more embodiments, the polyethylene composition is formed from the polymerization of ethylene and a comonomer such as a C3-C12 alkene. Contemplated comonomers include C6-C9 alkenes, such as 1-octene and 1-hexene. In one or more embodiments, the comonomer is 1octene. In one or more embodiments, the difference between the single peak of the second polyethylene fraction and the single peak of the first polyethylene fraction is at least 10°C, at least 12.5°C, at least 15°C, at least 17.5°C or even at least 20°C. In one or more embodiments, the first polyethylene fraction may have a melt index (I2) of 0.01 to 0.18 g / 10 minutes. For example, according to one or more embodiments, the first polyethylene fraction may have a melt index (I2) of 0.01 g / 10 minutes to 0.03 g / 10 minutes, of 0.03 g / 10 minutes to 0.05 g / 10 minutes , from 0.05 g / 10 minutes to 0.07 g / 10 minutes, from 0.07 g / 10 minutes to 0.09 g / 10 minutes, from 0.09 g / 10 minutes to 0.11 g / 10 minutes, from 0.11 g / 10 minutes to 0.13 g / 10 minutes, 0.13 g / 10 minutes to 0.15 g / 10 minutes, 0.15 g / 10 minutes to 0.18 g / 10 minutes or any combination of these ranges. In one or more embodiments, the second polyethylene fraction may have a melt index (I2) of 1 to 10,000 g / 10 minutes. For example, according to one or more embodiments, the second polyethylene fraction may have a melt index (I2) of 10 g / 10 minutes to 1,000 g / 10 minutes, of 20 g / 10 minutes to 800 g / 10 minutes. 10 minutes, from 1 g / 10 minutes to 100 g / 10 minutes, from 100 g / 10 minutes to 1,000 g / 10 minutes, from 1,000 g / 10 minutes to 10,000 g / 10 minutes or any combination of these intervals. In one or more embodiments, the weight average molecular weight of the second polyethylene fraction may be less than or equal to 120,000 g / mol, such as from 20,000 g / mol to 120,000 g / mol or from 40,000 g / mol to 65,000 g / mol. In further embodiments, the weight average molecular weight of the second polyethylene fraction may be from 20,000 g / mol to 40,000 g / mol, from 40,000 g / mol to 60,000 g / mol, from 60,000 g / mol to 80,000 g / mol. , from 80,000 g / mol to 100,000 g / mol, from 100,000 g / mol to 120,000 g / mol or any combination of these ranges. The molecular weight of the polyethylene fractions can be calculated based on the GPC results, as described below. The polyethylene compositions described herein can have relatively good dart resistance when formed into monolayer blown films. According to one or more embodiments, a monolayer blown film formed from the polyethylene composition and having a thickness of two mils has a dart drop impact of at least 1000 grams when measured in accordance with ASTM D1709, method A. In additional embodiments, a monolayer blown film formed from the polyethylene composition and having a thickness of two mils has a dart drop impact of at least 1100 grams, at least 1200 grams, at least 1300 grams, at at least 1400 grams, at least 1500 grams, at least 1600 grams, at least 1700 grams, at least 1800 grams, at least 1900 grams or even at least 2000 grams when measured in accordance with ASTM D1709, Method A. According to additional embodiments, the polyethylene compositions may have a Dow rheology index less than or equal to 5, such as less than or equal to 4, less than or equal to 3, less than or equal to 2 or even less than or equal to 1 . In one or more embodiments, the polyethylene compositions described herein may further comprise additional components such as one or more additives. Such additives include, but are not limited to, antistatic agents, color enhancers, dyes, lubricants, fillers, such as TIO2 or CaCOa, opacifying agents, nucleating agents, processing aids, pigments, primary antioxidants, secondary antioxidants, UV stabilizers, anti-blocking agents, slip agents, tackifiers, flame retardants, antimicrobial agents, odor reducing agents, antifungal agents and combinations thereof. The polyethylene compositions may contain from about 0.1 to about 10 percent by combined weight of such additives, based on the weight of the polyethylene composition that includes such additives. (B) Polymerization Any conventional polymerization processes can be employed to produce the polyethylene compositions described herein. Such conventional polymerization processes include, but are not limited to, suspension polymerization processes, solution polymerization process, with one or more conventional reactors, for example, loop reactors, isothermal reactors, stirred tank reactors, parallel batch reactors, in series and / or any combination of these. The polyethylene composition may, for example, be produced by a solution phase polymerization process using one or more loop reactors, isothermal reactors, and combinations thereof. In general, the solution phase polymerization process can occur in one or more well-mixed reactors, such as one or more isothermal loop reactors or one or more adiabatic reactors at a temperature in the range of 115 to 250°C (e.g. e.g., 115 to 210°C), and at pressures in the range of 2.06 to 6.89 MPa (300 to 1000 psi (e.g., 400 to 800 psi)). In some embodiments, in a double reactor, the temperature in the first reactor is in the range of 115 to 190 ° C (for example, 160 to 180 ° C), and the temperature of the second reactor is in the range of 150 to 250°C (e.g. 180 to 220°C). In other embodiments, in a single reactor, the temperature in the reactor is in the range of 115 to 250°C (e.g., 115 to 225°C). The residence time in a solution phase polymerization process may be in the range of 2 to 30 minutes (e.g., 5 to 25 minutes). Ethylene, solvent, hydrogen, one or more catalyst systems, optionally one or more cocatalysts and optionally one or more comonomers are continuously introduced into one or more reactors. Illustrative solvents include, but are not limited to, isoparaffins. For example, such solvents are commercially available under the name ISOPAR E from ExxonMobil Chemical Co., Houston, Texas. The resulting mixture of the polyethylene composition and the solvent is then removed from the reactor, and the polyethylene composition is isolated. The solvent is usually recovered by a solvent recovery unit, for example, heat exchangers and liquid-vapor separator vessel, and then recycled back to the polymerization system. In some embodiments, the polyethylene composition can be produced by solution polymerization in a dual reactor system, for example, a dual loop reactor system, wherein the ethylene is polymerized in the presence of one or more catalyst systems. In some embodiments, only the ethylene is polymerized. Additionally, one or more cocatalysts may be present. In another embodiment, the polyethylene composition may be produced by solution polymerization in a single reactor system, for example, a single loop reactor system, wherein the ethylene is polymerized in the presence of two catalyst systems. In some embodiments, only the ethylene is polymerized. (C) Catalyst systems Specific embodiments of catalyst systems will now be described that may, in one or more embodiments, be used to produce the polyethylene compositions described herein. It should be understood that the catalyst systems of this description may be described in different ways and should not be construed to be limited to the specific embodiments presented in this description. Rather, arrangements are provided for this description to be complete and exhaustive, and to fully convey the scope of the subject matter to those skilled in the art. The term "independently selected" is used herein to indicate that R groups, such as R1, R2, R3, R4 and R5, may be identical or different (for example, R1, R2, R3, R4 and R5 may all be substituted alkyl or R1 and R2 may be substituted alkyls and R3 may be an aryl, etc.). Use of the singular includes use of the plural and vice versa (for example, a hexane solvent includes hexanes). An R group with a name will generally have the structure that is recognized in the art as corresponding to R groups having that name. These definitions are intended to complement and illustrate, but not exclude, definitions known to those skilled in the art. The term procatalyst refers to a compound that has catalytic activity when combined with an activator. The term activator refers to a compound that chemically reacts with a procatalyst in such a way as to convert the procatalyst into a catalytically active catalyst. As used herein, the terms cocatalyst and activator are interchangeable terms. When used to describe certain chemical groups that contain carbon atoms, an expression in parentheses that has the form (Cx—Cy) means that the unsubstituted form of the chemical group has x carbon atoms to y carbon atoms, x and y inclusive. For example, a (CiC40)alkyl is an alkyl group that has 1 to 40 carbon atoms in its unsubstituted form. In some general embodiments and structures, certain chemical groups may be substituted with one or more substituents such as Rs. A substituted Rs version of a chemical group defined with the expression in parentheses (Cx-Cy) may contain more than y carbon atoms depending on the identity of any Rs groups. For example, a substituted (C1-C40)alkyl with exactly one Rs group, where Rss phenyl (-CgHs) can contain 7 to 46 carbon atoms. Therefore, in general, when a chemical group defined with the expression in parentheses (Cx-Cy) is substituted with one or more R substituents containing carbon atoms, the minimum and maximum total number of carbon atoms of the chemical group is determined by adding to both x and y the combined sum of the number of carbon atoms of all substituents Rs that contain carbon atoms. The term substitution means that at least one hydrogen atom (-H) attached to a carbon atom or heteroatom of a corresponding unsubstituted compound or functional group is replaced with a substituent (e.g., Rs). The term persubstitution means that each hydrogen atom (H) attached to a carbon atom or heteroatom of a corresponding unsubstituted compound or functional group is replaced with a substituent (e.g., Rs). The term polysubstitution means that at least two, but fewer than all, hydrogen atoms bonded to carbon atoms or heteroatoms of a corresponding unsubstituted compound or functional group are replaced with a substituent. The term -H means a hydrogen or a hydrogen radical that is covalently bonded to another atom. Hydrogen and -H are interchangeable, and, unless clearly specified otherwise, mean the same thing. The term (C1-C40)hydrocarbyl means a hydrocarbon radical of 1 to 40 carbon atoms and the term (CiC40)hydrocarbylene means a hydrocarbon diradical of 1 to 40 carbon atoms, where each hydrocarbon radical and each hydrocarbon diradical is aromatic or non-aromatic, saturated or unsaturated, straight chain or branched chain, cyclic (including monocyclic and polycyclic, fused and unfused polycyclic, including bicyclic; 3 carbon atoms or more) or acyclic and is unsubstituted or substituted with one or more Rs. In this description, a (C1-C40)hydrocarbyl may be a (C1-C40) alkyl, (C3-C40) cycloalkyl, (C3-C20) cycloalkyl-(CiC20) alkylene, (C&-C4ü) aryl or (C&- C2ü) aryl- (C1-C2Ü) substituted or unsubstituted alkylene. In some embodiments, each of the above-mentioned (C1-C40) has a maximum of 20 carbon atoms (i.e., (C1-C20) hydrocarbyl) and, in other embodiments, a maximum of 12 carbon atoms. The terms (C1-C40) alkyl and (Ci-Cis) alkyl mean a saturated linear or branched hydrocarbon radical of 1 to 40 carbon atoms or 1 to 18 carbon atoms, respectively, which is unsubstituted or which is substituted with one or more Rs. Examples of (C1-C40) unsubstituted alkyl are (C1-C20) unsubstituted alkyl; (CiC10) unsubstituted alkyl; (C1-C5) unsubstituted alkyl; methyl; ethyl; 1-propyl; 2-propyl; 1-butyl; 2-butyl; 2methylpropyl; 1,1-dimethylethyl; 1-pentyl; 1-hexyl; 1heptyl; 1-nonyl; and 1-decile. Examples of (C1-C40) substituted alkyl are (C1-C20) substituted alkyl, (C1-C10) substituted alkyl, trifluoromethyl, and [C45]alkyl. The term [C45]alkyl (with brackets) means that there are a maximum of 45 carbon atoms in the radical, which includes substituents, and is, for example, a (C27-C40) alkyl substituted with an Rs, which is a ( C1-C5) alkyl, respectively. Each (C1-C5) alkyl can be methyl, trifluoromethyl, ethyl, 1-propyl, 1-methylethyl, or 1,1-dimethylethyl. The term (C6-C40)aryl means an unsubstituted or substituted (by one or more Rs) mono, bi or tricyclic aromatic hydrocarbon radical of 6 to 40 carbon atoms, of which at least 6 to 14 of the carbon atoms carbon are aromatic ring carbon atoms, and the mono, bi or tricyclic radical comprises 1, 2 or 3 rings, respectively; wherein the 1 ring is aromatic and the 2 or 3 rings are independently fused or unfused and at least one of the 2 or 3 rings is aromatic. Examples of (Ce—C40) unsubstituted aryl are (C6-C20) unsubstituted aryl, (CeCis) unsubstituted aryl; 2-(C1-C5)alkylphenyl; 2,4-bis(CiC5)alkylphenyl; phenyl; fluorenyl; tetrahydrofluorenyl; indacenyl; hexahydroindacenyl; indenyl; dihydroindenyl; naphthyl; tetrahydronaphthyl; and phenanthrene. Examples of (C6-C40) substituted aryl are (C1-C20) aryl; (Ce-Cis) substituted aryl; 2,4-bis[(C20)alkyl]-phenyl; polyfluorophenyl; pentafluorophenyl; and fluorenyl-9-one-l-yl. The term (C3-C40)cycloalkyl means a saturated cyclic hydrocarbon radical of 3 to 40 carbon atoms that is unsubstituted or that is substituted with one or more Rs. Other cycloalkyl groups (e.g., (Cx-Cy) cycloalkyl) are defined in an analogous manner as having x to y carbon atoms and being unsubstituted or substituted with one or more Rs. Examples of (C3C40)unsubstituted cycloalkyl are (C3-C20)unsubstituted cycloalkyl, (C3-C10)unsubstituted cycloalkyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl and cyclodecyl. Examples of (C3C40)substituted cycloalkyl are (C3-C20)substituted cycloalkyl, (C3-C10)substituted cycloalkyl, cyclopentanon-2yl and 1-fluorocyclohexyl. Examples of (C1-C40) hydrocarbylene include (CgC40) substituted or unsubstituted arylene, (C3-C40) cycloalkylene and (Ci-C40) alkylene (e.g., (Ci-C20) alkylene). In some embodiments, the diradicals are on the same carbon atom (e.g., -CH2-) or on adjacent carbon atoms (i.e., 1,2-diradicals), or are separated from each other by one, two or more of two intermediate carbon atoms (e.g., respective 1,3-diradicals, 1,4-diradicals, etc.). Some diradicals include α, ωdirradical. The a,ω-dirradical is a diradical that has a maximum carbon backbone spacing between the radical carbons. Some examples of a,ω-diradicals (C2C20) alkylene include ethane-1,2-diyl (i.e. -CH2CH2-), propan-1,3-diyl (i.e. -CH2CH2CH2-), 2-methylpropan-l , 3diílo (i.e. -CH2CH (CH3) CH2-) . Some examples of α,ωdiradicals (Cg-Cgo)arylene include phenyl-1,4-diyl, naphthalene-2,6-diyl or naphthalene-3,7-diyl. The term (C1-C40)alkylene means a saturated straight-chain or branched-chain diradical (i.e., the μλ / radicals are not on ring atoms) of 1 to 40 carbon atoms that is unsubstituted or that is substituted with one or more Rs. Examples of (C1-C50) unsubstituted alkylene are (C1-C20) unsubstituted alkylene, including —CH2CH2—, — (CH2)3-, — (CH2)4-, - (CH2)5“, -(CH2 )6—, -(CH2)7—, -(CfDg-, —CH2C*HCH3 and -(CH2)4C*(H) (CH3) unsubstituted, where C* indicates a carbon atom from which removes a hydrogen atom to form a secondary or tertiary alkyl radical. Examples of (C1-C50) substituted alkylene are (C1-C20) substituted alkylene, -CF2-, -C(O)-, and - (CH2)14C(CH3)2(CH2)5- (i.e. a normal 1,20-eicosylene substituted with 6,6-dimethyl). Since, as mentioned above, two Rs can be taken together to form a (Ci-Cie) alkylene, examples of (C1-C50) substituted alkylene also include 1,2-bis(methylene)cyclopentane, 1,2-bis(methylene) cyclohexane, 2,3-bis(methylene)-7,7-dimethylbicyclo[2.2.1]heptane and 2,3-bis(methylene)bicyclo[2.2.2]octane. The term (C3-C40) cycloalkylene means a cyclic diradical (i.e., the radicals are on ring atoms) of 3 to 40 carbon atoms that is unsubstituted or that is substituted with one or more Rs. The term heteroatom refers to an atom other than hydrogen or carbon. Examples of heteroatoms include O, S, S(O), S(O)2, Yes(Rc)2, P (Rp), N(RN), -N=C(Rc)2, -Ge(Rc) 2-, or -Si (Rc) where each Rc, each RNand each Rpes (CiCis) unsubstituted hydrocarbyl or -H. The term heterohydrocarbon refers to a molecule or molecular structure in which one or more carbon atoms are replaced with a heteroatom. The term (C1-C40)heterohydrocarbyl means a heterohydrocarbon radical of 1 to 40 carbon atoms, and the term (C1-C40)heterohydrocarbylene means a heterohydrocarbon diradical of 1 to 40 carbon atoms, and each heterohydrocarbon has one or more heteroatoms. The heterohydrocarbyl radical is on one carbon atom or one heteroatom, and the heterohydrocarbyl diradicals can be on: (1) one or two carbon atoms, (2) one or two heteroatoms, or (3) one carbon atom and a heteroatom. Each (C1-C50) heterohydrocarbyl and (C1-C50) heterohydrocarbylene may be unsubstituted or substituted (with one or more Rs), may be aromatic or non-aromatic, saturated or unsaturated, straight chain or branched chain, cyclic (including mono and polycyclic, fused and non-fused polycyclic) or acyclic. The (C1-C40) heterohydrocarbyl may be (CiC40) heteroalkyl, (C1-C40) hydrocarbyl-O-, (CiC40) hydrocarbyl-S-, (C1-C40) hydrocarbyl-S (O)-, (CiC40) hydrocarbyl- S (O) 2-, (C1-C40) hydrocarbyl-Si (Rc) 2-, (CiC40) hydrocarbyl-N (RN)-, (C1-C40) hydrocarbyl-P (Rp)-, (C294 C4o) heterocycloalkyl, (C2-C19) heterocycloalkyl- (CiC20) alkylene, (C3-C2Ü)-cycloalkyl- (C1-C19) heteroalkylene, (C2-C19) heterocycloalkyl- (C1-C20) heteroalkylene, (CiC40) heteroaryl, (C1-C19)heteroaryl-(C1-C20)alkylene, (CeC20)aryl-(C1-C19)heteroalkylene, or substituted or unsubstituted (C1-C19)heteroaryl-(CiC20)heteroalkylene. The term (C4-C40)heteroaryl means an unsubstituted or substituted mono, bi or tricyclic heteroaromatic hydrocarbon radical (with one or more Rs) of 4 to 40 carbon atoms in total and 1 to 10 heteroatoms, and the mono radical, bi- or tricyclic comprises 1, 2 or 3 rings, respectively, wherein the 2 or 3 rings are independently fused or unfused and where at least one of the 2 or 3 rings is heteroaromatic. Other heteroaryl groups (e.g., (Cx-Cy)heteroaryl in general, such as (C4-C12) heteroaryl) are defined in an analogous manner as having x to y carbon atoms (such as 4 to 12 carbon atoms). and as they are not substituted or are substituted with one or more than one Rs. The monocyclic heteroaromatic hydrocarbon radical is a 5-membered or 6-membered ring. The 5-membered ring has 5 minus h carbon atoms, where h is the number of heteroatoms and can be 1, 2, or 3; and each heteroatom can be O, S, N or P. Examples of 5-membered ring heteroaromatic hydrocarbon radical are pyrrol-l-yl; pyrrole-2-yl; furan-3-yl; thiophen-2-yl; pyrazol-l-yl; isoxazol-2-yl; isothiazol-5-yl; imidazole-2-yl; oxazol-4-yl; thiazol-2-yl; 1,2,4-triazol-1yl; 1,3,4-oxadiazol-2-yl; 1,3,4-thiadiazol-2-yl; tetrazol1-yl; tetrazol-2-yl; and tetrazol-5-yl. The 6-membered ring has 6 minus h carbon atoms, where h is the number of heteroatoms and can be 1 or 2 and the heteroatoms can be N or P. Examples of 6-membered ring heteroaromatic hydrocarbon radical are pyridine- 2-yl; pyrimidin-2-yl; and pyrazin-2-yl. The bicyclic heteroaromatic hydrocarbon radical may be a fused 5,6 or 6,6 ring system. Examples of fused 5,6-ring system bicyclic heteroaromatic hydrocarbon radical are indole-l-yl; and benzimidazol-l-yl. Examples of fused 6,6-ring system bicyclic heteroaromatic hydrocarbon radical are quinolin-2-yl; and isoquinolin-1yl. The tricyclic heteroaromatic hydrocarbon radical may be a 5,6,5 system; 5,6,6; 6,5,6; or 6,6,6 rings fused. An example of the fused 5,6,5-ring system is 1,7-dihydropyrrolo[3,2-f]indol-l-yl. An example of the fused 5,6,6 ring system is IH-benzo[f]indol-l-yl. An example of the fused 6,5,6 ring system is 9Hcarbazol-9-yl. An example of the fused 6,5,6 ring system is 9H-carbazole-9-yl. An example of the fused 6,6,6 ring system is acridin-9-yl. The heteroalkyl mentioned above can be ΜΛ / saturated straight-chain or branched-chain radicals containing (C1-C50) carbon atoms, or fewer carbon atoms and one or more of the heteroatoms. Likewise, the heteroalkylene can be saturated straight-chain or branched diradicals containing 1 to 50 carbon atoms and one or more than one heteroatom. Heteroatoms, as defined above, may include Si(Rc)3, Ge(Rc)3, Si(Rc)2, Ge(Rc)2, P(Rp)2, P(Rp), N(Rn)2 , N(RN), N, O, ORC, S, SRC, S(O), and S(O)2, wherein each of the heteroalkyl and heteroalkylene groups is unsubstituted or substituted with one or more Rs. Examples of (C2-C4o)unsubstituted heterocycloalkyl are (C2-C2o) unsubstituted heterocycloalkyl, (C2C10) unsubstituted heterocycloalkyl, aziridin-l-yl, oxetan2-yl, tetrahydrofuran-3-yl, pyrrolidin-l-yl, tetrahydrothiophen-S, S-dioxide-2-yl, morpholin-4-yl, 1,4dioxan-2-yl, hexahydroazepin-4-yl, 3-oxa-cyclooctyl, 5thio-cyclononyl and 2-aza-cyclodecyl. The term halogen atom or halogen means the radical of a fluorine atom (F), a chlorine atom (Cl), a bromine atom (Br) or an iodine atom (I). The term halide means the anionic form of the halogen atom: fluoride (F-), chloride (C1-), bromide (Br-) or iodide (I-). The term saturated means that it lacks carbon-carbon double bonds, carbon-carbon triple bonds, and ΜΛ / 1 / (in groups containing heteroatoms) carbon-nitrogen, carbon-phosphorus and carbon-silicon double bonds. When a saturated chemical group is substituted with one or more Rs substituents, one or more double and / or triple bonds may or may not optionally be present on the Rs substituents. The term unsaturated means containing one or more carbon-carbon double bonds, carbon-carbon triple bonds, and (in groups containing heteroatoms) carbon-nitrogen, carbon-phosphorus, and carbon-silicon double bonds, not including any such double bonds that they may be present on Rs substituents, if any, or on (hetero)aromatic rings, if any. According to some embodiments, a catalyst system for producing a polyethylene composition includes a metal-ligand complex according to Formula (I): In Formula (I), M is a metal selected from titanium, zirconium, or hafnium, wherein the metal is in a formal oxidation state of +2, +3 or +4; n is 0, 1, or 2; when n is 1, X is a monodentate ligand or a bidentate ligand; when n is 2, each X is a monodentate ligand and is the same or different; the metal-ligand complex is generally charge neutral; each Z is selected independently of -O-, -S-, —N (RN) —, or -P(RP)-; L is (Ci-Cío) hydrocarbylene or (C1-C40) heterohydrocarbylene, wherein the (Ci—C40) hydrocarbylene has a portion comprising a linker backbone of 1 carbon atom to 10 carbon atoms that links the two groups Z in Formula (I) (to which L is attached) or the (C1-C40) heterohydrocarbylene has a moiety comprising a linker backbone of 1 atom to 10 atoms that links the two Z groups in Formula (I) , wherein each of the 1 to 10 atoms of the 1- to 10-atom linker backbone of the (C1-C40)heterohydrocarbylene is independently a carbon atom or heteroatom, wherein each heteroatom is independently O, S, S (0), S(O)2, Si(Rc)2, Ge(Rc)2, P(Rc), or N (Rc), where each R is independently (C1-C30) hydrocarbyl or (C1-C30) heterohydrocarbyl; R1 and R8 are independently selected from the group consisting of -H, (C1-C40) hydrocarbyl, (C1-C40) heterohydrocarbyl, -Si (Rc) 3, -Ge (Rc) 3, -P(RP)2, -N( Rn)2, —0Rc, -SRc, -NO2, -CN, -CF3, RcS(O)-, RCS (O) 2-, (Rc)2C=N-, RcC(O)O-, RcOC(O )-, RcC(O)N(RN)-, ΜΛ / 1 / (Rn)2NC(O)-, halogen, and radicals having Formula (II), Formula (III) or Formula (IV): In Formulas (II), (III) and (IV), each of R31~35, R41-48op5i-59 is independently selected from (CiC40) hydrocarbyl, (C1-C40) heterohydrocarbyl, -Si (Rc) 3, -Ge (Rc) 3, -P(Rp)2, -N(Rn)2, -N=CHRc, —ORc, -SRc, -NO2, -CN, -CF3, RCS (O)-, RCS(O)2-, (Rc)2C=N-, RcC(O)O-, RcOC(O)-, RcC (O) N (RN)-, (Rn)2NC(O )-, halogen, or -H, where at least one of R1 or R8 is a radical having Formula (II), Formula (III) or Formula (IV). In Formula (I), each of R2~4, R5~7 and R9~16 is independently selected from (C1-C40)hydrocarbyl, (CiC40) heterohydrocarbyl, -Si (Rc) 3, -Ge (Rc) 3, -P (RP)2, -N(RN)2, -—N=CHRC, - ORC, -SRC, -NO2, -CN, -CF3, RCS(O)-, RCS(O)2-, (Rc)2C =N-, RcC(O)O-, RcOC(O)-, RcC (O) N (RN)-, (Rc)2NC(O)-, halogen, and -H. In some embodiments, the polyethylene composition is formed with a first catalyst according to Formula (I) in a first reactor and with a different catalyst according to Formula (I) in a second reactor. In an example embodiment where a double loop reactor is used, the procatalyst used in the first loop is 100 zirconium, [[2,2'''-[[bis[1-methylethyl)germilen]bis(methyleneoxykO)]bis[3'',5,5''-tris(1,1-dimethylethyl)-5' -octyl[l,l':3', 1' 'terphenyl]-2'-olate-κθ]](2-)]dimethyl-, which has the chemical formula Cs6Hi28F2GeO4Zr and the following structure (V): In such an embodiment, the procatalyst used in the second loop is zirconium, [[2,2' ' ' -[1,3-propandiylbis (oxykO)]bis[3-[2,7-bis(1,1-dimethylethyl )-9H-carbazol-9-yl]]-5'(dimethyloctylsilyl)-3'-methi1-5-(1,1,3,3 tetramethylbutyl)[1,1]-biphenyl]-2-olate-KO] ](2-)]dimethyl, which has the chemical formula Ci07Hi54N2O4SI2Zr and the following structure (VI): (SAW) 101 μλ / (D) Cocatalyst component The catalyst system comprising a metal ligand complex of Formula (I) can be made catalytically active by any technique known in the art to activate metal-based catalysts of deffin polymerization reactions. For example, the system comprising a metal-ligand complex of Formula (I) can be made catalytically active by contacting the complex, or by combining the complex, with an activation cocatalyst. Activation cocatalysts suitable for use herein include alkyl aluminums; polymeric or oligomeric alumoxanes (also known as aluminoxanes); neutral Lewis acids; and non-polymeric, non-coordinating, ion-forming compounds (which includes the use of such compounds under oxidizing conditions). A suitable activation technique is bulk electrolysis. Combinations of one or more of the cocatalysts and the above activation techniques are also contemplated. The term alkylaluminum means a monoalkylaluminum dihydride or monoalkylaluminum dihalide, a dialkylaluminum hydride or dialkylaluminum halide, or a trialkylaluminum. Examples of polymeric or oligomeric alumoxanes include methyl alumoxane, triisobutylaluminum modified methyl alumoxane, and isobutyl alumoxane. 102 Lewis acid activators (cocatalysts) include group 13 metal compounds containing 1 to 3 (C1-C20)hydrocarbyl substituents as described herein. In one embodiment, the group 13 metal compounds are substituted tri((C1-C20)hydrocarbyl)-aluminum or tri((C1-C20)hydrocarbyl)-boron compounds. In other embodiments, the group 13 metal compounds are substituted tri(hydrocarbyl)-aluminum compounds, tri((CiC20)hydrocarbyl-)boron, tri((Ci-Cio)alkyl)aluminum compounds, tri((Cg- Cis)aryl)boron, and halogenated (including perhalogenated) derivatives thereof. In additional embodiments, the group 13 metal compounds are tris(fluoro-substituted phenyl)borane, tris(pentafluorophenyl)borane. In some embodiments, the activation cocatalyst is a tris((C1-C20)hydrocarbyl borate (e.g., trityl tetrafluoroborate) or a tri((CiC20) hydrocarbyl) ammonium tetra((C1-C20) hydrocarbyl) borane ( for example, bis(octadecyl)methylammonium tetrakis(pentafluorophenyl)borane). As used herein, the term ammonium means a nitrogen cation that is a ((C1-C20) hydrocarbyl) 4N+, a ((C1-C20 ) hydrocarbyl) 3N (H)+, a ((C1-C20) hydrocarbyl) 2N (H)2+, (C1-C20) hydrocarbylN (H) 3+, or N(H)4+, wherein each (C1-C20) hydrocarbyl, when two or more are present, may be the same or different. Combinations of Lewis acid activators 103 neutrals (cocatalysts) include mixtures comprising a combination of a tri((C1-C4)alkyl)aluminum and a halogenated tri((Cg-Cig)aryl)boron compound, especially a tris(pentafluorophenyl)borane. Other embodiments are combinations of such mixtures of neutral Lewis acids with a polymeric or oligomeric alumoxane, and combinations of a single neutral Lewis acid, especially tris(pentafluorophenyl)borane with a polymeric or oligomeric alumoxane. The mole ratios of (metal-ligand complex): (tris(pentafluorophenylborane):(alumoxane) [e.g., (group 4 metal-ligand complex): (tris(pentafluorophenylborane):(alumoxane)] are 1:1 :1 to 1:10:30, in other modalities, from 1:1:1.5 to 1:5:10. The catalyst system comprising the metal ligand complex of Formula (I) can be activated to form an active catalyst composition by combining with one or more cocatalysts, for example, a cation that forms a cocatalyst, a strong Lewis acid, or combinations of these. Suitable activation cocatalysts include polymeric or oligomeric aluminoxanes, especially methyl aluminoxane, as well as inert, compatible, non-coordinating and ion-forming compounds. Illustrative suitable cocatalysts include, but are not limited to: methyl modified aluminoxane (MMAO), bis(tallow alkyl 104 hydrogenated)methyl, tetrakis(pentafluorophenyl)borate(l~) amine and combinations thereof. In some embodiments, one or more of the above activation cocatalysts are used in combination with each other. An especially preferred combination is a mixture of tri((CiC4)hydrocarbyl)aluminum, tri((C1-C4)hydrocarbyl)borane, or an ammonium borate with an oligomeric or polymeric alumoxane compound. The ratio of the total number of moles of one or more metal-ligand complexes of Formula (I) with respect to the total number of moles of one or more of the activation cocatalysts is from 1:10,000 to 100:1. In some embodiments, the ratio is at least 1:5000, in some other embodiments, at least 1:1000; and 10:1 or less and, in some other embodiments, 1:1 or less. When an alumoxane is used alone as the activation cocatalyst, the amount of moles of the alumoxane that is used is preferably at least 100 times the amount of moles of the metal ligand complex of Formula (I). When tris(pentafluorophenyl)borane is used alone as the activation cocatalyst, in some embodiments, the number of moles of the tris(pentafluorophenyl)borane that is used relative to the total number of moles of one or more metal-ligand complexes of the Formula (I) is from 0.5:1 to 10:1, from 1:1 to 6:1, or from 1:1 to 5:1. The remaining activation cocatalysts are generally used in molar amounts approximately equal to those 105 total molar amounts of one or more metalligand complexes of Formula (I). TEST METHODS Test methods include the following: melting index The melting indices I2 (or 12) and lio (or 110) of polymer samples were measured according to ASTM D-1238 (method B) at 190°C and at a load of 2.16 kg and 10 kg, respectively. Their values ​​are reported in g / 10 min. The fractions of the polymer samples were measured by collecting the polymer product from the reactor that produces that specific fraction or portion of the polymer composition. For example, the first fraction of polyethylene can be collected from the reactor that produces the lower density and higher molecular weight component of the polymer composition. The polymer solution is dried under vacuum before measuring the melt index. Density Samples for density measurement were prepared in accordance with ASTM D4703. Measurements were performed in accordance with ASTM D7 92, Method B, within one hour of sample pressing. ASTM D1709, Drop Dart The film dart drop test determines the energy that causes a plastic film to fail under specified falling dart impact conditions. 106 free. The result of the test is the energy, expressed in terms of the weight of the missile falling from a specified height, that would produce the failure of 50% of the samples tested. After the film was produced, it was conditioned for at least 40 hours at 23°C (+ / - 2°C) and 50% RH (+ / 5), according to ASTM standards. Standard test conditions are 23°C (+ / - 2°C) and 50% RH (+ / - 5), in accordance with ASTM standards. The test result may be reported using Method A, which uses a 1.5" (3.81 cm) diameter dart head and a 26" (66.04 cm) drop height, or by Method B, which uses a 1.5" (3.81 cm) diameter dart head. 5.08 cm (2.0) in diameter and a drop height of 152.4 cm (60). The thickness of the sample is measured at the center of the sample, and the sample is then held by an annular sample holder with an inner diameter of 12.7 cm (5 inches). The dart is loaded above the center of the sample and released by a pneumatic or electromagnetic mechanism. The test is carried out according to the ladder method. If the sample fails, the test is performed on a new sample with the dart weight reduced by a known, fixed amount. If the sample does not fail, the test is performed on a new sample with the dart weight increased by a known amount. After 20 have been evaluated 107 samples, the number of failures is determined. If this number is 10, then the test is complete. If the number is less than 10, then the test continues, until 10 failures are recorded. If the number is greater than 10, the test continues, until a total of 10 cases without failures are reached. Dart drop resistance is determined from this data in accordance with ASTM D1709 and is expressed in grams as the Type A dart drop impact. All samples tested were 2 mil thick. Instrumented dart impact The instrumented dart impact method is measured in accordance with ASTM D7192 on plastic film samples with an Instron CEAST 9350 impact tester. The test is carried out with a 12.7 mm diameter impact cell with a clamping assembly. 75 mm diameter and hemispherical head with rubber-coated grips. The instrument is equipped with an environmental chamber for testing at low or high temperature. Typical sample size is 125mm x 125rom. The standard test speed is 200 m / min. Film thickness is 2 mil. Zero Shear Viscosity Measurement Method by Creep Testing Zero shear viscosities are obtained by creep tests, which were carried out on an AR-G2 stress-controlled rheometer (TA Instruments, New Castle, 108 Del), with parallel plates of 25 mm diameter, at 190°C. The rheometer oven is adjusted to the test temperature for at least 30 minutes before setting to zero. At the test temperature, a compression molded sample disc is inserted between the plates and allowed to stabilize for 5 minutes. The top plate is then lowered to 50 μm above the desired test gap (1.5 mm). Any superfluous material is removed by cutting, and the top plate is lowered into the desired space. Measurements are performed under nitrogen purge at a flow rate of 5 L / min. The default creep time is set to 2 hours. A constant low shear stress of 20 Pa is applied to all samples in order to ensure that the steady-state shear rate is low enough to be in the Newtonian region. The resulting steady-state shear rates are in the range of 10-3 to 10-4s-1 for the samples in this study. The steady state is determined by taking a linear regression for all data, at the last 10% time interval of the plot of log(J(t)) versus log(t), where J(t) is the conformity of creep and t is the creep time. If the slope of the linear regression is greater than 0.97, the steady state is considered reached, and then the creep test is stopped. In all In 109 cases in this study, the slope meets the criterion within 2 hours. The steady-state shear rate is determined from the linear regression slope of all data points in the last 10% time interval of the plot of ε versus t, where ε is the stress. Zero shear viscosity is determined from the ratio of the applied stress to the steady-state shear rate. In order to determine whether the sample degrades during the creep test, a small amplitude oscillatory shear test is performed before and after the creep test on the same sample from 0.1 to 100 rad / s. The complex viscosity values ​​of the two tests are compared. If the difference in viscosity values ​​at 0.1 rad / s is greater than 5%, it is considered that the sample suffered degradation during the creep test, and the result is discarded. Gel Permeation Chromatography (GPC) The chromatographic system consisted of a PolymerChar GPC-IR high-temperature GPC chromatograph (Valencia, Spain) equipped with an internal IR5 infrared detector (IR5). The autosampler oven compartment was set at 160°C and the column compartment was set at 150°C. The columns used were 4 linear mixed bed columns of 110 Agilent Mixed A 30 cm micrometers and a 20 um guard column. The chromatographic solvent used was 1,2,4 trichlorobenzene, containing 200 ppm butylated hydroxytoluene (BHT). The solvent source was sprayed with nitrogen. The injection volume used was 200 microliters, and the flow rate was 1.0 milliliter / minute. Calibration of the GPC column set was carried out with 21 narrow molecular weight distribution polystyrene standards with molecular weights ranging from 580 to 8,400,000 g / mol, and were arranged in 6 cocktail mixes with at least one decade of separation between individual molecular weights. Standards were purchased from Agilent Technologies. The polystyrene standards were prepared at 0.025 grams in 50 milliliters of solvent for molecular weights equal to or greater than 1,000,000, and at 0.05 grams in 50 milliliters of solvent for molecular weights less than 1,000,000. The polystyrene standards were dissolved at 80 degrees Celsius, with gentle stirring, for 30 minutes. The peak molecular weights of the polystyrene standard were converted to polyethylene molecular weights using Equation 1 (as described in Williams and Ward, J. Polym. Sci., Polym. Let., 6, 621 (1968)). : -·4 X (EC 1) 111 where M is the molecular weight, A has a value of 0.4315 and B is equal to 1.0, A fifth-order polynomial was used to fit the respective polyethylene equivalent calibration points. A small adjustment to A (approximately 0.375 to 0.445) was made to correct for column resolution and band broadening effects to obtain the linear homopolymer polyethylene standard at 120,000 Mw. Total plate counting of the GPC column array was carried out with decane (prepared at 0.04 g in 50 milliliters of TCB and dissolved for 20 min with gentle stirring). Plate count (Equation 2) and symmetry (Equation 3) were measured in a 200 microliter injection according to the following equations: flerae-Mtü ríoofecKs = 5.54 [— ----] (EC 2) where RV is the retention volume in milliliters, the peak width is in milliliters, the maximum peak is the maximum height of the peak and the height is the height of the maximum peak. Symmetry =(EC 3)‘ R1· Frontal Peak. RV i.V dissiTure7where RV is the retention volume in milliliters, the peak width is in milliliters, the maximum peak is the maximum position of the peak, one tenth of the height is 1 / 10 ΜΛ / 1 / 112 of the height of the maximum peak, and where the rear peak refers to the tail peak at later retention volumes compared to the maximum peak, and where the front peak refers to the front of the peak at previous retention volumes in comparison with the maximum peak. The plate count for the chromatographic system must be greater than 18,000 and the symmetry must be between 0.98 and 1.22. Samples were prepared semi-automatically using PolymerChar's Instrument Control software, where samples were targeted to a weight of 2 mg / mL, and the solvent (containing 200 ppm BHT) was added to a previously septa-capped vial. sprayed with nitrogen, through the PolymerChar high temperature autosampler. The samples were dissolved for 2 hours at 160°Celsius with low speed stirring. The calculations of Mn(gpc), Mw(Gpc) and Mz(Gpc) were based on the GPC results by using the internal IR5 detector (measurement channel) of the PolymerChar GPC-IR chromatograph according to equations 4-6 , using PolymerChar GPCOne™ software, the chromatogram of the initial IR value subtracted at each of the equally spaced data collection points (i), and the polyethylene equivalent molecular weight obtained from the narrow standard calibration curve 113 for point (i) of Equation 1. polyethylene; polyethylene; polyethylene; polyethylene; (EC 6) In order to monitor deviations over time, a flow rate tracer (decane) was introduced into each sample via a micropump controlled with the PolymerChar GPC-IR system. This flow rate marker (FM) was used to linearly correct the pump flow rate (flow rate(nominal)) for each sample by aligning the RV of the respective decane peak within the sample (RV(FM sample) ) with that of the decane peak within the narrow calibration of the standards (RV(FM Calibrated)). It is assumed that any change in the peak time of the decane marker is related to a linear change in the flow rate ((effective) flow rate) during the entire run. To facilitate maximum precision of a measurement 114 RV of the flow marker peak, a least squares fitting routine is used to fit the peak of the flow marker concentration chromatogram into a quadratic equation. The first derivative of the quadratic equation is then used to solve for the true position of the peak. After calibrating the system based on a flow marker peak, the effective flow rate (with respect to the close calibration of the standards) is calculated as Equation 7. Processing of the flow marker peak was carried out with PolymerChar GPCOne™ software. The acceptable flow rate correction is such that the effective flow rate should be within + / -0.5% of the nominal flow rate. Flow rate (effective) = Flow rate (nominal) * (RV(calibrated FM) / RV(sample FM)) (EQ 7) Improved method for comonomer content analysis (iCCD) An improved method for comonomer content analysis (iCCD) was developed in 2015 (Gong and Parrott et al., WO2017040127A1). The iCCD test was performed with crystallization elution fractionation (CEF) instrumentation (PolymerChar, Spain) equipped with IR-5 detector (PolymerChar, Spain) and Model 2040 two-angle light scattering detector (Precision Detectors, currently Agilent Technologies). A column of 115 guard filled with 20-27 micrometer glass (MoSCi Corporation, USA) in stainless steel Xl / 4 (ID) of 5 cm or 10 cm (length) just before the IR-5 detector in the detector oven. Ortho-dichlorobenzene (ODCB, 99% anhydrous grade or technical grade) was used. Silica gel 40 (particle size 0.2 ~ 0.5 mm, catalog number 10181-3) was obtained from EMD Chemicals (can be used to dry the ODCB solvent beforehand). The CEF instrument is equipped with an autosampler with N2 purge capability. The ODCB is sprayed with dry nitrogen (N2) for one hour before use. Sample preparation was performed with an autosampler at 4 mg / mL (unless otherwise specified) under agitation at 160 C for 1 hour. The injection volume was 300 μΐ. The temperature profile of the iCCD was: crystallization at 3°C / min from 105°C to 30°C, thermal equilibrium at 30°C for 2 minutes (including a soluble fraction elution time set at 2 minutes), elution at 3°C / min from 30°C to 140°C. The flow rate during crystallization is 0.0 mL / min. The flow rate during elution is 0.50 mL / min. Data were collected at one data point / second. The ICCD column is packed with gold-coated nickel particles (Brillo 7GNM8-NÍS, Nippon Chemical Industrial Co.) in a 15 cm (length)XI / 4 (ID) stainless tubing. The filling and conditioning of the 116 column were with a suspension method according to the reference (Cong, R.; Parrott, A.; Hollis, C. ; Cheatham, M. WO2017040127A1). The final pressure with the TCB suspension filling was 150 bar. Column temperature calibration was performed with a mixture of the reference material linear homopolymer polyethylene (having a comonomer content equal to zero, melting index (I2) of 1.0, polydispersity Mw / Mnde approximately 2.6 by chromatography conventional gel permeation, 1.0 mg / mL) and eicosane (2 mg / mL) in ODCB. The iCCD temperature calibration consisted of four steps: (1) calculate the lag volume defined as the temperature offset between the maximum measured elution temperature of eicosane minus 30.00°C; (2) subtract the temperature offset from the elution temperature from the iCCD raw temperature data. It is noted that this temperature compensation is a function of experimental conditions, such as elution temperature, elution flow rate, etc.; (3) create a linear calibration line that transforms the elution temperature into a range of 30.00°C and 140.00°C, so that the linear homopolymer polyethylene reference has a maximum temperature of 101.0°C and the eicosane has a maximum temperature of 30.0°C; (4) for the soluble fraction measured isothermally at 30°C, 117 elution temperature below 30.0°C is linearly extrapolated by elution heating rate of 3°C / min according to the reference (Cerk and Gong et al., US9,688,795). The comonomer content versus elution temperature of iCCD was constructed by using 12 reference materials (an ethylene homopolymer and ethylene-octene random copolymer made with a single-site metallocene catalyst, with an average molecular weight in ethylene equivalent weight ranging from 35,000 to 128,000). All of these reference materials were analyzed in the same manner as specified above at 4 mg / mL. The indicated elution peak temperatures were fitted linearly to the linear equation y = -6.3515x. + 101.00, where y represented the elution temperature of iCCD and x represented the mol % of octene, and R2 was 0.978. The molecular weight of the polymer and the molecular weight of the polymer fractions were determined directly from the LS detector (90 degree angle) and the concentration detector (IR-5) according to the RayleighGans-Debys approximation (Striegel and Yau , Modern Size Exclusion Liquid Chromatogram, page 242 and page 263) by assuming the form factor of 1 and all virial coefficients equal to zero. The integration windows are configured to integrate all chromatograms at the elution temperature (the 118 temperature calibration was specified above) in the range of 23.0 to 120°C. The calculation of molecular weight (Mw) of iCCD includes the following four steps: (1) Interdetector displacement measurement. The displacement is defined as the geometric volume displacement between the LS detector with respect to the concentration detector. It is calculated as the difference in elution volume (mi) of the polymer peak between the concentration detector and LS chromatograms. It is converted to temperature compensation by using the elution thermal rate and elution flow rate. A linear high-density polyethylene is used (having a comonomer content equal to zero, melting index (I2) of 1.0, polydispersity Mw / Mnde about 2.6 by conventional gel permeation chromatography). The same experimental conditions are used as the previous normal iCCD method, except the following parameters: crystallization at 10°C / min from 140°C to 137°C, thermal equilibrium at 137°C for 1 minute as the elution time of soluble fraction, soluble fraction (SE) time of 7 minutes, and elution at 3°C / min from 137°C to 142°C. The flow rate during crystallization is 0.0 mL / min. The flow rate during elution is 0.80 mL / min. The sample concentration is 1.0 mg / mL. 119 (2) Each LS data point in the LS chromatogram is shifted to correct for interdetector offset before integration. (3) The baseline subtracted concentration and LS chromatograms are integrated for the entire elution temperature range of Step (1). The MW detector constant is calculated by using a known MW HDPE sample in the range 100,000 to 140,000 Mw and the area ratio of the integrated LS and concentration signals. (4) The Mw of the polymer was calculated by the ratio of the integrated light scattering detector (90 degree angle) to the concentration detector and by the MW detector constant. The half-width calculation is defined as the temperature difference between the front temperature and the rear temperature at half maximum peak height, the front temperature at half maximum peak height is searched forward from 35.0°C, while the back temperature at half of the maximum peak is searched back from 119.0°C. Zero Shear Viscosity Ratio (ZSVR) ZSVR is defined as the ratio of the zero shear viscosity (ZSV) of the branched polyethylene material to the ZSV of the 120 linear polyethylene material at equivalent weight average molecular weight (Mw-gpc) according to the following Equations (EC) 10 and 11: ZSVR= — (EC 10) ηοι=2.29^5M^gpc(EC 11) The ZSV value is obtained from the creep test, at 190°C, using the method described above. The value of Mw-gpc is determined by the conventional GPC method (Equation 5 in the description of the conventional GPC method). The correlation between the ZSV of linear polyethylene and its Mw-gpc was established based on a series of linear polyethylene reference materials. A description of the ZSV-Mw relationship can be found in the ANTEC procedure: Karjala, Teresa P., Sammler, Robert L., Mangnus, Marc A., Hazlitt, Lonnie G., Johnson, Mark S., Hagen, Charles M. Jr., Huang, Joe W. L., Reichek, Kenneth N., Detection of low levels of long-chain branching in polyolefins, Annual Technical Conference - Society of Plastics Engineers (2008), 66.a887-891. MD tear MD tear was measured according to ASTM D-1922. The force in grams required to propagate the tear through a film sample is measured with an Elmendorf tear tester. Acting by gravity, the pendulum swings 121 swings through an arc, which tears the sample from a pre-cut slot. The tear spreads in the transverse direction. Samples are conditioned for a minimum of 40 hours at temperature prior to testing. Dynamic rheological analysis To characterize the rheological behavior of substantially linear ethylene polymers, S Lai and G. W. Knight introduced (ANTEC '93 Proceedings, Insite (TM) Technology Polyolefins (ITP)-New Rules in the Structure / Rheology Relationship of Ethylene &-01efin Copolymers, New Orleans, La., May 1993) a new rheological measurement, the Dow Rheology Index (DRI), which expresses the normalized relaxation time resulting from the long chain branching of a polymer. S. Lai et al.; (ANTEC '94, Dow Rheology Index (DRI) for Insite(TM) Technology Polyolefins (ITP): Unique structure-Processing Relationships, pages 1814-1815) defined the DRI as the degree to which the rheology of ethylene-octene copolymers known as ITPs (Dow Insite Technology Polyolefins) that incorporate long chain branches into the polymer backbone deviate from the rheology of conventional linear homogeneous polyolefins that are reported to have no long chain branches (LCBs) according to the following normalized equation: DRI = [3650000 X (το / ηο) - 1] / 10 122 ΜΛ / 1 / where το is the characteristic relaxation time of the material and is the zero shear rate complex viscosity of the material. The DRI is calculated by least squares fitting of the rheological curve (dynamic complex viscosity η* (ω) as a function of applied frequency (ω), e.g., 0.01 - 100 rads / s) as described in US Patent No. . 6,114,486 with the following generalized cross equation, i.e. η* (ω) = ηο / [1+ (ω · το)n] where n is the power law index of the material, η* (ω) and ω are the measured complex viscosity and the applied frequency data, respectively. Dynamic rheological measurements are carried out, according to ASTM D4440, in a dynamic rheometer (e.g., TA Instruments ARES rheometer) with 25 mm diameter parallel plates in dynamic mode and an inert atmosphere. For all experiments, the rheometer was thermally stable at 190°C for at least 30 min before inserting the appropriately stabilized (with antioxidant additives) and compression molded sample into the parallel plates. The plates are then closed with a positive normal force recorded on the meter to ensure good contact. After about 5 minutes at 190°C, the plates are slightly compressed and excess polymer is trimmed from the circumference of the plates. They allow the 123 ΜΛ / 1 / another 10 minutes pass for thermal stability to occur and for the normal force to decrease back to zero. That is, all measurements are carried out after the samples have been equilibrated at 190°C for about 15 minutes and are performed under complete nitrogen coverage. Initially, two strain sweep (SS) experiments are carried out at 190°C to determine the linear viscoelastic strain generated by a torque signal greater than 10% of the transducer's lower scale, over the entire frequency range ( for example, 0.01 at 100 rad / s). The first SS experiment is carried out with a low applied frequency of 0.1 rad / s. This test is used to determine low frequency torque sensitivity. The second SS experiment is carried out with a high applied frequency of 100 rad / s. This is to ensure that the selected applied stress is well within the linear viscoelastic region of the polymer, so that oscillatory rheological measurements do not induce structural changes in the polymer during testing. Additionally, a time sweep (TS) experiment with a low applied frequency of 0.1 rad / s at the selected voltage (as determined by SS experiments) is carried out to verify the stability of the sample during the test. μλ / 124 The values ​​of storage (or elastic) modulus, loss (or viscous) modulus (G), complex modulus (G*), complex viscosity (η*) and tan δ (the ratio of the loss modulus and the storage modulus , G'VG') were obtained as a function of frequency (ω) at a given temperature (e.g., 190 °C). ASTM D882 MD and CD, 1% and 2% secant modulus The secant modulus of the MD (machine direction) and CD (cross direction) of the film was determined according to ASTM D882. The secant modulus value reported was the average of five measurements. Puncture resistance The puncture test determines a film's resistance to penetration by a probe at a standard low speed, a single test speed. The puncture test method is based on ASTM D5748. After film production, it was conditioned for at least 40 hours at 23°C (+ / - 2°C) and 50% RH (+ / - 5), according to ASTM standards. Standard test conditions are 23°C (+ / - 2°C) and 50% RH (+ / - 5), in accordance with ASTM standards. The perforation was measured on a tensile testing machine. The square samples were cut from a sheet to a size of 6 inches by 6 inches (15.24 cm). The sample was clamped in a 4-inch (10.16 cm) diameter circular sample holder and a probe of 125 perforation in the center of the clamped film at a traverse speed of 10 inches / minute (25.4 cm / minute). The internal test method is based on ASTM D5748, with one modification. Deviated from the ASTM D5748 method in that the probe used was a 0.5 inch (1.27 cm) diameter polished steel ball on a 0.25 inch (0.64 cm) support rod (instead of the 0.75 inch pear-shaped probe). inches (1.91 cm) diameter specified in D5748). There was a maximum stroke length of 7.7 inches (1.96 cm) to prevent damage to the test device. There was no calibration length; Before testing, the probe was as close as possible to, but not touching, the sample. A single thickness measurement was performed at the center of the sample. For each sample, the maximum force, breaking force, penetration distance and breaking energy were determined. A total of five samples were evaluated to determine the average puncture value. The drill probe was cleaned with a Kim-wipe after each sample. EXAMPLES The following examples illustrate features of the present description, but are not intended to limit the scope of the description. The following experiments analyzed the performance of the multilayer film modalities 126 described herein. Example 1A: Preparation of polyethylene compositions 1-5 Polyethylene compositions 1-5, which are described according to one or more embodiments of the detailed description, were prepared with a method and with the catalysts and reactors described below. All raw materials (monomer and comonomer) and the process solvent (a high-purity limited boiling range isoparafunic solvent, Isopar-E) are purified with molecular sieves before introduction into the reaction environment. Hydrogen is supplied in a pressurized manner at a high purity level and is not further purified. The reactor monomer feed stream was pressurized via a mechanical compressor above the reaction pressure. The solvent and comonomer feed is pressurized with a pump above the reaction pressure. The individual catalyst components are manually diluted in batches with purified solvent and pressurized above the reaction pressure. All reaction feed flows are measured with mass flow meters and independently controlled with computer automated valve control systems. A two reactor system is used in a configuration 127 in series, as illustrated in Figure 3. Each continuous solution polymerization reactor consists of a circulating, isothermal, nonadiabatic, liquid-filled loop reactor that mimics a continuous stirred tank reactor (CSTR). acronym in English) with heat removal. Independent control of all new feeds of solvents, monomers, comonomers, hydrogen and catalyst components is possible. The total new feed stream to each reactor (solvent, monomer, comonomer, and hydrogen) is temperature controlled to maintain a single solution phase by passing the feed stream through a heat exchanger. The total new feed to each polymerization reactor is injected into the reactor at two locations with approximately equal reactor volumes between each injection location. The refeed is controlled by each injector receiving half the mass flow of the total refeed. The catalyst components are injected into the polymerization reactor through injection needles. The feed of the primary catalyst component is computer controlled to keep each monomer conversion in the reactor at specified targets. The cocatalyst components are fed based on specified molar ratios calculated with respect to the primary catalyst component. Immediately 128 After each reactor feed injection location, the feed streams are mixed with the contents of the circulating polymerization reactor with static mixing elements. The contents of each reactor are continuously circulated through heat exchangers that are responsible for removing much of the heat of reaction and with the coolant side temperature responsible for maintaining an isothermal reaction environment at the specified temperature. . A pump provides circulation around each loop of the reactor. In the dual series reactor configuration, the effluent from the first polymerization reactor (containing solvent, monomer, comonomer, hydrogen, catalyst components, and polymer) exits the first reactor loop and is added to the second reactor loop. The effluent from the second reactor enters a zone where it is deactivated by the addition of, and reaction with, a suitable reagent (water). At this same reactor outlet location, other additives are added for polymer stabilization (typical antioxidants suitable for stabilization during extrusion and film manufacturing, such as octadecyl 3,5-ditert-butyl-4-hydroxyhydrocinnamate, tetrakis(methylene(3,5-ditert-butyl-4-hydroxyhydrocinnamate))methane and tris(2,4-di-tert-butyl-phenyl) phosphite. After deactivation of the catalyst and addition 129 of additives, the reactor effluent enters a devolatilization system where the polymer is removed from the non-polymer stream. The isolated polymer melt is pelletized and collected. The non-polymer stream passes through various pieces of equipment that separate the majority of the ethylene that is removed from the system. Most of the unreacted solvent and comonomer is recycled back to the reactor after passing through a purification system. A small amount of solvent and comonomer is purged from the process. The reactor stream feed data flows corresponding to the values ​​in Table 1 used to produce the examples are described graphically in Figure 3. The data are presented in a way that takes into account the complexity of the feed system. solvent recycling and that the reaction system can be treated more simply as a single-step flow sheet. Table IB shows the catalysts referenced in Table 1A. Table 1A Polyethylene Composition Polyethylene Composition 1 Polyethylene Composition 2 Polyethylene Composition 3 Polyethylene Composition 4 Polyethylene Composition 5 Reactor Configuration Type Dual Series Dual Series Dual Series Dual Series Dual Series Comonomer Type Type 1-octene 1-octene 1-octene 1-octene 1-octene 130 First reactor feed solvent / ethylene mass flow ratio g / g 5.2 5.3 6.6 5.2 5.3 First reactor feed or comonomer / ethylene mass flow ratio g / g 0.31 0.31 0.32 0.31 0.30 Mass flow ratio of hydrogen / ethylene feed of the first reactor g / g 7.9E-05 6.3E-05 6.2E-05 8.9E-05 5.4E-05 Temperature of the first reactor °c 175 175 170 175 175 Pressure of the first reactor barg 50 50 50 50 50 Ethylene conversion of the first reactor % 86.7 91.0 91.0 86.7 90.9 Catalyst type of the first reactor Type Catalyst component 1 Catalyst component 1 Catalyst component 1 Catalyst component 1 Catalyst component 1 Type of first reactor cocatalyst 1 Type Cocatalyst 1 Cocatalyst 1 Cocatalyst 1 Cocatalyst 1 Cocatalyst 1 Type of cocatalyst 2 of the first reactor Type Cocatalyst 2 Cocatalyst 2 Cocatalyst 2 Cocatalyst 2 Cocatalyst 2 Catalyst metal of the first reactor Type Zr Zr Zr Zr Zr Molar ratio of cocatalyst 1 with respect to catalyst of the first reactor (ratio of B with respect to Zr) Ratio 2.4 1.1 1.2 1.5 1.5 131 Molar ratio of cocatalyst 2 with respect to catalyst of the first reactor (ratio of Al with respect to Zr) Ratio 23.7 55.0 45.0 15.8 11.5 Residence time in the first reactor min 7.8 8.5 9.0 8.0 8.5 Solvent / ethylene mass flow ratio second reactor feed g / g 2.4 2.1 2.5 2.5 2.1 Second reactor feed comonomer / ethyl ene mass flow ratio g / g 0.148 0.068 0.063 0.086 0.061 Second reactor feed hydrogen / ethylene mass flow ratio g / g 3.3E-04 1.1E-03 3.1E-04 3.1E-04 1.1E-03 133 Molar ratio of cocatalyst 2 to second reactor catalyst (Al to metal ratio) mol / mol 1443.4 >100.0 >100.0 >100.0 >100.0 Residence time in second reactor min 5.6 5.7 5.4 5.6 5.7 Percentage of total feed of ethylene to the first reactor % by weight 56.9 52.4 41.5 56.9 52.5 Table IB Catalyst component 1 Zirconium, dimethyl[[2.2'”-[[b¡s[1-methylethyl¡l)germilen]bis(methyleneoxy-kO)]bis[3”,5.5”tris(1, 1-dimethylethyl)-5'-octyl[1,1 ':3',1 ”-terphenyl]-2'-olate-kO]](2-)] Catalyst component 2 Zirconium, dimethyl [[2,2 '”-[l ,3-propandiylbis(oxy-kO)]b¡s[3-[2,7-bis( 1,1 -dimethylethyl)-9Hcarbazol-9-yl]]-5'-(dimet ¡loct¡ls¡l¡l)-3'-methyl¡l-5-(1,1,3,3- tetramethylbutyl)[1,1 ]-biphenyl]-2olate-kO]](2-)]- Catalyst component 3 Hafnium, [[2',2'-[1,2-cyclohexand¡lb¡s(met¡lenoxy¡-.kappa.O)]b¡s[3-(9H-carbazole-9-yl )- 5-methyl[1, T-biphenyl]-2-olato-.kappa.O]](2-)]dimethyl- Catalyst component 4 Catalyst component 4 comprised a Ziegler-Natta type catalyst. The heterogeneous Ziegler-Natta type catalyst premix was prepared substantially in accordance with US Patent No. 4,612,300, by sequentially adding to a volume of ISOPAR E a suspension of anhydrous magnesium chloride in ISOPAR E, a solution of EtAICb in heptane, and a solution of Ti(O-iPr)4 in heptane, to obtain a composition containing a magnesium concentration of 0.20 M and a Mg / AI / T¡ ratio of 40 / 12.5 / 3. An aliquot of this composition was further diluted with ISOPAR-E to obtain a final concentration of 500 ppm Ti in the suspension. While feeding to the polymerization reactor, and before entering it, the catalyst premix was contacted with a dilute solution of Et3AI, in the molar ratio of Al with respect to Ti specified in Table XX, to obtain the active catalyst. Cocatalyst 1 bis(hydrogenated tallow alkyl)methylammonium tetrakis(pentafluorophenyl)borate(1-) Cocatalyst 2 modified methyl aluminoxane Cocatalyst 3 Tri-ethyl aluminum μλ / 134 Example IB: Preparation of polyethylene composition 6 Polyethylene Compositions 6 and 7, which are described according to one or more embodiments of the detailed description, were prepared with a method and with the catalysts and reactors described below. All raw materials (monomer and comonomer) and the process solvent (a high-purity limited boiling range isoparafunic solvent, Isopar-E) are purified with molecular sieves before introduction into the reaction environment. Hydrogen is supplied in a pressurized manner with a high degree of purity and is not further purified. The reactor monomer feed stream is pressurized with a mechanical compressor above the reaction pressure. The solvent and comonomer feed is pressurized with a pump above the reaction pressure. The individual catalyst components are manually diluted in batches with purified solvent and pressurized above the reaction pressure. All reaction feed flows are measured with mass flow meters and independently controlled with computer automated valve control systems. A two reactor system is used in a parallel configuration. Each continuous solution polymerization reactor consists of a liquid-filled loop reactor, not 135 adiabatic, isothermal, circulation reactor that mimics a continuous stirred tank reactor (CSTR) with heat removal. Independent control of all new feeds of solvents, monomers, comonomers, hydrogens and catalyst components is possible. The total new feed stream to each reactor (solvent, monomer, comonomer, and hydrogen) is temperature controlled to maintain a single solution phase by passing the feed stream through a heat exchanger. The total new feed to each polymerization reactor is injected into the reactor at two locations with approximately equal reactor volumes between each injection location. The refeed is controlled by each injector receiving half the mass flow of the total refeed. The catalyst components are injected into the polymerization reactor through specially designed injection needles. The feed of the primary catalyst component is computer controlled to keep each monomer conversion in the reactor at specified targets. The cocatalyst components are fed based on specified molar ratios calculated with respect to the primary catalyst component. Immediately after each reactor feed injection location, the feed streams are mixed with the contents of the polymerization reactor in 136 circulation with static mixing elements. The contents of each reactor are continuously circulated through heat exchangers that are responsible for removing much of the reaction heat and with the coolant side temperature responsible for maintaining an isothermal reaction environment at the specified temperature. . A pump provides circulation around each loop of the reactor. The effluent streams from the first and second polymerization reactors are combined before any further processing. The final combined reactor effluent enters a zone where it is deactivated by the addition of, and reaction with, a suitable reagent (water). At this same reactor outlet location, other additives are added for polymer stabilization (typical antioxidants suitable for stabilization during extrusion and blown film manufacturing, such as octadecyl 3,5-di-tert-butyl-4- hydroxyhydrocinnamate, tetrakis(methylene(3,5-di-tert-butyl-4hydroxyhydrocinnamate))methane and tris(2,4-di-tert-butyl-phenyl) phosphite. After deactivation of the catalyst and addition of additives, the reactor effluent enters a devolatilization system where the polymer is removed from the non-polymer stream. The fusion of the isolated polymer is 137 ΜΛ / 1 / is pelleted and collected. The non-polymer stream passes through various pieces of equipment that separate the majority of the ethylene that is removed from the system. Most of the unreacted solvent and comonomer is recycled back to the reactor after passing through a purification system. A small amount of solvent and comonomer is purged from the process. The reactor stream feed data streams corresponding to the values ​​in Table 2A used to produce the example are described graphically in Figure 4. The data are presented in a way that takes into account the complexity of the feed system. solvent recycling and that the reaction system can be treated more simply as a single-step flow sheet. Table IB shows the catalysts referred to in Table 2A of Example 1A. Table 2A Polyethylene composition Polyethylene composition 6 Reactor configuration Type Dual parallel Comonomer type Type 1-octene First reactor feed solvent / ethylene mass flow ratio g / g 10.4 Comonomer / ethylene mass flow ratio g / g 0.33 138 first reactor feed First reactor feed hydrogen / ethylene mass flow ratio g / g 6.6E-05 First reactor temperature °c 160 First reactor pressure barg 50 First reactor ethylene conversion % 90.6 Catalyst type first reactor Type Catalyst component 1 Type of cocatalyst 1 of the first reactor Type Cocatalyst 1 Type of cocatalyst 2 of the first reactor Type Cocatalyst 2 Catalyst metal of the first reactor Type Zr Molar ratio of cocatalyst 1 with respect to catalyst of the first reactor (ratio of B with to metal) Ratio 2.0 Molar ratio of cocatalyst 2 to catalyst of the first reactor (ratio of Al to metal) Ratio 46.7 Residence time in the first reactor min 7.7 Mass flow ratio of feed solvent / ethylene second reactor g / g 2.5 Second reactor feed comonomer / ethylene mass flow ratio g / g 0.048 Second reactor feed hydrogen / ethylene mass flow ratio g / g 4.0E-04 Second reactor temperature ° c 195 139 Pressure of the second reactor barg 50 Ethylene conversion of the second reactor % 93.7 Type of catalyst of the second reactor Type Catalyst component 2 Type of cocatalyst 1 of the second reactor Type Cocatalyst 1 Type of cocatalyst 2 of the second reactor Type Cocatalyst 2 Catalyst metal of the second reactor Type Zr Molar ratio of cocatalyst 1 to catalyst in the second reactor (ratio of B to metal) mol / mol 12.0 Molar ratio of cocatalyst 2 to catalyst in the second reactor (ratio of Al to metal) mol / mol >100.0 Residence time in the second reactor min 22.9 Percentage of total ethylene feed to the first reactor % by weight 47.7 Example 2: Comparative compositions A-J Comparative Compositions A-C were prepared with the methods described below. Comparative Compositions D-F are bimodal polyethylene compositions that are generally prepared with the catalyst system and processes provided for preparing the first inventive compositions of PCT publication no. WO 2015 / 200743. Comparative Compositions G-J are commercially available polyethylene compositions. Table 3 identifies commercially available polyethylene compositions from Comparative Compositions G-J. 140 ΜΛ / 1 / Table 3 Sample Comparative Polyethylene Composition Trade Name (Manufacturing Company) G ELITE 5400G (Dow Chemical Co.) H ELITE 5111G (Dow Chemical Co.) I EXCEED 1012 (ExxonMobil) J EXCEED 1018 (ExxonMobil) The preparation of Comparative Compositions A-C is described below. All raw materials (monomer and comonomer) and the process solvent (a high-purity limited boiling range isoparaffinic solvent, Isopar-E) are purified with molecular sieves before introduction into the reaction environment. Hydrogen is supplied in a pressurized manner with a high degree of purity and is not further purified. The reactor monomer feed stream is pressurized with a mechanical compressor above the reaction pressure. The solvent and comonomer feed is pressurized with a pump above the reaction pressure. The individual catalyst components are manually diluted in batches with purified solvent and pressurized above the reaction pressure. All reaction feed streams 141 are measured with mass flow meters and independently controlled with computer automated valve control systems. A two reactor system is used in a series configuration. Each continuous solution polymerization reactor consists of a circulating, nonadiabatic, isothermal, liquid-filled loop reactor that mimics a continuous stirred tank reactor (CSTR) with heat removal. Independent control of all new feeds of solvents, monomers, comonomers, hydrogens and catalyst components is possible. The total new feed stream to each reactor (solvent, monomer, comonomer, and hydrogen) is temperature controlled to maintain a single solution phase by passing the feed stream through a heat exchanger. The total new feed to each polymerization reactor is injected into the reactor at two locations with approximately equal reactor volumes between each injection location. The refeed is controlled by each injector receiving half the mass flow of the total refeed. The catalyst components are injected into the polymerization reactor through injection needles. The feed of the primary catalyst component is computer controlled to maintain each conversion of the 142 monomer in the reactor at the specified targets. The cocatalyst components are fed based on specified molar ratios calculated with respect to the primary catalyst component. Immediately after each reactor feed injection location, the feed streams are mixed with the contents of the circulating polymerization reactor with static mixing elements. The contents of each reactor are continuously circulated through heat exchangers that are responsible for removing much of the reaction heat and with the coolant side temperature responsible for maintaining an isothermal reaction environment at the specified temperature. . A pump provides circulation around each loop of the reactor. In the dual series reactor configuration, the effluent from the first polymerization reactor (containing solvent, monomer, comonomer, hydrogen, catalyst components, and polymer) exits the first reactor loop and is added to the second reactor loop. The effluent from the second reactor enters a zone where it is deactivated by the addition of, and reaction with, a suitable reagent (water). At this same reactor outlet location, other additives are added for polymer stabilization (typical antioxidants 143 suitable for stabilization during extrusion and film manufacturing, such as octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate, tetrakis(methylene(3,5-ditert-butyl-4-hydroxyhydrocinnamate))methane and tris (2,4-ditert-butyl-phenyl) phosphite. After deactivation of the catalyst and addition of additives, the reactor effluent enters a devolatilization system where the polymer is removed from the non-polymer stream. The isolated polymer melt is pelletized and collected. The non-polymer stream passes through various pieces of equipment that separate the majority of the ethylene that is removed from the system. Most of the unreacted solvent and comonomer is recycled back to the reactor after passing through a purification system. A small amount of solvent and comonomer is purged from the process. The reactor stream feed data streams corresponding to the values ​​in Table 4A used to produce the example are described graphically in Figure 3. The data is presented in a way that takes into account the complexity of the feed system. solvent recycling and that the reaction system can be treated more simply as a single-step flow sheet. Table IB shows the catalysts and cocatalysts shown in the Table 4A. 144 Table 4A Polyethylene composition Comparative composition A Comparative composition B Comparative composition C Reactor configuration Type Dual series Dual series Dual series Comonomer type Type 1-octene 1-octene 1-octene First reactor feed solvent / ethylene mass flow ratio g / g 5.5 5.1 5.3 First reactor feed comonomer / ethylene mass flow ratio g / g 0.22 0.39 0.36 First reactor feed hydrogen / ethylene mass flow ratio g / g 1.8E-04 1.0E-04 9.2E-05 First reactor temperature °c 160 160 160 First reactor pressure barg 50 50 50 First reactor ethylene conversion % 90.9 88.4 90.8 First reactor catalyst type Type Catalyst component 3 Catalyst component 1 Catalyst component 1 Cocatalyst type 1 of the first reactor Type Cocatalyst 1 Cocatalyst 1 Cocatalyst 1 Type of cocatalyst 2 of the first reactor Type Cocatalyst 2 Cocatalyst 2 Cocatalyst 2 Catalyst metal of the first reactor Type Hf Zr Zr Molar ratio of cocatalyst 1 with respect to catalyst of the first reactor (ratio of B with respect to metal) Ratio 12.1 1.2 1.2 Molar ratio of cocatalyst 2 with Ratio 50.1 15.0 9.6 to catalyst of the first reactor (ratio of Al to metal) n Residence time in the first reactor min 17.4 7.6 8.0 Mass flow ratio of solvent / ethylene feed of the second reactor g / g 2.2 2.5 2.5 Flow ratio second reactor feed comonomer / ethylene mass flow ratio g / g 0.030 0.105 0.084 Second reactor feed hydrogen / ethylene mass flow ratio g / g 1.4E-04 2.5E-04 2.5E-04 Second reactor temperature °c 195 190 190 Second reactor pressure barg 52 51 51 Second reactor ethylene conversion % 89.1 82.9 83.7 Second reactor catalyst type Type Catalyst component 4 Catalyst component 2 Catalyst component 2 Second reactor cocatalyst 1 type Type None Cocatalyst 1 Cocatalyst 1 Type of cocatalyst 2 of the second reactor Type Cocatalyst 3 Cocatalyst 2 Cocatalyst 2 Metal catalyst of the second reactor Type Ti Zr Zr Molar ratio of cocatalyst 1 with respect to catalyst of the second reactor (ratio of B with respect to metal) mol / mo I n / a 1.2 1.2 Molar ratio of cocatalyst 2 with respect to catalyst of the second reactor (ratio of Al with respect to metal) mol / mo I 4.0 3950 3520 Residence time in the second min 7.7 5.8 5.8 146 reactor Percentage of total ethylene feed to first reactor % by weight 27.9 60.7 58.1 Example 3: Analysis of polyethylene samples The polyethylene Compositions 1-6 of Examples 1A and IB, Comparative Polyethylene Compositions A-C of the Example 2 and Comparative Commercially Available Polyethylene Samples D-J of Example 2 were analyzed by iCCD. iCCD data for Polyethylene Composition 5 is provided in Figure 2. Additional data generated from iCCD testing of all samples is provided in Tables 5A and 5B. Specifically, Tables 5A and 5B include analysis of the iCCD data, including the areas of the respective first and second polyethylene fractions (45-87°C and 95-120°C). Additional data is also provided for each example composition, including overall density, dart drop resistance (method A), melt index, weight average molecular weight in the second PE fraction. These properties are a function of monolayer blown films that consist entirely of each polyethylene sample. To perform dart drop testing, as well as other formed film testing, 2 mil blown films were formed from the polyethylene samples. Specifically, monolayer blown films are produced with an Egan extruder 147 Davis Standard, fitted with a 3.5-inch (8.89 cm) ID semi-grooved barrel; L / D ratio of 30 / 1; a barrier spindle; and an Alpine air ring. The extrusion line has a 20.32 cm (8 inch) die with internal bubble cooling. The extrusion line also has a film thickness calibration scanner. The film manufacturing conditions were: film thickness maintained at 2 mil (0.001 in or 0.0254 mm); blowing ratio (BUR) 2.5; die space 70 thousand; and frost line height (FLH) 93.98 cm (37 inches). Exit velocity was constant at 117.93 kg / h (260 lb / h). Table 5A PE sample Total density Total MI Area of ​​the first PE fraction (45-87°C) Area of ​​the second PE fraction (95-120°C) Ratio of the area of ​​the first PE fraction with respect to the area of ​​the second PE fraction Unit (g / cm3) g / 10min % % 1 0.925 0.85 55.97% 29.09% 1.92 3 0.928 0.85 45.24% 43.81% 1.03 5 0.928 0.85 57.96% 29.23% 1.98 6 0.93 0.50 47.08% 44.07% 1.07 A 0.935 0.85 31.80% 53.70% 0.59 B 0.918 0.85 65.50% 24.30% 2.70 C 0.918 0.85 67.80% 24.97% 2.72 D 0.912 0.85 76.41% 7.49% 10.20 148 Μ Λ / 1 / E 0.918 0.85 60.58% 17.33% 3.50 F 0.925 0.85 55.35% 21.44% 2.58 G 0.916 1.00 73.66% 9.55% 7.71 H 0.925 0.85 52.82% 21.84% 2.4 2 1 0.912 1.00 91.22% 1.51% 60.41 J 0.918 1.00 73.38% 5.44% 13.49 Table 5B PE sample Mw of the second PE fraction MWD of the total polyethylene composition Dart A Tear MD FWHM melt index of the first PE fraction Unit (g / mol) g gf °C g / 10min 1 60 444 3.5 1200 252 4 0.15 3 61805 3.5 1000 168 2.8 0.1 5 45684 4.6 1800 226 3.2 0.15 6 54882 4 2200 144 2.8 0.05 A 119731 3.9 300 103 4.2 0.1 B 65836 2.8 2200 303 3 0.28 C 72441 2.8 1800 324 2.8 0.3 D 96844 3.8 2000 - - 0.2 E 107698 3.8 1700 292 - 0.2 F 95477 3.5 700 214 10.6 0.15 G 126779 3.9 1200 - - - H 114384 3.7 400 - - - I 73300 2.4 1800 - - - J 918 78 2.5 1200 - - - 149 The results show that no comparative example composition exhibits comparable dart drop resistances at total densities of at least 0.924 g / cm3. For example, some comparative examples have high dart drop resistance, but these samples have a much lower density. Comparative samples of higher density (e.g., 0.924 g / cm3 to 0.936 g / cm3) show much lower dart drop resistance (e.g., less than 1000 grams). Furthermore, several compositions of Example 1 had Dow rheology indices of less than 10, such as 3.5, 4.6 and 5.5. Example 4: Evaluation of the use of the described polyethylene composition in the central layer Example 4 compares four multilayer film samples prepared in accordance with the embodiments described and described herein (Film 4-1, Film 4-2, Film 4-3 and Film 4-4), with comparative multilayer film samples ( Comparative 4-A, Comparative 4-B, Comparative 4-C, Comparative 4-D, Comparative 4-E, Comparative 4-F, Comparative 4-G and Comparative 4-H). For all samples produced and evaluated in Example 4, the multilayer films had three layers, including two outer layers and a core layer. The material used in the outer layer was the same for each outer layer and remained 150 constant in each sample. To observe the effect of using various materials in the core layer, the samples tested in Example 4 included a core layer composed of one material, but the materials were different for the various samples. In Example 4, samples having a total thickness of 55 pm and a total thickness of 45 pm were produced to observe the effects of thickness reduction. Film 4-1, Film 4-2, Film 4-3 and Film 4-4 are examples of multilayer films according to some embodiments of the present disclosure. As shown below in Table 6, Polyethylene Composition 1 (PE Comp. 1), prepared according to Example 1A, was used in Film 4-1 and Film 4-3; Polyethylene Composition 2 (PE Comp. 2), prepared according to Example 1A, was used in Movie 4-2 and Movie 4-4; and each of Film 4-1, Film 4-2, Film 4-3 and Film 4-4 included DOWLEX™ GM 8051 polyethylene (melt index: 0.9 g / 10 min at 2.16 kg and 190°C , density: 0.921 g / cm3, commercially available from The Dow Chemical Company). Also as shown later in Table 6, Comparative 4-A, Comparative 4-B, Comparative 4-C, Comparative 4-D, Comparative 4-E, Comparative 4-F, Comparative 4- G and Comparative 4-H included two or more DOWLEX™ GM 8051 polyethylene (melt index: 0.9 g / 10 min at 151 2.16 kg and 190°C, density: 0.921 g / cm3, commercially available from The Dow Chemical Company), DOWLEX™ 2049 polyethylene (melt index: 1.0 g / 10 min at 2.16 kg and 190°C, density : 0.926 g / cm3, commercially available from The Dow Chemical Company), 6D20 polypropylene resin (melt index: 1.9 g / 10 min at 2.16 kg and 230°C, density: 0.900 g / cm3, available in trade through Braskem rPP), and two compositions of bimodal polyethylene (melting index: 0.85 g / 10 min at 2.16 kg and 190°C, density: 0.918 g / cm3, bimodal PEI) and (melting index: 0.85 g / 10 min at 2.16 kg and 190°C, density: 0.926 g / cm3, bimodal PE2)). Bimodal PEI and bimodal PE2 are polyethylene compositions that are generally prepared with the catalyst system and processes provided for preparing the first inventive compositions of PCT publication no. WO 2015 / 200743. To produce the sample films of Example 4, the materials of Table 6 were formed into blown films on a 5-layer extrusion line, equipped with a blow ratio (BUR) of 2.5, a die temperature of 230° C; a die space of 1.8 mm, a melting temperature of 225°C and a speed of 12.5 kg / h. The structure and layer distribution of the multilayer films of Example 4 are given as follows in Table 6. 152 Table 6. Structure and layer distribution of multilayer films of Example 4. Sample Structure Second layer / first layer / third layer Thickness Total thickness (pm) Layer distribution (pm) Comp. 4-A DOWLEX™ GM 8051 / PE1 bimodal / DOWLEX™ GM 8051 55 11 / 33 / 11 Comp. 4-B DOWLEX™ GM 8051 / DOWLEX™ 2049 / DOWLEX™ GM 8051 55 11 / 33 / 11 Comp. 4-C DOWLEX™ GM 8051 / PE2 bimodal / DOWLEX™ GM 8051 55 11 / 33 / 11 Comp. 4-D DOWLEX™ GM 8051 / rPP / DOWLEX™ GM 8051 55 11 / 33 / 11 Comp. 4-E DOWLEX™ GM 8051 / PE1 bimodal / DOWLEX™ GM 8051 45 9 / 27 / 9 Comp. 4-F DOWLEX™ GM 8051 / DOWLEX™ 2049 / DOWLEX™ GM 8051 45 9 / 27 / 9 Comp. 4-G DOWLEX™ GM 8051 / PE2 bimodal / DOWLEX™ GM 8051 45 9 / 27 / 9 Comp. 4-H DOWLEX™ GM 8051 / rPP / DOWLEX™ GM 8051 45 9 / 27 / 9 Film inv. 4-1 DOWLEX™ GM 8051 / Comp. of PE 1 / DOWLEX™ GM 8051 55 11 / 33 / 11 Film inv. 4-2 DOWLEX™ GM 8051 / Comp. of PE 2 / DOWLEX™ GM 8051 55 11 / 33 / 11 Film inv. 4-3 DOWLEX™ GM 8051 / Comp. of PE 1 / DOWLEX™ GM 8051 45 9 / 27 / 9 Film inv. 4-4 DOWLEX™ GM 8051 / Comp. PE 2 / DOWLEX™ GM 8051 45 9 / 27 / 9 153 ΜΛ / t / Certain properties of multilayer films of the Example 4 were measured according to the test methods described herein, and the properties are provided in Table 7. Table 7. Properties of the multilayer films of Example 4. Sample Structure Second layer / first layer / third layer Dart B (g) 2% MD secant modulus (MPa) Comp. 4-A DOWLEX™ GM 8051 / PEI bimodal / DOWLEX™ GM 8051 691 175 Comp. 4-B DOWLEX™ GM 8051 / DOWLEX™ 2049 / DOWLEX™ GM 8051 <300 212 Comp. 4-C DOWLEX™ GM 8051 / PE2 bimodal / DOWLEX™ GM 8051 430 222 Comp. 4-D DOWLEX™ GM 8051 / rPP / DOWLEX™ GM 8051 <300 448 Comp. 4-E DOWLEX™ GM 8051 / PE1 bimodal / DOWLEX™ GM 8051 646 194 Comp. 4-F DOWLEX™ GM 8051 / DOWLEX™ 2049 / DOWLEX™ GM 8051 <300 215 Comp. 4-G DOWLEX™ GM 8051 / PE2 bi-mode / DOWLEX™ GM 8051 345 222 Comp. 4-H DOWLEX™ GM 8051 / rPP / DOWLEX™ GM 8051 <300 493 Film inv. 4-1 DOWLEX™ GM 8051 / Comp. of PE 1 / DOWLEX™ GM 8051 741 212 Inv. film 4-2 DOWLEX™ GM 8051 / Comp. of PE 2 / DOWLEX™ GM 8051 1137 261 Inv. film 4-3 DOWLEX™ GM 8051 / Comp. of PE 1 / DOWLEX™ GM 8051 588 209 Inv. film 4-4 DOWLEX™ GM 8051 / Comp. PE 2 / DOWLEX™ GM 8051 975 269 As shown in Table 7, for the films having a total thickness of 55 pm, Comparative 4-A exhibited 154 the lowest secant modulus of all the samples evaluated. Although Comparative 4-D showed a secant modulus of 448 MPa, it exhibited a dart B of less than 300 g. Comparative 4B, Comparative 4-C, and Movie 4-1 showed relatively comparable secant modulus properties. However, Movie 4-1 exhibited a higher B dart than Comparative 4-B and Comparative 4-C. Film 4-2 exhibited the highest dart B and secant modulus values ​​of all the samples evaluated in Example 4 with a total thickness of 55 pm. As shown in Table 7, for films having a total thickness of 45 pm, Comparative 4-E exhibited the second lowest secant modulus of all samples tested. Although Comparative 4-H showed a secant modulus of 493 MPa, it exhibited a dart B of less than 300 g. Comparative 4-F, Comparative 4-G, and Movie 4-3 showed relatively comparable secant modulus properties. However, Movie 4-3 exhibited a higher B-dart than Comparative 4-F and Comparative 4-C. Film 4-4 exhibited the highest dart B of all the samples evaluated in Example 4 that had a total thickness of 45 micrometers and the highest secant modulus values ​​of all the samples that had a polyethylene center layer and a thickness total of 45 micrometers. Therefore, the results in Table 7 show that the embodiments of the present description, which include a 155 core layer incorporating the polyethylene composition described herein, can provide unexpected superior dart impact resistance compared to multilayer films that include core layers comprising other polyolefins. Here, a balance of stiffness (2% secant modulus) and dart impact resistance can be observed in the case of the multilayer films, which was not achieved with the comparative multilayer films. This balance of stiffness and toughness can be advantageous in various packaging applications, especially when smaller gauges (thickness reduction) are used. Example 5: Evaluation of the use of the described polyethylene composition in the central layer and the outer layers Example 5 compares three multilayer film samples prepared in accordance with some embodiments described herein (Film 5-1, Film 5-2, and Film 5-3) with comparative multilayer film samples (Comparative 5A, Comparative 5-B, Comparison 5-C, Comparison 5-D). For all samples produced and evaluated in Example 5, the multilayer films had three layers, including two outer layers and a central layer. In the outer layers of all samples evaluated in Example 5, the LDPE material used and the weight percentage of the LDPE material in the outer layer remained constant. In the central layers of all samples evaluated in Example 5, the material 156 masterbatch, the amount of masterbatch material and the HDPE material used in the core layer remained constant. In Example 5, samples were produced that had a total thickness of 4.0 mils (101.6 pm) and a total thickness of 4.23 mils (107.4 pm), to observe the effect of thickness reduction on certain properties. To observe the effect of using the described polyethylene compositions in the core layer and outer layers, the balance of materials in the outer layer and core layers was varied for the samples of Example 5. Film 5-1, Film 5-2 and Film 5-3 are examples of multilayer films according to some embodiments described herein. As shown later in Table 8, Polyethylene Composition 4 (PE Comp. 4), prepared according to Example 1A, was used in Film 5-1; Polyethylene Composition 2, prepared according to Example 1A, was used in Movie 5-2 and Movie 5-3; AGILITY™ 1200 polyethylene (melt index: 0.25 g / 10 min at 2.16 kg and 190°C, density: 0.919 g / cm3, commercially available from The Dow Chemical Company) was used in Film 5-1 , Movie 5-2 and Movie 5-3; DMDH 6400 polyethylene (melt index: 0.80 g / 10 min at 2.16 kg and 190°C, density: 0.961 g / cm3, commercially available from The Dow Chemical Company), was used in Movie 5-1 , Movie 5-2 and 157 Movie 5-3; and masterbatch T1O2 (commercially available from Ampacet Corporation) was used in Film 5-1, Film 5-2, and Film 5-3. Also as shown later in Table 8, Comparatives 5A-5D were formed from EXCEED™ 1018 polyethylene (melt index: 1.0 g / 10 min at 2.16 kg and 190°C, density: 0.918 g / cm3, available commercially from ExxonMobil), AGILITY™ 1200 polyethylene (melt index: 0.25 g / 10 min at 2.16 kg and 190°C, density: 0.919 g / cm3, commercially available from The Dow Chemical Company ), DMDH 6400 polyethylene (melting index: 0.80 g / 10 min at 2.16 kg and 190°C, density: 0.961 g / cm3, commercially available from The Dow Chemical Company), bimodal PEI, PE2 bimodal and TÍO2 masterbatch (commercially available from Ampacet Corporation). To produce the sample films of Example 5, the materials in Table 8 were formed into films on an Alpine 7-layer blown film line. Extruder size was 6.35 cm (2.5 inches), die diameter was 19.98 cm (7.87 inches), die gap was 78.7 mils, blow ratio (BUR) was 1.75, temperature melting temperature was 236.66°C to 244.44°C (458°F to 472°F), exit speed was 113.39 kg / h (250 Ib / h), line speed was 17.06 mt / min ( 56 ft / min) (3-layer coex) and freeze line height 158 (FLH) was 91.44 cm (36 inches). The structure and layer distribution of the multilayer films of Example 5 are given as follows in Table 8. Table 8. Structure and distribution of layers of Films and Comparisons of Example 5. Sample Total thickness Structure Outer layer (A) 25% by weight Central layer 50% by weight Outer layer B 25% by weight Comp. 5-A 4.0 mils EXCEED™ 1018 (95% by weight) AGILITY™ 1200 (5% by weight) EXCEED™ 1018 (37% by weight) DMDH 6400 (56% by weight) T1O2 (7% by weight) EXCEED™ 1018 (95% by weight) AGILITY™ 1200 (5% by weight) Comp. 5-B 4.0 mils PE1 bimodal (95% by weight) AGILITY™ 1200 (5% by weight) PE1 bimodal (37% by weight) DMDH 6400 (56% by weight) TÍO2 (7% by weight) PE1 bimodal (95% by weight) AGILITY™ 1200 (5% by weight) Comp. 5-C 4.0 mils PE2 bimodal (95% by weight) AGILITY™ 1200 (5% by weight) PE2 bimodal (63% by weight) DMDH 6400 (30% by weight) T¡O2 (7% by weight) PE2 bimodal ( 95% by weight) AGILITY™ 1200 (5% by weight) Comp. 5-D 4.23 mils EXCEED™ 1018 (95% by weight) AGILITY™ 1200 (5% by weight) EXCEED™ 1018 (37% by weight) DMDH 6400 (56% by weight) T¡O2 (7% by weight) EXCEED ™ 1018 (95% by weight) AGILITY™ 1200 (5% by weight) Film Comp. of PE 4 Comp. of PE 4 (63% by weight) Comp. of PE 4 (95% in 160 ΜΛ / D Film 5-1 747 9.2 773 Film 5-2 702 10.5 470 Film 5-3 1014 14.0 713 As shown in Table 9, Movie 5-3 exhibited the highest dart, followed by Movie 5-1 and Movie 5-2. Additionally, Movie 5-1, followed by Movie 5-2, Comparative 5-A, and Movie 5-3, exhibited the lowest tensile creep properties. Therefore, the results in Table 9 show that such embodiments described herein, which include a core layer incorporating the polyethylene composition described herein, can provide unexpected superior tensile creep and dart impact resistance properties. compared to multilayer films that include core layers comprising other polyolefins. Example 6: Evaluation of the use of the described polyethylene composition in the core layer to reduce or eliminate the need for polyamide Example 6 compares two multilayer film samples prepared according to some embodiments described herein (Film 6-1 and Film 6-2) with samples 161 comparisons of multilayer films (Comparative 6-A, Comparative 6-B, Comparative 6-C and Comparative 6-D). For all samples produced and evaluated in Example 6, the multilayer films had three layers, including two outer layers and a core layer. In the outer layers of all samples evaluated in Example 6, the LDPE material used, the weight percentage of the LDPE material in the outer layers, the HDPE material used and the weight percentage of the HDPE material in the layers externals remained constant. To observe the effect of using the described polyethylene compositions in the core layer and outer layers, the ratio of polyethylene to HDPE in the core layer was varied in an attempt to maintain a similar film density across the samples. To produce the films of Example 6, materials in the amounts listed in Tables 10 and 11 were formed into blown films on an Alpine 7-layer coextrusion blowing line. Blown film line parameters included a 9.84 mil die, a 78.7 mil die gap, a BUR of 2.5:1, a speed of 158.75 kg / h (350 Ib / h), a die temperature of approximately 232.22°C (450°F), a melting temperature of 226.11°C to 258.33°C (439°F to 497°F) (depending on the material being extruded), and an actual speed of 11.3 lb / h / in. As shown in Table 10, there was a 162 reference structure that included polyamide (nylon). Materials used to produce Comparative 6-A included bimodal PEI, ELITE™ 5960 polyethylene (melt index: 0.85 g / 10 min at 2.16 kg and 190°C, density: 0.962 g / cm3, commercially available from The Dow Chemical Company), and DOW LDPE 1321 (melt index: 0.25 g / 10 min at 2.16 kg and 190°C, density: 0.921 g / cm3, commercially available from The Dow Chemical Company), resin Bynel 41E710 anhydride modified LLDPE (melting index: 1.2 g / 10 min at 2.16 kg and 190°C, density: 0.862 g / cm3, commercially available from The Dow Chemical Company) and Ultramid C40L polyamide (available in trade through BASF). The structure and layer distribution of Comparative 6-A is provided in Table 10. Table 10, Structure and distribution of layers of Comparative 6-A with polyamide. Sample Structure Thickness: 76.1 pm Outer layer (A) Thickness: 27.4 pm Co-extrusion adhesive thickness: 4.6 pm Central layer Thickness: 6 pm Co-extrusion adhesive thickness: 4.6 pm Outer layer B Thickness: 33.5 pm Comp. 6-A PE1 bimodal (50% by weight) LDPE 1321 (35% by weight) ELITE™ 5960 (15% by weight) PE1 bimodal (85% by weight) Bynel 41E710 (15% by weight) Ultramid C40L PE1 bimodal (85 % by weight) Bynel 41E710 (15% by weight) PE1 bimodal (65% by weight) LDPE 1321 (35% by weight) 163 Film 6-1 and Film 6-2 are examples of multilayer films according to some embodiments described herein. As shown later in Table 11, Polyethylene Composition 2 (PE Comp. 2), prepared according to Example 1A, was used in Film 6-1; Polyethylene Composition 3 (PE Comp. 3), prepared according to Example 1A, was used in Movie 6-2. Films 6-1 and 6-2 also included bimodal PEI, ELITE™ 5960 polyethylene (melt index: 0.85 g / 10 min at 2.16 kg and 190°C, density: 0.962 g / cm3, commercially available from The Dow Chemical Company), DOW LDPE 1321 (melt index: 0.25 g / 10 min at 2.16 kg and 190°C, density: 0.921 g / cm3, commercially available from The Dow Chemical Company) and a composition of polyethylene (melting index: 0.85 g / 10 min at 2.16 kg and 190°C, density: 0.925 g / cm3, bimodal PE3). Bimodal PE3 is a polyethylene composition that is generally prepared with the catalyst system and processes provided for preparing the first compositions of PCT publication no. WO 2015 / 200743. Also as shown later in Table 11, the following materials were used in Comparative 6-B, Comparative 6-C and Comparative 6-D: bimodal PEI (melt index: 0.85 g / 10 min at 2.16 kg and 190°C, density: 0.918 g / cm3, commercially available from The Dow Chemical 164 Company), ELITE™ 5960 polyethylene (melting index: 0.85 g / 10 min at 2.16 kg and 190°C, density: 0.962 g / cm3, commercially available from The Dow Chemical Company), DOW LDPE 1321 (melting index: melting point: 0.25 g / 10 min at 2.16 kg and 190°C, density: 0.921 g / cm3, commercially available from The Dow Chemical Company) and Comparative Composition C (Comp. C of Ex. 2) of Example 2. The structures of the films produced in Example 6 are provided below: Table 11. Structure and distribution of layers of Comparatives and Films of Example 6 without polyamide. Sample Structure Thickness: 76.1 pm External layer (A) Thickness: 22.8 pm Central layer Thickness: 30.5 pm External layer B Thickness: 22.8 pm Comp. 6-B PE1 bimodal (50% by weight) LDPE 1321 (35% by weight) ELITE™ 5960 (15% by weight) PE1 bimodal (48% by weight) ELITE™ 5960 (52% by weight) PE1 bimodal (65% by weight) LDPE 1321 (35% by weight) Comp. 6-C Comp. C of Ex. 2 (50% by weight) LDPE 1321 (35% by weight) ELITE™ 5960 (15% by weight) Comp. C of Ex. 2 (48% by weight) ELITE™ 5960 (52% by weight) Comp. C of Ex. 2 (65% by weight) LDPE 1321 (35% by weight) Comp. 6-D PE3 bimodal (50% by weight) LDPE 1321 (35% by weight) ELITE™ 5960 (15% by weight) PE3 bimodal (74% by weight) ELITE™ 5960 (26% by weight) PE3 bimodal (65% by weight) LDPE 1321 (35% by weight) Film inv. 6-1 Comp. of PE 2 (50% by weight) LDPE 1321 (35% by weight) ELITE™ 5960 (15% by weight) Comp. of PE 2 (88% by weight) ELITE™ 5960 (12% by weight) Comp. of PE 2 (65% by weight) LDPE 1321 (35% by weight) Film inv. Comp. of PE 3 (50% in Comp. of PE 3 (88% in Comp. of PE 3 (65% in 165 6-2 wt) LDPE132I (35 wt%) ELITE™ 5960 (15 wt%) ELITE™ 5960 (12 wt%) LDPE 1321 (35 wt%) The properties of the multilayer films of Example 6 were measured according to the test methods described herein, and the properties are provided in Table 12. Table 12. Properties of the multilayer films of Example 6. Sample Dart (g) Module (MD, psi) Comp. 6-A 432 36183.63 Comp. 6-B 338 46932.60 Comp. 6-C 267 46093.99 Comp. 6-D 324 50972.51 Movie inv. 6-1 446 51184.92 Movie inv. 6-2 396 52705.08 As shown in Table 12, Movie 6-1 exhibited the highest dart, followed by Comparative 6-A and Movie 6-2. Furthermore, Movie 6-2, followed by Movie 6-1, exhibited the highest modulus, while Comparative 6-A exhibited the lowest modulus. Therefore, the results in Table 12 show that the embodiments described herein, which include a core layer incorporating the polyethylene composition described herein and no polyamide core layer, can provide an unexpected balance of strength properties. to impact by dart 6 and tensile creep compared to multilayer films that include core layers comprising other polyolefins or polyamides. It will be evident that there is the possibility of making modifications and variations without departing from the scope of the description defined in the attached claims. More specifically, although some aspects of the present disclosure are identified herein as preferred or particularly advantageous, it is contemplated that the present disclosure is not necessarily limited to these aspects. It is stated that in relation to this date, the best method known to the applicant to put the aforementioned invention into practice is the one that is clear from the present description of the invention.

Claims

1. A multilayer film characterized in that it comprises: a first layer comprising: a polyethylene composition comprising: (a) a first polyethylene fraction having a single peak in a temperature range of 45°C to 87°C in an elution profile through the enhanced comonomer composition distribution analysis (iCCD) method, wherein an area of ​​the first polyethylene fraction is an area in the elution profile below the single peak of the first polyethylene fraction between 45°C and 87°C; and (b) a second polyethylene fraction having a single peak in a temperature range of 95°C to 120°C in the elution profile through the iCCD analysis method, wherein an area of ​​the second polyethylene fraction is an area in the elution profile below the single peak of the second polyethylene fraction between 95°C and 120°C. where the polyethylene composition has a density of 0.924 g / cm3 to 0.936 g / cm3 and a melt index (I2) of 0.25 g / 10 minutes to 2.0 g / 10 minutes, wherein the area of ​​the first polyethylene fraction comprises at least 40% of the total area of ​​the elution profile, wherein the ratio of the area of ​​the first polyethylene fraction to the area of ​​the second polyethylene fraction is from 0.75 to 2.5, and wherein the width of the single peak of the second polyethylene fraction at a peak height of 50 percent is less than 5.0°C; a second layer comprising a first polyolefin; and a third layer comprising a second polyolefin; wherein the first layer is placed between the second layer and the third layer; and wherein the first polyolefin and the second polyolefin are the same or different.

2. The multilayer film according to claim 1, characterized in that the first polyolefin composition, the second polyolefin composition, or both comprise a polyethylene having a density of 0.870 g / cm3 to 0.970 g / cm3.

3. The multilayer film according to claims 1-2, characterized in that: the first layer is in direct contact with the second and third layers; and the second and third layers are the outermost layers of the multilayer film.

4. The multilayer film according to claims 1-3, characterized in that the polyethylene composition has a density of 0.924 g / cm3 to 0.936 g / cm3, has a zero shear viscosity ratio of less than 3.0 and a molecular weight distribution, expressed as the ratio of weight average molecular weight to number average molecular weight (Mw / Mn), in the range of 2.5 to 8.

0.

5. The multilayer film according to claims 1-4, characterized in that it has a thickness of less than 500 micrometers (µm).

6. The multilayer film according to claims 1-5, characterized in that the first layer further comprises a polyethylene having a density greater than 0.940 g / cm3, when measured according to ASTM 742.

7. A multilayer film characterized in that it comprises: a first layer, wherein the first layer comprises from 10% by weight to 80% by weight of the total weight of the multilayer film, the first layer comprising: a polyethylene composition comprising: (a) a first polyethylene fraction having a single peak in a temperature range of 45°C to 87°C in an elution profile through the enhanced comonomer composition distribution (iCCD) analysis method, wherein an area of ​​the first polyethylene fraction is an area in the elution profile below the single peak of the first polyethylene fraction between 45°C and 87°C; and (b) a second polyethylene fraction having a single peak in a temperature range of 95°C to 120°C in the elution profile through the iCCD analysis method and wherein an area of ​​the second polyethylene fraction is an area in the elution profile below the single peak of the second polyethylene fraction between 95°C and 120°C.wherein the polyethylene composition has a density of 0.924 g / cm3 to 0.936 g / cm3 and a melt index (I2) of 0.25 g / 10 minutes to 2.0 g / 10 minutes, wherein the area of ​​the first polyethylene fraction comprises at least 40% of the total area of ​​the elution profile, wherein the ratio of the area of ​​the first polyethylene fraction to the area of ​​the second polyethylene fraction is 0.75 to 2.5, and wherein the width of the single peak of the second polyethylene fraction at a peak height of 50 percent is less than 5.0°C; a second layer comprising a first linear low-density polyethylene having a density of 0.910 to 0.936 g / cm3; and a third layer comprising a second linear low-density polyethylene having a density of 0.910 to 171 0.936 g / cm3; wherein the first layer is placed between the second and third layers; and wherein the first linear low-density polyethylene and the second linear low-density polyethylene are the same or different.

8. The multilayer film according to claim 7, characterized in that it has a dart drop impact of at least 400 grams when measured according to ASTM D1709, method B.

9. The multilayer film according to claims 7-8, characterized in that it has an average secant modulus in one machine direction of 199.94 MPa (29,000 psi) to 255.10 MPa (37,000 psi), wherein the average secant modulus is measured in accordance with ASTM D882.

10. A multilayer film characterized in that it comprises: a first layer comprising: a high-density polyethylene composition having a density of 0.940 g / cm3 to 0.970 g / cm3, when measured in accordance with ASTM 742; and a polyethylene composition comprising: (a) a first polyethylene fraction having a single peak in a temperature range of 45°C to 87°C in an elution profile through the enhanced comonomer composition distribution (iCCD) method of analysis, wherein an area of ​​the first polyethylene fraction is an area in the elution profile below the single peak of the first polyethylene fraction between 45°C and 87°C; and (b) a second polyethylene fraction having a single peak in a temperature range of 95°C to 120°C in the elution profile through the iCCD method of analysis, wherein an area of ​​the second polyethylene fraction is an area in the elution profile below the single peak of the second polyethylene fraction between 95°C and 120°C. where the polyethylene composition has a density of 0.924 g / cm3 to 0.936 g / cm3 and a melt index (I2) of 0.25 g / 10 minutes to 2.0 g / 10 minutes, wherein the area of ​​the first polyethylene fraction comprises at least 40% of the total area of ​​the elution profile, wherein the ratio of the area of ​​the first polyethylene fraction to the area of ​​the second polyethylene fraction is from 0.75 to 2.5, and wherein the width of the single peak of the second polyethylene fraction at a peak height of 50 percent is less than 5.0°C; a second layer comprising at least 50% by weight of a first linear low-density polyethylene based on the total weight of the second layer, wherein the first linear low-density polyethylene has a density of 0.910 g / cm3 to 0.936 g / cm3; and a third layer comprising at least 50% by weight of a second linear low-density polyethylene based on the total weight of the second layer, wherein the second linear low-density polyethylene has a density of 0.910 g / cm3 to 0.936 g / cm3; wherein the first layer is placed between the second and third layers; and wherein the first linear low-density polyethylene and the second linear low-density polyethylene are the same or different.

11. The multilayer film according to claim 10, characterized in that it can have a tensile creep in a transverse direction of less than 50% at 1.4 kg / 50°C / 5 h, when measured according to ASTM 2990.

12. The multilayer film according to claims 10-11, characterized in that it has a dart drop impact of at least 600 grams when measured according to ASTM D1709, method B.

13. A multilayer film characterized in that it comprises: a first layer comprising: a first polyethylene having a density of 0.940 g / cm3 to 0.970 g / cm3; and a first polyethylene composition having a density of 0.924 g / cm3 to 0.936 g / cm3; a second layer comprising: a second polyethylene having a density of 0.940 g / cm3 to 0.970 g / cm3; a first low-density polyethylene having a density of 0.916 g / cm3 to 0.935 g / cm3; and a second polyethylene composition having a density of 0.924 g / cm3 to 0.936 g / cm3; and a third layer comprising: a second low-density polyethylene having a density of 0.916 g / cm3 to 0.935 g / cm3; and a third polyethylene composition having a density of 0.924 g / cm3 to 0.936 g / cm3; and wherein: the first layer is placed between the second layer and the third layer; the first polyethylene and the second polyethylene are the same or different;the first low-density polyethylene and the second low-density polyethylene are the same or different; the first polyethylene composition, the second polyethylene composition, and the third polyethylene composition are the same compositions or different compositions and each comprises: (a) a first polyethylene fraction having a single peak in a temperature range of 45°C to 87°C in an elution profile through the enhanced comonomer composition distribution analysis (iCCD) method, wherein an area of ​​the first polyethylene fraction is an area in the elution profile below the single peak of the first polyethylene fraction between 45°C and 87°C;and (b) a second polyethylene fraction having a single peak in a temperature range of 95°C to 120°C in the elution profile through the iCCD analysis method and wherein an area of ​​the second polyethylene fraction is an area in the elution profile below the single peak of the second polyethylene fraction between 95°C and 120°C; wherein the polyethylene composition has a density of 0.924 g / cm3 to 0.936 g / cm3 and a melting index (I2) of 0.25 g / 10 minutes to 2.0 g / 10 minutes, wherein the area of ​​the first polyethylene fraction comprises at least 40% of the total area of ​​the elution profile, wherein the ratio of the area of ​​the first polyethylene fraction to the area of ​​the second polyethylene fraction is 0.75 to 2.5, and wherein the width of the single peak of the second polyethylene fraction at a peak height of 50 percent is less than 5.0°C.

14. The multilayer film according to claim 13, characterized in that it has a dart drop impact of at least 350 grams when measured from 176 in accordance with ASTM D1709, method B.

15. The multilayer film according to claims 13-14, characterized in that it has an average secant modulus in a machine direction greater than 344.73 MPa (50,000 psi), wherein the average secant modulus is measured in accordance with ASTM D882.