Amorphous polyαolefin-containing polyolefin blend

Abstract

To provide a blend capable of producing injection molded parts with a modulated balance of strength and impact resistance.SOLUTION: The present invention provides a blend containing at least two different polyolefins and further comprising, as an additional constituent, an amorphous poly-α-olefin which is based on the monomers ethene, propene, and 1-butene and has a viscosity at 190°C of 200 mPa s to 200,000 mPa s, wherein the blend contains polyethylene and polypropylene as the at least two different polyolefins, and wherein the polyethylene has a melt flow index [MFI 2.16 kg@190°C] determined according to the method ISO 1133 of less than 10 g / 10 min, preferably of 0.01 to 2 g / 10 min, and the polypropylene has a melt flow index [MFI 2.16 kg@230°C] determined according to a specified method of 50 g / 10 min, preferably of 0.01 to 25 g / 10 min. A process for producing such blends and the use thereof are also provided.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a composition comprising at least two different polyolefins, based on the monomers ethene, propene, 1 -butene, and having a viscosity at 190 °C measured according to the method described in the specification of 2 00 mPa·s to 200000 mPa·s, further comprising as a component an amorphous poly-α-olefin, and as at least two different polyolefins, a blend comprising polyethylene and polypropylene, wherein the polyethylene has a melt flow index [MFI2.16 kg@190 °C] measured according to the method described in the specification of less than 10 g / 10 min, preferably 0.01 to 2 g / 10 min, and the polypropylene has a melt flow index [MFI2.16 kg@ 230 °C] measured according to the method described in the specification of 50 g / 10 min, preferably 0.01 to 25 g / 10 min, a method for producing such a blend, and its use.

Background Art

[0002] Polyolefins, especially homopolymers and copolymers of the group of polyethylene, polypropylene, polybutene, form the largest group among commonly used plastics and record the largest production volume in the world. The substantial application fields of these materials are very diverse injection molded parts such as films, packaging, and for automobile manufacturing. Especially in automobile manufacturing, it is important to produce these injection molded parts with an appropriate balance of strength and impact resistance in order to ensure the best usability in daily use.

[0003] To ensure this balance, a mixture consisting of a component aimed at ensuring strength (usually crystalline polypropylene) and another component aimed at ensuring impact resistance (often a component rich in polyethylene) is generally used. The latter component is often rubbery and sticky. Therefore, part of the equipment becomes sticky, and the mixture can no longer be processed, so the proportion of this component during the manufacturing process cannot be increased as desired. To improve the quality of heterophasic polymer mixtures, especially those consisting of polyethylene and polypropylene, additives are often used to compatibilize the polypropylene matrix with a soft impact-absorbing polyethylene-rich fraction, which has a crystal structure responsible for strength. Patent Document 1 describes a synergistic composite composition containing a random ethylene / propylene copolymer and a low-density to ultra-low-density random ethylene / α-olefin copolymer, where the α-olefin has at least 4 carbon atoms. It further relates to a polyolefin composition, especially a polypropylene composition, containing the composite composition. The MFI of the random ethylene / α-olefin copolymer is 0.1 to 30 dg / min. Patent Document 2 describes the use of a C3-C2-block copolymer with an MFI of 30 dg / min or less and a styrene-ethylene-butylene-styrene (SEBS) rubber component.

[0004] Patent Document 3 is related to the reaction of ethylene with an α-olefin having 3 to 10 carbon atoms.

[0005]

[0006]

[0007] It describes a polymer composition containing 1 to 30% by weight of the copolymers thus obtained. The copol ymer has an MFI of 100 to 2000 dg / min and a molecular weight distribution (MWD) of 1 to 5.

[0008] Patent Document 4 describes the production of polyolefin (PP or HDPE)-based "impact-resistant modified" mixtures using ethylene-α-olefin copolymers with an MWD far below 5.

[0009] Patent Document 5 describes a gas-phase method for producing C2-C3 copolymers with a maximum MFI of 500, and mentions the fact that the material is obtained in a "non-sticky" state downstream of the gas-phase reactor. Furthermore, it is described that the high rubber content in the method is a problem.

[0010] Recently, there has been a further need to be able to process polypropylene and / or polyethylene-containing recycled materials into mixtures having material properties similar to those obtained using virgin polyethylene and / or polypropylene.

Prior Art Documents

Patent Documents

[0011]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0012] Therefore, the problem to be solved by the present invention is to solve one or more of the above problems by providing a polyolefin formulation.

MEANS FOR SOLVING THE PROBLEMS

[0013] Surprisingly, a formulation containing at least two different polyolefins and, as additional components, monomers based on ethene, propene, and 1-butene and having a viscosity at 190 °C of 200 mPa·s to 200,000 mPa·s of amorphous poly-α-olefin was found to solve one or more of the above problems.

[0014] Therefore, the present invention comprises at least two different polyolefins, is based on the monomers ethene, propene, 1-butene, and has a viscosity at 190 °C measured according to the method described in the section on the measurement method of 200 mPa·s to 2 00,000 mPa·s of amorphous poly-α-olefin (APAO) as a further component, is a formulation comprising polyethylene and polypropylene as at least two different polyolefins, wherein the polyethylene has a melt flow index [MFI2.16 kg@190 °C] measured according to the method described in the specification of less than 10 g / 10 min, preferably 0.01 to 2 g / 10 min, and the polypropylene has a melt flow index measured according to the method described in the specification​​​​ The formulation with an MFI of 2.16 kg @ 230 °C of 50 g / 10 min, preferably 0.01 to 25 g / 1 10 min is provided. It is what provides.

[0015] The present invention further provides a method for producing a formulation according to the present invention, as defined in the claims and more specifically described below, and its use. It is what provides.

[0016] The formulation according to the present invention has the advantage of having improved material properties. The formulation according to the present invention In particular, when the tensile strength is moderately reduced, it exhibits good / improved impact resistance and also good / improved expansion behavior. A further advantage of the formulation according to the present invention is that when polyethylene and polypropylene are present as different polyolefins, the formulation exhibits good compatibility between polyethylene and polypropylene. It is a point.

[0017] By using APAO, the formulation according to the present invention can contain a larger amount of recycled materials, particularly polyethylene and propylene recycled materials, without deteriorating the material properties to the extent that the material can no longer be used for the intended purpose. It can also contain or / and propylene recycled materials.

[0018] The separation of polymer waste is often not yet possible by a single type of method at present. For example, recycled PE still contains a small amount of PP polymer, and recycled PP still contains a small amount of PE polymer. In particular, the use according to the invention of APAO is particularly advantageous for formulations containing such non-uniform recycled materials. In particular, for formulations containing such non-uniform recycled materials, the use according to the invention of APAO is particularly advantageous. It is particularly advantageous.

[0019] The formulation according to the present invention, the method according to the present invention, and the use according to the present invention of the formulation are the present Without intending to limit the invention to these exemplary embodiments, the following examples are used for illustration. When ranges, general formulas, or groups of compounds are defined below, these include not only the corresponding ranges or groups of compounds explicitly mentioned, but also all sub-ranges and subgroups of compounds obtainable by excluding individual values (ranges) or compounds. When documents are cited in the context of this specification, their contents shall form part of the disclosure of the present invention, in particular with respect to the matters specifically mentioned. When numerical values are reported below as percentages, these are, unless otherwise specified, weight percentages. When averages, such as molar mass averages, are reported below, these are, unless otherwise specified, numerical averages. When material properties, such as viscosities, are reported below, these are, unless otherwise specified, material properties at 25 °C. When chemical (experimental) formulas are used in the present invention, the reported indices may be either absolute numbers or average values. In the case of high molecular weight compounds, the indices preferably represent average values. The formulations according to the invention comprising at least two different polyolefins further comprise, as additional constituent components, an amorphous poly-α-olefin based on the monomers ethene, propene, and 1-butene and having a viscosity at 190 °C measured according to the method reported in the paragraph on the measurement method below of 200 mPa·s to 200 000 mPa·s, preferably 1000 to 150 000 mPa·s, more preferably 2000 to 100 000 mPa·s, and particularly preferably 3000 to 500 00 mPa·s. The amorphous poly-α-olefin is, as at least two different polyolefins, characterized in that it is included.

[0020] ​​​​​​​ It contains polyethylene and polypropylene, and the polyethylene has a melt flow index [MFI2.1 6kg@190℃] measured according to the ISO 1133 method reported herein of less than 10 g / 10 min, preferably 0.01 to 2 g / 10 min, and the polypropylene has a melt flow index [MFI2.1 6kg@230℃] measured according to the method reported herein of less than 50 g / 10 min, preferably 0.01 to 25 g / 10 min. As at least two different polyolefins, the composition according to the present invention preferably contains polyethylene and polypropylene. The proportion of the minor polyolefin in the composition is preferably 1 wt% to 45 wt%, more preferably 2 wt% to 30 wt%, particularly preferably 5 wt% to

[0021] 20 wt%, based on the total mass of at least two different polyolefins present in the composition, and the proportion of the major polyolefin in the composition is preferably 55 wt% to 9 9 wt%, more preferably 70 wt% to 98 wt%, particularly preferably 80 wt% to 95 wt%. The above proportions are particularly preferable when at least a part or all of the at least two different polyolefins are recycled materials. It is advantageous if at least one of the two different polyolefins is at least partially, preferably more than 50 wt%, more preferably all, recycled materials. It is preferable if both of the at least two different polyolefins are at least partially, preferably more than 50 wt%, more preferably all, recycled materials.

[0022]

[0023] ​​​​​​ The proportion of the amorphous poly-α-olefin in the formulation according to the present invention is preferably 1% to 25% by weight, more preferably 2% to 15% by weight, with respect to the total mass of the formulation, particularly preferably 3% to 10% by weight, and very particularly preferably 5% to 7.5% by weight. There is.

[0024] The amorphous poly-α-olefin preferably has a polydispersity (Mw / Mn) of 5 to 1 0 and / or a glass transition temperature of -45°C to -25°C, and in both cases, it is measured according to the measurement method reported in the following measurement method paragraph.

[0025] The amorphous poly-α-olefin preferably has a melt flow index [MF I2.16kg@140°C] of 40 to 10,000, preferably 50 to 5,000, more preferably 100 to 2,000, and is measured according to the measurement method reported in the following measurement method paragraph.

[0026] In the amorphous poly-α-olefin based on the monomers ethylene, propylene, and 1-butene, the proportion of the monomer propylene or 1-butene is more than 50% by weight, preferably 51% to 98% by weight, and the total proportion of the remaining monomers ethylene and 1-butene, or ethylene and propene, is less than 50% by weight, and in both cases, it is a value relative to the total proportion of ethylene, propylene, and 1-butene. The proportion of ethylene is preferably 1% to 15% by weight with respect to the total of the monomers ethylene, propylene, and 1-butene. 1-butene.

[0027] An amorphous poly-α-olefin may have an isotacticity of less than 80% in terms of the mmmm-pentad fraction measured according to the measurement method reported herein for the 1-butene or propene block. Regarding tacticity, it may be advantageous if it is less than 80% in terms of the mmmm-pentad fraction measured according to the measurement method reported herein. The composition is preferably a mixture of the described components, more preferably a pellet mixture of the described component pellets. It may be advantageous if the composition is in the form of a mixed pellet material in which each pellet contains all the components. Such a mixed pellet material has the following advantages: By processing the material, for example, by injection molding, components can be provided with a more uniform distribution, resulting in better material properties.

[0028] The composition according to the present invention may contain additional components such as, for example, additives, fillers, and / or pigments (organic or inorganic). The composition according to the present invention preferably contains fibers, more preferably glass fibers, mineral fibers, wood fibers, or other fiber components as fillers. This can increase the strength of the composition according to the present invention. As a result, the composition can be employed or used in applications that impose high mechanical requirements on the materials used, such as, for example, when used as a compound or composite material or for manufacturing them. The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition is preferably a mixture of the described components, more preferably a pellet mixture of the described component pellets. It may be advantageous if the composition is in the form of a mixed pellet material in which each pellet contains all the components. Such a mixed pellet material has the following advantages: By processing the material, for example, by injection molding, components can be provided with a more uniform distribution, resulting in better material properties. The composition according to the present invention may contain additional components such as, for example, additives, fillers, and / or pigments (organic or inorganic). The composition according to the present invention preferably contains fibers, more preferably glass fibers, mineral fibers, wood fibers, or other fiber components as fillers. This can increase the strength of the composition according to the present invention. As a result, the composition can be employed or used in applications that impose high mechanical requirements on the materials used, such as, for example, when used as a compound or composite material or for manufacturing them. The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition according to the present invention may contain additional components such as, for example, additives, fillers, and / or pigments (organic or inorganic). The composition according to the present invention preferably contains fibers, more preferably glass fibers, mineral fibers, wood fibers, or other fiber components as fillers. This can increase the strength of the composition according to the present invention. As a result, the composition can be employed or used in applications that impose high mechanical requirements on the materials used, such as, for example, when used as a compound or composite material or for manufacturing them. The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition according to the present invention may contain additional components such as, for example, additives, fillers, and / or pigments (organic or inorganic). The composition according to the present invention preferably contains fibers, more preferably glass fibers, mineral fibers, wood fibers, or other fiber components as fillers. This can increase the strength of the composition according to the present invention. As a result, the composition can be employed or used in applications that impose high mechanical requirements on the materials used, such as, for example, when used as a compound or composite material or for manufacturing them. The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine).

[0029] The composition according to the present invention may contain additional components such as, for example, additives, fillers, and / or pigments (organic or inorganic). The composition according to the present invention preferably contains fibers, more preferably glass fibers, mineral fibers, wood fibers, or other fiber components as fillers. This can increase the strength of the composition according to the present invention. As a result, the composition can be employed or used in applications that impose high mechanical requirements on the materials used, such as, for example, when used as a compound or composite material or for manufacturing them. The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition according to the present invention may contain additional components such as, for example, additives, fillers, and / or pigments (organic or inorganic). The composition according to the present invention preferably contains fibers, more preferably glass fibers, mineral fibers, wood fibers, or other fiber components as fillers. This can increase the strength of the composition according to the present invention. As a result, the composition can be employed or used in applications that impose high mechanical requirements on the materials used, such as, for example, when used as a compound or composite material or for manufacturing them. The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition according to the present invention may contain additional components such as, for example, additives, fillers, and / or pigments (organic or inorganic). The composition according to the present invention preferably contains fibers, more preferably glass fibers, mineral fibers, wood fibers, or other fiber components as fillers. This can increase the strength of the composition according to the present invention. As a result, the composition can be employed or used in applications that impose high mechanical requirements on the materials used, such as, for example, when used as a compound or composite material or for manufacturing them. The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition according to the present invention may contain additional components such as, for example, additives, fillers, and / or pigments (organic or inorganic). The composition according to the present invention preferably contains fibers, more preferably glass fibers, mineral fibers, wood fibers, or other fiber components as fillers. This can increase the strength of the composition according to the present invention. As a result, the composition can be employed or used in applications that impose high mechanical requirements on the materials used, such as, for example, when used as a compound or composite material or for manufacturing them. The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition according to the present invention may contain additional components such as, for example, additives, fillers, and / or pigments (organic or inorganic). The composition according to the present invention preferably contains fibers, more preferably glass fibers, mineral fibers, wood fibers, or other fiber components as fillers. This can increase the strength of the composition according to the present invention. As a result, the composition can be employed or used in applications that impose high mechanical requirements on the materials used, such as, for example, when used as a compound or composite material or for manufacturing them. The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition according to the present invention may contain additional components such as, for example, additives, fillers, and / or pigments (organic or inorganic). The composition according to the present invention preferably contains fibers, more preferably glass fibers, mineral fibers, wood fibers, or other fiber components as fillers. This can increase the strength of the composition according to the present invention. As a result, the composition can be employed or used in applications that impose high mechanical requirements on the materials used, such as, for example, when used as a compound or composite material or for manufacturing them. The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). The composition preferably contains at least one antioxidant in an amount of 0.01% to 3% by weight based on the total of APAO and the antioxidant. Antioxidants that can be used include all substances known as antioxidants and / or inhibitors, i.e., substances that stop the propagation of free radical reactions. The composition according to the present invention contains sterically hindered amines (e.g., piperidine). derivatives), more preferably a sterically hindered phenol (e.g., Irganox 1010, Nau gard XL1, Songnox 1035). This can prevent or reduce the decomposition of PAO and / or the yellowing of APAO.

[0030] The formulation preferably contains at least one free radical forming agent decomposition product in an amount of 0.01% to 3% by weight, based on the total of APAO and the free radical forming agent decomposition product. The formulation according to the present invention preferably contains benzoic acid, methanol, butanol, tert -butanol, propionic acid, and / or, preferably or, 2,5-dimethyl hexanol as the free radical forming agent decomposition product.

[0031] The formulation according to the present invention may be produced by a known formulation production method. The formulation according to the present invention is preferably produced by the formulation production method described below, which comprises mixing the components of the formulation.

[0032] In the method according to the present invention, the components are preferably used and mixed as powders or pellets. The pellet mixture thus obtained may advantageously be processed into a mixed pellet material, for example by extruding the pellet mixture. Therefore, before subjecting this added pellet material to further processing operations, the pellet mixture may be applied, for example, by a mixing drum or using a hopper, and the pellets may be fed uniformly into a further pelletizing process in a mixing extruder. Alternatively, the components may be metered as a molten stream into an extruder leading to a forming process, using a series of extruders. ​​​​​​​​It is also possible. Further, using one of these processes, the final object to be processed (workpiece) can be directly manufactured without passing through the granular material. by extrusion or injection molding processes. It may be.

[0033] The method according to the present invention is advantageous when it has a step of manufacturing plastic products in packaging, films, injection molded parts, pipes, hoses, fibers, fibers, bottles, plastic housings, masterbatch compounds for improving pigment dispersion, automotive or transportation sectors. It may be.

[0034] The formulation according to the present invention / the formulation manufactured according to the present invention may be used in all applications where polyolefin formulations are commonly used. The formulation according to the present invention / the formulation manufactured according to the present invention is preferably employed or used as or for manufacturing plastic products in packaging, films, injection molded parts, pipes, hoses, textiles, fibers, bottles, plastic housings, masterbatch compounds for improving pigment dispersion, automotive or transportation sectors. plastic housings, masterbatch compounds for improving pigment dispersion, automotive or transportation sectors, or for manufacturing them. It is preferably the case.

[0035] Even without further details, it is assumed that those skilled in the art can utilize the above description to the maximum extent possible. Therefore, the preferred embodiments and examples should be construed as merely illustrative disclosures and should in no way be limiting. The subject matter of the present invention is more specifically described by FIGS. 1 and 2, but it is not intended that the subject matter of the present invention be limited thereto.

[0036] BRIEF DESCRIPTION OF THE DRAWINGS It is not intended that the subject matter of the present invention be limited thereto.

Brief Description of the Drawings

[0037]

Figure 1

Figure 2

Examples

[0038] The subject matter of the present invention will be described more specifically in the following examples, but it is not intended that the subject matter of the present invention be limited thereto. It is not intended that the subject matter of the present invention be limited thereto.

[0039] Measurement method Notched impact resistance: The notched impact resistance was measured in accordance with ISO 180 / 1A using a Zwick 5102.100 / 00 test apparatus. The notched impact resistance was measured in accordance with ISO 180 / 1A using a Zwick 5102.100 / 00 test apparatus.

[0040] Tensile test: The tensile test was prepared and carried out in accordance with EN ISO 527-1. A Zwick BT1-FB010TH.D30 test apparatus was used. A Zwick BT1-FB010TH.D30 test apparatus was used.

[0041] Optical determination of the region: The analytical instruments used were an Epson V850 Pro scanner and a JEOL SM IT300 scanning electron microscope (SEM). The analytical instruments used were an Epson V850 Pro scanner and a JEOL SM IT300 scanning electron microscope (SEM).

[0042] Glass transition temperature [Tg]: Thermal analysis was carried out in accordance with DIN EN ISO 11357. The Mettler Toledo DSC1 instrument was used, and the evaluation was carried out using STARe 10.0 software. In the case of semi-crystalline polymer samples, the influence of the thermal history was removed only when the entire sample was melted. Therefore, in the measurement of Tg, the specified heating rate was used. The Mettler Toledo DSC1 instrument was used, and the evaluation was carried out using STARe 10.0 software. In the case of semi-crystalline polymer samples, the influence of the thermal history was removed only when the entire sample was melted. Therefore, in the measurement of Tg, the specified heating rate was used. The influence of the thermal history was removed only when the entire sample was melted. Therefore, in the measurement of Tg, the specified heating rate was used. In order to obtain reproducible results with heating and cooling rates, another heating step is necessary. 1 A uniform heating rate from 0 K / min to Tg + 50 °C and a uniform cooling rate from 20 K / min to Tg - 50 °C should preferably be used. The glass transition temperature is the sample temperature at which half of the heat capacity change [0.5ΔcP] is achieved. This is the temperature at the intersection of the center line between the extrapolated baselines before and after the glass transition and the measurement curve.

[0043] Molecular weight measurement: Mw represents the weight-average molecular weight and Mn represents the number-average molecular weight. The molecular weights Mw and Mn are measured by HT-GPC [high-temperature gel permeation chromatography] as described in DIN 55 672. Specifically, the analytical HT-GPC is carried out at 150 °C using a PL220 oven (Agilent, Waldbronn) with an integrated isocratic pump. 1,2,4-Trichlorobenzene (TCB) (Merck, Darmstadt) spiked with about 1 g / L of butylhydroxytoluene (BHT) is used as the mobile phase with a flow rate of 1 mL / min, and one Agilent PLgel Olexis Guard (50×7.5 mm, precolumn) and three Agilent PLgel Olexis (300×7.5 mm) columns are used as the stationary phase. Detection is carried out using an IR detector (model IR4, PolymerChar, Valencia, Spain). The data set is evaluated using polystyrene calibration (EasiCal PS-1, Agilent) with WinGPC software (Polymer Standards Service, Mainz). ​​​​​​​​​​​​The polydispersity (Mw / Mn), also known as the molecular weight distribution, is obtained by dividing the weight-average molecular weight by the number-average molecular weight. by that of the number-average molecular weight.

[0044] Viscosity at 190 °C: The viscosity is measured at 190 °C with a rotational viscometer in accordance with DIN 53 019. The measurement is carried out using a Brookfield CAP 2000+ cone-plate viscometer with a shear rate-dependent viscosity according to Table a below.

[0045]

Table a

[0046] Calibration of the Brookfield viscometer was performed using a Newtonian standard sample of 500,000 BW. This was obtained from Zentrum fur Messen un d Kalibrieren & Analytik GmbH and is issued with an attached calibration certificate. Calibration of the instrument is performed when the DKD oil is replaced with DKD oil from ZMK & ANALYTIK GmbH. This is done using cone 7. First, an initial measurement of the new DKD oil is made. Subsequently, calibration of the instrument is performed. The Newtonian standard sample is weighed directly onto the spindle. This operation involves inverting the sample in a 100 mL Erlenmeyer flask and weighing it in an appropriate amount. Subsequently, the spindle is attached to the viscometer and lowered. After maintaining preheating for at least 3 minutes, press "Spindle" on the control panel and confirm with "Enter". For the prompt "Calibrate Yes / No (Ca ​​​"Librate YES / NO)" is displayed. Selecting "Yes" starts the calibration mode. Subsequently, enter and confirm the desired temperature and dynamic viscosity of the fluid (refer to the latest calibration certificate). The viscosity value must be entered in cP (cP = mPa·s). For the prompt "SPEED", enter 10 s-1 and confirm with "Enter". Then start the calibration with "Run". After calibration, save the calibration value with "Enter".

[0047] Melt Flow Index (MFI): Using a Zwick MFlow instrument, MFI 2.16 kg @ 230 °C and 2.16 kg @ 190 °C were measured in accordance with ISO 1133-1:2011. The Melt Mass Flow Rate (MFR) and Melt Volume Flow Rate (MVR) are measured by extruding the molten material from the cylinder of a plastometer through an extrusion die having a specific length and a specific diameter under specific temperature and load conditions. If the MFI value exceeds 1000 at a temperature of 190 °C and a load of 2.16 kg, it is necessary to lower the measurement temperature to 140 °C to obtain reliable measurement values (MFI 2.16 @ 140 °C).

[0048] To measure MFR (Method A), measure the area extruded in a specified time and use it to calculate the extrusion rate (g / 10 min). To measure MVR (Method B), plot the length of the path reached by the piston within a specified time, or the time required for the piston to reach a specified path length, and use it to calculate the extrusion rate (cm / 10 min). 3

[0049] If the density of the material melt at the test temperature is known, MVR can be converted to MFR, or vice versa.

[0050] Isotacticity The composition of the polymer and its isotacticity [mmmm-pentad fraction (%)] are measured by high-temperature 13C-NMR as described in the following publications: 13 A. Zambelli et al.: Macromolecules, 8, 687 (1975) and A. Filho, G. Galland: J. Appl. Polym. Sci., 80, 1880 (2001).

[0051] Experimental Examples

[0052]

Table 0

[0053]

Table b

[0054]

Table c

[0055] Experimental Example 1 A pellet mixture was prepared using the raw materials and amounts reported in Table 1. The mixing was carried out manually by adding all the components into a PE bag, and then the contents were poured into the funnel of a gravimetric system. Subsequently, the pellet mixture was processed into mixed pellet material using an extruder (Leistritz ZSE 27 MAXXX 4 4LD) at 210 °C and a speed of 300 rpm.

[0056]

Table 1

[0057] Subsequently, using this mixed pellet material, with an injection molding machine (Engel ES200 / 5 0HL), at an injection temperature of 230 °C, an injection pressure of 600 bar, and a cycle time of 45 seconds, a tensile test specimen (tensile test dumbbell) was produced in accordance with DIN EN ISO 527-2 for use.

[0058] Half of the tensile test dumbbells were used to measure notch impact resistance in accordance with IZOD ISO 180 / 1A, and the other half were used for tensile tests in accordance with EN ISO 527-1. The test results are shown in Table 2. In the table, E = tensile modulus, σ T = tensile strength, σ M = yield stress, σ Y = yield strain, ε Y = elongation at yield, ε tB = nominal breaking elongation, ε B = breaking elongation.

[0059]

Table 2

[0060] As is clear from Tables 1 and 2, when APAO is added to the PE / PP pellet mixture as an additive, a mixed pellet material can be obtained that has significantly better (higher) elongation behavior and better (higher) impact resistance, even with a slightly reduced tensile strength, and can be injection molded into molded products. This is particularly applicable to formulations containing at least one other amorphous or at least semi-crystalline polyolefin component in addition to APAO.

[0061] Experimental Example 2​​​​ The test pieces of Experimental Examples 1.11 and 1.12 were cooled in liquid nitrogen and in both cases were crushed in the longitudinal and transverse directions, sputtered with palladium, and then analyzed by SEM. Micrographs are shown in FIGS. 1 and 2. For the test pieces of Experimental Examples 1.11 and 1.12, the images show a number of smaller regions that appear more homogeneous in FIG. 2. Therefore, as also shown by the better mechanical properties of Experimental Example 1.12, the bonding is thought to be improved (Table 2). The micrographs are shown in FIGS. 1 and 2.

[0062] For the test pieces of Experimental Examples 1.11 and 1.12, the images show a number of smaller regions that appear more homogeneous in FIG. 2. Therefore, as also shown by the better mechanical properties of Experimental Example 1.12, the bonding is thought to be improved (Table 2). For the test pieces of Experimental Examples 1.11 and 1.12, the images show a number of smaller regions that appear more homogeneous in FIG. 2.

Claims

1. comprising at least two different polyolefins, based on the monomers ethene, propene, 1-butene, and having a viscosity at 190 °C of 200 mPa·s to 200000 mPa·s as measured according to the method described in the specification, further comprising an amorphous poly-α-olefin as a further component, wherein the at least two different polyolefins are a formulation comprising polyethylene and polypropylene, the polyethylene having a melt flow index [MFI 2.16 kg @ 190 °C] of less than 10 g / 10 min, preferably 0.01 to 2 g / 10 min, as measured according to the ISO 1133 method described in the specification, the polypropylene having a melt flow index [MFI 2.16 kg @ 230 °C] of 50 g / 10 min, preferably 0.01 to 25 g / 10 min, as measured according to the method described in the specification.

2. The formulation according to claim 1, wherein the at least two different polyolefins are a formulation comprising polyethylene and polypropylene.

3. The formulation according to claim 1 or 2, wherein at least one of the two different polyolefins is at least partially, preferably completely, a recycled material.

4. The formulation according to any one of claims 1 to 3, wherein the proportion of the amorphous poly-α-olefin is 1% to 25% by weight, preferably 2% to 15% by weight, particularly preferably 3% to 10% by weight, very particularly preferably 5% to 7.5% by weight, based on the total mass of the formulation.

5. The formulation according to any one of claims 1 to 4, wherein the proportion of the minor polyolefin in the formulation is 1% to 45% by weight, preferably 2% to 30% by weight, particularly preferably 5% to 20% by weight, based on the total mass of the at least two polyolefins, and the proportion of the major polyolefin in the formulation is 55% to 99% by weight, preferably 70% to 98% by weight, particularly preferably 80% to 95% by weight.

6. The formulation according to any one of claims 1 to 5, wherein the amorphous poly-α-olefin has a polydispersity of 5 to 10 and / or preferably and a glass transition temperature of -45 °C to -25 °C, in each case measured according to the measurement method described in the specification.

7. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The amorphous poly-α-olefin is measured according to the measurement method described in the specification and has a melt flow index [MFI 2.16 kg @ 140 °C] of 40 to 10,000, and the formulation according to any one of claims 1 to 6.

8. The amorphous poly-α-olefin is based on the monomers ethylene, propylene, and 1-butene, the proportion of the monomer propylene or 1-butene exceeds 50% by weight, and the total proportion of the remaining monomers ethylene and 1-butene, or ethylene and propylene is less than 50% by weight in each case, and in each case is the proportion relative to the total of the molar ratios of ethylene, propylene, and 1-butene, and the formulation according to any one of claims 1 to 7.

9. The amorphous poly-α-olefin has an isotacticity of the 1-butene or propene block of less than 80% in terms of the mmmm-pentad fraction measured according to the measurement method described in the specification, and the formulation according to any one of claims 1 to 8.

10. A method for producing a formulation according to any one of claims 1 to 9, wherein the components are mixed.

11. The method according to claim 10, wherein the components are used and mixed as powders or pellets.

12. The method according to claim 11, wherein the pellet mixture is extruded to obtain a mixed pellet material. 。

13. Packaging, films, injection molded parts, pipes, hoses, fibers, fabrics, bottles, plastic housings, masterbatch compounds for improving pigment dispersion, plastic products in the automotive or transportation sectors and a process for manufacturing the same, and the method according to any one of claims 10 to 12.

14. Use of the formulation according to any one of claims 1 to 9 as, or for manufacturing, packaging, films, injection molded parts, pipes, hoses, fibers, fabrics, bottles, plastic housings, masterbatch compounds for improving pigment dispersion, plastic products in the automotive or transportation sectors. ​ ​ ​

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