Polymer composition for extruded profiles

Abstract

The present invention provides a composition comprising an interpolymer composition, the interpolymer composition comprising a first ethylene / alpha-olefin / non-conjugated polyene interpolymer and a second ethylene / alpha-olefin / non-conjugated polyene interpolymer, wherein the interpolymer composition has a Mooney viscosity (ML(1+4) at 125°C) of <50 and a rheological parameter ((RR / Mn) x 1000) of ≥ 0.60.

Description

Background Art

[0001] Cross - reference to Related Applications This application claims the benefit of priority to U.S. Patent Application No. 62 / 905,016, filed on September 24, 2019, which is hereby incorporated by reference in its entirety.

[0002] Ethylene propylene diene (EPDM) elastomers are widely used in rubber formulations for automotive weatherstripping such as door, window, sunroof, trunk, and hood profiles. EPDM - based formulations can provide excellent mechanical strength and modulus, good low - temperature flexibility, excellent weather resistance, and excellent extrusion performance. These properties are important technical requirements for weatherstripping manufacturers. The molecular characteristics of the elastomer typically affect the final physical properties of the profile formed by the extrusion process. The profile can include a glass run channel (GRC) and a beltline seal (BLS), each of which consists of hard structural components to reinforce and support the profile. The characteristics of these profiles also require that the elastomer composition have high hardness, high modulus, high filler acceptability, and fast curing speed while maintaining a good balance of other mechanical properties. There is a need for new and improved elastomer compositions that can meet the current requirements of the supported profiles.

[0003] Some conventional elastomer compositions are described in the following patent references. WO 2014 / 084893 discloses two ethylene / alpha-olefin / non-conjugated polyene interpolymers and compositions containing the same. The compositions are used to form vulcanized rubber and provide improved mixing, processability and mechanical properties. WO 2013 / 096573 discloses the solution polymerization of ethylene / alpha-olefin / non-conjugated polyene interpolymers having a rheology ratio of 20 or more. These interpolymers can be produced at higher temperatures and thus lower viscosities. See also WO 2007 / 136494 (post-polymerization of ethylene / alpha-olefin / non-conjugated polyene interpolymers). WO 2011 / 008837 discloses compositions containing two ethylene / alpha-olefin / non-conjugated polyene interpolymers. These compositions can be used to form weather strips with good mechanical properties and high consistency.

[0004] However, there is still a need for an elastomer composition that has high hardness, high modulus, high filler loading, and fast curing rate and can be used to form extruded profiles that meet the increasing structural requirements for weather strips. This need has been met by the following invention. SUMMARY OF THE INVENTION

[0005] A composition comprising an interpolymer composition, The interpolymer composition comprises a first ethylene / alpha-olefin / non-conjugated polyene interpolymer and a second ethylene / alpha-olefin / non-conjugated polyene interpolymer, The interpolymer composition has a Mooney viscosity (ML(1+4), 125 °C) of <50 and a rheology parameter ((RR / Mn)×1000) of ≧0.60. BRIEF DESCRIPTION OF THE DRAWINGS

[0006]

Figure 1

DETAILED DESCRIPTION OF THE INVENTION

[0007] A polymer composition has been discovered that provides good hardness, high mechanical strength, high filler loading and dispersion, and fast cure rates. As discussed above, each composition includes an interpolymer composition, The interpolymer composition includes a first ethylene / alpha-olefin / non-conjugated polyene interpolymer and a second ethylene / alpha-olefin / non-conjugated polyene interpolymer, The interpolymer composition has a Mooney viscosity (ML(1+4), 125° C.) of <50 and a rheology parameter ((RR / Mn)×1000) of ≧0.60. The compositions of the present invention may each include combinations of two or more of the embodiments described herein.

[0008] As used herein, the rheology parameter ((RR / Mn)×1000) is an indicator of compositional properties (e.g., molecular weight, MWD, long chain branching) of an interpolymer composition that provides an excellent balance of mechanical properties and processability of the composition.

[0009] With respect to the interpolymer composition, the second ethylene / alpha-olefin / non-conjugated polyene interpolymer is at least one property selected from Mn, Mw, Mz, MWD, Mooney viscosity, V0.1, V100, RR, or any combination thereof, and further differs from the first ethylene / alpha-olefin / non-conjugated polyene interpolymer in Mn, Mw, Mz, MWD, or any combination thereof.

[0010] In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has a rheology parameter ((RR / Mn)×1000) of ≧0.62, or ≧0.64, or ≧0.66, or ≧0.68, or ≧0.70. In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has a rheology parameter ((RR / Mn)×1000) of ≦2.00, or ≦1.90, or ≦1.80, or ≦1.70, or ≦1.60.

[0011] In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has a Mooney viscosity (ML(1+4), 125 °C) of ≦48, or ≦46, or ≦44, or ≦42, or ≦40, or ≦38, or ≦36, or ≦34, or ≦32. In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has a Mooney viscosity (ML(1+4), 125 °C) of ≧10, or ≧12, or ≧14, or ≧16, or ≧18, or ≧20, or ≧22, or ≧24, or ≧26, or ≧28.

[0012] In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has an RR / MWD ratio of ≧4.40, or ≧4.60, or ≧4.80, or ≧5.00, or ≧5.10, or ≧5.20, or ≧5.30.. In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has an RR / MWD ratio of ≦6.60, or ≦6.40, or ≦6.20, or ≦6.00, or ≦5.90, or ≦5.80, or ≦5.70.

[0013] In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has a molecular weight distribution (MWD) of ≧3.60, or ≧3.80, or ≧4.00, or ≧4.20, or ≧4.40, or ≧4.50. In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has a molecular weight distribution (MWD) of ≦8.00, or ≦7.80, or ≦7.60, or ≦7.40, or ≦7.20, or ≦7.00.

[0014] In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has a ratio {[(RR / Mn)×1000] インターポリマー組成物 / [(RR / Mn)×1000] 第1のインターポリマー} of ≧2.00, or ≧2.10, or ≧2.20, or ≧2.30, or ≧2.40, or ≧2.50. In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has a ratio {[(RR / Mn)×1000] インターポリマー組成物 / [(RR / Mn)×1000] 第1のインターポリマー} of ≦4.00, or ≦3.90, or ≦3.80, or ≦3.70.

[0015] In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has a ratio {[RR / MWD] 第1のインターポリマー / [RR / MWD] インターポリマー組成物} of ≧2.50, or ≧2.60, or ≧2.70, or ≧2.80, or ≧2.90, or ≧3.00. In one embodiment, or in a combination of two or more embodiments, each described herein, the interpolymer composition has a ratio {[RR / MWD] 第1のインターポリマー / [RR / MWD] インターポリマー組成物} of ≦6.00, or ≦5.90, or ≦5.80, or ≦5.70, or ≦5.60, or ≦5.50, or ≦5.40, or ≦5.30, or ≦5.20, or ≦5.10.

[0016] In one embodiment, or in a combination of two or more embodiments each described herein, the interpolymer composition has a ratio {[MWD] インターポリマー組成物 / [MWD] 第1のインターポリマー} that is ≧1.50, or ≧1.60, or ≧1.70, or ≧1.80, or ≧1.90, or ≧2.00. In one embodiment, or in a combination of two or more embodiments each described herein, the interpolymer composition has a ratio {[MWD] インターポリマー組成物 / [MWD] 第1のインターポリマー} that is ≦3.50, or ≦3.40, or ≦3.30, or ≦3.20, or ≦3.10.

[0017] In one embodiment, or in a combination of two or more embodiments each described herein, the interpolymer composition has a ratio {[Mn] 第1のインターポリマー / [Mn] インターポリマー組成物} that is ≧3.00, or ≧3.10, or ≧3.20, or ≧3.30, or ≧3.40, or ≧3.50, or ≧3.60, or ≧3.70. In one embodiment, or in a combination of two or more embodiments each described herein, the interpolymer composition has a ratio {[Mn] 第1のインターポリマー / [Mn] インターポリマー組成物} that is ≦7.00, or ≦6.90, or ≦6.80, or ≦6.70, or ≦6.60, or ≦6.50, or ≦6.40, or ≦6.30, or ≦6.20, or ≦6.10.

[0018] In one embodiment, or in a combination of two or more embodiments, each as described herein, the first ethylene / alpha-olefin / non-conjugated polyene interpolymer (the first interpolymer) is a first EPDM, the second ethylene / alpha-olefin / non-conjugated polyene interpolymer (the second interpolymer) is a second EPDM, and the second EPDM is different from the first EPDM in at least one property selected from Mn, Mw, Mz, MWD, Mooney viscosity, V0.1, V100, RR, or any combination thereof, and further in Mn, Mw, Mz, MWD, or any combination thereof. In one embodiment, or in a combination of two or more embodiments, each as described herein, the non-conjugated polyene of the first interpolymer is ENB, and the non-conjugated polyene of the second interpolymer is ENB. In one embodiment, or in a combination of two or more embodiments, each as described herein, the average of the ENB content of the first interpolymer and the ENB content of the second interpolymer is ≧5.2 wt%, or ≧5.4 wt%, or ≧5.6 wt%, or ≧5.8 wt%, or ≧6.0 wt%, or ≧6.2 wt%, or ≧6.4 wt%, or ≧6.5 wt%. In one embodiment, or in a combination of two or more embodiments, each as described herein, the average of the ENB content of the first interpolymer and the ENB content of the second interpolymer is ≦7.2 wt%, or ≦7.1 wt%, or ≦7.0 wt%, or ≦6.9 wt%, or ≦6.8 wt%, or ≦6.7 wt%. It should be noted that the "average of the ENB content of the first interpolymer and the ENB content of the second interpolymer" is the wt% based on the total weight of the first interpolymer and the second interpolymer, and the "ENB content of the first interpolymer" is the wt% based on the weight of the first interpolymer. The ENB content is understood to be in the polymerized form.

[0019] In one embodiment, or in a combination of two or more embodiments each described herein, the interpolymer composition comprises a first interpolymer and a second interpolymer that is ≥90.0 wt%, or ≥92.0 wt%, or ≥94.0 wt%, or ≥96.0 wt%, or ≥98.0 wt%, or ≥99.0 wt%, or ≥99.5 wt%, based on the weight of the interpolymer composition. In one embodiment, or in a combination of two or more embodiments each described herein, the interpolymer composition comprises a first interpolymer and a second interpolymer that is ≤100.0 wt%, or ≤99.9 wt%, or ≤99.8 wt%, based on the weight of the interpolymer composition.

[0020] In one embodiment, or in a combination of two or more embodiments each described herein, the first ethylene / alpha-olefin / non-conjugated polyene interpolymer and / or the second first ethylene / alpha-olefin / non-conjugated polyene interpolymer each independently comprises 50 wt% or a majority of polymerized ethylene, based on the weight of each respective interpolymer. In a further embodiment, each interpolymer is independently EPDM. In a further embodiment, each diene is ENB.

[0021] In one embodiment, or in a combination of two or more embodiments each described herein, the first ethylene / alpha-olefin / non-conjugated polyene interpolymer (the first interpolymer) has a rheology parameter ((RR / Mn)×1000) of ≥0.10, or ≥0.15, or ≥0.20, or ≥0.25, or ≥0.30. In one embodiment, or in a combination of two or more embodiments each described herein, the first interpolymer has a rheology parameter ((RR / Mn)×1000) of ≤0.60, or ≤0.55, or ≤0.50, or ≤0.45.

[0022] In one embodiment, or in a combination of two or more embodiments, each described herein, the composition further comprises a calcined filler formed from a filler composition comprising kaolinite. In a further embodiment, the filler composition further comprises silica.

[0023] In one embodiment, or in a combination of two or more embodiments, each described herein, the composition further comprises a crosslinking agent.

[0024] The present invention also provides a crosslinked composition formed from the composition of any one embodiment, or a combination of two or more embodiments, each described herein.

[0025] In one embodiment, or in a combination of two or more embodiments, each described herein, the composition has a Shore A hardness of ≥70, or ≥71, or ≥72, or ≥73, and in a further embodiment, the Shore A hardness is ≤95. In one embodiment, or in a combination of two or more embodiments, each described herein, the composition has a maximum tensile strength of ≥4 MPa, or ≥5 MPa, or ≥6 MPa, and in a further embodiment, the maximum tensile strength is ≤16 MPa.

[0026] The present invention also provides an article comprising at least one component formed from the composition of any one embodiment, or a combination of two or more embodiments, each described herein. In one embodiment, or in a combination of two or more embodiments, each described herein, the article is an automotive part. In one embodiment, or in a combination of two or more embodiments, each described herein, the article is an extruded article (e.g., an extruded profile), an injection molded article, or a thermoformed article. In a further embodiment, the article is an extruded article (e.g., an extruded profile).

[0027] In one embodiment, or in a combination of two or more embodiments, each described herein, the article is selected from a weatherstrip, a hose (e.g., an automotive hose), a belt (e.g., an automotive belt), a building material, a roofing film, a jacket for a wire and cable, a flooring material, a computer component, a gasket, or a tire.

[0028] The compositions of the present invention can include combinations of two or more embodiments, each described herein. The interpolymer composition can include combinations of two or more embodiments, each described herein. The first ethylene / alpha-olefin / nonconjugated polyene interpolymer (the first interpolymer) can include combinations of two or more embodiments, each described herein. The second ethylene / alpha-olefin / nonconjugated polyene interpolymer (the second interpolymer) can include combinations of two or more embodiments, each described herein.

[0029] Ethylene / alpha-olefin / nonconjugated polyene interpolymer The first ethylene / alpha-olefin / nonconjugated polyene interpolymer and the second ethylene / alpha-olefin / nonconjugated polyene interpolymer each independently include ethylene, an alpha-olefin, and a nonconjugated polyene in polymerized form, as described herein. The alpha-olefin can be either an aliphatic or an aromatic compound. The α-olefin is preferably an aliphatic compound having 3 to 20 carbon atoms, preferably an aliphatic compound having 3 to 16 carbon atoms, more preferably an aliphatic compound having 3 to 10 carbon atoms. Preferred C3-C10 aliphatic alpha-olefins include propylene, 1-butene, 1-hexene, 1-octene, and 1-decene, more preferably propylene. In one embodiment, or in a combination of two or more embodiments, each described herein, each interpolymer is independently an ethylene / propylene / nonconjugated diene (EPDM) terpolymer. In a further embodiment, each diene is 5-ethylidene-2-norbornene (ENB).

[0030] Suitable examples of non-conjugated polyenes include C4-C40 non-conjugated dienes. Exemplary non-conjugated polyenes include linear acyclic dienes such as 1,4-hexadiene and 1,5-heptadiene, branched acyclic dienes such as 5-methyl-1,4-hexadiene, 2-methyl-1,5-hexadiene, 6-methyl-1,5-heptadiene, 7-methyl-1,6-octadiene, 3,7-dimethyl-1,6-octadiene, 3,7-dimethyl-1,7-octadiene, 5,7-dimethyl-1,7-octadiene, 1,9-decadiene, and mixed isomers of dihydromyrcene, monocyclic alicyclic dienes such as 1,4-cyclohexadiene, 1,5-cyclooctadiene and 1,5-cyclododecadiene, polycyclic alicyclic condensed and bridged ring dienes such as tetrahydroindene, methyltetrahydroindene, alkenyl, alkylidene, cycloalkenyl, and cycloalkylidene norbornenes such as 5-methylene-2-norbornene (MNB), 5-ethylidene-2-norbornene (ENB), 5-vinyl-2-norbornene (VNB), 5-propenyl-2-norbornene, 5-isopropylidene-2-norbornene, 5-(4-cyclopentenyl)-2-norbornene and 5-cyclohexylidene-2-norbornene. The polyene is preferably a non-conjugated diene selected from the group consisting of ENB, VNB, dicyclopentadiene, 1,4-hexadiene, 7-methyl-1,6-octadiene, preferably ENB, VNB, dicyclopentadiene and 1,4-hexadiene, more preferably ENB, VNB and dicyclopentadiene, and even more preferably ENB.

[0031] In one embodiment, or in combinations of two or more embodiments, each ethylene / alpha-olefin / non-conjugated polyene interpolymer independently comprises 50 wt% or a majority of polymerized ethylene, based on the weight of the interpolymer. In a further embodiment, each ethylene / alpha-olefin / non-conjugated polyene interpolymer is independently an ethylene / alpha-olefin / non-conjugated polyene interpolymer. In a further embodiment, each interpolymer is independently an EPDM. In a further embodiment, the diene is ENB.

[0032] Ethylene / alpha-olefin / non-conjugated polyene interpolymers can include combinations of two or more embodiments as described herein. Ethylene / alpha-olefin / non-conjugated diene interpolymers can include combinations of two or more embodiments as described herein. EPDM terpolymers may include combinations of two or more embodiments described herein.

[0033] Crosslinking agents, oils and other additives Crosslinking agents include, but are not limited to, elemental sulfur, 4,4'-dithiomorpholine, thiuram di- and polysulfides, alkylphenol disulfides, and sulfur-containing compounds such as 2-morpholino-dithiobenzothiazole, and peroxides such as di-tert-butyl peroxide, tert-butylcumyl peroxide, dicumyl peroxide, 2,5-dimethyl-2,5-di-(tert-butylperoxy)hexane, di-(tert-butylperoxyisopropyl)benzene, tert-butyl peroxybenzoate, and 1,1-di-(tert-butylperoxy)-3,3,5-trimethylcyclohexane. Sulfur can be crystalline elemental sulfur or amorphous elemental sulfur, and either type can be in pure form or supported on an inert carrier. An example of supported sulfur is RHENOGRAN S-80 (80% S and 20% inert carrier) from Rhein Chemie. Sulfur-containing compounds are preferred crosslinking agents.

[0034] Examples of oils include, but are not limited to, paraffin oil, naphthene oil, and polyalkylbenzene oil. In one embodiment, or in combinations of two or more embodiments each described herein, the oil is selected from the group consisting of non-aromatic oil, paraffin oil, naphthene oil, and combinations thereof. Suitable oils include, but are not limited to, SUNPAR 2280, PARALUX 6001, HYDROBRITE 550, and CALSOL 5550, with SUNPAR 2280 being preferred.

[0035] The composition of the present invention may include one or more additional additives. Suitable additives include, but are not limited to, fillers, stabilizers (such as antioxidants, anti-ozone agents, UV stabilizers), flame retardants, colorants or pigments, and combinations thereof. Fillers include, but are not limited to, calcined fillers, carbon black (such as SPHERON 6000A, SPHERON 5000A, SPHERON 6400A, and THERMAX N-990), aluminum, magnesium, calcium, sodium, potassium silicates, and mixtures thereof; calcium, magnesium carbonates, and mixtures thereof; silicon, calcium, zinc, iron, titanium, and aluminum oxides; calcium, barium, and lead sulfates; alumina trihydrate; magnesium hydroxide; natural fibers, synthetic fibers, and the like. The composition of the present invention preferably includes at least one calcined filler and carbon black. Some stabilizers include, but are not limited to, hindered phenols, bisphenols, and thiobisphenols, as well as substituted hydroquinones. Typically, "ppm" amounts of one or more stabilizers are added to the polymer or polymer composition.

[0036] In one embodiment, or in combinations of two or more embodiments, each as described herein, the composition of the present invention further comprises a thermoplastic polymer that is different from each of the first interpolymer and the second interpolymer in one or more characteristics such as monomer type and / or amount, Mn, Mw, Mz, MWD, Mooney viscosity, V0.1, V100, RR, or any combination thereof. Polymers include, but are not limited to, ethylene-based polymers, propylene-based polymers, and olefin multiblock interpolymers. Suitable ethylene-based polymers include, but are not limited to, high density polyethylene (HDPE), linear low density polyethylene (LLDPE), very low density polyethylene (VLDPE), ultra low density polyethylene (ULDPE), homogeneously branched linear ethylene polymers, and homogeneously branched substantially linear ethylene polymers (i.e., homogeneously branched long chain branched ethylene polymers). Suitable propylene-based polymers include, but are not limited to, polypropylene homopolymers, and propylene / ethylene copolymers.

[0037] Definitions Unless stated to the contrary, implicit from the context, or customary in the art, all parts and percentages are by weight, and all test methods are current as of the filing date of the present disclosure.

[0038] As used herein, the term "composition" includes a composition, as well as a mixture of materials including reaction products and decomposition products formed from the materials of the composition. Any reaction products or decomposition products are Typically present in trace or residual amounts.

[0039] As used herein, the term "polymer" refers to a polymer compound prepared by polymerizing monomers of the same or different types. Therefore, the general term "polymer" includes the term "homopolymer" (used to refer to a polymer prepared from only one type of monomer, with the understanding that trace impurities may be incorporated into the polymer structure), and the term "interpolymer" as defined below herein. Trace impurities such as catalyst residues can be incorporated within and / or into the polymer.

[0040] As used herein, the term "interpolymer" refers to a polymer prepared by the polymerization of at least two different types of monomers. Thus, the term "interpolymer" includes the term "copolymer" (used to refer to a polymer prepared from two different types of monomers) and polymers prepared from more than two different types of monomers.

[0041] As used herein, the term "olefin polymer" refers to a polymer that contains, in polymerized form, a majority weight percent of propylene (based on the weight of the polymer), and optionally may contain one or more comonomers.

[0042] As used herein, the term "olefin polymer" refers to a polymer that contains, in polymerized form, 50 weight percent or a majority weight percent of ethylene (based on the weight of the polymer), and optionally may contain one or more comonomers.

[0043] As used herein, the term "ethylene / alpha-olefin / nonconjugated polyene interpolymer" refers to a polymer that contains, in polymerized form, ethylene, an alpha-olefin, and a nonconjugated polyene. In one embodiment, the "ethylene / alpha-olefin / nonconjugated polyene interpolymer" contains 50 weight percent or a major weight percent of ethylene (based on the weight of the interpolymer).

[0044] As used herein, the term "ethylene / alpha-olefin / non-conjugated diene interpolymer" refers to an interpolymer in polymerized form that includes ethylene, an alpha-olefin, and a non-conjugated diene. In one embodiment, the "ethylene / alpha-olefin / non-conjugated diene interpolymer" includes 50 weight percent or a majority weight percent of ethylene (based on the weight of the interpolymer).

[0045] As used herein, the term "ethylene / α-olefin copolymer" refers to a copolymer in polymerized form that includes only two types of monomers: 50 weight percent or a majority amount of ethylene monomer (based on the weight of the copolymer) and an α-olefin.

[0046] As used herein with respect to a filler, the term "calcined" refers to the heat treatment of the filler, which is carried out at a temperature of ≧600° C., typically at a maximum of ≦1050° C. Such heat treatment can be carried out in a furnace. The filler can be heated so as not to melt while undergoing oxidation, removal of moisture, and / or reduction to a loose state (calx). Typically, the calcination process removes the water of crystallization and the crystallinity of the hydrous material.

[0047] The terms "comprising," "including," "having," and their derivatives are not intended to exclude the presence of any additional constituent, step, or procedure, whether or not specifically disclosed. To avoid doubt, all compositions claimed through use of the term "comprising" may include any additional additive, adjuvant, or compound, whether a polymer or not, unless the contrary is stated. In contrast, the term "consisting essentially of" excludes from the scope of any subsequent description any other constituent, step, or procedure not essential to operability. The term "consisting of" excludes any constituent, step, or procedure not specifically specified or enumerated.

[0048] Enumeration of Some Composition Features a) A composition comprising an interpolymer composition, wherein the interpolymer composition comprises a first ethylene / alpha-olefin / non-conjugated polyene interpolymer (first interpolymer) and a second ethylene / alpha-olefin / non-conjugated polyene interpolymer (second interpolymer), the interpolymer composition has a Mooney viscosity (ML(1+4), 125 °C) of <50 and a rheology parameter ((RR / Mn)×1000) of ≧0.60.

[0049] b) The composition according to a) above, wherein the interpolymer composition has a rheology parameter ((RR / Mn)×1000) of ≧0.62, or ≧0.64, or ≧0.66, or ≧0.68, or ≧0.70.

[0050] c) The composition according to a) or b) above, wherein the interpolymer composition has a rheology parameter ((RR / Mn)×1000) of ≦2.00, or ≦1.90, or ≦1.80, or ≦1.70, or ≦1.60.

[0051] d) The composition according to any one of a) to c) above, wherein the interpolymer composition has a Mooney viscosity (ML(1+4), 125 °C) of ≦48, or ≦46, or ≦44, or ≦42, or ≦40, or ≦38, or ≦36, or ≦34, or ≦32.

[0052] e) The composition according to any one of a) to d) above, wherein the interpolymer composition has a Mooney viscosity (ML(1+4), 125 °C) of ≧10, or ≧12, or ≧14, or ≧16, or ≧18, or ≧20, or ≧22, or ≧24, or ≧26, or ≧28.

[0053] f) Any one of the compositions of a) to e) above, wherein the interpolymer composition has an RR / MWD ratio of ≧4.40, or ≧4.60, or ≧4.80, or ≧5.00, or ≧5.10, or ≧5.20, or ≧5.30.

[0054] g) Any one of the compositions of a) to f) above, wherein the interpolymer composition has an RR / MWD ratio of ≦6.60, or ≦6.40, or ≦6.20, or ≦6.00, or ≦5.90, or ≦5.80, or ≦5.70.

[0055] h) Any one of the compositions of a) to g) above, wherein the interpolymer composition has a molecular weight distribution MWD of ≧3.60, or ≧3.80, or ≧4.00, or ≧4.20, or ≧4.40, or ≧4.50.

[0056] i) Any one of the compositions of a) to h) above, wherein the interpolymer composition has a molecular weight distribution MWD of ≦8.00, or ≦7.80, or ≦7.60, or ≦7.40, or ≦7.20, or ≦7.00.

[0057] j) Any one of the compositions of a) to i) above, wherein the interpolymer composition has a number average molecular weight Mn of ≧10,000 g / mol, or ≧12,000 g / mol, or ≧14,000 g / mol, or ≧16,000 g / mol, or ≧18,000 g / mol, or ≧20,000 g / mol.

[0058] k) Any one of the compositions of a) to j) above, wherein the interpolymer composition has a number average molecular weight Mn of ≦50,000 g / mol, or ≦45,000 g / mol, or ≦40,000 g / mol, or ≦35,000 g / mol, or ≦30,000 g / mol.

[0059] l) One of the compositions of a) to k) above, wherein the interpolymer composition has a weight average molecular weight Mw of ≥90,000 g / mol, or ≥100,000 g / mol, or ≥110,000 g / mol, or ≥120,000 g / mol, or ≥130,000 g / mol.

[0060] m) One of the compositions of a) to l) above, wherein the interpolymer composition has a number average molecular weight Mw of ≤300,000 g / mol, or ≤280,000 g / mol, or ≤260,000 g / mol, or ≤240,000 g / mol, or ≤220,000 g / mol, or ≤200,000 g / mol, or ≤180,000 g / mol.

[0061] n) One of the compositions of a) to m) above, wherein the interpolymer composition has a z average molecular weight Mz of ≥350,000 g / mol, or ≥360,000 g / mol, or ≥370,000 g / mol, or ≥380,000 g / mol, or ≥390,000 g / mol.

[0062] o) One of the compositions of a) to n) above, wherein the interpolymer composition has a z average molecular weight Mz of ≤600,000 g / mol, or ≤595,000 g / mol, or ≤590,000 g / mol, or ≤585,000 g / mol, or ≤580,000 g / mol, or ≤575,000 g / mol.

[0063] p) One of the compositions of a) to o) above, wherein the interpolymer composition has a molecular weight ratio Mz / Mn of ≥10.0, or ≥11.0, or ≥12.0, or ≥13.0.

[0064] q) One of the compositions of a) to p) above, wherein the interpolymer composition has a molecular weight ratio Mz / Mn of ≦30.0, or ≦29.0, or ≦28.0, or ≦27.0, or ≦26.0, or ≦25.0.

[0065] r) One of the compositions of a) to q) above, wherein the interpolymer composition has a molecular weight ratio Mz / Mw of ≧2.70, or ≧2.75, or ≧2.80, or ≧2.85, or ≧2.90, or ≧2.95.

[0066] s) One of the compositions of a) to r) above, wherein the interpolymer composition has a molecular weight ratio Mz / Mw of ≦4.00, or ≦3.95, or ≦3.90, or ≦3.85, or ≦3.80, or ≦3.75, or ≦3.70.

[0067] t) One of the compositions of a) to s) above, wherein the interpolymer composition has a ratio {[(RR / Mn)×1000] インターポリマー組成物 / [(RR / Mn)×1000] 第1のインターポリマー} of ≧2.00, or ≧2.10, or ≧2.20, or ≧2.30, or ≧2.40, or ≧2.50.

[0068] u) One of the compositions of a) to t) above, wherein the interpolymer composition has a ratio {[(RR / Mn)×1000] インターポリマー組成物 / [(RR / Mn)×1000] 第1のインターポリマー} of ≦4.00, or ≦3.90, or ≦3.80, or ≦3.70.

[0069] v) One of the compositions of a) to u) above, wherein the interpolymer composition has a ratio {[RR / MWD] 第1のインターポリマー / [RR / MWD] インターポリマー組成物} of ≧2.50, or ≧2.60, or ≧2.70, or ≧2.80, or ≧2.90, or ≧3.00.

[0070] w) Any one of the compositions of a) to v) above, wherein the interpolymer composition has a ratio {[RR / MWD] 第1のインターポリマー / [RR / MWD] インターポリマー組成物} of ≤ 6.00, or ≤ 5.90, or ≤ 5.80, or ≤ 5.70, or ≤ 5.60, or ≤ 5.50, or ≤ 5.40, or ≤ 5.30, or ≤ 5.20, or ≤ 5.10.

[0071] x) Any one of the compositions of a) to w) above, wherein the interpolymer composition has a ratio {[MWD] インターポリマー組成物 / [MWD] 第1のインターポリマー} of ≥ 1.50, or ≥ 1.60, or ≥ 1.70, or ≥ 1.80, or ≥ 1.90, or ≥ 2.00.

[0072] y) Any one of the compositions of a) to x) above, wherein the interpolymer composition has a ratio {[MWD] インターポリマー組成物 / [MWD] 第1のインターポリマー} of ≤ 3.50, or ≤ 3.40, or ≤ 3.30, or ≤ 3.20, or ≤ 3.10.

[0073] z) Any one of the compositions of a) to y) above, wherein the interpolymer composition has a ratio {[Mn] 第1のインターポリマー / [Mn] インターポリマー組成物} of ≥ 3.00, or ≥ 3.10, or ≥ 3.20, or ≥ 3.30, or ≥ 3.40, or ≥ 3.50, or ≥ 3.60, or ≥ 3.70.

[0074] aa) Any one of the compositions of a) to z) above, wherein the interpolymer composition has a ratio {[Mn] 第1のインターポリマー / [Mn] インターポリマー組成物} of ≤ 7.00, or ≤ 6.90, or ≤ 6.80, or ≤ 6.70, or ≤ 6.60, or ≤ 6.50, or ≤ 6.40, or ≤ 6.30, or ≤ 6.20, or ≤ 6.10.

[0075] bb) Any one of the compositions of a) to aa) above, wherein the interpolymer composition has a ratio {[Mw] 第1のインターポリマー / [Mw] インターポリマー組成物} of ≧ 1.50, or ≧ 1.60, or ≧ 1.70, or ≧ 1.80.

[0076] cc) Any one of the compositions of a) to bb) above, wherein the interpolymer composition has a ratio {[Mw] 第1のインターポリマー / [Mw] インターポリマー組成物} of ≦ 2.30, or ≦ 2.20, or ≦ 2.10, or ≦ 2.00.

[0077] dd) Any one of the compositions of a) to cc) above, wherein the interpolymer composition has a ratio {[Mz] 第1のインターポリマー / [Mz] インターポリマー組成物} of ≧ 0.90, or ≧ 0.95, or ≧ 1.00, or ≧ 1.05, or ≧ 1.10.

[0078] ee) Any one of the compositions of a) to dd) above, wherein the interpolymer composition has a ratio {[Mz] 第1のインターポリマー / [Mz] インターポリマー組成物} of ≦ 1.40, or ≦ 1.35, or ≦ 1.30, or ≦ 1.25, or ≦ 1.20.

[0079] ff) Any one of the compositions of a) to ee) above, wherein the interpolymer composition has a V0.1 (0.1 rad / s, 190 °C) of ≧ 34,000 Pa·s, or ≧ 36,000 Pa·s, or ≧ 38,000 Pa·s, or ≧ 40,000 Pa·s, or ≧ 42,000 Pa·s, or ≧ 44,000 Pa·s, or ≧ 46,000 Pa·s, or ≧ 48,000 Pa·s, or ≧ 50,000 Pa·s.

[0080] gg) Any one of the compositions of a) to ff) above, wherein the interpolymer composition has a V0.1 (0.1 rad / s, 190 °C) of ≦ 86,000 Pa·s, or ≦ 84,000 Pa·s, or ≦ 82,000 Pa·s, or ≦ 80,000 Pa·s, or ≦ 78,000 Pa·s, or ≦ 76,000 Pa·s, or ≦ 74,000 Pa·s, or ≦ 72,000 Pa·s, or ≦ 70,000 Pa·s.

[0081] hh) Any one of the compositions of a) to gg) above, wherein the interpolymer composition has a V100 (100 rad / s, 190 °C) of ≧ 1,400 Pa·s, or ≧ 1,500 Pa·s, or ≧ 1,600 Pa·s, or ≧ 1,700 Pa·s, or ≧ 1,800 Pa·s.

[0082] ii) Any one of the compositions of a) to hh) above, wherein the interpolymer composition has a V100 (100 rad / s, 190 °C) of ≦ 2,500 Pa·s, or ≦ 2,400 Pa·s, or ≦ 2,300 Pa·s, or ≦ 2,200 Pa·s, or ≦ 2,100 Pa·s.

[0083] jj) Any one of the compositions of a) to ii) above, wherein the interpolymer composition has a rheology ratio (RR) of ≧ 20.0, or ≧ 21.0, or ≧ 22.0, or ≧ 23.0, or ≧ 24.0, or ≧ 25.0.

[0084] kk) Any one of the compositions of a) to jj) above, wherein the interpolymer composition has a rheology ratio (RR) of ≦ 50.0, or ≦ 45.0, or ≦ 40.0, or ≦ 39.0, or ≦ 38.0, or ≦ 37.0.

[0085] ll) Any one of the compositions of a) to kk) above, wherein the interpolymer composition has a tandelta of ≧ 0.9, or ≧ 1.0, or ≧, or ≧ 1.1, or ≧ 1.2, or ≧ 1.3.

[0086] mm) Any one of the compositions of a) to ll) above, wherein the interpolymer composition has a tandelta of ≦ 2.2, or ≦ 2.1, or ≦ 2.0, or ≦ 1.9, or ≦ 1.8, or ≦ 1.7.

[0087] nn) Any one of the compositions of a) to mm) above, wherein the interpolymer composition has a deltadelta of ≧ 16.0, or ≧ 18.0, or ≧ 20.0, or ≧ 22.0.

[0088] oo) Any one of the compositions of a) to nn) above, wherein the interpolymer composition has a deltadelta of ≦ 30.0, or ≦ 28.0, or ≦ 26.0, or ≦ 24.0.

[0089] pp) Any one of the compositions of a) to oo) above, wherein the interpolymer composition has a ratio {[V0.1] 第1のインターポリマー / [V0.1] インターポリマー組成物} of ≧ 5.80, or ≧ 5.85, or ≧ 5.90, or ≧ 5.95, or ≧ 6.00, or ≧ 6.05.

[0090] qq) Any one of the compositions of a) to pp) above, wherein the interpolymer composition has a ratio {[V0.1] 第1のインターポリマー / [V0.1] インターポリマー組成物} of ≦ 8.50, or ≦ 8.45, or ≦ 8.40, or ≦ 8.35, or ≦ 8.30, or ≦ 8.25.

[0091] rr) Any one of the compositions of a) to qq) above, wherein the interpolymer composition has a ratio {[V100] 第1のインターポリマー / [V100] インターポリマー組成物} of ≧ 3.80, or ≧ 3.85, or ≧ 3.90, or ≧ 3.95, or ≧ 4.00, or ≧ 4.05, or ≧ 4.10.

[0092] ss) Any one of the compositions of a) to rr) above, wherein the interpolymer composition has a ratio {[V100] 第1のインターポリマー / [V100] インターポリマー組成物} of ≦ 5.30, or ≦ 5.25, or ≦ 5.20, or ≦ 5.15, or ≦ 5.10, or ≦ 5.05, Composition.

[0093] tt) Any one of the compositions of a) to ss) above, wherein the interpolymer composition has a ratio {[RR] 第1のインターポリマー / [RR] インターポリマー組成物} of ≧ 1.20, or ≧ 1.25, or ≧ 1.30, or ≧ 1.35, or ≧ 1.40, or ≧ 1.45, Composition.

[0094] uu) Any one of the compositions of a) to tt) above, wherein the interpolymer composition has a ratio {[RR] 第1のインターポリマー / [RR] インターポリマー組成物} of ≦ 1.80, or ≦ 1.75, or ≦ 1.70, or ≦ 1.65, or ≦ 1.60, or ≦ 1.55, Composition.

[0095] vv) Any one of the compositions of a) to uu) above, wherein the first ethylene / alpha-olefin / non-conjugated polyene interpolymer (the first interpolymer) is the first EPDM, and the second ethylene / alpha-olefin / non-conjugated polyene interpolymer (the second interpolymer) is the second EPDM, and the second EPDM has at least one property selected from Mn, Mw, Mz, MWD, Mooney viscosity, V0.1, V100, RR, or any combination thereof, and further differs from the first EPDM in Mn, Mw, Mz, MWD, or any combination thereof, Composition.

[0096] ww) Any one of the compositions of a) to vv) above, wherein the non-conjugated polyene of the first interpolymer is ENB and the non-conjugated polyene of the second interpolymer is ENB, Composition.

[0097] xx) The composition according to ww) above, wherein the average of the ENB content of the first interpolymer and the ENB content of the second interpolymer is ≧5.4 wt%, or ≧5.6 wt%, or ≧5.8 wt%, or ≧6.0 wt%, or ≧6.2 wt%, or ≧6.4 wt%, or ≧6.5 wt% based on the total weight of the first and second interpolymers.

[0098] yy) The composition according to ww) or xx) above, wherein the average of the ENB content of the first interpolymer and the ENB content of the second interpolymer is ≦7.2 wt%, or ≦7.1 wt%, or ≦7.0 wt%, or ≦6.9 wt%, or ≦6.8 wt%, or ≦6.7 wt% based on the total weight of the first and second interpolymers.

[0099] zz) The composition according to any one of ww) to yy) above, wherein the ratio [(average of the ENB content of the first interpolymer and the ENB content of the second interpolymer) / (ENB content of the first interpolymer)] is ≧0.90, or ≧0.95, or ≧1.00.

[0100] a3) The composition according to any one of ww) to zz) above, wherein the ratio [(average of the ENB content of the first interpolymer and the ENB content of the second interpolymer) / (ENB content of the first interpolymer)] is ≦1.20, or ≦1.15, or ≦1.10, or ≦1.05. It should be noted that "the average of the ENB content of the first interpolymer and the ENB content of the second interpolymer" is the weight % based on the total weight of the first and second interpolymers, and "the ENB content of the first interpolymer" is the weight % based on the weight of the first interpolymer. The ENB content is understood to be in the polymerized form.

[0101] b3) One of the compositions of a) to a3) above, wherein the average of the C2 (ethylene) content of the first interpolymer and the C2 (ethylene) content of the second interpolymer is ≧ 60.0 wt%, or ≧ 62.0 wt%, or ≧ 64.0 wt%, or ≧ 66.0 wt%, or ≧ 68.0 wt%, or ≧ 70.0 wt% based on the total weight of the first interpolymer and the second interpolymer.

[0102] c3) One of the compositions of a) to b3) above, wherein the average of the C2 (ethylene) content of the first interpolymer and the C2 (ethylene) content of the second interpolymer is ≦ 84.0 wt%, or ≦ 82.0 wt%, or ≦ 80.0 wt%, or ≦ 78.0 wt%, or ≦ 76.0 wt%, or ≦ 74.0 wt% based on the total weight of the first interpolymer and the second interpolymer. The C2 (ethylene) content is understood to be in the polymerized form.

[0103] d3) One of the compositions of a) to c3) above, wherein the interpolymer composition is ≧ 90.0 wt%, or ≧ 92.0 wt%, or ≧ 94.0 wt%, or ≧ 96.0 wt%, or ≧ 98.0 wt%, or ≧ 99.0 wt%, or ≧ 99.5 wt% of the first interpolymer and the second interpolymer based on the weight of the interpolymer composition.

[0104] e3) One of the compositions of a) to d3) above, wherein the interpolymer composition contains ≦ 100.0 wt%, or ≦ 99.9 wt%, or ≦ 99.8 wt% of the first interpolymer and the second interpolymer based on the weight of the interpolymer composition.

[0105] f3) One of the compositions of a) to e3) above, wherein the interpolymer composition has a "13C NMR% peak area" which is {[(13C NMR peak area of 21.3 ppm to 22.0 ppm) divided by (total integrated area of 19.5 ppm to 22.0 ppm)] × 100}, that is, when determined by 13C NMR, it is ≥ 4.0%, or ≥ 5.0%, or ≥ 6.0%, or ≥ 7.0%, or ≥ 8.0%, or ≥ 9.0%, or ≥ 10.0%, or ≥ 11.0%, or ≥ 12.0%.

[0106] g3) One of the compositions of a) to f3) above, wherein the interpolymer composition has a "13C NMR% peak area", that is, when determined by 13C NMR, it is ≤ 30.0%, or ≤ 25.0%, or ≤ 20.0%.

[0107] h3) One of the compositions of a) to g3) above, wherein the interpolymer composition has a Tm value of ≥ 50.0 °C, or ≥ 55.0 °C, or ≥ 60.0 °C, or ≥ 62.0 °C, or ≥ 64.0 °C, or ≥ 66.0 °C.

[0108] i3) One of the compositions of a) to h3) above, wherein the interpolymer composition has a Tm value of ≤ 85.0 °C, or ≤ 80.0 °C, or ≤ 78.0 °C, or ≤ 76.0 °C, or ≤ 74.0 °C, or ≤ 72.0 °C, or ≤ 70.0 °C.

[0109] j3) One of the compositions of a) to i3) above, wherein the interpolymer composition has a Tg value of ≥ -50.0 °C, or ≥ -48.0 °C, or ≥ -46.0 °C, or ≥ -44.0 °C, or ≥ -42.0 °C, or ≥ -40.0 °C.

[0110] k3) One of the compositions of a) to j3) above, wherein the interpolymer composition has a Tg value of ≦ -20.0 °C, or ≦ -22.0 °C, or ≦ -24.0 °C, or ≦ -26.0 °C, or ≦ -28.0 °C, or ≦ -30.0 °C.

[0111] l3) One of the compositions of a) to k3) above, wherein the interpolymer composition has a Tc value of ≧ 40.0 °C, or ≧ 42.0 °C, or ≧ 46.0 °C, or ≧ 48.0 °C, or ≧ 50.0 °C, or ≧ 52.0 °C.

[0112] m3) One of the compositions of a) to l3) above, wherein the interpolymer composition has a Tc value of ≦ 70.0 °C, or ≦ 68.0 °C, or ≦ 66.0 °C, or ≦ 64.0 °C, or ≦ 62.0 °C, or ≦ 60.0 °C.

[0113] n3) One of the compositions of a) to m3) above, wherein the interpolymer composition has a crystallinity % of ≧ 8.0%, or ≧ 10.0%, or ≧ 12.0%, or ≧ 14.0%, or ≧ 16.0%.

[0114] o3) One of the compositions of a) to n3) above, wherein the interpolymer composition has a crystallinity % of ≦ 30.0%, or ≦ 28.0%, or ≦ 26.0%, or ≦ 24.0%, or ≦ 22.0%, or ≦ 20.0%.

[0115] p3) One of the compositions of a) to o3) above, wherein the first ethylene / alpha-olefin / non-conjugated polyene interpolymer and / or the second first ethylene / alpha-olefin / non-conjugated polyene interpolymer each independently contains 50% by weight or a majority by weight of ethylene based on the weight of each interpolymer. In a further embodiment, both interpolymers independently contain 50% by weight or a majority by weight of polymerized ethylene.

[0116] q3) The composition of p3) above, wherein each interpolymer is independently EPDM. In a further embodiment, each diene is ENB.

[0117] r3) A composition of any one of a) to q3) above, wherein the first ethylene / alpha-olefin / non-conjugated polyene interpolymer (the first interpolymer) has a rheology parameter ((RR / Mn)×1000) of ≧0.10, or ≧0.15, or ≧0.20, or ≧0.25, or ≧0.30.

[0118] s3) A composition of any one of a) to r3) above, wherein the first interpolymer has a rheology parameter ((RR / Mn)×1000) of ≦0.60, or ≦0.55, or ≦0.50, or ≦0.45.

[0119] t3) A composition of any one of a) to s3) above, wherein the first interpolymer has an RR / MWD ratio of ≧10.0, or ≧11.0, or ≧12.0, or ≧13.0, or ≧14.0, or ≧15.0, or ≧16.0.

[0120] u3) A composition of any one of a) to t3) above, wherein the first interpolymer has an RR / MWD ratio of ≦36.0, or ≦34.0, or ≦32.0, or ≦30.0, or ≦28.0, or ≦27.0.

[0121] v3) A composition of any one of a) to u3) above, wherein the first interpolymer has a molecular weight distribution MWD of ≧1.80, or ≧1.90, or ≧2.00, or ≧2.10, or ≧2.20.

[0122] w3) One of the compositions of a) to v3) above, wherein the first interpolymer has a molecular weight distribution MWD of ≦3.00, or ≦2.90, or ≦2.80, or ≦2.70, or ≦2.50, or ≦2.40, or ≦2.30.

[0123] x3) One of the compositions of a) to w3) above, wherein the first interpolymer has a number average molecular weight Mn of ≧80,000 g / mol, or ≧85,000 g / mol, or ≧90,000 g / mol, or ≧95,000 g / mol, or ≧100,000 g / mol, or ≧105,000 g / mol.

[0124] y3) One of the compositions of a) to x3) above, wherein the first interpolymer has a number average molecular weight Mn of ≦180,000 g / mol, or ≦170,000 g / mol, or ≦160,000 g / mol, or ≦155,000 g / mol, or ≦150,000 g / mol, or ≦145,000 g / mol.

[0125] z3) One of the compositions of a) to y3) above, wherein the first interpolymer has a weight average molecular weight Mw of ≧200,000 g / mol, or ≧210,000 g / mol, or ≧220,000 g / mol, or ≧230,000 g / mol, or ≧240,000 g / mol.

[0126] a4) One of the compositions of a) to z3) above, wherein the first interpolymer has a weight average molecular weight Mw of ≦360,000 g / mol, or ≦350,000 g / mol, or ≦340,000 g / mol, or ≦330,000 g / mol, or ≦320,000 g / mol.

[0127] b4) Any one of the compositions of a) to a4) above, wherein the first interpolymer has a z-average molecular weight Mz of ≧400,000 g / mol, or ≧410,000 g / mol, or ≧420,000 g / mol, or ≧430,000 g / mol, or ≧440,000 g / mol, or ≧450,000 g / mol, or ≧460,000 g / mol.

[0128] c4) Any one of the compositions of a) to b4) above, wherein the first interpolymer has a z-average molecular weight Mz of ≦700,000 g / mol, or ≦690,000 g / mol, or ≦680,000 g / mol, or ≦670,000 g / mol, or ≦660,000 g / mol, or ≦650,000 g / mol, or ≦640,000 g / mol.

[0129] d4) Any one of the compositions of a) to c4) above, wherein the first interpolymer has a molecular weight ratio Mz / Mn of ≧4.00, or ≧4.05, or ≧4.10, or ≧4.15, or ≧4.20.

[0130] e4) Any one of the compositions of a) to d4) above, wherein the first interpolymer has a molecular weight ratio Mz / Mn of ≦5.00, or ≦4.90, or ≦4.80, or ≦4.70, or ≦4.60.

[0131] f4) Any one of the compositions of a) to e4) above, wherein the first interpolymer has a molecular weight ratio Mz / Mw of ≧1.60, or ≧1.65, or ≧1.70, or ≧1.75, or ≧1.80, or ≧1.85, or ≧1.90.

[0132] g4) Any one of the compositions of a) to f4) above, wherein the first interpolymer has a molecular weight ratio Mz / Mw of ≦2.35, or ≦2.30, or ≦2.25, or ≦2.20, or ≦2.15, or ≦2.10, or ≦2.05.

[0133] h4) One of the compositions of a) to g4) above, wherein the first interpolymer has a V0.1 (0.1 rad / s, 190 °C) of ≥ 280,000 Pa·s, or ≥ 285,000 Pa·s, or ≥ 290,000 Pa·s, or ≥ 295,000 Pa·s, or ≥ 300,000 Pa·s, or ≥ 305,000 Pa·s, or ≥ 310,000 Pa·s.

[0134] i4) One of the compositions of a) to h4) above, wherein the first interpolymer has a V0.1 (0.1 rad / s, 190 °C) of ≤ 600,000 Pa·s, or ≤ 595,000 Pa·s, or ≤ 590,000 Pa·s, or ≤ 585,000 Pa·s, or ≤ 580,000 Pa·s, or ≤ 575,000 Pa·s.

[0135] j4) One of the compositions of a) to i4) above, wherein the first interpolymer has a V100 (100 rad / s, 190 °C) of ≥ 6,000 Pa·s, or ≥ 6,500 Pa·s, or ≥ 7,000 Pa·s, or ≥ 7,500 Pa·s, or ≥ 8,000 Pa·s.

[0136] k4) One of the compositions of a) to j4) above, wherein the first interpolymer has a V100 (100 rad / s, 190 °C) of ≤ 12,000 Pa·s, or ≤ 11,500 Pa·s, or ≤ 11,000 Pa·s, or ≤ 10,500 Pa·s, or ≤ 10,000 Pa·s, or ≤ 9,500 Pa·s.

[0137] l4) One of the compositions of a) to k4) above, wherein the first interpolymer has a rheology ratio (RR) of ≥ 20.0, or ≥ 22.0, or ≥ 24.0, or ≥ 26.0, or ≥ 28.0, or ≥ 30.0, or ≥ 32.0, or ≥ 34.0, or ≥ 36.0.

[0138] m4) Any one of the compositions of a) to l4) above, wherein the first interpolymer has a rheology ratio (RR) of ≦80.0, or ≦75.0, or ≦70.0, or ≦68.0, or ≦66.0, or ≦64.0, or ≦62.0.

[0139] n4) Any one of the compositions of a) to m4) above, wherein the first interpolymer has a tandelta of ≧0.80, or ≧0.85, or ≧0.90, or ≧0.95, or ≧1.00, or ≧1.05.

[0140] o4) Any one of the compositions of a) to n4) above, wherein the first interpolymer has a tandelta of ≦1.50, or ≦1.45, or ≦1.40, or ≦1.35, or ≦1.30, or ≦1.25, or ≦1.20.

[0141] p4) Any one of the compositions of a) to o4) above, wherein the first interpolymer has a deltadelta of ≧20.0, or ≧22.0, or ≧24.0, or ≧26.0.

[0142] q4) Any one of the compositions of a) to p4) above, wherein the first interpolymer has a delta of ≦50.0, or ≦45.0, or ≦40.0, or ≦38.0, or ≦36.0, or ≦34.0, or ≦32.0, or ≦30.0.

[0143] r4) Any one of the compositions of a) to q4) above, wherein the first interpolymer is EPDM.

[0144] s4) Any one of the compositions of a) to r4) above, wherein the non-conjugated polyene of the first interpolymer is ENB.

[0145] t4) The composition of s4) above, wherein the first interpolymer contains, in polymerized form, ≧5.00 wt%, or ≧5.50 wt%, or ≧6.00 wt%, or ≧6.05 wt%, or ≧6.10 wt%, or ≧6.15 wt%, or ≧6.20 wt%, or ≧6.25 wt% of ENB based on the weight of the first interpolymer.

[0146] u4) The composition of s4) or t4) above, wherein the first interpolymer contains, in polymerized form, ≦7.00 wt%, or ≦6.90 wt%, or ≦6.80 wt%, or ≦6.75 wt%, or ≦6.70 wt%, or ≦6.65 wt%, or ≦6.60 wt% of ENB based on the weight of the first interpolymer.

[0147] v4) The composition of any one of a) to u4) above, wherein the first interpolymer contains, in polymerized form, ≧60.0 wt%, or ≧62.0 wt%, or ≧64.0 wt%, or ≧66.0 wt%, or ≧68.0 wt%, or ≧70.0 wt% of C2 (ethylene) based on the weight of the first interpolymer.

[0148] w4) The composition of any one of a) to v4) above, wherein the first interpolymer contains, in polymerized form, ≦84.0 wt%, or ≦82.0 wt%, or ≦80.0 wt%, or ≦78.0 wt%, or ≦76.0 wt%, or ≦74.0 wt% of C2 (ethylene) based on the weight of the first interpolymer.

[0149] x4) Any one of the compositions of a) to w4) above, wherein the first interpolymer has a "13C NMR% peak area" which is {[(13C NMR peak area of 21.3 ppm to 22.0 ppm) divided by (total integrated area of 19.5 ppm to 22.0 ppm)] × 100}, that is, when determined by 13C NMR, it is ≥ 4.0%, or ≥ 5.0%, or ≥ 6.0%, or ≥ 7.0%, or ≥ 8.0%, or ≥ 9.0%, or ≥ 10.0%, or ≥ 11.0%, or ≥ 12.0%.

[0150] y4) Any one of the compositions of a) to x4) above, wherein the first interpolymer has a "13C NMR% peak area", that is, when determined by 13C NMR, it is ≤ 30.0%, or ≤ 25.0%, or ≤ 20.0%.

[0151] z4) Any one of the compositions of a) to y4) above, wherein the first interpolymer has a Tm value of ≥ 50.0 °C, or ≥ 55.0 °C, or ≥ 60.0 °C, or ≥ 62.0 °C, or ≥ 64.0 °C, or ≥ 66.0 °C, or ≥ 68.0 °C.

[0152] a5) Any one of the compositions of a) to z4) above, wherein the first interpolymer has a Tm value of ≤ 90.0 °C, or 85.0 °C, or ≤ 80.0 °C, or ≤ 78.0 °C, or ≤ 76.0 °C, or ≤ 74.0 °C.

[0153] b5) Any one of the compositions of a) to a5) above, wherein the first interpolymer has a Tg value of ≥ -40.0 °C, or ≥ -38.0 °C, or ≥ -36.0 °C, or ≥ -34.0 °C, or ≥ -32.0 °C, or ≥ -30.0 °C.

[0154] c5) Any one of the compositions of a) to b5) above, wherein the first interpolymer has a Tg value of ≤ -20.0 °C, or ≤ -22.0 °C, or ≤ -24.0 °C.

[0155] d5) Any one of the compositions of a) to c5) above, wherein the first interpolymer has a Tc value of ≥ 40.0 °C, or ≥ 42.0 °C, or ≥ 44.0 °C, or ≥ 46.0 °C, or ≥ 48.0 °C, or ≥ 50.0 °C.

[0156] e5) Any one of the compositions of a) to d5) above, wherein the first interpolymer has a Tc value of ≤ 70.0 °C, or ≤ 68.0 °C, or ≤ 66.0 °C, or ≤ 64.0 °C, or ≤ 62.0 °C, or ≤ 60.0 °C.

[0157] f5) Any one of the compositions of a) to e5) above, wherein the first interpolymer has a crystallinity % of ≥ 10.0%, or ≥ 12.0%, or ≥ 14.0%, or ≥ 16.0%, or ≥ 18.0%, or ≥ 20.0%.

[0158] g5) Any one of the compositions of a) to f5) above, wherein the first interpolymer has a crystallinity % of ≤ 36.0%, or ≤ 34.0%, or ≤ 32.0%, or ≤ 30.0%, or ≤ 28.0%, or ≤ 26.0%.

[0159] h5) Any one of the compositions of a) to g5) above, wherein the composition contains an interpolymer composition of ≥ 18.0 wt%, or ≥ 20.0 wt%, or ≥ 22.0 wt%, or ≥ 24.0 wt%, or ≥ 26.0 wt% based on the weight of the composition.

[0160] i5) Any one of the compositions of a) to h5) above, wherein the composition contains an interpolymer composition of ≤ 40.0 wt%, or ≤ 38.0 wt%, or ≤ 36.0 wt%, or ≤ 34.0 wt%, or ≤ 32.0 wt%, or ≤ 30.0 wt% based on the weight of the composition.

[0161] j5) Any one of the compositions of a) to i5) above, wherein the composition is formed from a filler composition containing kaolinite or further contains a calcined filler.

[0162] k5) The composition of j5) above, wherein the filler composition further contains silica.

[0163] l5) The composition of j5) or k5) above, wherein the weight ratio of the calcined filler to the interpolymer composition is ≧0.80, or ≧0.85, or ≧0.90, or ≧0.95, or ≧1.00, or ≧1.05.

[0164] m5) Any one of the compositions of j5) to l5) above, wherein the weight ratio of the calcined filler to the interpolymer composition is ≦1.30, or ≦1.25, or ≦1.20, or ≦1.15, or ≦1.10.

[0165] n5) Any one of the compositions of j5) to m5) above, wherein the calcined filler is surface-treated with a composition containing mercaptosilane, alkylsilane, vinylsilane, epoxy, or aminosilane.

[0166] o5) Any one of the compositions of a) to n5) above, wherein the composition further contains carbon black.

[0167] p5) The composition of o5) above, wherein the weight ratio of carbon black to the interpolymer composition is ≧0.40, or ≧0.45, or ≧0.50, or ≧0.55, or ≧0.60, or ≧0.65, or ≧0.70, or ≧0.75.

[0168] q5) The composition of o5) or p5) above, wherein the weight ratio of carbon black to the interpolymer composition is ≦1.10, or ≦1.05, or ≦1.00, or ≦0.95, or ≦0.90, or ≦0.85, or ≦0.80.

[0169] r5) Any one of the compositions of o5) to q5) above, wherein the weight ratio of carbon black to the calcined filler is ≥ 0.50, or ≥ 0.55, or ≥ 0.60, or ≥ 0.65.

[0170] s5) Any one of the compositions of o5) to r5) above, wherein the weight ratio of carbon black to the calcined filler is ≤ 0.90, or ≤ 0.85, or ≤ 0.80, or ≤ 0.75, or ≤ 0.70.

[0171] t5) Any one of the compositions of a) to s5) above, wherein the composition further contains oil.

[0172] u5) The composition of t5) above, wherein the weight ratio of oil to the interpolymer composition is ≥ 0.55, or ≥ 0.60, or ≥ 0.65, or ≥ 0.70.

[0173] v5) The composition of t5) or u5) above, wherein the weight ratio of oil to the interpolymer composition is ≤ 0.90, or ≤ 0.85, or ≤ 0.80, or ≤ 0.75.

[0174] w5) Any one of the compositions of a) to v5) above, having a Mooney viscosity (ML(1+4) at 100 °C) of ≥ 10, or ≥ 12, or ≥ 14, or ≥ 16, or ≥ 18, or ≥ 20.

[0175] x5) Any one of the compositions of a) to w5) above, having a Mooney viscosity (ML(1+4) at 100 °C) of ≤ 40, or ≤ 38, or ≤ 36, or ≤ 34, or ≤ 32, or ≤ 30.

[0176] y5) Any one of the compositions of a) to x5) above, wherein the composition further contains a crosslinking agent.

[0177] z5) The composition according to y5), wherein the crosslinking agent comprises sulfur, one or more activators, and / or one or more accelerators, and further sulfur.

[0178] a6) The composition according to z5), wherein the crosslinking agent is present in an amount of 0.5 phr to 18 phr, or 5.0 phr to 18 phr, or 12 phr to 18 phr based on 100 parts of the interpolymer composition.

[0179] b6) A crosslinked composition formed from any one of the compositions of a) to a6).

[0180] c6) Any one of the compositions of a) to b6), wherein the composition has a Shore A hardness of ≧70, or ≧71, or ≧72, or ≧73.

[0181] d6) Any one of the compositions of a) to c6), wherein the composition has a maximum tensile strength (100%) of ≧4 MPa, or ≧5 MPa, or ≧6 MPa.

[0182] e6) Any one of the compositions of a) to d6), wherein the composition has a tear strength of ≧15.0 N / m, or ≧15.2 N / m, or ≧15.4 N / m.

[0183] f6) Any one of the compositions of a) to e6), wherein the composition has a modulus of elasticity (100%) of ≧2.10 MPa, or ≧2.20 MPa, or ≧2.30 MPa, or ≧2.40 MPa.

[0184] g6) A crosslinked composition formed from any one of the compositions of a) to f6).

[0185] h6) An article comprising at least one component formed from any one of the compositions of a) to g6).

[0186] i6) The article according to h6) above, wherein the article is an automotive part.

[0187] j6) The article according to h6) or i6) above, wherein the article is an extruded article (e.g., extruded profile), an injection molded article, or a thermoformed article, and a further extruded article (e.g., extruded profile).

[0188] k6) The article according to any one of h6) to j6) above, wherein the article is selected from a weatherstrip, a hose (e.g., automotive hose), a belt (e.g., automotive belt), building materials, a roofing film, a jacket for wires and cables, a flooring material, computer parts, a gasket, or a tire.

[0189] Test method Gel permeation chromatography The chromatography system was composed of a high-temperature GPC chromatograph of PolymerChar GPC-IR (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 were four Agilent "Mixed A" 30 cm, 20 micrometer linear mixed-bed columns, and a 20 micrometer pre-column. The chromatography solvent was 1,2,4-trichlorobenzene containing "200 ppm of butylated hydroxytoluene (BHT)". The solvent source was nitrogen-injected. The injection volume was 200 microliters and the flow rate was 1.0 milliliter / minute.

[0190] Calibration of the GPC column set was performed using "21 narrow molecular weight distribution polystyrene standards" placed in six "cocktail" mixtures having molecular weights in the range of 580 to 8,400,000 g / mol and separated by at least one order of magnitude between individual molecular weights. The standards were purchased from Agilent Technologies. The polystyrene standards were prepared at 0.025 grams in 50 milliliters of solvent for molecular weights of 1,000,000 g / mol and above, and 0.05 grams in 50 milliliters of solvent for molecular weights below 1,000,000 g / mol. The polystyrene standards were dissolved at 80 °C for 30 minutes with gentle stirring. The peak molecular weight of the polystyrene standards was converted to polyethylene molecular weight using Equation 1 (described in Williams and Ward, J. Polym. Sci., Polym. Let., 6, 621 (1968)): M ポリエチレン =A×(M ポリスチレン ) B (Equation 1), where M is the molecular weight, A has a value of 0.4315, and B is equal to 1.0.

[0191] A fifth-degree polynomial was used to fit each polyethylene equivalent calibration point. A slight adjustment (about 0.375 - 0.445) was made to A to correct the column resolution and band broadening effects so that a linear homopolymer polyethylene standard gave 120,000 Mw.

[0192] The total plate count of the GPC column set was performed with decane (prepared at "0.04 g in 50 milliliters of TCB" and dissolved for 20 minutes with gentle stirring). The plate count (Equation 2) and symmetry (Equation 3) were measured with a "200 microliter injection" according to the following equations.

Number

Number

[0193] The sample was prepared semi-automatically with PolymerChar "Instrument Control" Software. The sample was aimed at a target weight of "2 mg / ml", and the solvent (containing 200 ppm of BHT) was previously nitrogen-injected through a PolymerChar high-temperature autosampler and added to a vial capped with a septum. The sample was dissolved at 160 °C for 2 hours with "low-speed" shaking. The calculations of Mn(GPC), Mw(GPC), and Mz(GPC) were based on GPC results using the internal IR5 detector (measurement channel) of a PolymerChar GPC-IR chromatograph according to formulas 4 - 6, and subtracting the baseline at each equally spaced data collection point (i) from the IR chromatogram using PolymerChar GPCOne (trademark) software, and using the polyethylene equivalent molecular weights obtained from the narrow standard calibration curve for point (i) from formula 1.

Number

Number

Number

[0194] To monitor the deviation over time, a flow marker (decane) was introduced into each sample via a micropump controlled by a PolymerChar GPC-IR system. This flow marker (FM) was used to linearly calibrate the pump flow rate (apparent flow rate) of each sample by matching the RV of each decane peak (RV(FM sample)) in the sample with that of the decane peak within a narrow standard calibration (RV(FM calibrated)). Then, any change in the time of the decane marker peak was assumed to be related to a linear shift within the overall flow rate of the run (effective flow rate). To facilitate the highest accuracy of the RV measurement of the flow marker peak, a least-squares fitting routine was used to fit the peak of the flow marker concentration chromatogram to a quadratic equation. Subsequently, the first derivative of the quadratic equation was used to determine the true peak position. After calibrating the system based on the flow marker peak, the effective flow rate (relative to the narrow standard calibration) was calculated using Equation 7. The processing of the flow marker peak was performed by PolymerChar GPCOne (trademark) software. The acceptable flow correction is such that the effective flow rate should be within + / - 1% of the nominal flow rate: Effective flow rate = Nominal flow rate * (RV(FM calibrated) / RV(FM sample)) (Equation 7).

[0195] Dynamic mechanical spectroscopy (DMS) Small-amplitude oscillatory shear was performed using a TA Instruments ARES equipped with "25 mm parallel plates" under nitrogen purge. The time from sample filling to the start of the test was set to 5 minutes for all samples. The experiments were carried out at 190 °C over a frequency range of 0.1 - 100 rad / s. The strain amplitude was adjusted to 1 - 3% based on the response of the sample. The stress response was analyzed from the perspectives of amplitude and phase, from which the storage modulus (G'), loss modulus (G"), and dynamic viscosity η *And tandelta could be calculated. Samples for dynamic mechanical spectroscopy were compression-molded disks of "25 mm in diameter × 3.3 mm in thickness", formed in an ambient atmosphere at 180 °C and a molding pressure of 10 MPa for 5 minutes, and then quenched between cooling platens (15 - 20 °C) for 2 minutes. Viscosities (V0.1, V100) and rheology ratios (V0.1 / V100 or RR) were recorded at 190 °C, respectively.

[0196] Mooney viscosity of the polymer composition The Mooney viscosity (ML1+4) and stress relaxation (ML1+4+3 minutes) of each polymer composition were recorded at 100 °C (large rotor) using an Alpha Technologies MV2000E viscometer according to ASTM D1646. The preheating time was 1 minute. The viscosity of each compounded composition was measured using an uncured sheet of approximately 25 grams (see experimental section).

[0197] Mooney viscosity of the polymer The Mooney viscosity (ML1+4 at 125 °C) of each polymer (and interpolymer composition) was measured according to ASTM 1646 with a preheating time of 1 minute and a rotor operating time of "4 minutes". The instrument was an Alpha Technologies Mooney Viscometer 2000. The sample size was approximately 25 grams.

[0198] Cure dynamics - MDR Cure characteristics were measured at 180 °C and an arc of 0.5 degrees using an Alpha Technologies Moving Die Rheometer (MDR) 2000 E according to ASTM D5289. The test period was 30 minutes. Each sample (6 - 8 grams) was cut from its respective uncured sheet (see experimental section). The reported values were ts2 (time to reach a "2 unit" increase in torque from ML), t90 (time to reach 90% of maximum cure), MH (maximum viscosity or maximum cure), and ML (minimum viscosity), as well as the cure rate index.

[0199] The Mooney scorch was measured according to ASTM D-1646 using an Alpha Technologies Mooney Viscometer 2000. The Mooney Viscometer was set at 125 °C and the Mooney scorch value was reported for the small rotor, where “x Mooney units (or torque units)” represents the time for the increase above the minimum viscosity (torque) (e.g., t3 is the time required to increase the viscosity by “3 torque units”). The total test time was 30 minutes including a 1-minute preheating time. The viscosity of each composition was measured from the respective uncured sheet, which was cured inside the viscometer, enabling the examination of the scorch characteristics. The samples were conditioned at room temperature for 24 hours before the test. t3, t18, and the cure index were reported according to ASTM D1646.

[0200] Tensile strength Tensile properties were measured according to ASTM D412 using a Zwick Roell Z010 device. Each dumbbell sample (type 5A) was cut from a compression molded (cured) plaque (t90 + 3 minutes, 180 °C, 100 bar, ambient atmosphere, 2 mm thick plaque) - see the experimental section. “t90” is the time until the sample reaches 90% of the maximum cure value as determined by the MDR. Tensile properties (tensile strength, modulus of elasticity, and elongation) were measured in the machine direction at room temperature (500 mm / min) according to method ASTM D-412.

[0201] Trauzer tear strength (or Die-T tear strength) The Trauzer tear strength was measured according to ASTM D624 type T (Trauzer tear specimen) on a Zwick Roell Z010 device with a moving speed of 100 mm / min. The test specimens were cut from a compression molded (cured) plaque (t90 + 3 minutes, 180 °C, 100 bar, ambient atmosphere, 2 mm thick plaque) - see the experimental section.

[0202] Shore A hardness The Shore A hardness was measured in accordance with ASTM D2240 using a three-layer compression-molded plaque (t90 + 3 minutes, 180 °C, 100 bar, ambient atmosphere, (10 cm × 10 cm × 2 mm) plaque, total thickness of three layers 6 mm). See the experimental section. The Shore A hardness was measured on a Shore A Durometer Model 2000 manufactured by INSTRON, equipped with a Durometer Stand Model 902. This method enables hardness measurements based on the initial indentation, or the indentation after a specified period, or both. Here, the indentation was measured after a specified time of 3 seconds.

[0203] Density of the cured polymer composition The density of each cured composition was determined in accordance with Archimedes' principle (ASTM B962-17). Each test sample (approximately 10 grams) was cut from a compression-molded (cured) plaque (t90 + 3 minutes, 180 °C, 100 bar, ambient atmosphere, plaque with a thickness of 2 mm) - see the experimental section. After immersion in isopropanol at room temperature, the test sample was dried and weighed.

[0204] Green strength The green strength properties were measured in accordance with ASTM D412 using a Zwick Roell Z010 device at a test speed of 500 mm / min, a preload of 0.2 N, and a temperature of 23 °C. Each dumbbell (type 5A) sample was cut from an uncured sheet and processed using a two-roll mill (90 °C). See the experimental section.

[0205] Differential scanning calorimetry (DSC) Differential scanning calorimetry (DSC) is used to measure the crystallinity of ethylene-based (PE) samples (including EPDM within the experimental section) and propylene-based (PP) samples. The sample (0.5 g) was compression molded into a film at 190 °C and 5000 psi for 2 minutes. Approximately 5 - 8 mg of the film sample was weighed and placed in a DSC pan. The lid was crimped onto the pan to ensure a sealed atmosphere. The sample pan was placed in the DSC cell and then heated at a rate of approximately 10 °C / min to a temperature of 180 °C for PE (230 °C for PP). The sample was held at this temperature for 3 minutes. Next, the sample was cooled at a rate of 10 °C / min to -90 °C for PE (-60 °C for PP) and held isothermally at that temperature for 3 minutes. Then, the sample was heated at a rate of 10 °C / min until completely melted (second heating). The percent crystallinity was calculated by dividing the heat of fusion (Hf) determined from the second heat curve by the theoretical heat of fusion of 292 J / g for PE (165 J / g for PP) and multiplying this amount by 100 (e.g., % crystallinity = (Hf / 292 J / g) × 100 for PE). Unless otherwise stated, the melting point (Tm) of each polymer was determined from the second heat curve and the crystallization temperature (Tc) was determined from the first cooling curve. The peak temperatures of Tm and Tc were each recorded.

[0206] Melt Index Measurement The melt index (I2) of ethylene-based polymers is measured according to ASTM D - 1238, condition 190 °C / 2.16 kg. The melt index (I5) of ethylene-based polymers is measured according to ASTM D - 1238, condition 190 °C / 5.0 kg. The melt index (I10) of ethylene-based polymers is measured according to ASTM D - 1238, condition 190 °C / 10.0 kg. The high load melt index (I21) of ethylene-based polymers is measured according to ASTM D - 1238, condition 190 °C / 21.0 kg. The melt flow rate (MFR) of propylene-based polymers is measured according to ASTM D - 1238, condition 230 °C / 2.16 kg.

[0207] Polymer Density The polymer density is measured according to ASTM D - 297.

[0208] FTIR Method for EPDM Composition Analysis An EPDM terpolymer containing ethylene, propylene, and 5-ethylidene-2-norbornene was analyzed using ASTM D3900 for ethylene content and ASTM D6047 for ethylidene-norbornene content.

[0209] 13C NMR Method for EPDM Composition Analysis Samples were prepared by adding approximately "2.6 g" of a "50 / 50 mixture of tetrachloroethane-d2 / orthodichlorobenzene" at "0.025 M" in chromium acetylacetonate (relaxant) to "0.2 g sample" in a 10 mm NMR tube. The sample was dissolved and homogenized by heating the tube and its contents to 150 °C. Data were collected using a Bruker 400 MHz spectrometer equipped with a Bruker Dual DUL high-temperature CryoProbe. Data were acquired using "160 scans per data file" and a 6-second pulse repetition delay at a sample temperature of 120 °C. Acquisition was performed using a spectral width of 25,000 Hz and a file size of 32K data points.

[0210] NMR spectral analysis of each sample composition was performed using the following analytical method. Quantification of the monomers present in EPDM can be calculated using the following equations (1 - 9). The calculation of the moles of ethylene normalizes the spectral region of 55.0 - 5.0 ppm to 1000 integration units. The contribution under the normalized integral area occupies only 7 of the ENB carbons. Due to concerns that the double bond may react at high temperatures, the peaks of the ENB diene at 111 ppm and 147 ppm are excluded from the calculation.

[0211] Equation 1 Mol E = (1000 - 3 * Mol P - 7 * Mol ENB) / 2, Equation 2 Mol ENB = CH3 (13.6 - 14.7 ppm), Formula 3: 3 moles of P=CH3 (19.5~22.0 ppm), Formula 4: Mole % of ethylene = (100 * moles of E) / (moles of E + moles of P + moles of ENB), Formula 5: Mole % of propylene = (100 * moles of P) / (moles of E + moles of P + moles of ENB), Formula 6: Mole % of ENB = (100 * moles of ENB) / (moles of E + moles of P + moles of ENB), Formula 7: Weight % of ethylene = (100 * moles of E * × 28) / (moles of E * × 28 + moles of P * × 42 + moles of ENB * × 120), Formula 8: Weight % of propylene = (100 * moles of P * × 42) / (moles of E * × 28 + moles of P * × 42 + moles of ENB * × 120), Formula 9: Weight % of ENB = (100 * moles of ENB * × 120) / (moles of E * × 28 + moles of P * × 42 + moles of ENB * × 120).

[0212] 13C NMR spectral analysis of EPDM can be used to quantify the level of stereoregularity (%mm). In one embodiment, each EPDM (the composition of the present invention) independently exhibits a peak area of 21.3~22.0 ppm (rmmr, mmmr, mmmm) that is more than 3.5% of the total integrated area of 19.5~22.0 ppm. The spectral data is referenced to the EEE backbone at 30 ppm. The peak response in this region is typically related to the propylene stereoregularity (%mm) incorporated in the EPDM. Similar analysis can be performed for other types of ethylene / α-olefin / non-conjugated polyene interpolymers.

[0213] Experiment Reagents and commercially available polymers SPHERON 6000A - carbon black, a reinforcing agent / filler, available from Cabot.

[0214] SILFIT Z91 - white (calcined) filler, available from Hoffmann Mineral GmbH.

[0215] SILFIT Z91 is a natural combination of heat - treated silica (particles) and kaolinite (lamellar).

[0216] SUNPAR 2280 - plasticizer / paraffin - based oil, available from R.E.Carroll, Inc.

[0217] RHENOGRAN ZnO - 70 - curing activator, available from Rhein Chemie.

[0218] Stearic acid - curing activator and processing aid, available from Loxiol.

[0219] RHENOGRAN CaO - 80 - desiccant, available from Rhein Chemie.

[0220] CARBOWAX PEG 4000 - processing aid (polyethylene glycol), available from The Dow Chemical Company.

[0221] STRUKTOL W33 - dispersant, available from Struktol.

[0222] RHENOGRAN RETARDER E - 80 - curing inhibitor, available from Rhein Chemie.

[0223] RHENOGRAN MBTS - 70 - curing accelerator, available from Rhein Chemie.

[0224] RHENOGRAN ZBEC - 70 - curing accelerator, available from Rhein Chemie.

[0225] RHENOGRAN TP-50 accelerator available from Rhein Chemie.

[0226] RHENOGRAN CBS-80 retarder available from Rhein Chemie.

[0227] RHENOGRAN CLD-80 sulfur donor available from Rhein Chemie.

[0228] RHENOGRAN S-80 curing agent available from Rhein Chemie.

[0229] NORDEL EPDM 4725P having a Mooney viscosity (ML1+4, 125 °C) of 25, a density of 0.88 g / cc, a mass percent ethylene of 70% (ASTM D3900), and a mass percent ENB of 4.9% (ASTM D6047). Available from The Dow Chemical Company.

[0230] KEP 510 EPDM having a Mooney viscosity (ML(1+4) 125 °C) of 23, an ethylene content of 71%, and an ENB content of 5.7%, available from Kumho Polychem Co., Ltd.

[0231] Typical synthesis of experimental EPDM Continuous polymerization The polymerization reaction was carried out under steady-state conditions, i.e., constant reactant concentrations of solvent, monomer, and catalyst and continuous feed, as well as constant recovery of unreacted monomer, solvent, and polymer. The reactor system was cooled and pressurized to prevent the formation of a vapor phase. The monomers were ethylene (CAS 74-85-1), propylene (CAS 115-07-1), and 5-ethylidene-2-norbornene, (ENB, CAS 16219-75-3). The polymer composition was produced by a solution polymerization process using a continuous stirred tank reactor followed by a loop reactor. Ethylene was introduced into a mixture of solvents of ISOPAR E (available from ExxonMobil). Propylene and 5-ethylidene-2-norbornene (ENB) were introduced into the reactor as reactor feed streams, respectively. The catalyst was fed separately to each reactor and activated in situ using cocatalyst 1 and promoter 2.

[0232] As a result, the outlet of each reactor was a mixture of polymer, solvent, and reduced levels of the initial monomers. The outlet of the first reactor was fed directly (unless sampled) to the second reactor. The molecular weight of the polymer was controlled by adjusting the temperature of each reactor, monomer conversion, and / or the addition of a chain terminator such as hydrogen. After polymerization, a small amount of water was introduced into the reactor outlet stream as a catalyst deactivator, and the reactor outlet stream was introduced into a flash vessel with a solids concentration increased by at least 100%. Next, a portion of each unreacted monomer, i.e., ENB, ethylene, and propylene, as well as the solvent, was recovered and recycled to the reactor feed as needed. See also U.S. Patent Nos. 5,977,251 and 6,545,088 and the references therein. The monomer feed rates, polymerization temperatures, and other conditions are listed in Tables 1 and 2 below. The polymer properties are listed in Table 3. The properties of the comparative polymers are listed in Table 4.

Table 1

Table 2

Table 3

Table 4

[0233] Composition The compounded polymer compositions are listed in Table 5 below.

Table 5

[0234] Each composition was mixed using a standard “upside down” mixing procedure in a HARBURG FREUDENBERGER internal mixer equipped with intermeshing rotors. After the addition of all additives, the interpolymer composition (EPDM) was added last. The “1.5 L net chamber” was filled to a 75% fill level. During the mixing cycle, the rotor speed was kept constant at 45 RPM. The feed temperature was 50 °C and the final composition was mixed either for 240 seconds or until the dropping temperature reached 110 °C, whichever came first. The composition was then homogenized on a two-roll mill (90 °C) for 3 minutes and sheeted out to form an uncured sheet. The rheological properties of each compounded composition are shown in Table 6.

Table 6

[0235] The green strength characteristics are shown in Table 7. See also Figure 1. Higher green strength is often required for the excellent dimensional stability of composite profiles extruded from compounded compositions. Typically, in electrically resistant EPDM-based formulations, the reduction of carbon black (CB) and the increase of non-reinforcing white fillers result in a decrease in the green strength of the compounded composition, and thus a decrease in the dimensional stability of the extruded profiles formed from such compositions. However, it has been discovered that the "low Mooney" compounded compositions of the present invention provide significantly higher green strength compared to the comparative compositions. This is also evident from the significantly higher elastic values at low elongation (25%, 50%, and 100%) for the compositions of the present invention. The curing characteristics and Mooney scorch are shown in Table 8.

Table 7

Table 8

[0236] Examples 1 and 2 of the present invention have higher "ML" values compared to the comparative compositions, which indicates a higher entanglement density of the compositions of the present invention. The two compositions of the present invention clearly showed significantly faster curing compared to the comparative compositions, as indicated by the lower ts2, t90, t3, and t18 values.

[0237] Garvey die extrusion - extruded profiles Garvey die extrusion was carried out using a THERMO HAAKE POLYLAB system associated with a HAAKE RHEOMEX 104. The barrel was heated to 70 °C and the extruder was operated at a rotational speed of 50 RPM. Each polymer composition compounded was extruded through an ASTM extrusion Garvey die in accordance with ASTM D2230. The temperature of the die was set at 100 °C. The evaluation of the extruded profiles was carried out in accordance with ASTM D2230 evaluation system A. The results are shown in Table 9.

[0238] According to ASTM D2230, the evaluation of System A (visual observation of the target group samples) is based on four individual characteristics (expansion, edge, surface, corner), each ranked with a numerical value from 1 (bad) to 4 (excellent). The evaluation of "expansion" refers to swelling or porosity in the shaped material. "Edge" refers to the sharpness and continuity of the 30° edge. "Surface" refers to the smoothness of the surface. "Corner" refers to the sharpness and continuity of the corner. The composition of the present invention gave a much improved Garvey die evaluation compared to Comparative Composition A and a similar evaluation compared to Comparative Composition B. As seen in Table 9, the composition of the present invention forms a uniform extruded shaped material that maintains an excellent "System A" evaluation.

Table 9

[0239] Compression molded plaque The mechanical properties (hardness, tensile, tear) of the cured polymer composition were measured from the compression molded plaque. For each of the formulated compositions, samples of the uncured sheet (see above) were compression molded using a PHI (100 ton press) according to ASTM D3182. The desired mold (10 cm × 10 cm × 2 mm) was placed on the platen. The samples (uncured blankets) were cut slightly smaller than the dimensions of the individual mold cavities. Marks were made in the mill direction and the samples were labeled. The samples were placed into the preheated mold taking care to position them properly in the mill direction. The platen was closed. The molding pressure was 100 bar and the temperature was 180 °C. The curing time was specified, for example, as t90 + 3 minutes, where "t90" is the time until the sample reaches 90% of the maximum cure (MH) as determined by MDR. When the curing time was complete, the bottom platen opened automatically. The samples were removed and immediately placed in water to stop curing. The samples were conditioned at room temperature for 24 hours prior to testing. The mechanical properties are shown in Tables 10 and 11 (after heat aging in a hot air oven at 100 °C for 168 hours).

Table 10

Table 11

[0240] As shown in Table 10, the compositions of the present invention have excellent mechanical properties, as well as very excellent Shore A hardness and tear strength. As shown in Table 11, the compositions of the present invention maintain excellent mechanical properties after aging at 100 °C (168 hours). It can also be observed that both examples of the invention gave a Shore A hardness approximately +10 units higher for the same compounding recipe. This is very important for higher hardness compositions where a reduction in carbon black loading results in a decrease in the hardness of the cured composition. Note that certain GRC and BLS profiles require very high hardness (>90 Shore A). Some properties of the compositions of the present invention (e.g., Shore A hardness and modulus of elasticity 100%) improve after aging. The present application also relates to the following aspects. (1) A composition comprising an interpolymer composition, wherein the interpolymer composition comprises a first ethylene / alpha-olefin / non-conjugated polyene interpolymer and a second ethylene / alpha-olefin / non-conjugated polyene interpolymer, wherein the interpolymer composition has a Mooney viscosity (ML(1+4), 125°C) of <50 and a rheology parameter ((RR / Mn)×1000) of ≧0.60, a composition. (2) The composition according to (1) above, wherein the interpolymer composition has a rheology parameter ((RR / Mn)×1000) of ≦2.00. (3) The composition according to (1) or (2) above, wherein the interpolymer composition has a Mooney viscosity (ML(1+4), 125°C) of ≧10. (4) The composition according to any of the above, wherein the interpolymer composition has an RR / MWD ratio of ≧4.40. (5) The composition according to any of the above, wherein the interpolymer composition has a molecular weight distribution MWD of ≧3.60. (6) The composition according to any of the above, wherein the interpolymer composition has a molecular weight ratio Mz / Mn of ≦30.0. (7) The composition according to any of the above, wherein the interpolymer composition has a ratio {[(RR / Mn)×1000] インターポリマー組成物 / [(RR / Mn)×1000] 第1のインターポリマー } of ≧2.00. (8) The composition according to any of the above, wherein the interpolymer composition has a ratio {[RR / MWD] 第1のインターポリマー / [RR / MWD] インターポリマー組成物 } of ≧2.50. (9) The composition according to any of the above, wherein the interpolymer composition has a ratio {[Mn] 第1のインターポリマー / [Mn] インターポリマー組成物 } of ≧3.00. (10) The composition according to any of the above, wherein the first interpolymer is a first EPDM, the second interpolymer is a second EPDM, and the second EPDM is different from the first EPDM in at least one property selected from Mn, Mw, Mz, MWD, Mooney viscosity, V0.1, V100, RR, or any combination thereof. (11) The composition according to any of the above, wherein the non-conjugated polyene of the first interpolymer is ENB and the non-conjugated polyene of the second interpolymer is ENB. (12) The composition according to (11), wherein the average of the ENB of the first interpolymer and the ENB of the second interpolymer is ≧ 5.2% by weight based on the total weight of the first interpolymer and the second interpolymer. (13) A crosslinked composition formed from the composition according to any one of the above. (14) An article comprising at least one component formed from the composition according to any one of the above. (15) The article according to (14), wherein the article is an extruded article, an injection molded article, or a thermoformed article.

Claims

1. A composition comprising an interpolymer composition, wherein the interpolymer composition comprises a first ethylene / alpha-olefin / non-conjugated polyene interpolymer, and a second ethylene / alpha-olefin / non-conjugated polyene interpolymer, wherein the interpolymer composition has a Mooney viscosity (ML(1+4), 125 °C) of < 50, and has a rheology parameter ((RR / Mn)×1000) of ≧ 0.60, has a rheology parameter ((RR / Mn)×1000) of ≦ 2.00, has a ratio {[(RR / Mn)×1000] interpolymer composition / [(RR / Mn)×1000] first interpolymer} of ≧ 2.00, the non-conjugated polyene of the first interpolymer and the non-conjugated polyene of the second interpolymer are each selected from the group consisting of 1,4-hexadiene, 1,5-heptadiene, 5-methyl-1,4-hexadiene, 2-methyl-1,5-hexadiene, 6-methyl-1,5-heptadiene, 7-methyl-1,6-octadiene, 3,7-dimethyl-1,6-octadiene, 3,7-dimethyl-1,7-octadiene, 5,7-dimethyl-1,7-octadiene, 1,9-decadiene, mixed isomers of dihydromyrcene, 1,4-cyclohexadiene, 1,5-cyclooctadiene, dicyclopentadiene, 1,5-cyclododecadiene, tetrahydroindene, methyltetrahydroindene, 5-methylene-2-norbornene (MNB), 5-ethylidene-2-norbornene (ENB), 5-vinyl-2-norbornene (VNB), 5-propenyl-2-norbornene, 5-isopropylidene-2-norbornene, 5-(4-cyclopentenyl)-2-norbornene, 5-cyclohexylidene-2-norbornene and combinations thereof, the average of the non-conjugated polyene of the first interpolymer and the non-conjugated polyene of the second interpolymer is ≧ 5.2 wt% based on the total weight of the first interpolymer and the second interpolymer, a composition.

2. The composition according to claim 1, wherein the interpolymer composition has an RR / MWD ratio of ≧ 4.

40.

3. The composition according to claim 1 or 2, wherein the interpolymer composition has a molecular weight distribution MWD of ≧ 3.

60.

4. The first interpolymer is a first EPDM, the second interpolymer is a second EPDM, and the second EPDM is different from the first EPDM in at least one property selected from Mn, Mw, Mz, MWD, Mooney viscosity, V0.1, V100, RR, or any combination thereof. The composition according to any one of claims 1 to 3.

5. The non-conjugated polyene of the first interpolymer is ENB, and the non-conjugated polyene of the second interpolymer is ENB. The composition according to any one of claims 1 to 4.

6. A crosslinked composition formed from the composition according to any one of claims 1 to 5.

7. An article comprising at least one component formed from the composition according to any one of claims 1 to 5 or the crosslinked composition according to claim 6.

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