The invention is a polymer composition for film layer comprising less than 50 wt % of a copolymer of ethylene with silane group(s) containing units and at least 50 wt % of a thermoplastic polyolefine free from silane group(s) wherein the polymer composition has creep of less than 1 mm at 90° C., and an adhesion above 20 N/cm. The invention relates to a laminated article with at least one film layer of the polymer composition and a substrate.

A process for the synthesis of an ethylene/butadiene copolymer is provided. The process is continuous and comprises the following steps: a. feeding at least one stirred polymerization reactor with a mixture of ethylene, butadiene, hydrocarbon-based solvent and catalytic system allowing the formation of cyclic trans-1,2-cyclohexane units in the polymer chain with a mole ratio of ethylene to the sum of the ethylene and butadiene monomers ranging from 0.5 to 0.99; the concentration of ethylene and butadiene monomers in the polymerization reaction medium being less than 15% by weight; the operating pressure of the reactor is greater than or equal to the saturated vapour pressure of the polymerization reaction medium; and the polymerization temperature is greater than 90° C.; b. recovering the ethylene/butadiene copolymer, this copolymer comprising, statistically distributed, ethylene units, butadiene units and trans-1,2-cyclohexane units, the molar fraction of ethylene units in the copolymer being greater than or equal to 50%.

A process for the synthesis of an ethylene/butadiene copolymer is provided. The process is continuous and comprises the following steps: a. feeding at least one stirred polymerization reactor with a mixture of ethylene, butadiene, hydrocarbon-based solvent and catalytic system allowing the formation of cyclic trans-1,2-cyclohexane units in the polymer chain with a mole ratio of ethylene to the sum of the ethylene and butadiene monomers ranging from 0.5 to 0.99; the concentration of ethylene and butadiene monomers in the polymerization reaction medium being less than 15% by weight; the operating pressure of the reactor is greater than or equal to the saturated vapour pressure of the polymerization reaction medium; and the polymerization temperature is greater than 90° C.; b. recovering the ethylene/butadiene copolymer, this copolymer comprising, statistically distributed, ethylene units, butadiene units and trans-1,2-cyclohexane units, the molar fraction of ethylene units in the copolymer being greater than or equal to 50%.

An elastomeric composition suitable for use in layered articles like hoses and belts may include: 5 phr to 80 phr of a PEDM terpolymer comprising 55 wt % to 95 wt % propylene, 2.5 wt % to 40 wt % α-olefin, and 0.05 wt % to 25 wt % diene and having Mooney viscosity (ML(1+4)) of 5 MU to 90 MU; 20 phr to 95 phr of an ethylene-based copolymer selected from: (a) a crystalline ethylene-based copolymer comprising 60 wt % to 95 wt % ethylene, 0 wt % to 10 wt % of one or more dienes, and 5 wt % to 40 wt % C3 to C12 α-olefin, (b) an amorphous ethylene-based comprising 40 wt % to 59 wt % ethylene, 0 wt % to 10 wt % of one or more dienes, and 40 wt % to 60 wt % C3 to C12 α-olefin, and (c) a combination of (a) and (b); and 10 phr to 200 phr of a process oil.

An elastomeric composition suitable for use in layered articles like hoses and belts may include: 5 phr to 80 phr of a PEDM terpolymer comprising 55 wt % to 95 wt % propylene, 2.5 wt % to 40 wt % α-olefin, and 0.05 wt % to 25 wt % diene and having Mooney viscosity (ML(1+4)) of 5 MU to 90 MU; 20 phr to 95 phr of an ethylene-based copolymer selected from: (a) a crystalline ethylene-based copolymer comprising 60 wt % to 95 wt % ethylene, 0 wt % to 10 wt % of one or more dienes, and 5 wt % to 40 wt % C3 to C12 α-olefin, (b) an amorphous ethylene-based comprising 40 wt % to 59 wt % ethylene, 0 wt % to 10 wt % of one or more dienes, and 40 wt % to 60 wt % C3 to C12 α-olefin, and (c) a combination of (a) and (b); and 10 phr to 200 phr of a process oil.

The present invention relates to a supported catalyst for propylene polymerization in which a first transition metal compound contributing to the production of crystalline polypropylene and a second transition metal compound contributing to the production of rubbery polypropylene are co-supported, and a method for producing a polypropylene resin using same. By using the supported catalyst, according to the present invention, it is possible to produce, by a single step of propylene polymerization, a polypropylene resin in which crystalline polypropylene and rubbery polypropylene are simultaneously formed.

The present invention relates to a supported catalyst for propylene polymerization in which a first transition metal compound contributing to the production of crystalline polypropylene and a second transition metal compound contributing to the production of rubbery polypropylene are co-supported, and a method for producing a polypropylene resin using same. By using the supported catalyst, according to the present invention, it is possible to produce, by a single step of propylene polymerization, a polypropylene resin in which crystalline polypropylene and rubbery polypropylene are simultaneously formed.

Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazone or oxime curatives.

The present disclosure provides a process. In an embodiment, the process includes providing a neat ethylene/ propy-lene/non-conjugated polyene terpolymer (n-terpolymer) having a Mooney viscosity (ML (1+4) at 125C) less than 100 Mooney units (MU). The process includes exposing the n-terpolymer to electron beam radiation at a dosage from 0.2 megaRad (MRad) to 1.3 MRad. The process includes forming a branched ethylene/propylene/non-conjugated polyene terpolymer (b-terpolymer) having a Mooney viscosity ML (1+4) at 125C from 25 MU to 135 MU.

The present disclosure provides a process. In an embodiment, the process includes providing a neat ethylene/ propy-lene/non-conjugated polyene terpolymer (n-terpolymer) having a Mooney viscosity (ML (1+4) at 125C) less than 100 Mooney units (MU). The process includes exposing the n-terpolymer to electron beam radiation at a dosage from 0.2 megaRad (MRad) to 1.3 MRad. The process includes forming a branched ethylene/propylene/non-conjugated polyene terpolymer (b-terpolymer) having a Mooney viscosity ML (1+4) at 125C from 25 MU to 135 MU.