Ethylene copolymer composition

Details Ethylene copolymer composition Ethylene copolymer composition

2005-05-17

2005-05-17

Lipman, Bernard (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C428S036920

Reexamination Certificate

active

06894120

ABSTRACT:
An ethylene copolymer composition comprising an ethylene/α-olefin copolymer, A-4, of ethylene with an α-olefin of 3 to 20 carbon atoms in an amount of 65-98% by weight, whose melt tension, MT, at 190° C. and MFR satisfy the relation MT>2.2×MFR−0.84, and at least one crystalline polyolefin, B-2, in an amount of 1-40% by weight selected from the group consisting of, B-I, an ethylene homopolymer or a copolymer of ethylene with an α-olefin of 3 to 20 carbon atoms, prepared using a non-metallocene type catalyst, B-II, a propylene hompolymer or a copolymer of propylene with at least one olefin selected from ethylene and an α-olefin of 4 to 20 carbon atoms, and, B-III, a homopolymer of an α-olefin of 4 to 20 carbon atoms or a copolymer of α-olefins of 4 to 20 carbon atoms, and articles made from the composition.

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