Resin compositions and use of the same

Details Resin compositions and use of the same Resin compositions and use of the same

2005-08-30

2005-08-30

Nutter, Nathan M. (Department: 1711)

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

Synthetic resins

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

C525S240000

Reexamination Certificate

active

06936660

ABSTRACT:
Soft resin compositions comprising a polyethylene resin (A) and an ethylene/α-olefin random copolymer (B) comprising ethylene and an α-olefin having 3 to 20 carbon atoms at a specific proportion, or an ethylene/α-olefin copolymer resin composition comprising a linear ethylene/α-olefin copolymer (A-α) comprising ethylene and an α-olefin having 4 to 20 carbon atoms and a long-chain branched ethylene/α-olefin random copolymer (B-α) comprising ethylene and an α-olefin having 3 to 20 carbon atoms in a specific proportion, wherein a density and MFR of the polyethylene resin (A) and the copolymer (A-α), and a density, MFR, intrinsic viscosity, glass transition temperature crystallinity, molecular weight distribution, B value and gη* values of the copolymers (B) and (B-α) are each in a specific range.

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Kissin, “Olefin Polymers,” Kirk-Othmer Encyclopedia of Chemical Technology, Fourth Ed., vol. 17, John Wiley & Sons, New York, pp 756-758, (1996).
U.S. Appl. No. 08/327,156, filed Oct. 21, 1994.

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