Ethylene-propylene-diene rubber composition with improved...

Details Ethylene-propylene-diene rubber composition with improved... Ethylene-propylene-diene rubber composition with improved...

2005-01-06

2008-09-09

Nutter, Nathan M (Department: 1796)

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

Synthetic resins

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

C525S232000, C525S240000

Reexamination Certificate

active

07423086

ABSTRACT:
Disclosed herein is an ethylene-propylene-diene EPDM rubber composition with improved adhesion properties. The ethylene-propylene-diene rubber composition comprises an EPDM rubber, a crystalline polyolefin, and a polyolefin containing at least one carbonyl group (—C═O) within the structure as an adhesion improver. The ethylene-propylene-diene rubber composition improves adhesion to a polar polymeric material. Specifically, the EPDM rubber composition comprises 100 phr of an EPDM rubber, 5˜40 phr of a polyolefin containing at least one carbonyl group and 10˜30 phr of a crystalline polyolefin resin.

REFERENCES:
patent: 6177516 (2001-01-01), Hudak
patent: 6221928 (2001-04-01), Kozma et al.
patent: 6921792 (2005-07-01), Kim et al.

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