Synthetic elastomer with improved chemical, aging and oil resist

Details Synthetic elastomer with improved chemical, aging and oil resist Synthetic elastomer with improved chemical, aging and oil resist

1987-12-14

1988-12-06

Seccuro, Carman J.

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

Synthetic resins

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

525315, 525268, 525267, 525243, 525237, 525211, 525197, 525194, 525193, 524483, 524482, C08F27900, C08L 2316, C08L 2326, C08L 900

Patent

active

047897082

ABSTRACT:
Ethylene propylene copolymer elastomers and ethylene propylene diene terpolymer elastomers are shown which, when cured, exhibit improved oil resistance and chemical aging properties at elevated temperatures and pressures. A previously polymerized liquid 1,2-polybutadiene is incorporated into the elastomer by chemical blending during the polymerization process. Such compositions are useful as electrical insulating materials for use under extreme environmental conditions, particularly in wire and cable constructions.

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