Compositions based on fluoroelastomers and on modified olefinic

Details Compositions based on fluoroelastomers and on modified olefinic Compositions based on fluoroelastomers and on modified olefinic

1988-06-17

1989-06-20

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...

525102, 525199, 524504, C08L 5106, C08L 2716, C08L 2718, C08L 2722

Patent

active

048409944

ABSTRACT:
Fluoroelastomer compositions vulcanizable with peroxides having improved processability and compatibility properties and comprising, as additives, ethylene polymers and ethylene-propylene or ethylene-butene copolymers having, along the polymer chain, ester groups of the type--COOR where R is a C.sub.1 -C.sub.8 alkyl, wherein the ester groups amount to 0.5-10% by weight as referred to the total polymer. Such polymer additives contain the ester group bound to a carbon atom of the chain either directly or through a --CH.sub.2 -- or in the form ##STR1## where R is a C.sub.1 -C.sub.8 alkyl group.

REFERENCES:
patent: 4197380 (1980-04-01), Chao et al.
patent: 4575533 (1986-03-01), Horie et al.
patent: 4575537 (1986-03-01), Ueno

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