Acrylic rubber composition

Details Acrylic rubber composition Acrylic rubber composition

1990-11-29

1992-11-24

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

526279, 524263, 524267, C08F 3008, C08K 554

Patent

active

051662442

ABSTRACT:
A novel acrylic rubber composition is proposed which has excellent moldability and good releasability from the metallic surfaces of milling rollers for the compounding works and metal molds for shaping and vulcanizing the composition into vulcanizates. The composition comprises: (a) an acrylic copolymer as the rubber base; (b) carbon black or a finely divided silica filler as a reinforcing agent; and (c) an organopolysiloxane having, in a molecule, at least one carboxyl-functional group such as .omega.-carboxyl undecyl group, bonded to the silicon atom, which can be prepared, for example, by the hydrosilation reaction between a SiH-containing organopolysiloxane and an alkyl undecylenate followed by hydrolysis of the ester group into carboxyl group.

REFERENCES:
patent: 4722975 (1988-02-01), Itoh et al.

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