Low compression set fluorosilicone rubber

Details Low compression set fluorosilicone rubber Low compression set fluorosilicone rubber

1988-09-26

1989-11-21

Marquis, Melvyn I.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523212, C08K 906

Patent

active

048823686

ABSTRACT:
A fluorosilicone rubber with low compression set and other physical properties which are either are not significantly effected or are improved are made by curing a composition of a polydiorganosiloxane having 3,3,3-trifluoropropylsiloxane units and endblocked with vinyl or silacyclopentenyl groups, a reinforcing silica having dimethyl(3,3,3-trifluoropropyl)siloxy units as the surface treatment, and a vinyl specific organic peroxide. The polydiorganosiloxane endblocking is done by reacting a silanol endblocked polymer with a silazane.

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patent: 4341888 (1982-07-01), Razzano
patent: 4683277 (1987-07-01), Maxson

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