US 5,292,848 AGranted

Fluorosilicone composition and its gellike cured product

AssigneeShin-Etsu Chemical Co., Ltd.

InventorsMasayuki Ikeno, Miyuki Tanaka, Hiroyasu Hara, Hironao Fujiki, Shinichi Sato, Hiroshi Inomata

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Abstract

The present fluorosilicone composition is an addition reaction curable composition that uses, as an alkenyl group-containing organopolysiloxane, a fluorine-containing organopolysiloxane represented by the following general formula (1): ##STR1## wherein R represents a vinyl group, R.sup.1 represents an alkyl group or a phenyl group, R.sup.2 represents a group represented by the following formula (2): ##STR2## in which p is an integer of 2 to 8 and q is an integer of 1 to 10, and n and m are each a positive integer. This composition can form a gellike cured product particularly excellent in acid resistance.

Claims7

Dependent claims

A fluorosilicone composition, comprising:

(A) an alkenyl group-containing organopolysiloxane represented by the following general formula (1):
##STR16## wherein R represents an alkenyl group, R.sup.1 's, which may be the same or different, each represent an alkyl group having 1 to 8 carbon atoms or a phenyl group, R.sup.2 represents a group represented by the following formula (2) ##STR17## in which p is an integer of 2 to 8 and q is an integer of 1 to 10, and n and m are each a positive integer,
(B) a hydrogensiloxane having silicon-bonded hydrogen atoms represented by the following general formula (3):
##STR18## wherein R.sup.1 has the same meaning as defined above, r is an integer of 2 or 3, and s is a positive integer, and
(C) a platinum family metal catalyst.

2 more elements

Dependencies are inferred from the claim text.