Fluorine-containing silicone rubber composition
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsHiroshi Inomata, Hirofumi Kishita, Shinichi Sato, Noriyuki Koike, Takashi Matsuda
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Abstract
A fluorine-containing silicone rubber composition comprising (A) a fluorocarbonsiloxane having the following general formula (1): ##STR1## wherein a to d is a positive integer, R.sup.1 and R.sup.2 are a monovalent hydrocarbon group free of aliphatic unsaturated groups, R.sup.3 is a monovalent hydrocarbon group containing an aliphatic unsaturated bond, Rf.sup.1 is a fluorine-containing alkylene polyether group, and (B) an organic peroxide. The composition is excellent in solvent resistance, chemical resistance and water and oil repellency, and can be molded by press molding and has been improved in respect of insufficient curing.
Claims7
A fluorine-containing silicone rubber composition comprising:
- (A) fluorocarbonsiloxane having the following general formula (1):
- ##STR11## wherein a is an integer of 2 to 300,
- b is an integer of 0 to 300,
- c is an integer of 0 to 5,000,
- d is a integer of 2 to 8,
- R.sup.1 and R.sup.2 are may be the same or different and each a substituted or unsubstituted monovalent hydrocarbon group free of aliphatic unsaturated groups,
- R.sup.3 is a substituted or unsubstituted monovalent hydrocarbon group containing an aliphatic unsaturated bond,
- Rf.sup.1 is a fluorine-containing organic group having the following general formula (2):
- ##STR12## wherein f and h are each an integer of 1 to 5, g is an integer of 0 to 8, and e and i are each an integer of 0 to 1, provided that the number of the entire carbon atoms contained ranges from 11 to 30,
- X is a triorganosiloxy group having the following general formula (3):
- ##STR13## where R.sup.4, R.sup.5 and R.sup.6 may be the same or different and each a monovalent hydrocarbon group having 1 to 8 carbon atoms, and
- (B) an organic peroxide.
Dependencies are inferred from the claim text.