Fluorine-containing silicone rubber composition
First Claim
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1. 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,R1 and R2 are may be the same or different and each a substituted or unsubstituted monovalent hydrocarbon group free of aliphatic unsaturated groups,R3 is a substituted or unsubstituted monovalent hydrocarbon group containing an aliphatic unsaturated bond,Rf1 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 R4, R5 and R6 may be the same or different and each a monovalent hydrocarbon group having 1 to 8 carbon atoms, and(B) an organic peroxide.
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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, R1 and R2 are a monovalent hydrocarbon group free of aliphatic unsaturated groups, R3 is a monovalent hydrocarbon group containing an aliphatic unsaturated bond, Rf1 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.
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Citations
7 Claims
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1. A fluorine-containing silicone rubber composition comprising:
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(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, R1 and R2 are may be the same or different and each a substituted or unsubstituted monovalent hydrocarbon group free of aliphatic unsaturated groups, R3 is a substituted or unsubstituted monovalent hydrocarbon group containing an aliphatic unsaturated bond, Rf1 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 R4, R5 and R6 may be the same or different and each a monovalent hydrocarbon group having 1 to 8 carbon atoms, and(B) an organic peroxide. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification