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US 6,787,662 B2Granted
Fluorinated organosilicon compounds
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsNoriyuki Koike, Hiromasa Yamaguchi
Life of this patent
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Abstract
Fluorinated organosilicon compounds having perfluoroalkyl or perfluorooxyalkyl radicals and at least four SiH radicals are highly compatible with base polymers having high fluorine contents and useful as a crosslinking agent therefor to produce addition cured rubber having desired hardness and modulus.
Claims20
A fluorinated organosilicon compound of the following general formula (1):
- wherein R is independently —(CH2)a—Rf wherein Rf is a monovalent perfluoroalkyl or perfluorooxyalkyl radical having 4 to 12 carbon atoms, and “a” is 2 or 3, X is —OSi(CH3)2H, and n is 0 or 1.
A method of making a fluorinated organosilicon compound of the following formula (1)
- wherein R is independently —(CH2)a—Rf wherein Rf is a monovalent perfluoroalkyl or perfluorooxyalkyl radical having 4 to 12 carbon atoms, and “a” is 2 or 3, X is —OSi(CH3)2H, and n is 0 or 1;
- comprising
- co-hydrolyzing a trichlorosilane having a fluoroalkly or fluorooxyalkyl substituent radical and dimethylchlorosilane.
Dependencies are inferred from the claim text.