Back to results
US 6,673,876 B2Granted
Fluorinated curable compositions
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsKenichi Fukuda, Mikio Shiono
Life of this patent
Estimating the term…
Abstract
A fluorinated curable composition in which a fluorinated organohydrogensiloxane as the curing agent is well compatible with a linear polyfluoro compound as the base yields a cured gel having good adhesion to substrates and improved chemical and solvent resistance.
Claims3
A fluorinated curable composition comprising as essential components,
- (A) a linear polyfluoro compound of the following general formula (1):
- CH2═CH—(X)a-Rf1-(X)a—CH═CH2 (1)
- wherein X is independently —CH2—, —CH2O—, —CH2OCH2— or —Y—NR1—CO—
- wherein Y is —CH2— or a divalent group represented by
- and R1 is hydrogen or a substituted or unsubstituted monovalent hydrocarbon group, Rf1 is a divalent perfluoropolyether group, and “a” is independently equal to 0 or 1,
- (B) a fluorinated organohydrogensiloxane of the following general formula (2):
- wherein X and “a” are as defined above, Rf2 is a monovalent perfluoropolyether group, Z is a divalent hydrocarbon group, Rf3 is a divalent perfluoroalkylene or perfluoropolyether group, w and x each are an integer of up to 3, w+x is from 2 to 5, y is 0 or 1, and a+y is at least 1, and
- (C) a catalytic amount of a platinum group metal catalyst.
5 more elements
Dependencies are inferred from the claim text.