Patent ID: 6515094
Filing Date: 2003-02-04
Classification: C08L,C09D

Abstract:
A curable composition comprising:a. an amino-modified organopolysiloxane of the average general formula: Q2RSiOâ€”(SiR2O)xâ€”(SiRR1O)yâ€”SIRQ2â€ƒâ€ƒ(I) wherein Q is R or R1; R is selected from the group consisting of monovalent hydrocarbon groups having 1 to 10 carbon atoms; R1 is R2NHR3; each R2 is the same or different and is a divalent C1-C6 alkylene group, optionally substituted with a hydroxyl group; R3 is alkyl of C1-C6, an alkyl amine of C1-C6 or an alkanolarriine of C1-C6; x is zero or a positive number; y is a positive number and x + y are less than 1,100;b. an epoxy-modified organopolysiloxane of the average general formula: Qâ€²2RSiOâ€”(SiR2O)xâ€”(SiRR4O)yâ€”SIRQâ€²2â€ƒâ€ƒ(II) wherein Qâ€² is R or R4; x, y and R are as previously defined; R4 is R5-R6; R5 is a divalent hydrocarbon group with at least two carbons, which may be may be interrupted by an oxygen atom; R6is an epoxide-containing group; andc. a curing catalyst comprising a catalytically effective amount of Lewis or Bronsted acid.