Room temperature vulcanizable polydiorganosiloxane compositions

Details Room temperature vulcanizable polydiorganosiloxane compositions Room temperature vulcanizable polydiorganosiloxane compositions

C - Chemistry, Metallurgy

08

L

402/9

C08L 83/06 (2006.01) C08L 83/04 (2006.01)

Patent

CA 1317405

- 26 - ABSTRACT Novel poly-(alkoxysilylalkyl)amines are provided useful in room temperature vulcanizable polydiorganosiloxane compositions comprising an x,w-dihydroxypolydiorganosiloxane and the poly-(alkoxysilylalkyl)amine. The novel poly- (alkoxysilylalkyl)amines have the formula: Image wherein R is Cl-C4 alkyl; R is hydrogen. Cl-C6 alkyl or C6-C12 aryl; R2is C2-C8 alkylene, C6-C12 arylene, or C7-C14 alkarylene; R3 is hydrogen, Cl-C6 alkyl, R, b C6-C12 aryl or -R2-Si- (OR)3-b wherein R, and R2 are as defined above; a and b are 0, 1 or 2; c is 0 or 1; and d is 1, 2 or 3 The compositions are neutral cure, exhibit excellent shelf life stability, possess a practically controllable cure rate and upon curing produce elastomers which have good adhesion to building materials and which possess good weatherability.

615999

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