Silane terminated liquid polymers

Details Silane terminated liquid polymers Silane terminated liquid polymers

C - Chemistry, Metallurgy

08

G

402/12

C08G 18/83 (2006.01)

Patent

CA 1330610

SILANE TERMINATED LIQUID POLYMERS Abstract of the Disclosure: A liquid polymer which is rapidly curable, at room temperature, to a solid hydrolytically stable elastomer having high tensile and tear strengths, said liquid polymer having the formula: Image wherein R is a liquid polymeric backbone selected from the group consisting of polyether and polythioether, said backbone having a number average molecular weight of at least 1,500 and having no carboxyl or hydroxyl groups; R1 is lower alkyl, R2 is lower alkyl, R3 is a divalent organic radical having no sulfur atoms, R4 is alkylene of from 3 to 6 carbon atoms, and which separates the oxygen atom from X by at least 3 carbon atoms, X is sulfur or -S-R5-S- wherein R5 is alkylene having from 2 to 12 carbon atoms, alkylene thioether of from 4 to 12 carbon atoms or hydrocarbon ether of from 4 to 20 carbon atoms, p is 2 to 4, m is 1 to 3, n is 0 to 2 and the sum of m and n is 3. There is also disclosed a method for curing such liquid polymers.

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