Silicon-containing chain extenders

Details Silicon-containing chain extenders Silicon-containing chain extenders

C - Chemistry, Metallurgy

07

F

C07F 7/08 (2006.01) A61L 27/18 (2006.01) A61L 29/06 (2006.01) A61L 31/06 (2006.01) C08G 18/12 (2006.01) C08G 18/38 (2006.01) C08G 18/48 (2006.01) C08G 18/61 (2006.01) C08G 18/66 (2006.01) C08J 5/00 (2006.01) C08K 5/541 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2296642

A chain extender including a silicon-containing diol of formula (I) wherein R1, R2, R3, R4, R5, and R6 are the same or different and selected from an optionally substituted straight chain, branched or cyclic, saturated or unsaturated hydrocarbon radical; R7 is a divalent linking group or an optionally substituted straight chain, branched or cyclic, saturated or unsaturated hydrocarbon radical; and n is 0 or greater, preferably 2 or less.

L'invention concerne un allongeur de chaîne comprenant un diol contenant du silicium, de formule (I), dans laquelle R1, R2, R3, R4, R5 et R6 sont identiques ou différents et représentent un radical hydrocarbure saturé ou insaturé, cyclique, à chaîne droite ou ramifiée, éventuellement substitué; R7 représente un groupe de liaison bivalent ou un radical hydrocarburé saturé ou insaturé, cyclique, à chaîne droite ou ramifiée, éventuellement substitué; et n vaut 0 ou plus, de préférence 2 ou moins.

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