Two-part curable composition and polyurethane-polysiloxane...

Details Two-part curable composition and polyurethane-polysiloxane... Two-part curable composition and polyurethane-polysiloxane...

C - Chemistry, Metallurgy

08

G

C08G 18/61 (2006.01) C08G 18/10 (2006.01)

Patent

CA 2631475

A substantially uniform polyurethane-polysiloxane resin mixture is obtained from a two-part curable composition in which the first part contains a moisture-curable silylated polyurethane resin and a crosslinker for silanol-terminated diorganopolysiloxane, the second part contains silanol-terminated diorganopolysiloxane and a condensation catalyst is present in the first and/or second part.

La présente invention concerne un mélange de résine polyuréthane-polysiloxane substantiellement uniforme obtenu à partir d'une composition durcissable à deux composantes dans laquelle la première composante contient une résine de polyuréthane silylée durcissable à l'humidité et un agent de réticulation pour un diorganopolysiloxane présentant un groupe terminal silanol, la seconde composante contient un diorganopolysiloxane présentant un groupe terminal silanol, et un catalyseur de condensation est présent dans la première et/ou la seconde composantes.

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