Low ratio rtv compositions and methods for making same

Details Low ratio rtv compositions and methods for making same Low ratio rtv compositions and methods for making same

C - Chemistry, Metallurgy

08

L

C08L 83/06 (2006.01) C08G 77/06 (2006.01) C08G 77/12 (2006.01)

Patent

CA 2690139

A two-part moisture-curing composition having as a first part water and an hydroxy-terminated diorganosiloxane; and a second part which includes a reactive silicone, at least one end-capping silane which includes one or more enoxy groups, at least one end-capping catalyst and at least one moisutre cure catalyst. Enhanced and controlled cure speed is obtained by these compositions.

L'invention concerne une composition à réticulation par l'humidité à deux composants, contenant comme premier composant de l'eau et un diorganosiloxane à terminaison hydroxy ; et un deuxième composant contenant une silicone réactive, au moins un silane de coiffage d'extrémité contenant au moins un groupe énoxy, au moins un catalyseur de coiffage d'extrémité et au moins un catalyseur de réticulation par l'humidité. Les compositions selon l'invention permettent d'obtenir une vitesse de réticulation accélérée et régulée.

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