Nonlinear polysiloxane containing coatings with improved...

Details Nonlinear polysiloxane containing coatings with improved... Nonlinear polysiloxane containing coatings with improved...

C - Chemistry, Metallurgy

09

D

C09D 183/04 (2006.01) C08K 5/54 (2006.01)

Patent

CA 2612737

A coating composition, particularly a clearcoat composition, which may be a two-component clearcoat composition, comprises a film-forming material, a crosslinking agent, and a nonlinear polysiloxane polymer having a functional group reactive with the crosslinking agent. The coating composition exhibits excellent scratch resistance and adhesion of repair coating layers and sealants, such as windshield sealants.

La présente invention concerne une composition de revêtement, en particulier une composition de revêtement transparent qui peut être une composition de revêtement transparent à deux composants. La composition renferme un matériau formant un film, un agent de réticulation, et un polymère de polysiloxane non linéaire comportant un groupe fonctionnel susceptible de réagir avec l'agent de réticulation. La composition de revêtement présente une excellente résistance aux éraflures et une excellente adhérence aux couches de revêtement de réparation et aux matériaux d'étanchéité, tels que des joints d'étanchéité de pare-brise.

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