High performance aqueous coating compositions

Details High performance aqueous coating compositions High performance aqueous coating compositions

C - Chemistry, Metallurgy

09

D

C09D 133/00 (2006.01)

Patent

CA 2655125

This invention relates to coating compositions that include water; a latex polymer and a silane coupling agent. The latex polymer preferably comprises acetoacetoxy functionality, or is a multistage latex, or is an acetoacetoxy functional multistage latex. The silane coupling agent is preferably a functionalized silane coupling agent (more preferably an epoxy-functional silane coupling agent). The compositions may be used to coat a variety of substrates, including wood, cement and fiber cement. Articles having the coating applied thereto are also provided.

L'invention concerne des compositions de revêtement comprenant de l'eau ; un latex polymère et un agent de couplage au silane. Le latex polymère comprend de préférence une fonctionnalité acétoacétoxy ou est un latex à phases multiples ou un latex à phases multiples à fonction acétoacétoxy. L'agent de couplage au silane est de préférence un agent de couplage fonctionnalisé au silane (plus préférablement un agent de couplage au silane à fonction époxy). Les compositions peuvent être utilisées pour enduire une variété de substrats, y compris le bois, le ciment et le fibrociment. L'invention concerne également des articles sur lesquels est appliqué le revêtement.

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