Flexible coating compositions having improved scratch...

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 183/06 (2006.01) C08J 3/20 (2006.01) C08K 3/00 (2006.01) C09D 7/00 (2006.01) C09D 7/12 (2006.01) C09D 183/04 (2006.01) C09D 183/08 (2006.01) C09D 201/02 (2006.01)

Patent

CA 2380415

Coating compositions are provided which include a polysiloxane comprising at least one reactive functional group and at least one material comprising at least one reactive functional group. Also provided are multi-layer composite coatings formed from a basecoat deposited from a pigmented coating composition and a topcoat applied over the basecoat, the topcoat deposited from the aforementioned coating composition. A method for improving the scratch resistance of a coated substrate, as well as coated substrates also are provided. The compositions of the invention provide highly scratch resistant coatings, particularly highly scratch resistant color-plus-clearcoatings.

L'invention concerne des compositions de revêtement contenant un polysiloxane comprenant au moins un groupe fonctionnel réactif et au moins une matière renfermant au moins un groupe fonctionnel réactif. L'invention concerne également des revêtements composites multi-couches constitués d'une couche de fond déposée à partir d'une composition de revêtement pigmentée et d'une couche de finition appliquée sur ladite couche de fond, la couche de finition étant déposée à partir de la composition de revêtement susmentionnée. L'invention concerne également un procédé d'amélioration de la résistance à la rayure d'un substrat revêtu, ainsi que des substrats revêtus. Les compositions de l'invention offrent des revêtements hautement résistants à la rayure, et notamment des revêtements colorés et transparents hautement résistants à la rayure.

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