C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 183/04 (2006.01) C08J 3/20 (2006.01) C08K 3/00 (2006.01) C09D 7/00 (2006.01) C09D 7/12 (2006.01) C09D 201/02 (2006.01)
Patent
CA 2380412
Compositions are provided which contain (a) one or more polysiloxanes comprising at least one reactive functional group; a plurality of particles; and, optionally, one or more curing agents comprising at least one functional group that is reactive with any reactive functional group of polysiloxane (a). Additionally, a process for applying the multi-component composite coatings described above to a substrate and coated substrates are provided. A process for preparing the coating compositions also is provided. The multi-component composite coating compositions of the invention provide highly scratch resistant color-plus-clearcoatings capable of retaining scratch resistance after weathering.
L'invention concerne des compositions contenant (a) un ou plusieurs polysiloxanes comprenant au moins un groupe fonctionnel réactif, une pluralité de particules, et, parfois, un ou plusieurs agents réactifs comprenant au moins un groupe fonctionnel réagissant avec chaque groupe fonctionnel réactif de polysiloxane (a). En outre, l'invention concerne un procédé d'application des dépôts composites à plusieurs composants décrits ci-dessus sur des substrats revêtus et non revêtus. L'invention concerne également un procédé de préparation de ces compositions de revêtement. Ces compositions de dépôts composites à plusieurs composants de l'invention fournissent une haute résistance aux égratignures aux revêtements colores et incolores et conservent cette résistance après des intempéries.
Anderson Lawrence G.
Barkac Karen A.
Desaw Shawn A.
Hartman Marvis E.
Hayes Deborah E.
Borden Ladner Gervais Llp
Ppg Industries Ohio Inc.
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