Acrylate-functional alkyd resins having improved dry time

C - Chemistry – Metallurgy – 09 – D

Patent

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C09D 167/08 (2006.01) C09D 7/12 (2006.01) C09D 167/07 (2006.01) C09F 9/00 (2006.01)

Patent

CA 2499323

An acrylate-functionalized alkyd coating composition is disclosed having improved dry time. The composition includes an acrylate-functionalized alkyd resin, a solvent, and a drier package that provides the composition with a cobalt content of at least 0.01 wt% based on binder solids content, and a calcium content of from 0.15 wt% to 5 wt%, based on the binder solids content. The drier mixture disclosed results in the coating composition having improved dry time when compared with similar coating compositions using conventional drier packages.

La présente invention concerne une composition de revêtement d'alkyde à fonction acrylate qui présente un temps de séchage amélioré. Cette composition comprend une résine alkyde à fonction acrylate, un solvant et un mélange de siccatif qui donne à la composition une teneur en cobalt d'au moins 0,01 % en poids, sur la base d'une teneur en liants solides, et une teneur en calcium allant de 0,15 % en poids à 5 % en poids, sur la base de la teneur en liants solides. Le mélange de siccatif permet à la composition de revêtement de présenter un temps de séchage amélioré par comparaison à des compositions de revêtement similaires utilisant des mélanges de siccatif classiques.

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