Coating composition comprising polyacetoacetate, crosslinker and organosilane
AssigneeAkzo Nobel N.V.
InventorsNicolaas Antonius Maria Schoonderwoerd, Paul Marie Vandevoorde
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Abstract
The invention pertains to a coating composition comprising a polyacetoacetate, a crosslinker for said polyacetoacetate and an organosilane. The organosilane preferably comprises at least one amino group, amino containing-group, expoxy group, epoxy-containing group, mercapto group, mercapto-containing group, vinyl group, vinyl-containing group, isocyanate group, isocyanate-containing group, ureido group, ureido-containing group, imidazole group or imidazole-containing group. The coating composition is particularly useful as a primer for an aluminum substrate.
Claims21
A solvent borne coating composition comprising (a) an organic solvent, (b) a polyacetoacetate having acetoacetate groups, (c) a crosslinker having at least two groups capable of crosslinking with the acetoacetate groups, and (d) an organosilane, the organosilano being present in an adhesion enhancing amount.
Dependencies are inferred from the claim text.