Curable coating compositions having improved effect pigment...

Details Curable coating compositions having improved effect pigment... Curable coating compositions having improved effect pigment...

C - Chemistry, Metallurgy

09

D

C09D 5/36 (2006.01) C09D 5/38 (2006.01) C09D 7/12 (2006.01) C09D 201/02 (2006.01) C09D 201/06 (2006.01)

Patent

CA 2253699

There is described a curable coating composition having at least one effect pigment which, upon cure, exhibits substantially improved orientationof the effect pigment and a corresponding improvement in appearance. The composition comprises: (A) a carbamate-functional component having a hydrophobicity equivalent to or greater than that of a carbamate-functional compound (A') which is the reaction product of: (1) a compound comprising a plurality of hydroxyl groups, at least one of which is the result of a ring-opening reaction between an epoxy group and an organic acid group, and (2) cyanic acid or a compound comprising a carbamate group, and (B) a component comprising a plurality of groups that are reactive with the carbamate functional groups on component (A), and (C) at least one effect pigment, the curable coating composition when cured having a substantially improved effect pigment orientation. Preferably, the composition further comprises particular rheology control agents.

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