Surface-modified micaceous particulates having improved...

Details Surface-modified micaceous particulates having improved... Surface-modified micaceous particulates having improved...

C - Chemistry, Metallurgy

07

F

117/183, 400/701

C07F 7/10 (2006.01) C07F 7/18 (2006.01) C09C 1/00 (2006.01) C09C 1/40 (2006.01) C09C 3/12 (2006.01) C09D 5/02 (2006.01) C09D 7/02 (2006.01) C09D 201/00 (2006.01)

Patent

CA 2020415

Compounds useful for improving the dispersibility of micaceous particulates in aqueous-based coating compositions comprise urethanes or ureas which are the reaction products of silylalkyl or silylaryl isocyanates with alcohols, amines, polyether alcohols or amine-terminated polyethers. The compounds may also be the reaction products of silylalkyl- or silylarylamines with half-blocked diisocyanates which are themselves the reaction products of a diisocyanate with an alcohol, amine, polyether alcohol or amine-terminated polyether. Micaceous particulates which have been surface modified by reaction with these compounds, as well as coating compositions comprising such surface-modified micaceous particulates, and coated substrates are also disclosed.

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