C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 67/20 (2006.01) C08G 63/123 (2006.01) C08G 63/42 (2006.01) C08G 63/58 (2006.01) C08G 63/685 (2006.01) C08G 83/00 (2006.01) C09B 67/46 (2006.01) C09D 167/00 (2006.01) C09D 167/02 (2006.01) C09D 201/00 (2006.01) C09D 201/02 (2006.01)
Patent
CA 2468478
The present invention is directed to a polyester polycarbamate polymeric pigment dispersant to be used as a grind resin to incorporate pigment into pigment dispersions for coating compositions. The pigment dispersant is the reaction product of a first compound having a plurality of hydroxyl groups, a carboxylic acid anhydride, a second compound having at least one epoxy group, and a carbamate compound. The present invention is also directed to a method of preparing the pigment dispersant.
Cette invention se rapporte à un dispersant de pigment polymère au polycarbamate de polyester conçu pour être utilisé comme résine de broyage pour incorporer un pigment dans des dispersions de pigments pour des compositions de revêtement. Ce dispersant de pigment est constitué par le produit de la réaction d'un premier composé comportant plusieurs groupes hydroxyle et un anhydride acide carboxylique et un second composé comportant au moins un groupe époxy et un composé de carbamate. Cette invention concerne également un procédé de préparation de ce dispersant de pigment.
Harris Paul
Ramesh Swaminathan
Basf Corporation
Robic
LandOfFree
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