Aqueous compositions of sagging control agents

Details Aqueous compositions of sagging control agents Aqueous compositions of sagging control agents

C - Chemistry, Metallurgy

08

G

C08G 18/32 (2006.01) C09D 5/02 (2006.01) C09D 7/00 (2006.01)

Patent

CA 2661156

The invention is directed to aqueous compositions of sagging control agents comprising at least one urea groups containing sagging control agent and water, wherein the sagging control agents are obtained by reacting in an aqueous phase A) at least one hydrophilic polyisocyanate with B) at least one amino-functional compound selected from a group consisting of an amine with at least one primary amino group and at least one hydroxyl group, having the at least one primary amino group on a primary carbon atom, an amino ether with at least one primary amino group, having the at least one primary amino group on a primary carbon atom and mixtures thereof. The invention is also directed to coating compositions containing the aqueous compositions of sagging control agents.

L'invention concerne des compositions aqueuses d'agents de contrôle de coulure, comprenant au moins un groupe urée, contenant un agent de contrôle de coulure et de l'eau, dans lesquelles les agents de contrôle de coulure sont obtenus par réaction dans une phase aqueuse A) d'au moins un polyisocyanate hydrophile avec B) au moins un composé à fonctionnalité amino choisi dans le groupe constitué par une amine avec au moins un groupe amino primaire et au moins un groupe hydroxyle, ayant au moins un groupe amino primaire sur un atome de carbone primaire, un amino éther avec au moins un groupe amino primaire, ayant au moins un groupe amino primaire sur un atome de carbone primaire, et des mélanges de ceux-ci. L'invention concerne également des compositions de revêtement contenant les compositions aqueuses d'agents de contrôle de coulure.

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