Acrylic block copolymer pigment dispersants containing...

Details Acrylic block copolymer pigment dispersants containing... Acrylic block copolymer pigment dispersants containing...

C - Chemistry, Metallurgy

08

F

C08F 8/30 (2006.01) C08F 8/34 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2384775

Acrylic AB block copolymers prepared by group transfer polymerization that are useful as pigment dispersant, characterized by mononuclear or dinuclear heterocyclic groups bonded to the highly polar anchoring A segment of the block copolymer backbone to facilitate attachment on a pigment surface and improve dispersant efficiency in solvent-borne paint systems.

On prépare des copolymères blocs acryliques AB par polymérisation de transfert de groupe. Ces copolymères sont utiles en tant que dispersants de pigment et caractérisés par des groupes hétérocycliques mononucléaires ou dinucléaires adhérant au segment d'ancrage A extrêmement polaire du squelette du copolymère bloc afin de faciliter la fixation sur une surface contenant un pigment et d'améliorer l'efficacité du dispersant dans des peintures véhiculées par un solvant.

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