Improved paint compositions containing an additive to reduce...

Details Improved paint compositions containing an additive to reduce... Improved paint compositions containing an additive to reduce...

C - Chemistry, Metallurgy

08

G

C08G 18/48 (2006.01) C08G 18/73 (2006.01) C09D 5/02 (2006.01) C09D 7/12 (2006.01) C09D 131/04 (2006.01) C09D 133/00 (2006.01) C09D 175/08 (2006.01)

Patent

CA 2651424

A water-borne latex paint system and a method of formulating a water borne latex paint system having viscosity color stability. The system includes a base paint, at least one associative thickener, a colorant compound, and at least 0.1% dry weight of a block copolymer ABLBA composition. The block copolymer acts as a viscosity stabilizer in the presence of associative thickeners. The A component includes a monomer unit containing a moiety such as an alkyl group, an aryl group or an alkyl aryl group; the B component includes a polyethylene oxide polymer or a polyethylene-polypropylene oxide copolymer; and the L component includes a dianhydride unit or a diisocyanate unit.

La présente invention concerne un système de peinture latex aqueux et une méthode de formulation d'un système de peinture latex aqueux présentant une stabilité de viscosité et de couleur. Le système inclut une peinture de base, au moins un épaississant associatif, un composé colorant, et au moins 0,1 % du poids sec d'une formule de copolymère bloc ABLBA. Le copolymère bloc agit en tant que stabilisateur de viscosité en présence d'épaississants associatifs. Le composant A inclut un motif monomère contenant une fonction telle qu'un groupement alkyle, un groupement aryle ou un groupement alkylaryle; le composant B inclut un polymère oxyde de polyéthylène ou un copolymère polyethylene-oxyde de polypropylène; et le composant L inclut un motif dianhydride ou un motif diisocyanate.

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