Polymer latices and paint formulations

C - Chemistry – Metallurgy – 09 – D

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C09D 5/02 (2006.01) C09D 125/04 (2006.01) C09D 125/14 (2006.01) C09D 133/02 (2006.01) C09D 139/00 (2006.01)

Patent

CA 1288537

ABSTRACT Aqueous polymer emulsions suitable for preparation of high wet adhesion latex paints comprise an emulsified film-forming copolymer of a first, hard monomer such as styrene, a second, soft monomer such as butyl acrylate, a wet adhesion monomer and an acidic copolymerizable dry-adhesion promoter, the copolymer having a minimum film forming temperature of about 25°C. The emulsions are prepared by free radical polymerizations, in latex, by procedures specially adapted to avoid mutual neutralization of the monomers prior to polymerization.

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