Vinylidene chloride and styrene-containing polymer latices

C - Chemistry – Metallurgy – 08 – L

Patent

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400/9051, 400/90

C08L 39/00 (2006.01) C08F 212/08 (2006.01) C08F 220/12 (2006.01) C09D 133/06 (2006.01)

Patent

CA 1244179

VINYLIDENE CHLORIDE AND STYRENE-CONTAINING COPOLYMER LATICES ABSTRACT An aqueous latex is disclosed which possesses improved water resistance at reduced acrylic ester content for use in exterior latex paints. This latex comprises an aqueous emulsion copolymer of monomers consisting essentially of from 10% to 30% of vinylidene chloride together with 20% to about 50% of styrene, and from 40% to 60% of monoethylenic ester, preferably acrylic or methacrylic esters, the mixture of monomers providing the copolymer with a glass transition temperature in the range of -10°C. to +10°C., and from about 0% to 10.0% of a monomer promoting adhesion, the proportions being based on the total weight of monomers copolymerized.

465021

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