Pigmented air drying latex paints having superior gloss

C - Chemistry – Metallurgy – 08 – J

Patent

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241/136, 400/904

C08J 3/20 (2006.01) C09D 3/80 (1980.01)

Patent

CA 1120625

ABSTRACT OF THE DISCLOSURE A high gloss, water base, pigmented latex is provided by grinding a pigment into a water-free solution of a carboxyl-functional addition solution copolymerized copolymer of monoethylenically unsaturated monomers inclu- ding at least about 10%, by weight of monoethylenically unsaturated carboxylic acid in water miscible alcoholic organic solvent, the copolymer being at least partially neutralized at the time of grinding with an hydroxy amine, to render the said copolymer dispersible in water, and thereby form a nonaqueous pigment paste, and then mixing the nonaqueous pigment paste with an air drying aqueous latex of aqueous emulsion copolymerized copolymer particles. The invention includes the latex paint so-produced.

298225

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