초록 ▼

Nonionic associative thickeners suitable for use in aqueous coating compositions comprise an aqueous solution polymer of (a) from about 40 percent to about 98 percent, preferably from 60 to 95 percent, by weight of a monoethylenically unsaturated monomer such as acrylamide, N,N-dimethyl acrylamide,

Nonionic associative thickeners suitable for use in aqueous coating compositions comprise an aqueous solution polymer of (a) from about 40 percent to about 98 percent, preferably from 60 to 95 percent, by weight of a monoethylenically unsaturated monomer such as acrylamide, N,N-dimethyl acrylamide, vinyl pyrrolidone, hydroxyethyl acrylate and mixtures thereof; and (b) from about 2 percent to about 60 percent, preferably from 5 to 40 percent, by weight of a nonionic urethane monomer which is the urethane reaction product of a monohydric nonionic surfactant with a monoethylenically unsaturated monoisocyanate.

대표청구항 ▼

A nonionic associative thickener which is a water soluble polymer of: (a) about 40 to 98 weight percent of a water-soluble monoethylenically unsaturated monomer; and (b) about 2 to 60 weight percent of a nonionic urethane monomer comprising the urethane reaction product of a monohydric nonionic surf

A nonionic associative thickener which is a water soluble polymer of: (a) about 40 to 98 weight percent of a water-soluble monoethylenically unsaturated monomer; and (b) about 2 to 60 weight percent of a nonionic urethane monomer comprising the urethane reaction product of a monohydric nonionic surfactant and a monoethylenically unsaturated monoisocyanate containing styryl unsaturation.