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US 4,139,514 AGranted
Aqueous vehicles
AssigneeUnion Carbide Corporation
InventorDavid R. Bassett
Life of this patent
Estimating the term…
Abstract
Aqueous, translucent to clear, water-borne vehicles of emulsion polymerized mixture of acrylic acid or methacrylic acid, an acrylate ester and, optionally, a styrene compound. Blends thereof with latexes and clear and pigmented compositions thereof.
Claims23
An aqueous, translucent to clear, water-borne vehicle comprising an aqueous solution consisting essentially of water and from 20 to 40 weight percent of an emulsion polymerized polymer of a monomers mixture, based on weight, of:
- (a) from about 5 to 30 weight percent of acrylic acid, methacrylic acid or mixtures thereof;
- (b) from about 30 to about 90 weight percent of an ester of the formula:
- CH.sub.2 .dbd.CXCOOR
- wherein X is hydrogen or methyl and R is an unsubstituted or substituted (i) alkyl group of from 1 to about 6 carbon atoms, (ii) phenyl group, (iii) naphthyl group of (iv) a cycloalkyl group having from 5 to 10 ring carbon atoms;
- (c) from 0 to about 40 weight percent of polymerizable ethylenically unsaturated monomers of the group acrylonitrile, methacrylonitrile, acrylamide or methacrylamide and the N-substituted derivatives thereof and substituted and unsubstituted styrenes;
- and
- (d) from 0 to about 5 weight percent of a chain transfer agent;
- said polymer solubilized with a base of the group ammonia, organic amines and alkali metal hydroxides and further said vehicle has a pH of from about 8 to about 10.
5 more elements
A process for producing a translucent to clear, readily flowing, water-borne aqueous vehicle comprising the steps of:
- (A) emulsion polymerizing in water a mixture of monomers wherein (a) from about 5 to about 30 weight percent of said monomers in said mixture is acrylic acid, methacrylic acid or mixtures thereof;
- (b) from about 30 to about 90 weight percent is an ester of the general formula:
- CH.sub.2 .dbd.CXCOOR
- wherein X is hydrogen or methyl and R is an unsubstituted or substituted (i) alkyl group having from 1 to about 6 carbon atoms, (ii) phenyl group, (iii) naphthyl group or (iv) cycloalkyl group having from 5 to 10 ring carbon atoms;
- (c) from about 0 to about 40 weight percent of polymerizable ethylenically unsaturated monomers of the group acrylonitrile, methacrylonitrile, acrylamide or methacrylamide and the N-substituted derivatives thereof and substituted and unsubstituted styrenes;
- in contact with about 0 to 5 weight percent of a chain transfer agent and a catalyst to produce a latex emulsion and then
- (B) solubilizing the latex with a base from the group of ammonia, organic amine or alkali metal hydroxide to a pH of from about 8 to about 10.
4 more elements
Dependencies are inferred from the claim text.