C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
31/21, 167/300,
C08L 33/00 (2006.01) C07C 69/54 (2006.01) C08F 220/28 (2006.01) C08F 246/00 (2006.01) C08F 290/06 (2006.01) C09D 7/00 (2006.01)
Patent
CA 1152668
Abstract of the Disclosure Novel aqueous liquid emulsion polymers are prepared by the copolymerization of (A) 15-60 weight percent of a C3-C8 .alpha.,.beta.-ethylenically unsaturated carboxylic acid monomer, preferably acrylic or meth- acrylic acid or a mixture thereof with itaconic or fumaric acid, (B) 1?-80 weight percent of a nonionic copolymerizable C2-C12 .alpha.,.beta.-ethylenically unsaturated monomer, preferably a monovinyl ester such as ethyl acrylate or a mixture thereof with styrene, acrylo- nitrile, vinyl chloride or vinyl acetate, and (C) 1-30 weight percent of certain nonionic vinyl sur- factant esters, such as nonylphenoxypoly(ethyleneoxy)9 ethyl acrylate, to give an emulsion copolymer stable as an aqueous colloidal dispersion at an acid pH lower than about 5.0 but responsive to pH adjustment with base. These emulsion polymers adjusted to a pH of 5 5-10 5 or higher are effective thickeners for a wide variety of aqueous systems including cosmetic products, drilling muds, and particularly aqueous coating compositions such as latex paint.
340351
Smart & Biggar
The Dow Chemical Company
LandOfFree
Liquid emulsion polymers useful as ph responsive thickeners... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid emulsion polymers useful as ph responsive thickeners..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid emulsion polymers useful as ph responsive thickeners... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-317537