Propoxylated alkali-soluble thickeners
US5191051A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1990 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Sep 28, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L33/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is disclosed an aqueous emulsion copolymer which provides an alkali-soluble anionic copolymer providing antisettling and antisag thickening characteristics especially useful in textured latex paints. The copolymers comprise an aqueous emulsion copolymer of: PA1 (A) about 10-60 weight percent of an alpha, beta-monoethylenically unsaturated carboxylic acid; PA1 (B) about 20-80 weight percent of a non-reactive monoethylenically unsaturated monomer which provides a water-insoluble copolymer; PA1 (C) about 0.5-40 weight percent of a monoethylenically saturated, hydrophobic nonionic monomer which is the reaction product of a monohydric or monoamine-terminated polypropoxylated or polybutoxylated hydrophobe with a monoethylenically unsaturated monomer having a single group which is reactive under the conditions employed; and PA1 (D) from 0 up to about 2 weight percent of a polyethylenically unsaturated monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.