Aqueous low-emulsifier dispersions of butadiene-styrene emulsion copolymers containing carboxyl groups
US4358403A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1981 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Aug 12, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D125/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aqueous low-emulsifier dispersions of emulsion copolymers which contain, as copolymerized units, PA0 (a) from 35 to 55% by weight of butadiene, PA0 (b) from 35 to 60% by weight of styrene, PA0 (c) from 1 to 3% by weight of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids of 3 to 6 carbon atoms, PA0 (d) from 1 to 3% by weight of amides of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids of 3 to 5 carbon atoms, PA0 (e) from 1 to 4% by weight of N-methylolamides of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids of 3 to 5 carbon atoms, or their alkyl ethers, and PA0 (f) from 1 to 3% by weight of acrylic acid and/or methacrylic acid monoesters of alkanediols of 2 to 6 carbon atoms, the emulsion containing, as emulsifier, from 0.1 to 0.8% by weight, based on emulsion copolymers, of fatty alcohol-sulfonates and/or alkylbenzenesulfonates, where alkyl is of 12 to 16 carbon atoms, are of particular value as binders for aqueous anti-corrosion paints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.