Vinyl acetate binders in an above-critical PVC coatings composition
US10479907B2 · kind B2 · utility
0Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Jul 30, 2014 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Jul 30, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D133/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is an above-critical coating composition comprising an aqueous dispersion of polymer particles, pigment particles, and extender particles wherein the polymer particles comprise from 80 to 99.8 weight percent structural units of vinyl acetate and from 0.1 to 6 weight percent structural units of a phosphorus acid monomer. The composition shows surprisingly improved hiding with increased particle size of the polymer particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.