Vinyl acetate copolymer emulsions for paint
US4219454A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1978 |
| Grant date | Aug 26, 1980 |
| Priority date | — |
| Expiry date | Sep 5, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D131/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a latex composition particularly suited as a paint vehicle for the manufacture of semi-gloss and flat interior paint compositions. The latex composition comprises from about 40 to 70% by weight of copolymer resin particles having at least 50% vinyl acetate polymerized therein, the particles being substantially spherical and characterized in that not more than 5% of the particles have a size greater than 0.65 microns and not more than 5% have a particle size less than 0.33 microns. In the preferred instance, the resin particles comprise vinyl acetate, a lower alkyl acrylate and a conventional wet adhesion monomer, the combination consisting of from about 80 to 90% vinyl acetate, 10 to 20% of lower alkyl acrylate, e.g., butyl acrylate and 0.2 to 1.5% of the wet adhesion monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.