Waterborne coating compositions containing low-VOC coalescents
US8383710B2 · kind B2 · utility
3Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2010 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | May 21, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/101
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Waterborne coating compositions are disclosed that include a latex emulsion polymer, and, as a coalescent, a levulinic acid ester of a monohydric aliphatic alcohol having from 10 to 20 carbon atoms. The coating compositions of the invention have a reduced VOC content, and provide improved coalescing activity compared with esters of polyols such as glycerol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.