Solvent free polyurethane dispersions for hard surface coatings
US7754809B2 · kind B2 · utility
12Cited by
13References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2006 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Dec 13, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to polyurethane dispersions which develop high hardness and form coating films at room temperature. The dispersions are prepared from prepolymers containing prepolymers containing a polyol or polyol blend having specified equivalent weight and polyisocyanate to polyol molar ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.