Hydroxyl and carbamate functional resins
US6927271B2 · kind B2 · utility
6Cited by
36References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2002 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Sep 28, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Coating compositions contain hydroxyl- or carbamate functional resins with a relatively low equivalent weight. The resins are based on a polyol core containing urea and hydroxyl groups, and made by reacting a polyisocyanate, preferably a triisocyanate, with an amino functional polyol, preferably a polyol having one amino group and two or more hydroxyl groups. The polyol core may be further extended to a first or higher generation dendrimer or hyperbranched structure by reacting the initial polyol core with a compound having one carboxyl group and two or more hydroxyl groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.