Low VOC low tack gel coat resin
US6617395B1 · kind B1 · utility
3Cited by
1References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2002 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Apr 8, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D167/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A low tack, low VOC gel coat is disclosed comprising a unsaturated polyester resin derived from maleic anhydride and up to about 30% of an organic solvent. The resin is characterized by: a viscosity of less than or equal to about 1750 cp at 70% NVM in styrene; a glass transition temperature greater than or equal to about 11° C.; and a weight average molecular weight less than or equal to about 6,050. A process for making such a gel coat is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.