Advancing epoxy resins in presence of amino group-containing phosphonium catalyst
US5109099A · kind A · utility
5Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Aug 16, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/688
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The process of reacting an epoxy resin with a reactive hydrogen-containing compound or a carboxylic acid anhydride in the presence of a phosphonium catalyst is improved by employing a phosphonium compound having an amino substituent on the cation portion of the phosphonium compound as the catalyst. The invention also concerns precatalyzed epoxy resin compositions, curable compositions and cured compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.