Stable precatalyzed epoxy resin compositions
US4366295A · kind A · utility
25Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1981 |
| Grant date | Dec 28, 1982 |
| Priority date | — |
| Expiry date | Jun 1, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/621
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions containing a relatively low equivalent weight epoxy resin and an advancement catalyst for reacting said epoxy resin with a polyhydric phenol are stable at high storage temperatures when the advancement catalyst is a phosphonium salt of phosphoric acid, phosphorous acid or polyphosphoric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.