Modified liquid epoxy resin composition
US5623031A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1996 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Jan 11, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/245
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A modified liquid epoxy resin composition is provided by reacting a crystalline epoxy resin, from about 3 to about 20 parts by weight, based on the epoxy resin, of a compound having two or more phenolic hydroxyl groups and/or carboxyl groups in one molecule and from about 3 to about 20 parts by weight of a compound having one phenolic hydroxyl group or carboxyl group in one molecule. The crystalline epoxy resin is preferably selected from various glycidylethers of biphenol compounds. The modified liquid epoxy resin composition has a low viscosity and good liquid stability at low temperatures, resulting in cured resins having excellent heat resistance and water resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.