Advanced epoxy resins having improved impact resistance when cured
US4552814A · kind A · utility
40Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1985 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Jan 30, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31515
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Epoxy resins are prepared by reacting a mixture of (A) a diglycidyl ether of a dihydric aliphatic material, (B) a polyglycidyl ether of a polyhydric phenol having an average of at least about 2.6 glycidyl ether groups per molecule and optionally (C) a diglycidyl ether of a dihydric phenol with a dihydric phenol in the presence of a catalyst. Coating compositions containing the aforementioned epoxy resins have improved chip resistance, chemical resistance or pencil hardness when cured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.