High temperature epoxy tooling composition of bisphenol-A epoxy, trifunctional epoxy, anhydride curing agent and an imidazole catalyst
US4732962A · kind A · utility
16Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1987 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Feb 18, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A tough, durable, high temperature epoxy tooling composition for making cast-to-size forming tools. The composition comprises a bisphenol-A epoxy, a trifunctional aromatic epoxy, an anhydride catalyst, and an imidazole catalyst. The composition may optionally contain a filler system comprising filler particles having different diameters that are interstitially-matched.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.