High strength epoxy tooling compositions
US4920161A · kind A · utility
5Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1988 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Jun 24, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/504
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A high strength, room temperature curable epoxy tooling compositions containing interstitially-matched filler systems for making cast-to-size forming tools for metal sheet stamping. The composition can be fully cured by at least one aliphatic amine catalyst in twelve hours producing a rigid article having a tensile strength of at least 40 MPa and a compressive strength of at least 100 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.