Amidopolyamines with enhanced gel-time for elevated temperature applications
US10174154B2 · kind B2 · utility
0Cited by
5References
9Claims
0Family size
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Key dates
| Filing date | Nov 4, 2015 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Nov 4, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D163/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An epoxy curing agent is disclosed that can be obtained by reacting at least one carboxylic acid with at least one polyamine. The disclosed curing agent can be obtained by preparing an amidoamine with about 0.15 to about 0.30 molar excess of carboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.