Phenalkamine epoxy curing agents and epoxy resin compositions containing the same
US11603429B2 · kind B2 · utility
0Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2019 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Mar 29, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J163/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a new structural class of phenalkamines, curing agent compositions comprising the phenalkamines, their use, as well as and methods of producing such phenalkamines and compositions. The phenalkamines of the present invention can be prepared by reacting cardanol with an aldehyde compound and triaminononane. These curing-agent compositions may be used to cure, harden, and/or crosslink an epoxy resin. The curing-agent compositions of this invention are of low viscosity and can be used neat or dissolved in a minimum amount of an organic solvent or diluent to effect cure of epoxy resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.