Heavy residue from hydrogenation of branched aliphatic dinitriles for curing epoxy resins
US4143000A · kind A · utility
6Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1978 |
| Grant date | Mar 6, 1979 |
| Priority date | — |
| Expiry date | Mar 21, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A mixture of polyamines obtained as a heavy residue from the distillation of a reaction product from the hydrogenation of branched aliphatic dinitriles is useful as curing agent for epoxy resins showing lowered water absorption and significantly higher lap shear strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.