Polyamides
US4247426A · kind A · utility
10Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1978 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Dec 29, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to novel polyamides substantially based on polycarboxylic acids, in particular polymerized fatty acids, and polyalkylene polyamines in which the recurring alkylene groups are of different carbon chain lengths and two or more different alkylene imine groups occur. These polyamides show amine values from 5-600, acid values below 2 and viscosities of 0.05-25 Pa s and are useful as curing catalysts for epoxy resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.