Process for the production of copolyamides from amino nitrile, diamine and dicarboxylic acid
US5185427A · kind A · utility
9Cited by
1References
5Claims
0Family size
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Inventor
Key dates
| Filing date | Aug 20, 1991 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Aug 20, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Copolyamides are prepared by the non-catalytic polymerization of an omega-aminonitrile with a mixture of a diamine and a dicarboxylic acid. Not more than 40% by weight of the product is derived from the omega-aminonitrile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.