Water soluble copolyamide from (1) polyalkylene polyamine, (2) dicarboxylic acid, (3) diamine or lactam or amino acid and (4) epichlorohydrin
US3945983A · kind A · utility
5Cited by
6References
6Claims
0Family size
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Key dates
| Filing date | Feb 26, 1973 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Feb 26, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31783
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the production of an anchoring agent of copolyamide resin by condensing certain amounts of polyalkylene polyamines, dicarboxylic acids and at least one member of the group consisting of diamine, .epsilon.-caprolactam and amino caproic acid, and then reacting the secondary amino groups of said copolyamide partially with epichlorhydrin for crosslinking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.