Transparent copolyamide from caprolactam, cyclic diamine and cyclic dicarboxylic acid
US4398012A · kind A · utility
14Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1982 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Jan 19, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/36
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention is a transparent alcohol resistant, hot water resistant, thermoplastically formable copolymer of (A) 80.4 to 88.8 weight percent epsilon-caprolactam and the remaining (B) 11.2 to 19.6 weight percent of substantially equimolar portions of a moiety derived from (1) a diamine or diisocyanate and (2) a diacid or (c) 11.2 to 19.6 weight percent para amino benzoic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.