Polycaprolactam molecular composites
US5491200A · kind A · utility
9Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1993 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Dec 22, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L79/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyimides serve as reinforcing rigid-backbone segments in nylon 6 copolymers. In a first embodiment, the copolymers are prepared from polyimides containing acylated caprolactam moieties pendant therefrom which provide sites for polycaprolactam grafts. In a second embodiment, polyimide oligomers end-capped with acyl-activated caprolactam rings permit the formation of block caprolactam copolymers that include polyimide reinforcing segments. The polyimide/nylon 6 copolymers have properties superior to those of nylon 6 and can also serve as compatibilizing agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.