Block copolymer of poly (oxa-amide) and polyamide
US4136133A · kind A · utility
10Cited by
4References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1977 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Mar 4, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel block copolymer formed by melting blending a melt spinnable polyamide such as nylon-6 and a poly(oxa-amide) such as poly(4-oxaheptamethylene adipamide) (also known as N-303-6) is disclosed. Said copolymer has utility as a fiber. The fiber of copolymer, for example of nylon-6 and said poly-(oxa-amide) has superior absorption characteristics than that of nylon-6. Furthermore, resulting fiber (N-303-6//6) still substantially maintains the other desirable properties of the major constituent, for example nylon-6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.