Melt-spinning a plurality of acrylonitrile polymer fibers
US4301107A · kind A · utility
8Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1979 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Oct 23, 1999 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for preparing an acrylonitrile polymer fiber is disclosed wherein melt-spun acrylonitrile polymer filaments are maintained in a stretchable state as spun, stretched in at least two stages while maintained in such stretchable stage, the first stage being at a stretch ratio of up to about 5 and the subsequent stretch being at a stretch ratio greater than that of said first to provide a total stretch ratio of at least about 25.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.