Process for melt spinning acrylonitrile polymer fiber using hot water as stretching aid
US4303607A · kind A · utility
15Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1980 |
| Grant date | Dec 1, 1981 |
| Priority date | — |
| Expiry date | Oct 27, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Orientation stretching of acrylonitrile polymer fiber spun from a polymer-water melt directly into a steam-pressurized solidification zone is more readily accomplished when hot, liquid water is used to wet the fiber being processed at or before the stretch rolls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.