Flash-spinning polymeric plexifilaments
US5147586A · kind A · utility
30Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Feb 22, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved process is provided for flash-spinning plexifilamentary film-fibril strands of a fiber-forming polyolefin from a C.sub.4-7 hydrocarbon/co-solvent spin liquid that, if released to the atmosphere, presents a greatly reduced ozone depletion hazard, as compared to the halocarbon spin liquids currently-used commercially for making such strands. The resulting plexifilamentary film-fibril strands have increased tenacity and improved fibrillation compared to strands flash-spun from 100% hydrocarbon spin liquids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.