Aramid spinning process
US4466935A · kind A · utility
15Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1983 |
| Grant date | Aug 21, 1984 |
| Priority date | — |
| Expiry date | Apr 22, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/605
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a dry-spinneret wet-spinning process for the preparation of para-aramid filaments by spinning from sulfuric acid solution, filament tenacity and modulus are increased when the tension is applied to the freshly spun, wet filaments when they contain less than 50% sulfuric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.