Process for high speed melt spinning
US4909976A · kind A · utility
39Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1988 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | May 9, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/62
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The high speed melt spinning of synthetic polymer fibers is provided with on-line zone heating and cooling by which the strand emerging from the spinneret is initially cooled to an optimum temperature above the glass transition point of the polymer, the maintained near that temperature for a period of time to promote development of desirable fiber properties such as crystallization and crystal orientation, and then finally cooled below the solidification point for take up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.