Process for making a high heat polymer fiber
US9416465B2 · kind B2 · utility
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74References
46Claims
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Key dates
| Filing date | Jul 14, 2006 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Jul 16, 2028 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/088
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Various embodiments of a process for making fibers comprising a high heat polymer are provided. In one embodiment, a process for producing polymer fiber includes extruding molten polymer having a melt temperature ranging from about 180-500° C., passing the molten polymer through a plurality of openings of a spinneret to produce a fiber bundle, and contacting the fiber bundle with a cooling medium having a substantially uniform flow distribution across the width of the fiber bundle where the cooling medium has a temperature that ranges from about 0° C. to about 80° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.