Method for producing polyglycolic acid fiber
US8840823B2 · kind B2 · utility
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5References
8Claims
0Family size
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Key dates
| Filing date | May 24, 2010 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Dec 1, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/914
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for producing a polyglycolic acid fiber, including: obtaining undrawn yarns by melt spinning a polyglycolic acid resin; keeping the undrawn yarns under a temperature condition of 1 to 20° C.; obtaining drawn yarns by drawing the kept undrawn yarns; and, if necessary obtaining a staple fiber by cutting the drawn yarns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.