Polyacrylonitrile fiber manufacturing method and carbon fiber manufacturing method
US8845938B2 · kind B2 · utility
1Cited by
8References
9Claims
0Family size
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Key dates
| Filing date | Nov 28, 2011 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Nov 28, 2031 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02J1/228
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a polyacrylonitrile fiber includes a spinning process in which a spinning dope including polyacrylonitrile is spun; a first drawing process; a drying process; and a second hot drawing process in this order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.