Process for preparing cellulose fibers
US6156253A · kind A · utility
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3Claims
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Key dates
| Filing date | Jun 25, 1999 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Jun 25, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F2/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for preparing fibers from an optically anisotropic solution containing either one of cellulose or cellulose derivatives by extruding the solution through a non-corroding spinneret and coagulating the resulting extrudates in a coagulant, the coagulant being a liquid which contains mostly water and to which cations have been added.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.