Process for preparing carbon fibers from low polydispersity polyacrylonitrile
US12258683B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | May 1, 2020 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Dec 7, 2041 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/38
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a process for producing one or more carbon fiber precursor fibers, particularly by spinning a polymer solution, wherein the polymer has a polydispersity (PDI) of less than or equal to 2, in a coagulation bath with a jet stretch of about 5 to about 60. The one or more carbon fiber precursor fibers produced may be used for producing carbon fiber, typically carbon fiber used in manufacturing composite materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.