Polymer for the production of carbon fibers and carbon fibers made therefrom
US12122864B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jul 2, 2019 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | May 18, 2041 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A polymer comprising repeating units derived from a first monomer, typically acrylonitrile, and repeating units derived from a second monomer different from the first monomer, wherein the second monomer is a compound comprising an ethylenically unsaturated organic anion and an organic cation containing a C═N imine group; a process for producing carbon fibers using the said polymer; and carbon fibers made therefrom, are described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.