Method for the production of lignin-containing precursor fibres and also carbon fibres
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United States of America Patent
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Apr 25, 2017
Grant Date -
Jul 10, 2014
app pub date -
May 16, 2012
filing date -
May 18, 2011
priority date (Note) -
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Abstract
The invention relates to a method for the production of a precursor for the production of carbon—and activated carbon fibers according to the wet—or air-gap spinning method, in which a solution of lignin and a fiber-forming polymer in a suitable solvent is extruded through the holes of a spinning nozzle into a coagulation bath, the formed thread is stretched and subsequently treated, dried at an elevated temperature and then wound up. The lignin-containing thread is an economical starting material for the production of carbon—and activated carbon fibers.
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International Classification(s)
- D01D:MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- B29K:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, ....
- B29L:INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RE....
- D01F:CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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