Title:
lignin content precursor textiles -- and -- again -- the method for generation of carbon fiber
Document Type and Number:
Japanese Patent JP6205351
Kind Code:
B2
Abstract:
Producing a lignin-containing precursor fiber for producing carbon fibers and/or activated carbon fibers, comprises (a) providing a solution comprising at least one kind of lignin and at least one fiber-forming polymer in at least one solvent, and (b) introducing the solution into a coagulation bath by extruding through a spinneret, where the lignin precursor fiber precipitates. Independent claims are also included for: (1) the precursor fiber for producing carbon fibers comprising (in wt.%) at least one kind of lignin (10, 20-60), at least one kind of fiber-forming polymer (90, preferably 40-80), optionally a strength of at least 10 cN/tex, preferably at least 20 cN/tex, and/or optionally an modulus of elasticity of at least 1000 cN/tex, preferably at least 1300 cN/tex; (2) producing the carbon fiber, comprising stabilizing the precursor fiber at 100-400[deg] C, and carbonizing at greater than 800[deg] C under inert conditions; and (3) the carbon fiber produced by the above method.
Inventors:
Lehman, Andre
Eberlink, Horst
Fink, Hans-Peter
Eberlink, Horst
Fink, Hans-Peter
Application Number:
JP2014510790A
Publication Date:
September 27, 2017
Filing Date:
May 16, 2012
Export Citation:
Assignee:
Stra Enso Oijay
International Classes:
D01F2/02; B29C48/05; D01F9/17
Domestic Patent References:
| JP2002038334A | ||||
| JP10331027A | ||||
| JP37016466B1 |
Foreign References:
| US3461082 |
Attorney, Agent or Firm:
Asamura patent office