公开(公告)号：WO2013112100A1

公开(公告)日：2013-08-01

申请号：PCT/SE2013/050039

申请日：2013-01-21

Applicant: INNVENTIA AB

Inventor： SJÖHOLM, Elisabeth ,  GELLERSTEDT, Göran ,  DROUGGE, Rickard ,  NORBERG, Ida

IPC: D01D10/02 ,  C08H7/00 ,  D01F9/17

CPC classification number: D01F9/17 ,  B29C47/0004 ,  B29C47/0011 ,  B29C47/0014 ,  B29C47/8805 ,  B29K2096/00 ,  B29K2105/0067 ,  B29L2031/731 ,  C01B32/05 ,  C08H6/00 ,  D01D5/08 ,  D01D10/02 ,  D01F9/00

Abstract: A method for producing a stabilized lignin fiber from softwood alkaline lignin by heat treatment in the absence of oxidant is disclosed. The stabilized lignin fiber can be further treated to obtain carbon fiber.

Abstract translation: 公开了一种通过在不存在氧化剂的情况下通过热处理从软木碱性木质素生产稳定的木质素纤维的方法。 可以进一步处理稳定的木质素纤维以获得碳纤维。

公开(公告)号：WO2019151937A1

公开(公告)日：2019-08-08

申请号：PCT/SE2019/050091

申请日：2019-02-04

Applicant: RISE INNVENTIA AB

Inventor： BERTHOLD, Fredrik ,  SJÖHOLM, Elisabeth ,  ALVARADO, Fernando ,  PETTERSSON, Henrik

IPC: D01F9/17 ,  C08H7/00 ,  D01D5/06 ,  D01F9/04

Abstract: The present disclosure relates to a method for the production of precursor fiber for the production of carbon fiber, comprising the steps: a) providing a spinning dope comprising a lignin and a gelling hydrocolloid dispersed in aqueous alkaline solution (s201); b) extruding the spinning dope through a spinning nozzle to provide an initial fiber (s203); and c) passing the initial fiber through a first coagulation liquid to provide the precursor fiber (s205); wherein the first coagulation liquid is arranged to effect gelling of the gelling hydrocolloid by regulation of pH and/or ionicity. The disclosure further relates to precursor fibers and carbon fibers produced by the method above.

公开(公告)号：WO2012112108A1

公开(公告)日：2012-08-23

申请号：PCT/SE2012/050141

申请日：2012-02-13

Applicant: INNVENTIA AB ,  SJÖHOLM, Elisabeth ,  GELLERSTEDT, Göran ,  DROUGGE, Rickard ,  BRODIN, Ida ,  NORDSTRÖM, Ylva

Inventor： SJÖHOLM, Elisabeth ,  GELLERSTEDT, Göran ,  DROUGGE, Rickard ,  BRODIN, Ida

IPC: D01F9/17 ,  C07G1/00 ,  D01D1/02

CPC classification number: C01B31/00 ,  C01B32/00 ,  C01B32/05 ,  C07G1/00 ,  D01F9/00 ,  D01F9/17

Abstract: Disclosed is a method of producing a continuous lignin fiber from softwood and/or hardwood alkali lignin. The lignin fiber can be further treated to obtain structural carbon fiber.

Abstract translation: 公开了从软木和/或硬木碱性木质素生产连续木质素纤维的方法。 可以进一步处理木素纤维以获得结构碳纤维。