公开(公告)号：US20180305844A1

公开(公告)日：2018-10-25

申请号：US15766470

申请日：2016-10-06

Applicant: Stora Enso OYJ

Inventor： Niklas Garoff ,  Robert Protz ,  Jens Erdmann ,  Johannes Ganster ,  Andre Lehmann

IPC: D01F9/17 ,  C08L1/02 ,  C08L97/00 ,  D01D5/06 ,  D01F2/02

CPC classification number: D01F9/17 ,  C08L1/02 ,  C08L97/00 ,  C08L97/005 ,  C08L2203/12 ,  D01D5/06 ,  D01F2/02 ,  D01F9/00 ,  D01F9/16 ,  D10B2201/00

Abstract: The present invention relates to a method for manufacturing a shaped body comprising lignin which may be further processed into intermediate carbon fibers and finally also carbon fibers. Uses of said fibers are also disclosed. The present invention addresses the problem of lignin leaching into a precipitation bath. The solution to this problem is a novel method for minimizing the loss of lignin through the addition of certain salts into the precipitation bath.

公开(公告)号：US10968540B2

公开(公告)日：2021-04-06

申请号：US15766470

申请日：2016-10-06

Applicant: Stora Enso OYJ

Inventor： Niklas Garoff ,  Robert Protz ,  Jens Erdmann ,  Johannes Ganster ,  Andre Lehmann

IPC: D01F9/17 ,  D01D5/06 ,  D01F2/02 ,  C08L97/00 ,  D01F9/16 ,  D01F9/00 ,  C08L1/02

Abstract: The present invention relates to a method for manufacturing a shaped body comprising lignin which may be further processed into intermediate carbon fibers and finally also carbon fibers. Uses of said fibers are also disclosed. The present invention addresses the problem of lignin leaching into a precipitation bath. The solution to this problem is a novel method for minimizing the loss of lignin through the addition of certain salts into the precipitation bath.

公开(公告)号：US20190085484A1

公开(公告)日：2019-03-21

申请号：US15766457

申请日：2016-10-06

Applicant: Stora Enso OYJ

Inventor： Niklas Garoff ,  Robert Protz ,  Jens Erdmann ,  Johannes Ganster ,  Andre Lehmann

IPC: D01F11/02 ,  C08L97/00 ,  D01F9/17 ,  D01F2/00 ,  D06M13/127 ,  D06M13/144 ,  D06M13/224 ,  D06M13/35

Abstract: The present invention relates to a method for manufacturing precursor yarn comprising lignin, which may be further processed into intermediate carbon fibers and finally also carbon fibers. It also relates to carbon fibers and uses of said fibers. Said method involves applying a water-free spin finish.

公开(公告)号：US12234577B2

公开(公告)日：2025-02-25

申请号：US15766457

申请日：2016-10-06

Applicant: Stora Enso OYJ

Inventor： Niklas Garoff ,  Robert Protz ,  Jens Erdmann ,  Johannes Ganster ,  Andre Lehmann

IPC: D01F11/02 ,  C08L1/02 ,  C08L97/00 ,  D01F2/00 ,  D01F9/00 ,  D01F9/16 ,  D01F9/17 ,  D01F9/22 ,  D01F11/00 ,  D06M13/127 ,  D06M13/144 ,  D06M13/224 ,  D06M13/35

Abstract: The present invention relates to a method for manufacturing precursor yarn comprising lignin, which may be further processed into intermediate carbon fibers and finally also carbon fibers. It also relates to carbon fibers and uses of said fibers. Said method involves applying a water-free spin finish.