公开(公告)号：WO2014046826A1

公开(公告)日：2014-03-27

申请号：PCT/US2013/055654

申请日：2013-08-20

Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.

Inventor： CHANG, Ching-Feng ,  ALNASLEH, Bassam, Kamal ,  GUL, Omer ,  MILLER, Robert, E. ,  HAUSNER, Andrew, Adam ,  ADRIANOWYCZ, Orest, L. ,  CHEN, Chong ,  ASKEY, Brian, Paul

IPC: D01F9/17 ,  C07G1/00

CPC classification number: D01F9/17 ,  C07G1/00 ,  D01D5/06

Abstract: A method of making a carbon fiber includes heat treating a lignin precursor absent an active ingredient in an inert atmosphere to raise the glass transition temperature (Tg) of the precursor by at least five (5%) percent, forming a lignin precursor having an increased Tg (High Tg Lignin). The High Tg Lignin can be spun into a fiber. The fiber may then be stabilized to form a thermoset fiber. The time period for stabilizing the fiber is less than one hundred (100) hours.

Abstract translation: 制备碳纤维的方法包括在惰性气氛中热处理没有活性成分的木质素前体，以将前体的玻璃化转变温度（Tg）提高至少五（5％）％，形成具有增加的木质素前体 Tg（高Tg木质素）。 高Tg木质素可以纺成纤维。 然后可以将纤维稳定以形成热固性纤维。 纤维稳定时间小于一百（100）小时。

公开(公告)号：WO2014078120A1

公开(公告)日：2014-05-22

申请号：PCT/US2013/068388

申请日：2013-11-05

Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.

Inventor： ADRIANOWYCZ, Orest, L. ,  ALNASLEH, Bassam, Kamal ,  CHANG, Ching-Feng ,  GUL, Omer ,  HAUSNER, Andrew, Adam ,  MILLER, Robert, E.

IPC: D01F9/12 ,  C07G1/00 ,  C08H7/00

CPC classification number: D01F9/17 ,  C07G1/00 ,  C08H6/00 ,  C08L95/00 ,  C08L97/005 ,  D01F9/145

Abstract: A method of making a carbon fiber comprising esterification of a lignin precursor with an acid, acid anhydride, or acyl halide, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue selected from the group of coal based raw material, petroleum based raw material and combinations thereof, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber.

Abstract translation: 一种制备碳纤维的方法，其包括用酸，酸酐或酰基卤酯化木质素前体，从而形成降低的Tg木质素。 将还原的Tg木质素与选自煤基原料，石油基原料及其组合的碳残渣混合，从而形成纤维前体混合物; 并将纤维前体混合物纺丝成纤维。