CARBON FIBERS DERIVED FROM LIGNIN/CARBON RESIDUE,申请号EP20130854547-传众专利搜索

CARBON FIBERS DERIVED FROM LIGNIN/CARBON RESIDUE

申请公布号：EP2920344(A1)

申请号：EP20130854547

申请日期：2013.11.05

申请公布日期：2015.09.23

申请人：

GRAFTECH INTERNATIONAL HOLDINGS INC.

发明人：ADRIANOWYCZ, OREST, L.;ALNASLEH, BASSAM, KAMAL;CHANG, CHING-FENG;GUL, OMER;HAUSNER, ANDREW, ADAM;MILLER, ROBERT, E.

分类号：D01F9/17;C07G1/00;C08H7/00;C08L95/00;C08L97/00;D01F9/145

主分类号：D01F9/17

摘要：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. A method of making a carbon fiber comprising esterification of a lignin with an acid derivative, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a pitch, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising lowering the Tg of a lignin material, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue, thereby forming a fiber precursor mixture and spinning the fiber precursor mixture into a fiber.