CARBON FIBERS DERIVED FROM LIGNIN/CARBON RESIDUE
    4.
    发明公开
    CARBON FIBERS DERIVED FROM LIGNIN/CARBON RESIDUE 审中-公开
    KOHLENSTOFFFASERN AUS LIGNIN- / KOHLENSTOFFREST

    公开(公告)号:EP2920344A1

    公开(公告)日:2015-09-23

    申请号:EP13854547.0

    申请日:2013-11-05

    IPC分类号: D01F9/12 C07G1/00 C08H7/00

    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.

    摘要翻译: 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余物混合,由此形成纤维前体混合物; 并将纤维前体混合物纺丝成纤维。 一种制备碳纤维的方法,其包括用酸衍生物酯化木质素,从而形成降低的Tg木质素。 将降低的Tg木质素与沥青混合,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。 一种制造碳纤维的方法,包括降低木质素材料的Tg,从而形成Tg降低的木质素。 将还原的Tg木质素与碳残余物混合,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。

    CARBON FIBERS DERIVED FROM LIGNIN
    5.
    发明公开
    CARBON FIBERS DERIVED FROM LIGNIN 审中-公开
    KOHLENSTOFFFASERN AUS LIGNIN

    公开(公告)号:EP2898126A1

    公开(公告)日:2015-07-29

    申请号:EP13838723.8

    申请日:2013-08-20

    IPC分类号: D01F9/17 C07G1/00

    CPC分类号: D01F9/17 C07G1/00 D01D5/06

    摘要: 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.

    摘要翻译: 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,将前体的玻璃化转变温度(Tg)提高至少5%(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。