METHOD FOR PRODUCING ACRYLIC FIBER
    4.
    发明申请

    公开(公告)号:US20170335491A1

    公开(公告)日:2017-11-23

    申请号:US15673494

    申请日:2017-08-10

    IPC分类号: D01F6/40 D01D5/06

    CPC分类号: D01F6/40 D01D5/06 D01F1/10

    摘要: A method for producing acrylic fiber includes preparing a spinning solution including an acrylic copolymer, dimethyl sulfoxide, water, and a polyphosphate; and subjecting the spinning solution to wet spinning, wherein the acrylic copolymer includes acrylonitrile in an amount of 20 to 85 mass %, vinyl chloride in an amount of 14.5 to 79.5 mass %, and a sulfonic acid group-containing monomer in an amount of 0.5 to 10 mass % with respect to a total mass of the acrylic copolymer.