Starting pitch for carbon fibers
    3.
    发明授权
    Starting pitch for carbon fibers 失效
    碳纤维起始间距

    公开(公告)号:US4579645A

    公开(公告)日:1986-04-01

    申请号:US484155

    申请日:1983-04-12

    摘要: Provided is a starting pitch for producing carbon fiber by heat-treating the starting pitch to obtain a precursor pitch, melt-spinning the precursor pitch, then rendering the resultant pitch fiber infusible, followed by carbonization, and further followed by graphitization if required, the starting pitch comprising a mixture of (a) 100 parts by weight of a pitch and (b) 5 to 500 parts by weight of a methanol-insoluble and benzene-soluble component contained in a heavy oil obtained in a fluid catalytic cracking of petroleum, the heavy oil having a boiling range not lower than 200.degree. C.

    摘要翻译: 提供通过热处理起始间距以获得前体沥青,熔融纺丝前体沥青,然后使所得沥青纤维不熔化,然后碳化,然后如果需要石墨化,然后进行石墨化,生产碳纤维的起始沥青 起始沥青包含(a)100重量份沥青和(b)5至500重量份在石油流化催化裂化中获得的重油中所含的甲醇不溶性和苯可溶性组分的混合物, 重油的沸点不低于200℃