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    • 9. 发明授权
    • Filaments and fibers of acrylonitrile copolymer mixtures
    • 丙烯腈共聚物混合物的丝和纤维
    • US4383086A
    • 1983-05-10
    • US154488
    • 1980-05-29
    • Walter FesterBernd HuberGerhard Schmidt
    • Walter FesterBernd HuberGerhard Schmidt
    • D01F6/54C08L33/20
    • D01F6/54Y10S525/931
    • The invention relates to flame-retarding filaments and fibers and a process for the manufacture thereof. The filament-forming substance is a mixture of from 20 to 70 weight % of an acrylonitrile copolymer A containing at least 80 weight % of acrylonitrile units and from 0.3 to 20 weight % of other units copolymerizable with acrylonitrile, and from 80 to 30 weight % of an acrylonitrile copolymer B containing from 50 to 75 weight % of acrylonitrile units, from 25 to 45 weight % of vinyl chloride and/or vinylidene chloride units and from 0 to 5 weight % of other units copolymerizable with acrylonitrile.The filaments and fibers have a boil-off shrinkage of at least 20% and a knot strength of at least 10 cN/tex and are obtained by spinning the turbid solutions of the copolymer mixture, which however do not separate into components, in an aprotic solvent, and drawing of the filaments in a moderate ratio.
    • 本发明涉及阻燃长丝和纤维及其制造方法。 长丝形成物质是20至70重量%的丙烯腈共聚物A的混合物,其含有至少80重量%的丙烯腈单元和0.3至20重量%的可与丙烯腈共聚的其它单元,以及80至30重量% 的丙烯腈共聚物B,其含有50至75重量%的丙烯腈单元,25至45重量%的氯乙烯和/或偏二氯乙烯单元和0至5重量%的可与丙烯腈共聚的其它单元。 长丝和纤维具有至少20%的蒸发收缩率和至少10cN / tex的结强度,并且通过将共混物混合物的混浊溶液纺丝(然而不分离成组分)得到非质子传递 溶剂和长丝以适中的比例拉伸。