Process for manufacturing elastic hard fibers
    7.
    发明授权
    Process for manufacturing elastic hard fibers 失效
    制造弹性硬质纤维的方法

    公开(公告)号:US4006208A

    公开(公告)日:1977-02-01

    申请号:US622953

    申请日:1975-10-16

    IPC分类号: D01F6/66 D01D5/08

    CPC分类号: D01F6/66

    摘要: An elastic hard fiber composed mainly of polyisobutylene oxide and having an elastic recovery ratio of at least 70% from 50% extension and a work recovery ratio of at least 70% from 5% extension, is prepared by extruding molten polyisobutylene oxide at a temperature of from 175.degree. C up to the decomposition temperature thereof, cooling the extrudate rapidly to a temperature of -20.degree. to 70.degree. C, and spinning it at a draw ratio of 50 to 1000.

    摘要翻译: 通过在熔融聚异丁烯氧化物的温度下挤出熔融聚异丁烯氧化物,制备主要由聚异丁烯氧化物组成的弹性硬质纤维,弹性恢复率从50%延伸率至少70%,延伸率从5%延伸至70% 从175℃至其分解温度,将挤出物快速冷却至-20℃至70℃的温度,并以50至1000的拉伸比纺丝。