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    • 4. 发明授权
    • Process for melt-spinning acrylonitrile polymer fiber
    • 熔融纺丝丙烯腈聚合物纤维的工艺
    • US4205039A
    • 1980-05-27
    • US895576
    • 1978-04-12
    • William E. StreetmanShashikumar H. Daftary
    • William E. StreetmanShashikumar H. Daftary
    • D01F6/18D01D5/00D01F6/38
    • D01F6/38
    • Spinning of a melt of water and an acrylonitrile polymer containing hydrophobic moieties through a spinnerette into a steam-pressurized solidification zone results in improved fiber when the amount of water in the melt is in the lower half of the range necessary to provide the melt under the conditions of extrusion, the amount of hydrophilic moieties contained in the polymer are sufficient to control the rate of release of water from the extrudate, the steam conditions in the solidification are sufficient to prevent formation of a separate water phase, and drying of the resulting extrudate under conditions of temperature and humidity to remove water therefrom while avoiding formation of a separate water phase.
    • 将含有疏水部分的水熔体和含有疏水部分的丙烯腈聚合物通过纺丝板纺丝到蒸汽加压固化区中的纺丝导致改进的纤维,当熔体中的水量在下面提供熔体所需的范围的下半部分时 挤出条件下,聚合物中包含的亲水部分的量足以控制从挤出物中释放出的水的速率,固化过程中的蒸汽条件足以防止形成单独的水相,并将所得挤出物干燥 在温度和湿度的条件下从而除去水,同时避免形成单独的水相。