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    • 2. 发明授权
    • Process for preparing polyketone fibres
    • 制备聚酮纤维的方法
    • US06495075B1
    • 2002-12-17
    • US09582947
    • 2000-07-28
    • Hendrik MiddeljansJannes VeurinkJohannes A. Juijn
    • Hendrik MiddeljansJannes VeurinkJohannes A. Juijn
    • D01D5084
    • D01F6/30
    • The invention pertains to a process for preparing thermoplastic fibres by melt-spinning an alternating co-polymer composed of alkenes and carbon monoxide in which the polymer is heated to a temperature of at least TNF+5° C., with TNF being the temperature at which the molten polymer is free of crystallization nuclei, and where the residence time of the polymer at a single temperature or different temperatures above the polymer melting point satisfies: [ ∑ n = 1 ∞ ⁢ t n · exp ⁢   ⁢ ( A + B T n ) ] ≤ 1. wherein tn is the residence time (in minutes) of the polymer at a temperature Tn (in K, with Tn>Tm) and A and B are determined by measuring the viscosity of the polymer at different temperatures and residence times.
    • 本发明涉及通过将由烯烃和一氧化碳组成的交替共聚物熔融纺丝制备热塑性纤维的方法,其中将聚合物加热至至少TNF + 5℃的温度,其中TNF为 其中熔融聚合物不含结晶核,并且其中聚合物在单一温度或高于聚合物熔点的不同温度下的停留时间满足:其中tn是在温度Tn下聚合物的停留时间(以分钟为单位) 在K中,Tn> Tm),A和B通过在不同温度和停留时间下测量聚合物的粘度来测定。