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11. 发明授权

US08163841B2 Polyethylene naphthalate fibers and method for producing the same 失效
标题翻译：聚萘二甲酸乙二醇酯纤维及其制造方法
公开(公告)号：US08163841B2
公开(公告)日：2012-04-24
申请号：US12922352
申请日：2009-03-04
申请人： Shintaro Shimada , Fuyuki Terasaka
发明人： Shintaro Shimada , Fuyuki Terasaka
IPC分类号： C08L67/03
CPC分类号： D01F6/62 , D01D5/098 , D01D10/02 , D01F1/10
摘要： Polyethylene naphthalate fibers that are characterized in that the fibers have a crystal volume of from 550 to 1,200 nm3 obtained by wide angle X-ray diffraction of the fiber and a degree of crystallization of from 30 to 60%. It is preferred that the fibers have a maximum peak diffraction angle of wide angle X-ray diffraction of from 25.5 to 27.0° and a melting point of from 285 to 315° C. The production method thereof is characterized in that a particular phosphorus compound is added to the polymer in a molten state, the spinning draft ratio after discharging from the spinneret is from 100 to 5,000, and the molten polymer immediately after discharging from the spinneret is allowed to pass through a heat-retaining spinning chimney at a temperature within ±50° C. of a temperature of the molten polymer, and is drawn.
摘要翻译：聚萘二甲酸乙二醇酯纤维，其特征在于纤维通过纤维的广角X射线衍射获得的结晶体积为550〜1200nm，结晶度为30〜60％。优选的是，所述纤维的广角X射线衍射的最大峰值衍射角为25.5〜27.0℃，熔点为285〜315℃。其制造方法的特征在于，特定的磷化合物为在熔融状态下添加到聚合物中，从喷丝头排出后的纺丝牵伸比为100〜5000，将从喷丝头排出后立即熔融的聚合物通过保温纺丝筒，温度为± 熔融聚合物的温度为50℃，并被拉伸。

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