发明授权
- 专利标题： Process for producing highly oriented undrawn polyester fibers
- 专利标题（中）： 生产高取向未拉伸聚酯纤维的方法
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申请号： US843009申请日： 1997-04-11
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公开(公告)号： US5849232A公开(公告)日： 1998-12-15
- 发明人: Takashi Ochi , Akira Kishiro , Mototada Fukuhara , Atsushi Taniguchi , Takeshi Kikutani
- 申请人： Takashi Ochi , Akira Kishiro , Mototada Fukuhara , Atsushi Taniguchi , Takeshi Kikutani
- 申请人地址： JPX
- 专利权人： Toray Industries, Inc.
- 当前专利权人： Toray Industries, Inc.
- 当前专利权人地址： JPX
- 优先权： JPX7-042650 19950302; JPX7-340858 19951227
- 主分类号： D01F8/14
- IPC分类号： D01F8/14 ; D01D5/34 ; D01F8/04
摘要：
A process for preparing highly oriented undrawn core-sheath type conjugated polyester fibers including the step of spinning a polyester as the sheath polymer and a polymer having a larger gradient of elongational viscosity with the temperature than that of the sheath polymer as a core polymer at a spinning speed of about 4000 to 12000 m/min.
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