发明授权
- 专利标题： Process for the preparation of polybenzazole staple fiber
- 专利标题（中）： 制备聚吲哚短纤维的方法
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申请号： US365614申请日： 1994-12-28
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公开(公告)号： US5585052A公开(公告)日： 1996-12-17
- 发明人: Chieh-Chun Chau , Ritchie A. Wessling , Katsuya Tani , Masaru Nakagawa , Takaharu Ichiryu
- 申请人： Chieh-Chun Chau , Ritchie A. Wessling , Katsuya Tani , Masaru Nakagawa , Takaharu Ichiryu
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： D01D5/26
- IPC分类号： D01D5/26 ; D01D10/00 ; D01D10/06 ; D01F6/74
摘要：
The invention is a process for the preparation of polybenzazole staple fibers which includes extruding a solution of polybenzazole polymer to form a dope filament, cutting the dope filament to a desired length, and washing and drying the cut filament. It has been discovered that the process of the invention provides a suitable means to prepare staple fibers which does not require the cutting of washed, rigid polybenzazole filaments.
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