发明授权
US5391682A Thermoplastic polyurethane elastomer, process for producing same,
apparatus producing same and elastomer fibers made from same
失效
热塑性聚氨酯弹性体，其制造方法，制造装置以及由其制成的弹性体纤维
- 专利标题： Thermoplastic polyurethane elastomer, process for producing same, apparatus producing same and elastomer fibers made from same
- 专利标题（中）： 热塑性聚氨酯弹性体，其制造方法，制造装置以及由其制成的弹性体纤维
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申请号： US175359申请日： 1993-12-30
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公开(公告)号： US5391682A公开(公告)日： 1995-02-21
- 发明人: Yasuhiro Ogawa , Kenzo Sagawa , Takahiro Kitano , Michiya Yamashita , Tadaaki Yamada , Toshio Yamauchi
- 申请人： Yasuhiro Ogawa , Kenzo Sagawa , Takahiro Kitano , Michiya Yamashita , Tadaaki Yamada , Toshio Yamauchi
- 申请人地址： JPX Tokyo
- 专利权人： Kanebo, Ltd.
- 当前专利权人： Kanebo, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX3-190707 19910703; JPX3-282151 19911001; JPX4-79001 19920229
- 主分类号： C08G18/08
- IPC分类号： C08G18/08 ; C08G18/10 ; D01F6/70
摘要：
A thermoplastic polyurethane elastomer containing a very small amount of small grains, and having a high molecular weight and a narrow molecular-weight distribution. Such high-quality thermoplastic polyurethane is excellent in melt moldability and allows to prevent yarn breakage in producing fibers by melt spinning, for example. Such polyurethane elastomer can be produced by melt-polymerizing a prepolymer and a low-molecular diol at a relatively high temperature in a short period of time. This invention also provides an apparatus for producing the polyurethane elastomer, and fibers formed of said elastomer.
公开/授权文献
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