发明授权
US5684119A Solutions of polyamideimides in .gamma.-butyrolactone, process for
obtaining them and the yarns thus obtained
失效
聚酰胺酰亚胺在γ-丁内酯中的溶液，得到它们的方法和由此得到的纱线
- 专利标题： Solutions of polyamideimides in .gamma.-butyrolactone, process for obtaining them and the yarns thus obtained
- 专利标题（中）： 聚酰胺酰亚胺在γ-丁内酯中的溶液，得到它们的方法和由此得到的纱线
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申请号： US244385申请日： 1994-06-10
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公开(公告)号： US5684119A公开(公告)日： 1997-11-04
- 发明人: Philippe Michaud , Jean Russo
- 申请人： Philippe Michaud , Jean Russo
- 申请人地址： FRX Saint-Fons Cedex
- 专利权人： Rhone-Poulenc Fibres
- 当前专利权人： Rhone-Poulenc Fibres
- 当前专利权人地址： FRX Saint-Fons Cedex
- 优先权： FRX9116338 19911224
- 主分类号： C08K5/12
- IPC分类号： C08K5/12 ; C08G73/14 ; C08J3/09 ; C08L79/08 ; D01F6/74
摘要：
Directly shapeable clear solutions of polyamide imides and a method for preparing same are provided. The solutions are obtained by polycondensation in .gamma.-butyrolactone (.gamma.BL) in substantially stoichiometric proportions between toluylene diisocyanate and an aromatic acid anhydride, and by dilution in (.gamma.BL) to give a solution allowing them to be processed at a later stage. Yarns and fibers made from said solutions are also described.
公开/授权文献
- US4927876A Aqueous dispersions 公开/授权日：1990-05-22
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