发明授权
- 专利标题： Processes for preparing thermostable fibers and filaments
- 专利标题（中）： 制备耐热纤维和长丝的方法
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申请号： US473050申请日： 1983-03-07
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公开(公告)号： US4524041A公开(公告)日： 1985-06-18
- 发明人: Walter Fester , Bernd Huber
- 申请人： Walter Fester , Bernd Huber
- 申请人地址： DEX
- 专利权人： Hoechst Aktiengesellschaft
- 当前专利权人： Hoechst Aktiengesellschaft
- 当前专利权人地址： DEX
- 优先权： DEX3209795 19820318
- 主分类号： D06M11/00
- IPC分类号： D06M11/00 ; D01F6/18 ; D01F9/22 ; D01F11/06 ; D06M11/13 ; D06M11/56 ; D06M11/84 ; D06M101/00 ; D06M101/16 ; D06M101/18 ; D06M101/28 ; D01F6/00
摘要：
The invention relates to continuous processes for preparing dimethylformamide-insoluble acrylic filaments and fibers which incur a weight loss of at most 20, preferably 15% on being heated up to 400.degree. C., by spinning appropriate polymer solutions, treating the filament bundles obtained before the first drying or heating stage in a continuous manner with an aqueous solution containing copper(I) ions, thermally fixing the copper content, and heating the bundles to 200.degree. to 350.degree. C.
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