发明授权
- 专利标题： Process for producing lactonized acrylic fibers
- 专利标题（中）： 生产精制丙烯腈纤维的方法
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申请号： US3768966D申请日： 1971-11-11
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公开(公告)号： US3768966A公开(公告)日： 1973-10-30
- 发明人: MATSUMURA Y , MARUYAMA K
- 申请人： JAPAN EXLAN CO LTD
- 专利权人： Japan Exlan Co Ltd
- 当前专利权人： Japan Exlan Co Ltd
- 优先权： JP12927570 1970-12-29
- 主分类号： C08F8/00
- IPC分类号： C08F8/00 ; C08F8/16 ; D01F6/18 ; D01F11/06 ; D06M11/00 ; D06M11/30 ; D06M11/55 ; D06M11/64 ; D06M13/248 ; D06M23/00 ; D06M101/00 ; D06M101/16 ; D06M101/18 ; D06M101/28 ; D06M9/00 ; D06M11/02
摘要：
The present invention relates to a process for producing lactonized acrylic fibers having a high Young''s modulus and improved elongation at break by treating an acrylic fiber made from an acrylic copolymer containing at least 50 percent by mol of acrylonitrile and a monomer having a hydroxyl group and/or a monomer capable of forming a hydroxyl group in an acid medium at a pH of not more than 2, said medium containing an organic and/or inorganic acid present in such concentrations as to avoid swelling or dissolving the treated material.
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