发明授权
- 专利标题： Ester-forming monomer
- 专利标题（中）： 成酯单体
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申请号： US10070740申请日： 2000-09-13
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公开(公告)号： US06867322B1公开(公告)日： 2005-03-15
- 发明人: Jinichiro Kato , Katsuhiro Fujimoto
- 申请人： Jinichiro Kato , Katsuhiro Fujimoto
- 申请人地址： JP Osaka
- 专利权人： Asahi Kasei Kabushiki Kaisha
- 当前专利权人： Asahi Kasei Kabushiki Kaisha
- 当前专利权人地址： JP Osaka
- 代理机构： Finnegan, Henderson, Farabow, Garrett, & Dunner, L.L.P.
- 优先权： JP11258509 19990913
- 国际申请： PCTJP00/06289 WO 20000913
- 国际公布： WO0119764 WO 20010322
- 主分类号： C07C27/02
- IPC分类号： C07C27/02 ; C07C29/09 ; C07C29/128 ; C07C67/03 ; C08G63/183 ; C08J11/24 ; D01F6/62 ; C07C63/313 ; B32B27/00 ; C07C67/48 ; C08F6/00 ; C08J11/04
摘要：
An ester-forming monomer obtained by depolymerization of polytrimethylene terephthalate and having an acrolein content of no greater than 0.5 wt %. Polymers obtained using the monomer and fibers, films and molded articles comprising the polymers. The ester-forming monomer is obtained by reacting polytrimethylene terephthalate with at least one compound selected from among monoalcohols, 1,3-propanediol and water in the presence of a basic substance. When the recovered ester-forming monomer is used as the starting material for production of a polymer, it is possible to produce a molding polymer for fibers, films and the like with quality equivalent to or higher than that obtained using virgin monomer.
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