发明公开
- 专利标题： Aliphatic polyester and preparation process thereof
- 专利标题（中）： 脂肪族聚酯，及其制备方法。
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申请号： EP94105079.1申请日： 1994-03-30
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公开(公告)号： EP0618249A3公开(公告)日： 1995-04-05
- 发明人: Kashima, Takeshi 543 Goshitsu , Kameoka, Taiji 543 Goshitsu , Higuchi, Chojiro , Ajioka, Masanobu , Yamaguchi, Akihiro
- 申请人： MITSUI TOATSU CHEMICALS, Inc.
- 申请人地址： 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 专利权人： MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人： MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人地址： 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 代理机构： Strehl Schübel-Hopf Groening & Partner
- 优先权： JP76538/93 19930402; JP145882/93 19930617; JP143228/93 19930615; JP321722/93 19931221
- 主分类号： C08G63/81
- IPC分类号： C08G63/81 ; C08G63/16 ; C08G63/60
摘要：
A preparation process of aliphatic polyester having a weight average molecular weight of 15,000 or more by conducting a direct polycondensation reaction of an aliphatic polyhydric alcohol or a mixed aliphatic polyhydric alcohol and an aliphatic polybasic acid or a mixed aliphatic polybasic acid, or additionally a hydroxycarboxylic acid or a mixed hydroxycarboxylic acid or an oligomer of the hydroxycarboxylic acid in a reaction mixture containing an organic solvent. The aliphatic polyester thus obtained contains an extremely small amount of impurities, has low color and can exhibit satisfactory strength in the form of films, filaments and other shaped articles.
公开/授权文献
- EP0618249B1 Aliphatic polyester and preparation process thereof 公开/授权日：2005-12-21
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