发明名称 |
Organic-acid-based catalyst for production of polylactic acid |
摘要 |
Provided is a new organic-acid-based catalyst enabling production of a polyhydroxycarboxylic acid by direct dehydration polycondensation of a hydroxycarboxylic acid such as L-lactic acid, specifically, an organic-acid-based catalyst comprising an amine salt of a sulfonic acid or a phosphine salt of a sulfonic acid for production of polyhydroxycarboxylic acids such as poly-L-lactic acid.
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申请公布号 |
US2009176963(A1) |
申请公布日期 |
2009.07.09 |
申请号 |
US20070308066 |
申请日期 |
2007.06.12 |
申请人 |
ABIKO ATSUSHI;IWAHASHI HISAKO |
发明人 |
ABIKO ATSUSHI;IWAHASHI HISAKO |
分类号 |
C08G63/82;C07C309/02;C07D213/06;C07D233/54 |
主分类号 |
C08G63/82 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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