| 发明名称 |
DEPOLYMERIZATION METHOD OF POLYLACTIC ACID |
| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for manufacturing methyl lactate of good qualities by depolymerizing polylactic acid by using an easily handleable catalyst capable of preventing deterioration in qualities of lactic acid. <P>SOLUTION: The depolymerization method of polylactic acid comprises alcoholyzing polylactic acid using methanol at 60-100°C in the presence of a zinc compound catalyst composed of a zinc organic carboxylate and/or zinc carbonate. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
| 申请公布号 |
JP2009029757(A) |
申请公布日期 |
2009.02.12 |
| 申请号 |
JP20070197628 |
申请日期 |
2007.07.30 |
| 申请人 |
TEIJIN FIBERS LTD |
发明人 |
ISHIHARA KENICHI;NAKAJIMA MINORU |
| 分类号 |
C07C59/08;C07B61/00;C07C51/09;C07C67/08;C07C69/68;C08J11/16;C08J11/24;C08J11/26 |
主分类号 |
C07C59/08 |
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