发明名称 |
METHOD OF RECOVERING LACTIDE FROM POLYLACTIC ACID OR DERIVATIVE THEREOF |
摘要 |
<p>To provide an efficient method for recovering and producing lactide having high optical purity by depolymerizing a polylactic acid or derivative thereof in order to carry out chemical recycling of the polylactic acid or derivative thereof or of a resin composition comprising same, wherein a mixture of a polylactic acid or derivative thereof and aluminum hydroxide is thermally decomposed at a temperature in a range from at least the melting temperature of the polylactic acid or derivative thereof to no greater than 320°C, thus recovering lactide.</p> |
申请公布号 |
EP1741707(A4) |
申请公布日期 |
2009.02.25 |
申请号 |
EP20050734554 |
申请日期 |
2005.04.25 |
申请人 |
KYUSHU INSTITUTE OF TECHNOLOGY;KITAKYUSHU FOUNDATION FOR THE ADVANCEMENT OF INDUSTRY, SCIENCE AND TECHNOLOGY |
发明人 |
NISHIDA, HARUO;FAN, YUJIANG;SHIRAI, YOSHIHITO |
分类号 |
C07D319/12;C08J11/16 |
主分类号 |
C07D319/12 |
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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