发明名称 |
POLYLACTIC ACID RESIN, METHOD FOR PRODUCING POLYLACTIC ACID RESIN, POLYLACTIC ACID RESIN COMPOSITION, STEREOCOMPLEX POLYLACTIC ACID RESIN COMPOSITION, AND METHOD FOR PRODUCING STEREOCOMPLEX POLYLACTIC ACID RESIN COMPOSITION |
摘要 |
The invention provides a polylactic acid-based resin having a high molecular weight, high heat resistance and an amide bond in its molecular chain, a production process and a use thereof. The polylactic acid-based resin comprises a constituting unit represented by the following formula (1) and which is obtained by allowing a polyisocyanate compound to react with a mixture comprising at least a poly (L-lactic acid) in which the percentage of the terminal functional group which is a carboxyl group exceeds 50% and a poly(D-lactic acid) in which the percentage of the terminal functional group which is a carboxyl group exceeds 50%.
(in the formula (1), R is a polyisocyanate residue and represents an aliphatic hydrocarbon group having 1 to 20 carbon atoms, a hydrocarbon group having an alicyclic structure and 3 to 20 carbon atoms or a hydrocarbon group having an aromatic ring and 6 to 20 carbon atoms.) |
申请公布号 |
EP2450388(A1) |
申请公布日期 |
2012.05.09 |
申请号 |
EP20100794172 |
申请日期 |
2010.06.30 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
OGAWA, RYOHEI;USUGI, SHINICHI;MIZUMA, HIROKAZU;TOTANI, YOSHIYUKI;TSUJI, MASASHI;HASEGAWA, AKIRA;HORI, HIDESHI |
分类号 |
C08G18/42;C08G18/73;C08G18/75;C08G63/91;C08K5/00;C08L67/04;C08L75/00;C08L75/06;C08L101/16 |
主分类号 |
C08G18/42 |
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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