Invention Grant
- Patent Title: Polylactic acid block copolymers and preparation methods thereof
- Patent Title (中): 聚乳酸嵌段共聚物及其制备方法
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Application No.: US13990541Application Date: 2011-11-29
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Publication No.: US09365672B2Publication Date: 2016-06-14
- Inventor: Jian Zhou , Peng Chen , Qun Gu , Jun Li , Wentao Shi , Zongbao Wang , Zhiqiang Jiang , Xuedong Wu
- Applicant: Jian Zhou , Peng Chen , Qun Gu , Jun Li , Wentao Shi , Zongbao Wang , Zhiqiang Jiang , Xuedong Wu
- Applicant Address: CN Ningbo, Zhejiang
- Assignee: Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences
- Current Assignee: Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences
- Current Assignee Address: CN Ningbo, Zhejiang
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: CN201010568888 20101130; CN201110122513 20110512
- International Application: PCT/CN2011/083125 WO 20111129
- International Announcement: WO2012/072023 WO 20120607
- Main IPC: C08G63/08
- IPC: C08G63/08 ; C08G63/60
Abstract:
A polylactic acid triblock copolymer and a preparation method thereof are described. The polylactic acid triblock copolymer comprises an aromatic polyester oligomer block and a polylactic acid block. The polylactic acid triblock copolymer is obtained by reacting an aromatic polyester oligomer with a monomer lactide at a desired temperature. The polylactic acid block copolymer has a regular structure indicated by peak melting temperatures (Tm) corresponding to the aromatic polyester oligomer block and the polylactic acid block, respectively. Examples of the aromatic polyester oligomer block include polyethylene terephthalate, polybutylene terephthalate, and polyethylene 1,4-naphthalate. Examples of the monomer lactide include L-lactide and D-lactide.
Public/Granted literature
- US20130324680A1 POLYLACTIC ACID BLOCK COPOLYMERS AND PREPARATION METHODS THEREOF Public/Granted day:2013-12-05
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