The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2016
Filed:
Nov. 29, 2011
Jian Zhou, Zhejiang, CN;
Peng Chen, Zhejiang, CN;
Qun Gu, Zhejiang, CN;
Jun LI, Zhejiang, CN;
Wentao Shi, Zhejiang, CN;
Zongbao Wang, Zhejiang, CN;
Zhiqiang Jiang, Zhejiang, CN;
Xuedong Wu, Zhejiang, CN;
Jian Zhou, Zhejiang, CN;
Peng Chen, Zhejiang, CN;
Qun Gu, Zhejiang, CN;
Jun Li, Zhejiang, CN;
Wentao Shi, Zhejiang, CN;
Zongbao Wang, Zhejiang, CN;
Zhiqiang Jiang, Zhejiang, CN;
Xuedong Wu, Zhejiang, CN;
Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, CN;
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.