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:
Sep. 14, 2021
Filed:
Dec. 30, 2020
Nutrition & Health Research Institute, Cofco Corporation, Beijing, CN;
Cofco (Jilin) Bio-chemical Technology Co., Ltd, Changchun, CN;
Jilin Cofco Biomaterial Co., Ltd, Changchun, CN;
Cofco Biotechnology Co., Ltd., Bengbu, CN;
Yi Tong, Beijing, CN;
Yi Li, Beijing, CN;
Bo Chen, Beijing, CN;
Peng Chen, Ningbo, CN;
Weiqiang Zhou, Beijing, CN;
Zhigang Liu, Changchun, CN;
Tai An, Beijing, CN;
Xiaoyan Wang, Beijing, CN;
Chao Peng, Beijing, CN;
Kai Yang, Beijing, CN;
Nutrition & Health Research Institute, COFCO Corporation, Beijing, CN;
COFCO (jilin) Bio-Chemical Technology Co., Ltd, Changchun, CN;
Jilin COFCO Biomaterial Co., Ltd, Changchun, CN;
COFCO Biotechnology Co., Ltd., Bengbu, CN;
Abstract
The present disclosure relates to the technical field of biotechnology and polymer synthesis, and discloses a method for producing polylactic acid, the method comprises the following steps: (i) inoculating a lactic acid fermentation strain into a lactic acid fermentation culture medium to perform a fermentation, so as to obtain a fermentation broth containing lactate; (ii) separating the fermentation broth to obtain a lactic acid; (iii) synthesizing a polymer-grade lactide by using the lactic acid as a raw material; (iv) subjecting the polymer-grade lactide to a polymerization reaction in a polymerization reaction device to obtain a polylactic acid. Through the above technical solution, the polylactic acid can be efficiently produced in the present disclosure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile