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. 28, 2021
Filed:
Dec. 29, 2020
Cofco (Jilin) Bio-chemical Technology Co., Ltd, Changchun, CN;
Nutrition & Health Research Institute, Cofco Corporation, Beijing, CN;
Jilin Cofco Biomaterial Co., Ltd, Changchun, CN;
Cofco Biotechnology Co., Ltd., Bengbu, CN;
Yi Tong, Beijing, CN;
Yi Li, Beijing, CN;
Kejia Xu, Beijing, CN;
Bohao Li, Changchun, CN;
Guoxing Zhao, Changchun, CN;
Zhaoning Cui, Beijing, CN;
COFCO (JILIN) BIO-CHEMICAL TECHNOLOGY CO., LTD, Changchun, CN;
NUTRITION & HEALTH RESEARCH INSTITUTE, COFCO CORPORATION, Beijing, CN;
JILIN COFCO BIOMATERIAL CO., LTD., Changchun, CN;
COFCO BIOTECHNOLOGY CO., LTD., Bengbu, CN;
Abstract
The present disclosure relates to the technical field of polymer material, and discloses a device and method for online preparation of a modified polylactic acid material with a polylactic acid melt. The device comprises a twin-screw extruder, a first solid modifier hopper, a polylactic acid melt pipeline and a polylactic acid melt feedstock metering pump, wherein the first solid modifier hopper is connected with Zone I of the twin-screw extruder, the polylactic acid melt pipeline is connected with Zone IV of the twin-screw extruder. The method for online preparation of modified polylactic acid material with the device can avoid degradation of the polylactic acid caused by the secondary processing, improve mechanical property of the prepared polylactic acid and reduce production cost.