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Title:
MODIFIED POLYGLYCOLIC ACID, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/037319
Kind Code:
A1
Abstract:
A modified polyglycolic acid, a preparation method therefor and the use thereof. The modified polyglycolic acid comprises a structural unit A derived from polyglycolic acid and a structural unit B derived from a polyisocyanate compound, with the molar ratio of the structural unit A to the structural unit B being ＞400:1. The modified polyglycolic acid has characteristics such as a high weight-average molecular weight, a high melt viscosity and a low melt flow rate. In addition, the tensile strength thereof is high, and the heat stability is also greatly improved.

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Inventors:
SUN XIAOJIE (CN)
CHEN LANLAN (CN)
WANG RONG (CN)
LIANG WENBIN (CN)
Application Number:
PCT/CN2021/105985
Publication Date:
February 24, 2022
Filing Date:
July 13, 2021
Export Citation:
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Assignee:
CHINA ENERGY INVESTMENT CORP LTD (CN)
NAT INST CLEAN & LOW CARBON ENERGY (CN)
International Classes:
C08J7/00; C08G63/91; C08J7/12; C08L67/04
Foreign References:
CN109535470A2019-03-29
CN111454552A2020-07-28
CN111108138A2020-05-05
CN110041502A2019-07-23
JP2011052110A2011-03-17
CN106432697A2017-02-22
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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