Title:
METHOD FOR SYNTHESIZING BIODEGRADABLE BLOCK COPOLYESTER AND BLOCK COPOLYESTER
Document Type and Number:
WIPO Patent Application WO/2023/236901
Kind Code:
A1
Abstract:
Disclosed is a method for synthesizing a biodegradable block copolyester, comprising the following steps: (1) reacting aliphatic dibasic acid or dialkyl ester thereof with aliphatic diol in the presence of a catalyst, so as to prepare a prepolymer 1 serving as an aliphatic dibasic acid diol ester prepolymer; and (2) linking, by using a chain extender, the prepolymer 1 to a hydroxyl carboxylate polymer, so as to obtain the block copolyester. The present invention further relates to a block copolyester obtained by the method. The block copolyester prepared by the method in the present invention has good heat resistance and mechanical properties, especially bending resistance.
Inventors:
LONG YANBO (CN)
JING XIAOJING (CN)
JIANG SHAOHONG (CN)
HU XIANNIAN (CN)
JING XIAOJING (CN)
JIANG SHAOHONG (CN)
HU XIANNIAN (CN)
Application Number:
PCT/CN2023/098295
Publication Date:
December 14, 2023
Filing Date:
June 05, 2023
Export Citation:
Assignee:
HUIZHOU BOEKO MAT CO LTD (CN)
International Classes:
C08G18/42; C08G63/82; C08L67/02; C08L67/04
Foreign References:
| CN114835871A | 2022-08-02 | |||
| CN101367983A | 2009-02-18 | |||
| CN101649045A | 2010-02-17 | |||
| CN102516555A | 2012-06-27 | |||
| JP2004285151A | 2004-10-14 | |||
| US20120202928A1 | 2012-08-09 |
Attorney, Agent or Firm:
LIU , SHEN & ASSOCIATES (CN)
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