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Title:
BIODEGRADABLE POLYESTER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2019/105027
Kind Code:
A1
Abstract:
Disclosed in the present invention is a biodegradable polyester composition, comprising the following components: i) 52-70 parts of a biodegradable aliphatic-aromatic polyester; Ii) 4-9 parts of polylactic acid; Iii) 20-30 parts of starch; iv) 0-8 parts of an inorganic filler. The present invention may, by means of adding silica into a biodegradable polyester composition and controlling the content of silica in the composition to be within the range of 0.1%-0.5%, greatly alleviate the phenomenon wherein a biodegradable polyester composition is not properly wound during a film blowing process, not causing the phenomenon of film slipping and not causing the phenomenon of film sticking, thus the film exhibits an excellent winding property. The produced film also has excellent food contact properties.

Inventors:
OUYANG CHUNPING (CN)
YUAN ZHIMIN (CN)
CAI TONGMIN (CN)
HUANG XIANBO (CN)
ZENG XIANGBIN (CN)
JIAO JIAN (CN)
XIONG KAI (CN)
YANG HUI (CN)
MAI KAIJIN (CN)
DONG XUETENG (CN)
LU CHANGLI (CN)
Application Number:
PCT/CN2018/092802
Publication Date:
June 06, 2019
Filing Date:
June 26, 2018
Export Citation:
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Assignee:
KINGFA SCIENCE & TECHNOLOGY CO (CN)
ZHUHAI WANGO CHEM CO LTD (CN)
International Classes:
C08L67/02; C08K3/26; C08K3/34; C08K3/36; C08K5/20; C08K13/02; C08L3/02; C08L67/04
Foreign References:
CN108003571A2018-05-08
CN107189367A2017-09-22
CN102257068A2011-11-23
CN105001603A2015-10-28
US20100317772A12010-12-16
AU2010200315A12011-08-11
CN1064873A1992-09-30
Attorney, Agent or Firm:
GUANGZHOU WISON I.P. LAW FIRM (CN)
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