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Patent Searching and Data


Title:
BIODEGRADABLE POLYESTER THIN FILM AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/028513
Kind Code:
A1
Abstract:
Disclosed are a biodegradable polyester thin film and a preparation method therefor. The biodegradable polyester thin film comprises the following components: (a) 20-50 parts of polylactic acid; (b) 50-80 parts of polybutylene adipate/terephthalate, wherein the light transmittance of the biodegradable polyester thin film is 80-90 percent when the film thickness is 20-35 μm. As the polybutylene adipate/terephthalate and the polylactic acid are blended and modified, and the light transmittance of the polyester thin film is controlled to be within 80-90 percent, the problems of the film material of the polyester thin film lacking uniformity of longitudinal and transverse tearing strength and having poor transparency when the polyester thin film is used can be effectively improved. The thin film thus prepared has high film stiffness and uniformity of longitudinal and transverse tearing strength.

Inventors:
XIONG KAI (CN)
YUAN ZHIMIN (CN)
CAI TONGMIN (CN)
HUANG XIANBO (CN)
ZENG XIANGBIN (CN)
JIAO JIAN (CN)
YUAN RENXU (CN)
ZHONG YUKE (CN)
LU CHANGLI (CN)
YANG HUI (CN)
MAI KAIJIN (CN)
DONG XUETENG (CN)
Application Number:
PCT/CN2017/095942
Publication Date:
February 15, 2018
Filing Date:
August 04, 2017
Export Citation:
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Assignee:
KINGFA SCIENCE & TECHNOLOGY CO (CN)
ZHUHAI WANGO CHEM CO LTD (CN)
TIANJIN KINGFA NEW MAT CO LTD (CN)
SHANGHAI KINGFA SCI &TECH CO LTD (CN)
International Classes:
C08L67/02; C08J5/18; C08K3/26; C08K3/34; C08L67/04
Foreign References:
CN104559087A2015-04-29
CN104744898A2015-07-01
CN102702696A2012-10-03
CN105086395A2015-11-25
CN106280307A2017-01-04
Attorney, Agent or Firm:
GUANGZHOU WISON I.P. LAW FIRM (CN)
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