Title:
COMPOSITE POLYESTER FILM, PREPARATION METHOD THEREFOR, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/050690
Kind Code:
A1
Abstract:
The present application relates to a composite polyester film. The composite polyester film comprises a first polyester layer, a second polyester layer, and a third polyester layer; the first polyester layer and the third polyester layer are respectively located on the surfaces of the two sides of the second polyester layer; the first polyester layer, the second polyester layer and the third polyester layer each independently comprise the following preparation raw materials in percentage by mass: 97.0-99.9% of a polyester material and 0.1-3.0% of an additive; the polyester materials in the first polyester layer and the third polyester layer both contain carboxyl end groups of 40-100 mol/t, and the polyester material in the second polyester layer contains carboxyl end groups of 5-30 mol/t.
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Inventors:
ZHU ZHONGYA (CN)
WANG SHUAI (CN)
XIA JIANZHONG (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
WANG SHUAI (CN)
XIA JIANZHONG (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
Application Number:
PCT/CN2022/117282
Publication Date:
March 14, 2024
Filing Date:
September 06, 2022
Export Citation:
Assignee:
YANGZHOU NANOPORE INNOVATIVE MATERIALS TECH LTD (CN)
International Classes:
B32B27/36; B29D7/01; B32B7/10; B32B27/06; B32B27/18; B32B33/00; B32B37/04; B32B38/00; B32B38/16; C08J5/18; C08K3/22; C08L67/02; H01M4/66
Foreign References:
| CN115320206A | 2022-11-11 | |||
| CN113524830A | 2021-10-22 | |||
| CN114989574A | 2022-09-02 | |||
| US5874163A | 1999-02-23 | |||
| CN103459150A | 2013-12-18 | |||
| CN107001666A | 2017-08-01 | |||
| CN113276527A | 2021-08-20 | |||
| JP2013026530A | 2013-02-04 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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