Title:
LIGHT-TRANSMITTING BARRIER COMPOSITE FILM AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/027451
Kind Code:
A1
Abstract:
The present invention is applied to the field of barrier films for water vapor barrier, and provides a light-transmitting barrier composite film having a good barrier effect and a simple process and a preparation method therefor in relation to the defects in the prior art that the water vapor barrier effect is unsatisfactory and the process is complicated. The barrier composite film sequentially comprises: a first high molecular polymer layer subjected to inorganic treatment and having a thickness of 25-150 μm, a first adhesive layer having a thickness of 5-50 μm, a second high molecular polymer layer subjected to inorganic treatment and having a thickness of 25-150 μm, and a second adhesive layer having a thickness of 10-250 μm, which are all light-transmitting. Compared with the prior art, according to the light-transmitting barrier composite film and the preparation method therefor provided in the present invention, the process is simple, and the barrier film has good barrier performance, a water vapor permeability of less than 10-4 g/m2/day, and good peeling strength and filling performance.
Inventors:
CHEN JIANPING (CN)
XU HAIBIN (CN)
XU HAIBIN (CN)
Application Number:
PCT/CN2020/101083
Publication Date:
February 18, 2021
Filing Date:
July 09, 2020
Export Citation:
Assignee:
GUANGDONG DONGYI HIGH TECH MATERIAL SCIENCE & TECH CO LTD (CN)
International Classes:
C08J7/04; C09J7/29; C08J7/06; C08L67/02
Foreign References:
| CN110776837A | 2020-02-11 | |||
| CN103666303A | 2014-03-26 | |||
| CN104797670A | 2015-07-22 | |||
| CN103154172A | 2013-06-12 | |||
| CN103347971A | 2013-10-09 | |||
| CN102945877A | 2013-02-27 | |||
| KR20190014419A | 2019-02-12 | |||
| JP2011230452A | 2011-11-17 |
Attorney, Agent or Firm:
SHENZHEN ZHONGDING INTELLECTUAL PROPERTY AGENCY (CN)
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