Title:
MULTILAYER BARRIER FILM AND PACKAGING MATERIAL INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2023/163328
Kind Code:
A1
Abstract:
A multilayer barrier film according to an embodiment described in the present specification comprises: a base layer including an aliphatic polyester resin; and a barrier layer including an ethylene-vinyl alcohol resin. The base layer and the barrier layer are alternately laminated. The multilayer barrier film has a biodegradability of at least 90%, and a water permeability of at most 200 g/(m2*day). The multilayer barrier film may exhibit excellent biodegradability and waterproofness, while the peeling resistance thereof may be effectively improved.
Inventors:
HAN KWEONHYUNG (KR)
LEE SEOKIN (KR)
LEE SEOKIN (KR)
Application Number:
PCT/KR2022/018501
Publication Date:
August 31, 2023
Filing Date:
November 22, 2022
Export Citation:
Assignee:
SK MICROWORKS CO LTD (KR)
International Classes:
B32B27/08; B32B27/32; B32B27/36; B32B37/15
Foreign References:
| JP2008155432A | 2008-07-10 | |||
| US20180304573A1 | 2018-10-25 | |||
| KR20200046620A | 2020-05-07 | |||
| JP2021024591A | 2021-02-22 | |||
| KR102158171B1 | 2020-09-23 |
Attorney, Agent or Firm:
CHUNG, Hwaseung (KR)
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