Title:
MULTILAYER BARRIER FILM AND PACKAGING MATERIAL COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/195645
Kind Code:
A1
Abstract:
A multilayer barrier film according to an embodiment of the present invention comprises: a base layer containing an aliphatic polyester resin; and a barrier layer containing a polyolefin resin. The polyolefin resin contains a repeating unit derived from an aliphatic olefin. The base layer and the barrier layer in the multilayer barrier film are alternately laminated. The biodegradability of the multilayer barrier film is at least 90%. The moisture permeability of the multilayer barrier film is 100 g/(m2*day) or less. The multilayer barrier film has stable durability and can exhibit excellent biodegradation properties, moisture barrier properties, etc.
Inventors:
HAN KWEONHYUNG (KR)
LEE SEOKIN (KR)
LEE SEOKIN (KR)
Application Number:
PCT/KR2023/003362
Publication Date:
October 12, 2023
Filing Date:
March 13, 2023
Export Citation:
Assignee:
SK MICROWORKS CO LTD (KR)
International Classes:
B32B27/08; B32B7/02; B32B27/32; B32B27/36
Foreign References:
| US20110200796A1 | 2011-08-18 | |||
| JP2020037189A | 2020-03-12 | |||
| KR20100024981A | 2010-03-08 | |||
| KR102244864B1 | 2021-04-27 | |||
| KR20200099486A | 2020-08-24 |
Attorney, Agent or Firm:
CHUNG, Hwaseung (KR)
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