Title:
BIODEGRADABLE LAMINATED FILM AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/102902
Kind Code:
A1
Abstract:
An embodiment of the present invention relates to a biodegradable laminated film capable of improving all of biodegradability, durability, and barrier properties, and to a method for manufacturing the biodegradable laminated film. The laminated film comprises: a substrate layer formed from a biodegradable resin composition; and a barrier layer positioned on at least one side of the substrate layer and formed from a coating composition, wherein the barrier layer includes nanocellulose, and thus has improved barrier properties, such as oxygen permeability and moisture permeability, without a reduction in mechanical properties such as tensile strength and tear strength. Therefore, the biodegradable laminated film according to the embodiment can exhibit excellent properties when used in various fields in which barrier properties are important, such as packaging materials for refrigerated and frozen foods, packaging materials for electronic materials, and medical fluid bags.
Inventors:
KIM KYUNG YOUN (KR)
KIM HYUNG MO (KR)
KIM SEONG DONG (KR)
KIM HOON (KR)
KIM HYUNG MO (KR)
KIM SEONG DONG (KR)
KIM HOON (KR)
Application Number:
PCT/KR2021/008553
Publication Date:
May 19, 2022
Filing Date:
July 06, 2021
Export Citation:
Assignee:
ECOVANCE CO LTD (KR)
International Classes:
C08J7/048; B29C48/08; C08J5/18; C08L1/02; C08L67/02; C08L67/04
Domestic Patent References:
| WO2019229759A1 | 2019-12-05 |
Foreign References:
| JP2010167411A | 2010-08-05 | |||
| KR101255826B1 | 2013-04-17 | |||
| KR20190003036U | 2019-12-10 | |||
| KR20190092876A | 2019-08-08 | |||
| KR20120103158A | 2012-09-19 |
Attorney, Agent or Firm:
FIRSTLAW P.C. (KR)
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