Title:
POLYBUTYROLACTAM-BASED DEGRADABLE MULTI-LAYER COMPOSITE FILM, PREPARATION METHOD, AND USE
Document Type and Number:
WIPO Patent Application WO/2024/021039
Kind Code:
A1
Abstract:
A polybutyrolactam-based degradable multi-layer composite film, consisting of an oxygen barrier layer, a bonding layer and a moisture barrier layer. The oxygen barrier layer is formed of polybutyrolactam, the bonding layer is formed of polyvinyl alcohol, and the moisture barrier layer is formed of a polyester hydrophobic biodegradable polymer. The multi-layer composite film shows excellent barrier properties, mechanical strength and toughness, and is widely applied in the field of biodegradable food packages.
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Inventors:
ZHAO LIMING (CN)
ZHANG DI (CN)
ZHANG DI (CN)
Application Number:
PCT/CN2022/109034
Publication Date:
February 01, 2024
Filing Date:
July 29, 2022
Export Citation:
Assignee:
UNIV EAST CHINA SCIENCE & TECH (CN)
International Classes:
B32B27/34; B29C41/32; B32B7/12; B32B27/08; B32B27/30; B32B27/36; B65D65/40
Foreign References:
| CN109955555A | 2019-07-02 | |||
| CN112111148A | 2020-12-22 | |||
| US20210206150A1 | 2021-07-08 | |||
| CN113150536A | 2021-07-23 | |||
| CN110588120A | 2019-12-20 | |||
| JP2007076036A | 2007-03-29 | |||
| US20170369708A1 | 2017-12-28 |
Attorney, Agent or Firm:
SHANGHAI KESHENG INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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