Title:
LAMINATE MATERIAL WITH SUPERIOR BARRIER PERFORMANCE AND PREPARATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/077495
Kind Code:
A1
Abstract:
Provided are a laminate material, an article comprising the laminate material and a method for preparing the laminate material. The laminate material, comprises a first substrate comprising at least one metalized PE-based film, a second substrate comprising at least one PE-based film, and an adhesve layer adhering the first substrate to the second substrate, wherein the adhesive layer is derived from a two-component solvent-based polyurethane adhesive composition, and wherein the concentration of fatty acids or fatty acid derivatives in the metalized PE-based film is less than 300ppm, based on the total weight of the metalized PE-based film. The two-component solvent-based polyurethane adhesive composition comprises a polyester polyol component and a polyisocyanate component, wherein the polyol component has 40wt%-60wt% of aromatic rings in the backbone, based on the total weight of the polyester polyol and a Mw between 5,000 and 50,000, and wherein the weight ratio of the polyester polyol component to polyisocyanate component is from 100:5 to 100:30.
Inventors:
WANG GANG (CN)
BAI CHENYAN (CN)
DU ZHE (CN)
WANG FANJI (JP)
YUN XIAOBING (CN)
PAN JIANPING (CN)
XU JINGYI (CN)
ZHU JIANLIANG (CN)
QIU HUAN (CN)
BAI CHENYAN (CN)
DU ZHE (CN)
WANG FANJI (JP)
YUN XIAOBING (CN)
PAN JIANPING (CN)
XU JINGYI (CN)
ZHU JIANLIANG (CN)
QIU HUAN (CN)
Application Number:
PCT/CN2021/129192
Publication Date:
May 11, 2023
Filing Date:
November 08, 2021
Export Citation:
Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
WANG GANG (CN)
BAI CHENYAN (CN)
DU ZHE (CN)
WANG FANJI (JP)
YUN XIAOBING (CN)
PAN JIANPING (CN)
XU JINGYI (CN)
ZHU JIANLIANG (CN)
QIU HUAN (CN)
WANG GANG (CN)
BAI CHENYAN (CN)
DU ZHE (CN)
WANG FANJI (JP)
YUN XIAOBING (CN)
PAN JIANPING (CN)
XU JINGYI (CN)
ZHU JIANLIANG (CN)
QIU HUAN (CN)
International Classes:
B32B15/085; B32B7/12; B32B27/00; C09J175/06
Domestic Patent References:
| WO2021154162A1 | 2021-08-05 |
Foreign References:
| US20160144603A1 | 2016-05-26 | |||
| JP5942032B1 | 2016-06-29 | |||
| CN103525353A | 2014-01-22 | |||
| US20170313807A1 | 2017-11-02 | |||
| US20190292428A1 | 2019-09-26 | |||
| JPS6136314A | 1986-02-21 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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