Title:
LAMINATE WITH SUPERIOR BARRIER PERFORMANCE AND PREPARATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/077496
Kind Code:
A1
Abstract:
A laminate, an article comprising the laminate and a method for preparing the laminate are provided. The present disclosure relates to a laminate, comprising a first substrate comprising a metalized polyethylene-based (PE based) film; a second substrate comprising a polyethylene terephthalate-based film or a polypropylene-based film; and, an adhesive layer adhering the first substrate to the second substrate, wherein the adhesive layer is derived from a two-component solvent-based polyurethane adhesive composition; 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, wherein the two-component solvent-based polyurethane adhesive composition comprises a polyester polyol component and a polyisocyanate component, wherein the polyester polyol component has about 40wt%-60 wt %of aromatic rings in the backbone, based on the total weight of the polyester polyol and a molecular weight (Mw) between 5,000 and 50,000; and wherein the weight ratio of the polyester polyol component to the polyisocyanate component is from 100: 5 to 100: 30.
Inventors:
BAI CHENYAN (CN)
WANG GANG (CN)
DU ZHE (CN)
WANG FANJI (JP)
YUN XIAOBING (CN)
PAN JIANPING (CN)
XU JINGYI (CN)
WANG KAILI (CN)
ZHAO LIANJIANG (CN)
CHEN GAOBING (CN)
WANG GANG (CN)
DU ZHE (CN)
WANG FANJI (JP)
YUN XIAOBING (CN)
PAN JIANPING (CN)
XU JINGYI (CN)
WANG KAILI (CN)
ZHAO LIANJIANG (CN)
CHEN GAOBING (CN)
Application Number:
PCT/CN2021/129194
Publication Date:
May 11, 2023
Filing Date:
November 08, 2021
Export Citation:
Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
ROHM & HAAS (US)
BAI CHENYAN (CN)
WANG GANG (CN)
DU ZHE (CN)
WANG FANJI (JP)
YUN XIAOBING (CN)
PAN JIANPING (CN)
XU JINGYI (CN)
WANG KAILI (CN)
ZHAO LIANJIANG (CN)
CHEN GAOBING (CN)
ROHM & HAAS (US)
BAI CHENYAN (CN)
WANG GANG (CN)
DU ZHE (CN)
WANG FANJI (JP)
YUN XIAOBING (CN)
PAN JIANPING (CN)
XU JINGYI (CN)
WANG KAILI (CN)
ZHAO LIANJIANG (CN)
CHEN GAOBING (CN)
International Classes:
B32B27/12; B32B27/40; C08G18/10; C08G18/46; C09J175/04
Domestic Patent References:
| WO2021133475A1 | 2021-07-01 | |||
| WO2018140116A1 | 2018-08-02 | |||
| WO2015125160A1 | 2015-08-27 | |||
| WO2019190622A1 | 2019-10-03 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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