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WO2023111735 - ALL-PE RECYCLABLE LAMINATE WITH NANOCLAY COATING

National phase entry:
Publication Number WO/2023/111735
Publication Date 22.06.2023
International Application No. PCT/IB2022/061438
International Filing Date 25.11.2022
Title [English] ALL-PE RECYCLABLE LAMINATE WITH NANOCLAY COATING [French] STRATIFIÉ RECYCLABLE TOUT-PE COMPRENANT UN REVÊTEMENT DE NANOARGILE
Applicants ** NOVA CHEMICALS (INTERNATIONAL) S.A. Avenue de la Gare 14 1700 Fribourg, CH
Inventors ** CLARE, Robert 260234 Range Road 35 Cochrane, Alberta T4C 0B7, CA
Priority Data 63/288,848  13.12.2021  US
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Quotation for National Phase entry

Country Stages Total
China Filing 1197
EPO Filing, Examination 6276
Japan Filing 554
South Korea Filing 578
USA Filing, Examination 2635
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Total: 11240
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Abstract [English] Provided herein is a laminate comprising first and second film layers prepared primarily, if not entirely, using polyethylene resins. The first film possesses a low level of surface roughness and a continuous coating, comprising an aqueous dispersion of a clay mineral, that becomes contained at the interface between the first and second film layers following lamination. The laminate is suitable for use in packaging applications that require optimal oxygen barrier performance, and since the laminate is prepared primarily from polyethylene it is accompanied by the benefit of being amenable to recycling. [French] La présente invention concerne un stratifié comprenant des première et seconde couches de film préparées principalement, sinon exclusivement, de résines de polyéthylène. Le premier film présente un faible niveau de rugosité de surface et possède un revêtement continu, comprenant une dispersion aqueuse d'un minéral argileux, qui est contenu au niveau de l'interface entre les première et seconde couches de film après stratification. Le stratifié est approprié pour être utilisé dans des applications d'emballage qui requièrent des performances optimales en matière de barrière à l'oxygène, et, étant donné que le stratifié est préparé principalement de polyéthylène, il présente l'avantage de pouvoir être recyclé.