POLYURETHANE COATED POLYOLEFIN FILM AND METHOD FOR MAKING IT

Provided herein is a laminate, comprising a polyolefin-based substrate film having a first inner surface and a first outer surface, and a polyurethane-based top coating having a second inner surface and a second outer surface, wherein the first inner surface is in contact with the second inner surfa...

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Bibliographic Details
Main Authors BAI, Chenyan, CHEN, Gaobing, CASARRUBIAS, Juan Carlos, WU, Jie, PAN, Jianping
Format Patent
LanguageEnglish
French
Published 15.12.2022
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING-UP
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Summary:Provided herein is a laminate, comprising a polyolefin-based substrate film having a first inner surface and a first outer surface, and a polyurethane-based top coating having a second inner surface and a second outer surface, wherein the first inner surface is in contact with the second inner surface, wherein the polyurethane-based top coating is formed by mixing an isocyanate-terminated component and a hydroxyl-terminated component and coating the mixture onto the first inner surface of the polyolefin-based substrate film. Also provided are methods of preparing the laminate, articles comprising the laminate and use of the laminate in the packaging of a product. L'invention concerne un stratifié, comprenant un film de substrat à base de polyoléfine ayant une première surface interne et une première surface externe, et un revêtement supérieur à base de polyuréthane ayant une deuxième surface interne et une deuxième surface externe, la première surface interne étant en contact avec la deuxième surface interne, le revêtement supérieur à base de polyuréthane étant formé en mélangeant un composant à terminaison isocyanate avec un composant à terminaison hydroxyle et par revêtement du mélange sur la première surface interne du film de substrat à base de polyoléfine. L'invention concerne également des procédés de préparation du stratifié, des articles comprenant le stratifié et l'utilisation du stratifié dans l'emballage d'un produit.
Bibliography:Application Number: WO2021CN98559