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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11370933 B1

PDFFull Text
Date of Patent:
Jun. 28, 2022

Filed:

Oct. 14, 2016

Polyester/primer/metal composite film that is cohesive and impermeable to gas, method for the production thereof and the primer utilized in said method

Applicant:

Toray Films Europe, Saint-Maurice-de-Beynost, FR;

Inventors:

Keltoum Ouzineb, Villeurbanne, FR;

Maria Cristina Penache, Chavanoz, FR;

Laurent Derveaux, Vertrieu, FR;

Assignee:

TORAY FILMS EUROPE, Saint-Maurice-de-Beynost, FR;

Attorney:

Oliff PLC

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
C09D 133/06 (2006.01); C09D 5/02 (2006.01); C08J 3/05 (2006.01); C08J 3/24 (2006.01); C08J 7/04 (2020.01); C09D 5/00 (2006.01); C08J 7/043 (2020.01); C08J 7/048 (2020.01); C08J 7/056 (2020.01); B32B 7/12 (2006.01); B32B 7/04 (2019.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01); B32B 37/16 (2006.01); B32B 27/26 (2006.01); B32B 15/08 (2006.01); C08K 5/00 (2006.01); C09J 5/00 (2006.01); C09J 133/10 (2006.01); C09J 5/06 (2006.01); C09J 167/00 (2006.01); C09J 179/02 (2006.01); C09J 167/02 (2006.01); C09J 133/06 (2006.01); C09J 133/08 (2006.01); C09J 133/04 (2006.01); C09J 179/04 (2006.01); C09J 179/00 (2006.01); C09J 133/02 (2006.01); C09J 161/26 (2006.01); C09J 161/28 (2006.01); C08L 67/00 (2006.01); C08L 61/26 (2006.01); C08L 33/04 (2006.01); C08L 33/06 (2006.01); C08L 79/02 (2006.01); C08L 79/04 (2006.01); C08L 61/28 (2006.01); C08L 79/00 (2006.01); C08L 33/08 (2006.01); C08L 33/02 (2006.01); C08L 33/10 (2006.01); C08L 67/02 (2006.01);
U.S. Cl.
CPC ...
C09D 133/06 (2013.01); C08J 3/05 (2013.01); C08J 3/24 (2013.01); C08J 7/042 (2013.01); C08J 7/043 (2020.01); C08J 7/048 (2020.01); C08J 7/056 (2020.01); C09D 5/002 (2013.01); C09D 5/024 (2013.01); B32B 7/04 (2013.01); B32B 7/12 (2013.01); B32B 15/08 (2013.01); B32B 27/08 (2013.01); B32B 27/26 (2013.01); B32B 27/36 (2013.01); B32B 37/16 (2013.01); B32B 2250/02 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2367/00 (2013.01); B32B 2419/00 (2013.01); B32B 2439/70 (2013.01); B32B 2439/80 (2013.01); C08J 2333/02 (2013.01); C08J 2333/04 (2013.01); C08J 2333/10 (2013.01); C08J 2361/26 (2013.01); C08J 2361/28 (2013.01); C08J 2361/30 (2013.01); C08J 2367/02 (2013.01); C08J 2379/00 (2013.01); C08J 2379/02 (2013.01); C08J 2379/04 (2013.01); C08J 2400/14 (2013.01); C08J 2433/06 (2013.01); C08J 2433/12 (2013.01); C08K 5/0025 (2013.01); C08L 33/02 (2013.01); C08L 33/04 (2013.01); C08L 33/06 (2013.01); C08L 33/08 (2013.01); C08L 33/10 (2013.01); C08L 61/26 (2013.01); C08L 61/28 (2013.01); C08L 67/00 (2013.01); C08L 67/02 (2013.01); C08L 79/00 (2013.01); C08L 79/02 (2013.01); C08L 79/04 (2013.01); C08L 2205/02 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); C08L 2205/035 (2013.01); C09D 5/00 (2013.01); C09J 5/00 (2013.01); C09J 5/06 (2013.01); C09J 133/02 (2013.01); C09J 133/04 (2013.01); C09J 133/06 (2013.01); C09J 133/08 (2013.01); C09J 133/10 (2013.01); C09J 161/26 (2013.01); C09J 161/28 (2013.01); C09J 167/00 (2013.01); C09J 167/02 (2013.01); C09J 179/00 (2013.01); C09J 179/02 (2013.01); C09J 179/04 (2013.01); C09J 2433/003 (2013.01); C09J 2461/003 (2013.01); C09J 2467/003 (2013.01); C09J 2467/006 (2013.01); Y10T 428/31786 (2015.04); Y10T 428/31794 (2015.04); Y10T 428/31797 (2015.04);
Abstract

The aim of the invention is to provide polyester/primer/metallic coating composite films having good adherence of the metallic coating in dry and humid conditions. Said films also form a good gas barrier: oxygen permeability less than or equal to 0.8 cc/m2/d; water vapour permeability less than or equal to 0.3 g/m2/d. To this end, the invention concerns a composite film comprising a polyester substrate, at least one coating adhering on at least one of the faces of the substrate and at least one layer of primer for cross-linked adhesion between the substrate and the coating. Said primer comprises at least one acrylic and/or methacrylic polymer P1, at least one acrylic and/or methacrylic polymer P2 different from P1, at least one cross-linking agent, and, preferably, at least one polyester that is soluble or dispersible in water: —P1 having a gel content TG1>70% by dry weight with respect to P1; —P2 having a gel content TG2≤TG1 and ≤20% by dry weight, with respect to P2; —P1 having a surface-grafted free weak acid content≥0.8 in meq/g of polymer; —[P2]≤60% by weight on dry by weight in respect to P1+P2. The method for producing said film, the adhering primer, and the articles obtained using said film, also form part of the present invention.

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