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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 11325362 B1

PDFFull Text
Date of Patent:
May. 10, 2022

Filed:

Dec. 26, 2016

Layered polyester film

Applicants:

Toyobo Co., Ltd., Osaka, JP;

Furanix Technologies B.v., Amsterdam, NL;

Inventors:

Jun Inagaki, Otsu, JP;

Kaoru Sawada, Otsu, JP;

Yukihiro Numata, Otsu, JP;

Jesper Gabriel Van Berkel, Amsterdam, NL;

Assignees:

TOYOBO CO., LTD., Osaka, JP;

Furanix Technologies B.V., Amsterdam, NL;

Attorney:

Leydig, Voit & Mayer, Ltd.

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
B32B 27/36 (2006.01); B32B 27/30 (2006.01); B32B 27/40 (2006.01); C08G 63/672 (2006.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08J 7/048 (2020.01); C08J 7/056 (2020.01); C08J 7/06 (2006.01); C08J 7/04 (2020.01); C08L 67/02 (2006.01); C08G 63/16 (2006.01); C08G 63/127 (2006.01); C08G 63/18 (2006.01); C08G 63/12 (2006.01); C08G 63/123 (2006.01);
U.S. Cl.
CPC ...
B32B 27/36 (2013.01); B32B 27/308 (2013.01); B32B 27/40 (2013.01); C08G 63/672 (2013.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08J 7/048 (2020.01); C08J 7/056 (2020.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2264/10 (2013.01); B32B 2307/518 (2013.01); B32B 2307/724 (2013.01); B32B 2307/7242 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/732 (2013.01); B32B 2307/734 (2013.01); B32B 2307/736 (2013.01); B32B 2307/744 (2013.01); B32B 2307/746 (2013.01); B32B 2367/00 (2013.01); C08G 63/12 (2013.01); C08G 63/123 (2013.01); C08G 63/127 (2013.01); C08G 63/16 (2013.01); C08G 63/18 (2013.01); C08G 2230/00 (2013.01); C08J 7/04 (2013.01); C08J 7/0427 (2020.01); C08J 7/06 (2013.01); C08L 67/02 (2013.01); C08L 2203/16 (2013.01); Y10T 428/31565 (2015.04); Y10T 428/31786 (2015.04); Y10T 428/31797 (2015.04);
Abstract

To provide a layered polyester film having excellent mechanical properties, transparency, heat resistance, and gas barrier property. A layered polyester film including a polyester film and a thin film layer, wherein the polyester film is a biaxially oriented polyester film including a dicarboxylic acid component containing mainly a furandicarboxylic acid and a glycol component containing mainly ethylene glycol, the covering layer is formed on at least one surface of the polyester film, and the layered polyester film has a plane orientation coefficient ΔP of not less than 0.100 and not more than 0.200, and a thickness of the layered polyester film is not thinner than 1 μm and not thicker than 300 μm.

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