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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 11766695 B1

PDFFull Text
Date of Patent:
Sep. 26, 2023

Filed:

Jul. 07, 2020

Gas barrier laminate and packaging material including the same

Applicant:

Toppan Printing Co., Ltd., Tokyo, JP;

Inventors:

Kengo Okamura, Tokyo, JP;

Miki Fukugami, Tokyo, JP;

Assignee:

TOPPAN PRINTING CO., LTD., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

John Vincent Lawler

Int. Cl.
CPC ...
B05D 1/02 (2006.01); C23C 16/40 (2006.01); C23C 16/02 (2006.01); C23C 28/00 (2006.01); B05D 7/00 (2006.01); B05D 7/02 (2006.01); C08J 7/04 (2020.01); C08J 7/043 (2020.01); C08J 7/048 (2020.01); C23C 14/08 (2006.01);
U.S. Cl.
CPC ...
B05D 1/02 (2013.01); B05D 7/02 (2013.01); B05D 7/52 (2013.01); C08J 7/043 (2020.01); C08J 7/048 (2020.01); C08J 7/0423 (2020.01); C23C 14/081 (2013.01); C23C 16/0272 (2013.01); C23C 16/403 (2013.01); C23C 28/00 (2013.01); B05D 2201/04 (2013.01); B05D 2502/00 (2013.01); B05D 2503/00 (2013.01); B05D 2518/12 (2013.01); C08J 2433/02 (2013.01); C08J 2475/08 (2013.01);
Abstract

A gas barrier laminate including a resin substrate, a first coating layer containing a carboxylic acid polymer; and a second coating layer containing a polyvalent metal compound and a resin, laminated in this order; a ratio of a thickness of the second coating layer to the first coating layer in the range of 1.0 or more and 4.0 or less; and the second coating layer satisfies at least one of the following: (condition 1) a haze of the second coating layer is 8% or less; (condition 2) a surface roughness Ra of the second coating layer is ½ or less of the thickness of the second coating layer; and (condition 3) the number of concave portions having a diameter of 1.5 μm or more per unit area on a surface of the second coating layer opposite to the first coating layer is 2/0.01 mmor less.

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