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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 9744748 B1

PDFFull Text
Date of Patent:
Aug. 29, 2017

Filed:

Mar. 30, 2011

Multilayered structure and laminate, and method for production of the same

Applicants:

Shinji Tai, Pasadena, TX (US);

Hiroshi Kawai, Okayama, JP;

Satoshi Yamakoshi, Okayama, JP;

Kouta Isoyama, Okayama, JP;

Masao Hikasa, Okayama, JP;

Inventors:

Shinji Tai, Pasadena, TX (US);

Hiroshi Kawai, Okayama, JP;

Satoshi Yamakoshi, Okayama, JP;

Kouta Isoyama, Okayama, JP;

Masao Hikasa, Okayama, JP;

Assignee:

KURARAY CO., LTD., Kurashiki-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Aaron Austin

Assistant Examiner:

Lawrence Ferguson

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B29C 47/06 (2006.01); B32B 7/02 (2006.01); B32B 27/28 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); B29C 47/00 (2006.01); B29C 51/02 (2006.01); B29K 29/00 (2006.01); B29L 7/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B29C 47/065 (2013.01); B32B 7/02 (2013.01); B32B 27/28 (2013.01); B32B 27/302 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); B29C 47/0004 (2013.01); B29C 47/0021 (2013.01); B29C 51/02 (2013.01); B29K 2029/00 (2013.01); B29K 2995/0069 (2013.01); B29L 2007/008 (2013.01); B32B 2250/04 (2013.01); B32B 2250/05 (2013.01); B32B 2250/24 (2013.01); B32B 2250/42 (2013.01); B32B 2270/00 (2013.01); B32B 2307/7242 (2013.01); B32B 2307/74 (2013.01); B32B 2439/70 (2013.01); Y10T 428/24975 (2015.01); Y10T 428/3192 (2015.04);
Abstract

An object of the invention is to provide a multilayered structure having very superior gas barrier properties and being excellent in flex resistance, pinhole resistance, stretchability, thermoformability and interlayer adhesiveness, and having superior durability enabling characteristics such as high gas barrier properties to be maintained even if used with deformation such as flexion and/or stretching, and to provide a laminate in which the multilayered structure is used, and a production method thereof. Provided by the present invention is a multilayered structure in which at least 4 resin-layers constituted with a resin composition containing an ethylene-vinyl alcohol copolymer are contiguously laminated. A single layer of the resin layer has an average thickness of preferably no less than 0.01 μm and no greater than 10 μm. The average thickness is preferably no less than 0.1 μm and no greater than 1,000 μm. When the content of ethylene units of the ethylene-vinyl alcohol copolymer is no less than 3 mol % and no greater than 70 mol %, the saponification degree is preferably no less than 80 mol %.

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