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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 11117354 B1

PDFFull Text
Date of Patent:
Sep. 14, 2021

Filed:

Sep. 06, 2016

Multilayer film for deep draw forming and method for manufacturing same

Applicant:

Kureha Corporation, Tokyo, JP;

Inventors:

Ichiro Kitada, Tokyo, JP;

Shota Nambu, Tokyo, JP;

Assignee:

KUREHA CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Sheeba Ahmed

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/28 (2006.01); B32B 7/12 (2006.01); B32B 27/32 (2006.01); B32B 37/12 (2006.01); B65D 1/00 (2006.01); B65D 1/26 (2006.01); B65D 65/40 (2006.01); B29C 51/14 (2006.01); B29C 35/08 (2006.01); B29C 55/14 (2006.01); B29K 23/00 (2006.01); B29K 27/00 (2006.01); B29C 55/28 (2006.01); B29C 55/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B29C 35/0805 (2013.01); B29C 51/14 (2013.01); B29C 55/143 (2013.01); B32B 7/12 (2013.01); B32B 27/28 (2013.01); B32B 27/30 (2013.01); B32B 27/304 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B65D 1/00 (2013.01); B65D 1/26 (2013.01); B65D 65/40 (2013.01); B29C 55/005 (2013.01); B29C 55/28 (2013.01); B29C 2035/0838 (2013.01); B29K 2023/0616 (2013.01); B29K 2023/083 (2013.01); B29K 2027/08 (2013.01); B29K 2995/0053 (2013.01); B29K 2995/0067 (2013.01); B29L 2031/712 (2013.01); B32B 37/12 (2013.01); B32B 2250/04 (2013.01); B32B 2307/30 (2013.01); B32B 2307/518 (2013.01); B32B 2307/72 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/732 (2013.01); B32B 2307/738 (2013.01); B32B 2307/748 (2013.01); B32B 2309/105 (2013.01); B32B 2435/02 (2013.01); B32B 2439/70 (2013.01);
Abstract

To provide a multilayer film that enables easy opening of a packaging material manufactured by deep draw forming. A multilayer film for deep draw forming, including: a vinylidene chloride copolymer resin layer as a middle layer; a crosslinked olefin resin layer as a first surface layer; and an ethylene/vinyl acetate copolymer resin layer as a second surface layer; where the ethylene/vinyl acetate copolymer resin layer is further provided either at least between the vinylidene chloride copolymer resin layer as the middle layer and crosslinked olefin resin layer as the first surface layer, or between the vinylidene chloride copolymer resin layer as the middle layer and ethylene/vinyl acetate copolymer resin layer as the second surface layer.

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