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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 10695215 B1

PDFFull Text
Date of Patent:
Jun. 30, 2020

Filed:

Jun. 23, 2016

Multilayer film for disposable body warmer outer bag, and disposable body warmer

Applicant:

Kobayashi Pharmaceutical Co., Ltd., Osaka-shi, Osaka, JP;

Inventors:

Hiroyuki Inoue, Tokyo, JP;

Takayuki Miyazaki, Tokyo, JP;

Tsuyoshi Igaue, Osaka, JP;

Yorikazu Kotani, Osaka, JP;

Assignee:

KOBAYASHI PHARMACEUTICAL CO., LTD., Osaka-Shi, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael C Miggins

Int. Cl.
CPC ...
A61F 7/03 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B65D 65/40 (2006.01); B65D 81/24 (2006.01); B32B 27/30 (2006.01); B32B 27/00 (2006.01); B32B 27/36 (2006.01); F24V 30/00 (2018.01); B65D 65/22 (2006.01); A61F 7/02 (2006.01);
U.S. Cl.
CPC ...
A61F 7/034 (2013.01); B32B 27/00 (2013.01); B32B 27/30 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B65D 65/22 (2013.01); B65D 65/40 (2013.01); B65D 81/24 (2013.01); F24V 30/00 (2018.05); A61F 2007/022 (2013.01); A61F 2007/0222 (2013.01); A61F 2007/0244 (2013.01); A61F 2007/0258 (2013.01); A61F 2007/038 (2013.01); B32B 27/302 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/365 (2013.01);
Abstract

Provided is a multilayer film for a disposable body warmer outer bag, and a disposable body warmer, which are excellent in gas barrier property that inhibits permeation of oxygen gas, water vapor and the like, which can allow swelling due to hydrogen gas generated during a storage period to be prevented, and which are excellent in seal strength, impact resistance and weather resistance. A disposable body warmer outer bag formed from a multilayer film comprising a first barrier layer () and a second barrier layer (), wherein the first barrier layer () and the second barrier layer () consist of a polyvinylidene chloride layer () or a polyvinylidene chloride layer () obtained by coating at least one surface (upper portion in FIG.) of a heat-resistant resin substrate () or a heat-resistant resin substrate () with polyvinylidene chloride.

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