logo

For the Inventor, By the Inventor

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 10952893 B1

PDFFull Text
Date of Patent:
Mar. 23, 2021

Filed:

Jul. 30, 2015

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

Applicants:

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

Kanaoka Co., Ltd., Tokyo, JP;

Inventors:

Hiroyuki Inoue, Tokyo, JP;

Takayuki Miyazaki, Tokyo, JP;

Tsuyoshi Igaue, Osaka, JP;

Yorikazu Kotani, Osaka, JP;

Assignee:

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

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Joseph A Stoklosa

Assistant Examiner:

Adam J Avigan

Int. Cl.
CPC ...
A61F 7/03 (2006.01); B65D 65/40 (2006.01); B32B 27/30 (2006.01); B32B 3/26 (2006.01); B32B 9/00 (2006.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01); B32B 23/08 (2006.01); B32B 27/40 (2006.01); B32B 27/32 (2006.01); B65D 81/24 (2006.01); B32B 27/12 (2006.01); B32B 5/02 (2006.01); B32B 27/28 (2006.01); B32B 27/34 (2006.01); C08J 7/04 (2020.01); B32B 7/12 (2006.01); B32B 37/12 (2006.01); A61F 7/02 (2006.01);
U.S. Cl.
CPC ...
A61F 7/03 (2013.01); B32B 3/266 (2013.01); B32B 5/022 (2013.01); B32B 5/024 (2013.01); B32B 7/12 (2013.01); B32B 9/00 (2013.01); B32B 23/08 (2013.01); B32B 27/08 (2013.01); B32B 27/12 (2013.01); B32B 27/28 (2013.01); B32B 27/30 (2013.01); B32B 27/302 (2013.01); B32B 27/304 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/325 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B32B 27/40 (2013.01); B32B 37/12 (2013.01); B65D 65/40 (2013.01); B65D 81/24 (2013.01); C08J 7/0423 (2020.01); A61F 2007/0222 (2013.01); A61F 2007/0258 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2250/246 (2013.01); B32B 2255/10 (2013.01); B32B 2255/20 (2013.01); B32B 2255/205 (2013.01); B32B 2255/26 (2013.01); B32B 2307/306 (2013.01); B32B 2307/31 (2013.01); B32B 2307/518 (2013.01); B32B 2307/724 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/7246 (2013.01); B32B 2307/732 (2013.01); B32B 2439/06 (2013.01); B32B 2439/46 (2013.01); B32B 2571/00 (2013.01); C08J 2427/08 (2013.01);
Abstract

To provide a multilayer film for a disposable body warmer outer bag, and a disposable body warmer that are excellent in gas barrier property which inhibits permeation of oxygen gas, water vapor and the like, and that can allow swelling due to hydrogen gas generated during a storage period to be prevented. In a disposable body warmer outer bag formed from a multilayer film including a sealant layerand a barrier layer, the sealant layerand the barrier layerserve as an inner surface and an outer surface of the outer bag, respectively. The sealant layerincludes a vapor-deposited layermade by vapor-depositing a metal or metal oxide on at least one surface (upper portion in FIG.) of a thermal fusible resin substrate. The barrier layerincludes a polyvinylidene chloride layermade by coating at least one surface (lower portion in FIG.) of a heat-resistant resin substratewith polyvinylidene chloride.

Find Patent Forward Citations

Loading…