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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 11958272 B1

PDFFull Text
Date of Patent:
Apr. 16, 2024

Filed:

Jun. 24, 2020

Heat-shrinkable multilayer film and heat-shrinkable label

Applicant:

Gunze Limited, Ayabe, JP;

Inventors:

Naoki Ohno, Shiga, JP;

Yusuke Onishi, Shiga, JP;

Assignee:

GUNZE LIMITED, Kyoto, JP;

Attorney:

Hamre, Schumann, Mueller & Larson, P.C.

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 7/04 (2019.01); B32B 7/12 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); B65D 65/40 (2006.01); C08L 25/08 (2006.01); C08L 25/10 (2006.01); C08L 67/02 (2006.01); C08L 67/03 (2006.01); C09J 125/08 (2006.01); C09J 167/02 (2006.01); C09J 167/03 (2006.01); G09F 3/00 (2006.01); G09F 3/02 (2006.01); G09F 3/04 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 7/12 (2013.01); B32B 27/302 (2013.01); B32B 27/36 (2013.01); G09F 3/0291 (2013.01); B32B 7/04 (2013.01); B32B 2250/05 (2013.01); B32B 2250/24 (2013.01); B32B 2250/40 (2013.01); B32B 2270/00 (2013.01); B32B 2274/00 (2013.01); B32B 2307/30 (2013.01); B32B 2307/414 (2013.01); B32B 2307/736 (2013.01); B32B 2325/00 (2013.01); B32B 2367/00 (2013.01); B32B 2519/00 (2013.01); B65D 65/40 (2013.01); C08L 25/08 (2013.01); C08L 25/10 (2013.01); C08L 67/02 (2013.01); C08L 67/025 (2013.01); C08L 67/03 (2013.01); C08L 2203/16 (2013.01); C09J 125/08 (2013.01); C09J 167/02 (2013.01); C09J 167/03 (2013.01); C09J 2425/006 (2013.01); C09J 2467/006 (2013.01); G09F 2003/023 (2013.01); G09F 2003/0257 (2013.01); G09F 2003/0273 (2013.01); G09F 3/04 (2013.01); Y10T 428/1328 (2015.01); Y10T 428/31786 (2015.04); Y10T 428/31797 (2015.04); Y10T 428/31909 (2015.04); Y10T 428/31913 (2015.04); Y10T 428/31917 (2015.04); Y10T 428/31924 (2015.04); Y10T 428/31931 (2015.04); Y10T 428/31938 (2015.04);
Abstract

The present invention provides a heat shrinkable multilayer film that makes it possible to produce a heat shrinkable label having high seal strength regardless of interlaminar strength, and that also has excellent transparency. The present invention also provides a heat shrinkable label including the heat shrinkable multilayer film. Provided is a heat shrinkable multilayer film including: front and back layers each containing a polyester resin; an interlayer containing a polystyrene resin; and adhesive layers, wherein the front and back layers and the interlayer are stacked with the adhesive layers interposed therebetween, and the adhesive layers each contain a polyester resin having a glass transition temperature of 77° C. or lower.

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