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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 10399303 B1

PDFFull Text
Date of Patent:
Sep. 03, 2019

Filed:

Dec. 08, 2015

Resin-coated metal sheet for can lids

Applicant:

Jfe Steel Corporation, Tokyo, JP;

Inventors:

Norihiko Nakamura, Tokyo, JP;

Yoichiro Yamanaka, Tokyo, JP;

Junichi Kitagawa, Tokyo, JP;

Hiroki Nakamura, Tokyo, JP;

Hiroshi Kubo, Tokyo, JP;

Yusuke Nakagawa, Tokyo, JP;

Assignee:

JFE STEEL CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
B32B 15/09 (2006.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01); B65D 1/16 (2006.01); B32B 27/20 (2006.01); B65D 17/00 (2006.01); B65D 65/42 (2006.01); B32B 15/08 (2006.01); C08L 67/03 (2006.01); C08L 67/02 (2006.01); C08L 67/00 (2006.01); B65D 25/34 (2006.01); B65D 1/12 (2006.01); B65D 25/14 (2006.01); B65D 43/02 (2006.01); B32B 15/18 (2006.01); B32B 15/20 (2006.01);
U.S. Cl.
CPC ...
B32B 15/09 (2013.01); B32B 15/18 (2013.01); B32B 15/20 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/36 (2013.01); B65D 1/165 (2013.01); B65D 17/08 (2013.01); B65D 65/42 (2013.01); B32B 15/08 (2013.01); B32B 2250/03 (2013.01); B32B 2250/244 (2013.01); B32B 2255/06 (2013.01); B32B 2255/205 (2013.01); B32B 2270/00 (2013.01); B32B 2307/00 (2013.01); B32B 2307/30 (2013.01); B32B 2307/308 (2013.01); B32B 2307/31 (2013.01); B32B 2307/704 (2013.01); B32B 2367/00 (2013.01); B32B 2435/00 (2013.01); B32B 2435/02 (2013.01); B32B 2439/66 (2013.01); B65D 1/12 (2013.01); B65D 1/16 (2013.01); B65D 17/00 (2013.01); B65D 17/02 (2013.01); B65D 25/14 (2013.01); B65D 25/34 (2013.01); B65D 43/02 (2013.01); C08L 67/00 (2013.01); C08L 67/02 (2013.01); C08L 67/03 (2013.01); C08L 2205/02 (2013.01); C08L 2205/025 (2013.01); Y10T 428/31681 (2015.04); Y10T 428/31786 (2015.04);
Abstract

A resin-coated metal sheet for can lids includes a metal sheet coated with thermoplastic resin films on both surfaces and formed into a can lid. A thermoplastic resin film A based on polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) is heat-fused on a surface of the metal sheet serving as an exterior surface of the can lid, and a thermoplastic resin film B based on polyethylene terephthalate (PET) is heat-fused on a surface of the metal sheet serving as an interior surface of the can lid. A composition ratio (wt %) of PBT/PET in the thermoplastic resin film A on the exterior surface is (PBT/PET)=(40/60) to (80/20), and the thermoplastic resin film B on the interior surface includes 95 mol % or more of PET.

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