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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 10576712 B1

PDFFull Text
Date of Patent:
Mar. 03, 2020

Filed:

Mar. 25, 2016

Resin-coated metal sheet for container

Applicant:

Jfe Steel Corporation, Tokyo, JP;

Inventors:

Yoichiro Yamanaka, Chiba, JP;

Junichi Kitagawa, Fukuyama, JP;

Hiroki Nakamaru, Chiba, JP;

Norihiko Nakamura, Chiba, JP;

Assignee:

JFE STEEL CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
B32B 15/09 (2006.01); B65D 25/14 (2006.01); B32B 27/18 (2006.01); B32B 27/36 (2006.01); B65D 1/16 (2006.01); C21D 9/46 (2006.01); C25D 3/10 (2006.01); B29C 48/00 (2019.01); B29C 48/21 (2019.01); B32B 27/08 (2006.01); B32B 7/02 (2019.01); C08L 91/06 (2006.01); B65D 1/12 (2006.01); B32B 7/023 (2019.01); B32B 15/20 (2006.01); C08L 67/03 (2006.01); B32B 15/08 (2006.01); B29K 67/00 (2006.01); B29C 55/12 (2006.01); B32B 15/18 (2006.01); B32B 37/20 (2006.01);
U.S. Cl.
CPC ...
B32B 15/09 (2013.01); B32B 15/18 (2013.01); B32B 27/18 (2013.01); B32B 27/36 (2013.01); B32B 37/203 (2013.01); B65D 1/165 (2013.01); B65D 25/14 (2013.01); C21D 9/46 (2013.01); C25D 3/10 (2013.01); B29C 48/0018 (2019.02); B29C 48/21 (2019.02); B29C 55/12 (2013.01); B29K 2067/00 (2013.01); B29K 2067/003 (2013.01); B29K 2067/006 (2013.01); B32B 7/02 (2013.01); B32B 7/023 (2019.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); B32B 27/08 (2013.01); B32B 2250/03 (2013.01); B32B 2250/04 (2013.01); B32B 2250/05 (2013.01); B32B 2270/00 (2013.01); B32B 2307/308 (2013.01); B32B 2307/40 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/54 (2013.01); B32B 2307/584 (2013.01); B32B 2307/702 (2013.01); B32B 2307/704 (2013.01); B32B 2307/714 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/746 (2013.01); B32B 2307/752 (2013.01); B32B 2311/24 (2013.01); B32B 2311/30 (2013.01); B32B 2367/00 (2013.01); B32B 2439/66 (2013.01); B32B 2439/70 (2013.01); B65D 1/12 (2013.01); B65D 1/16 (2013.01); C08L 67/03 (2013.01); C08L 91/06 (2013.01); Y10T 428/31681 (2015.04); Y10T 428/31786 (2015.04); Y10T 428/31801 (2015.04);
Abstract

A resin-coated metal sheet for containers that has excellent content releasability is provided. The resin-coated metal sheet includes a resin layer (A) and a resin layer (B). The resin layer (A) has a multilayer structure and is disposed on a side which, after the metal sheet is formed into a container, becomes the inner side of the container. The resin layer (B) is disposed on a side that becomes the outer side of the container. The resin layer (A) contains polyester as a main component and includes an uppermost resin layer (a1). A Raman band intensity ratio (I/I) on the surface of the resin layer (a1) is 0.6 to 0.9. The resin layer (B) includes polyester (I) composed mainly of polyethylene terephthalate and a polyester (II) composed mainly of polybutylene terephthalate. A Raman band intensity ratio on the surface of the resin layer (B) is 0.8 to 1.0.

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