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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 9076999 B1

PDFFull Text
Date of Patent:
Jul. 07, 2015

Filed:

Apr. 23, 2013

Laminating water-based surface treatment agent, surface treatment method and surface treated material

Applicants:

Daisuke Hashimoto, Oyama, JP;

Takurou Watanabe, Oyama, JP;

Inventors:

Daisuke Hashimoto, Oyama, JP;

Takurou Watanabe, Oyama, JP;

Assignee:

Showa Denko Packaging Co., Ltd., Kanagawa, JP;

Attorney:

Keating & Bennett, LLP

Primary Examiner:

Cynthia H Kelly

Assistant Examiner:

Monique Wills

Int. Cl.
CPC ...
H01M 2/02 (2006.01); B32B 7/12 (2006.01); B32B 15/08 (2006.01); B32B 15/18 (2006.01); B32B 15/20 (2006.01); B32B 27/20 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01);
U.S. Cl.
CPC ...
H01M 2/0287 (2013.01); Y10T 428/31703 (2015.04); B32B 7/12 (2013.01); B32B 15/08 (2013.01); B32B 15/18 (2013.01); B32B 15/20 (2013.01); B32B 27/205 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 2250/44 (2013.01); B32B 2255/06 (2013.01); B32B 2255/26 (2013.01); B32B 2307/206 (2013.01); B32B 2307/306 (2013.01); B32B 2307/714 (2013.01); B32B 2307/7242 (2013.01); B32B 2457/00 (2013.01); B32B 2457/10 (2013.01); B32B 2553/00 (2013.01);
Abstract

A laminating water-based surface treatment agent according to the present invention includes a chitosan derivative, a carboxyl compound having at least one carboxyl group in a molecule, and water. The content mass ratio of the chitosan derivative/the carboxyl compound falls within a range of 1.0/0.5 to 1.0/3.0. The laminating water-based surface treatment agent of the present invention can form an undercoating excellent in HF-resistance, electrolyte resistance, and solvent resistance, and also can sufficiently secure laminating adherence for a long term under more extreme environments required for a packaging material for a battery case or a tab lead for, e.g., a lithium ion secondary battery for automobiles.

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