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.:
Date of Patent:
Jan. 24, 2017
Filed:
Dec. 03, 2015
Kyoritsu Chemical & Co., Ltd., Tokyo, JP;
The Nippon Synthetic Chemical Industry Co., Ltd., Osaka, JP;
Takahiro Minowa, Tokyo, JP;
Hiroyuki Tanaka, Chiba, JP;
Satoshi Yamazaki, Kanagawa, JP;
Mitsuo Shibutani, Osaka, JP;
KYORITSU CHEMICAL & CO., LTD., Tokyo, JP;
THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD., Osaka, JP;
Abstract
This is to provide an aqueous metal surface treatment agent for a lithium ion secondary battery which can improve interlaminar adhesiveness between a metal member and a resin coating layer such as a film or a coated film, and solvent resistance without using trivalent chromium. The aqueous metal surface treatment agent for a lithium ion secondary battery comprises a polyvinyl alcohol resin containing 2 to 15 mol % of a 1,2-diol structural unit represented by the formula (1): Having a degree of saponification of 90 to 99.9 mol % and an average degree of polymerization of 250 to 3000; and a metallic crosslinking agent.