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:
Mar. 25, 1997
Filed:
Mar. 05, 1996
Masahiko Matsukawa, Kawasaki, JP;
Hidekimi Hirasawa, Yokohama, JP;
Fujio Mikami, Yokohama, JP;
Katsuyoshi Yamasoe, Yotsukaido, JP;
Nippon Paint Co., Ltd., Osaka, JP;
Abstract
A hydrophilic surface-treating aqueous solution and a hydrophilic surface-treating method are provided to form a film which can maintain its hydrophilicity. The hydrophilic surface-treating aqueous solution contains as main components polyglutamic acid, basic compound, and aqueous resin if necessary. This surface-treating solution and method enable the forming of a film on the surface of aluminum series metals which are used for aluminum fins of heat exchangers, and confer the film's anticorrosion properties, superior hydrophilicity and high hydrophilic permanency, while remarkably suppressing an offensive odor.