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. 17, 2009
Filed:
Aug. 04, 2005
Toshio Inbe, Tokyo, JP;
Norizumi Matsui, Tokyo, JP;
Kengo Kobayashi, Aichi, JP;
Osamu Kasebe, Aichi, JP;
Toshio Inbe, Tokyo, JP;
Norizumi Matsui, Tokyo, JP;
Kengo Kobayashi, Aichi, JP;
Osamu Kasebe, Aichi, JP;
Nippon Paint Co., Ltd., Osaka, JP;
Denso Corporation, Aichi, JP;
Abstract
There is disclosed a rust prevention and hydrophilization treatment method for a flux-brazed aluminum-made heat exchanger which comprises subjecting the same to a rust prevention treatment by the use of a zirconium base compound and/or a titanium base compound, and thereafter subjecting the same to a hydrophilization treatment by means of a hydrophilization treatment agent composition containing the under-mentioned components: The above simplified method dispenses with a flux removal step without causing wastewater treatment problems, and thus assures favorable rust prevention and deodorization effects.