Method of chemical treatment and chemically treated member

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20090078340A1
SERIAL NO

11919454

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A chemical treatment method in which an object to be treated is treated with a chemical treating agent to form a chemical conversion coating, in which the object to be treated has at least one aluminum-plated steel sheet and at least one member selected from the group consisting of cold-rolled steel sheets, zinc-plated steel sheets, and aluminum sheets and the chemical treating agent is one which has zirconium, fluorine, and an aminated silane coupling agent and in which the zirconium content is 100-700 ppm in terms of metal amount and the fluorine/zirconium ratio is 3.5-7.0 by mole. A sufficient coating amount can be ensured on the surface of a zinc deposit, cold-rolled steel sheet, zinc-plated steel sheet, aluminum-plated steel sheet, or the like and a chemical conversion coating having sufficient base-hiding properties and sufficient adhesion can be formed.

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Patent Owner(s)

Patent OwnerAddress
NIPPON PAINT CO LTDAICHI PREFECTURE JAPAN AICHI
HONDA MOTOR CO LTDTOKYO JAPAN TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ando, Katsutoshi Saitama, JP 52 822
Futsuhara, Masanobu Tokyo, JP 14 83
Makino, Kazuhiro Tokyo , JP 61 445
Murai, Yasuhito Saitama, JP 3 10
Nishida, Shinya Tokyo, JP 16 73
Shimakura, Toshiaki Tokyo, JP 34 677

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