US Patent 7510612 Chemical conversion coating agent and surface-treated metal

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Patent Inventor Names

Kazuhiro Makino0

Masahiko Matsukawa0

Toshiaki Shimakura0

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Patent abstract

The present invention disclosure provides a chemical conversion coating agent which places a less burden on the environment and can apply good chemical conversion treatment to all metals such as iron, zinc and aluminum, and a surface-treated metal obtained using the same. The chemical conversion coating agent comprising: at least one kind selected from the group consisting of zirconium, titanium and hafnium; fluorine; and a water-soluble resin, wherein said water-soluble resin has, in at least a part thereof, a constituent unit expressed by the chemical formula (1):

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https://pdfpiw.uspto.gov/.piw?Docid=075106120

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