WHITE TRIVALENT CHROMIUM PLATING BATH AND WHITE TRIVALENT CHROMIUM PLATING METHOD FOR OBJECT TO BE PLATED USING SAME

European Patent Office Patent

APP PUB NO EP-4379095-A1
SERIAL NO

22849467

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Abstract

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A white trivalent chromium plating bath including a trivalent chromium compound, a complexing agent, a sulfate serving as a conductive salt, a pH buffering agent, and one type or two or more types of sulfur-containing organic compounds represented by the following general formula (I) (in which R represents -H, -NH2, -OH, -CH3, -(CH2)n-CH3, or -(CH2)n-COOH, n represents an integer of 1 to 4, and X and Y each independently represent CH2, C=O, or C=S), and a white trivalent chromium plating method using the white trivalent chromium plating bath enable a high plating deposition rate in the trivalent chromium plating bath, and provide an appearance suitable for decorative applications.

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Patent Owner(s)

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JCU CORPJPTOKYO JAPAN

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Inventor(s)

Inventor Name Address
NAKAGAMI MADOKA 〒2150033 神奈川県川崎市麻生区栗木２－４－３ 株式会社ＪＣＵ内 KANAGAWA ?2150033
TSUJINO SHUN 〒2150033 神奈川県川崎市麻生区栗木２丁目４番３号 株式会社ＪＣＵ 総合研究所内 KANAGAWA ?2150033

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