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Title:
METHOD OF TREATING SURFACE OF METAL BASE, METALLIC MATERIAL TREATED BY THE SURFACE TREATMENT METHOD, AND METHOD OF COATING THE METALLIC MATERIAL
Document Type and Number:
WIPO Patent Application WO/2008/029925
Kind Code:
A1
Abstract:
A method of treating the surface of a metal base which is conducted prior to cationic electrodeposition coating in order to improve throwing power in the cationic electrodeposition coating; a metallic material treated by the surface treatment method; and a method of coating this metallic material. The method of treating the metal surface of a metal base, which improves throwing power in cationic electrodeposition coating, comprises: a surface treatment step in which a metal surface treatment composition comprising zirconium ions and/or titanium ions and an adhesion promoter characterized by being at least one member selected from the group consisting of (A) silicon compounds, (B) adhesion-promoting metal ions, and (C) adhesion-promoting resins is brought into contact with a metal base to form a chemical conversion coating on the base; and a heat-drying step in which the metal base having the chemical conversion coating formed is heated at 60-190° for 30 seconds or longer to dry the coating.

Inventors:
INBE, Toshio (4-1-15, Minamishinagawa, Shinagawa-k, Tokyo 75, 1408675, JP)
印部 俊雄 (〒75 東京都品川区南品川4丁目1番15号 日本ペイント株式会社内 Tokyo, 1408675, JP)
MAKINO, Kazuhiro (4-1-15, Minamishinagawa, Shinagawa-k, Tokyo 75, 1408675, JP)
牧野 一宏 (〒75 東京都品川区南品川4丁目1番15号 日本ペイント株式会社内 Tokyo, 1408675, JP)
Application Number:
JP2007/067537
Publication Date:
March 13, 2008
Filing Date:
September 07, 2007
Export Citation:
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Assignee:
NIPPON PAINT CO., LTD. (2-1-2, OyodokitaKita-ku, Osaka-shi, Osaka 11, 5318511, JP)
日本ペイント株式会社 (〒11 大阪府大阪市北区大淀北2丁目1番2号 Osaka, 5318511, JP)
INBE, Toshio (4-1-15, Minamishinagawa, Shinagawa-k, Tokyo 75, 1408675, JP)
印部 俊雄 (〒75 東京都品川区南品川4丁目1番15号 日本ペイント株式会社内 Tokyo, 1408675, JP)
MAKINO, Kazuhiro (4-1-15, Minamishinagawa, Shinagawa-k, Tokyo 75, 1408675, JP)
International Classes:
C23C22/82; B05D3/10; C23C22/48; C23C28/00; C25D9/08; C25D13/20
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki (Takase Bldg, 25-8Higashi-ikebukuro 1-chome,Toshima-ku, Tokyo 13, 1700013, JP)
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