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US4770946A
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Surface-treated magnesium or magnesium alloy, and surface treatment process therefor
Assignee: NTT Inc
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Filing: 1985-10-14
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Granted: 1988-09-13
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Expires: 2005-10-14
Abstract
Abstract PCT No. PCT/JP85/00571 Sec. 371 Date Apr. 30, 1986 Sec. 102(e) Date Apr. 30, 1986 PCT Filed Oct. 14, 1985 PCT Pub. No. WO86/02388 PCT Pub. Date Apr. 24, 1986.An oxidized film is formed on the surface of Mg or an Mg alloy, and a thermosetting resin film is formed on the oxidized film. A conductive film is further formed on the thermosetting film. The surface film of the Mg or Mg alloy thus surface-treated has a strong adhesion to the Mg or Mg alloy. The surface-treated Mg or Mg alloy has an excellent corrosion resistance, an excellent heat shock resistance, and a high surface conductivity.
Inventors
- 👤 Goro Yamauchi
- 👤 Kishio Arita
- 👤 Junichi Seki
- 👤 Eiichi Sakita
- 👤 Masato Mino
- 👤 Yuzo Matsudaira
- 👤 Ryozi Takekoshi
- 👤 Yoshimori Miyata
- 👤 Junichi Masuda
- 👤 Yoshitaka Koide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:57
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/06; C23C14/14; C23C14/20; C23C28/00; Y; Y10; Y10S; Y10S205/00; Y10S205/917; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31551; Y10T428/31605; Y10T428/31652; Y10T428/31663; Y10T428/31942
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
A surface-treated magnesium or magnesium alloy comprising: an oxidized film formed on the surface of magnesium or a magnesium alloy; a first thermosetting resin film, which is composed of a material selected from the group consisting of epoxy resin, phenolic resin and melamine resin, formed on said oxidized film; a second thermosetting resin film, which is composed of a material selected from the group consisting of urea resin, urethane resin and silicone resin, formed on said first resin film; a first metal film, which is composed of a metal selected from the group consisting of titanium, nickel and chromium, ion-plated on said second thermosetting resin film; and a second metal film, which is composed of a metal selected from the group consisting of gold, silver and aluminum, formed on said first metal film.
Claim 2
Dependent Claim
133 words
A surface-treated magnesium or magnesium alloy comprising: an oxidized film formed on the surface of magnesium or a magnesium alloy; a first thermosetting resin film, which is composed of a material selected from the group consisting of epoxy resin, phenolic resin and melamine resin, formed on said oxidized film; a second thermosetting resin film, which is composed of a material selected from the group consisting of urea resin, urethane resin and silicone resin, formed on said first resin film; a first metal film, which is composed of a metal selected from the group consisting of titanium, nickel and chromium, ion-plated on said second thermosetting resin film; and a second metal film, which is composed of a metal selected from the group consisting of gold, silver and aluminum, formed on said first metal film.
Claim 3
Dependent Claim
20 words
A surface-treated magnesium or magnesium alloy as claimed in claim 1, wherein said oxidized film is a chemically treated film.
Claim 4
Dependent Claim
19 words
A surface-treated magnesium or magnesium alloy as claimed in claim 1, wherein said oxidized film is an anodized film.
Claim 5
Dependent Claim
130 words
A process for treating a surface of magnesium or magnesium alloy comprising the steps of: forming an anodized film on the surface of magnesium or magnesium alloy; forming a first thermosetting resin film consisting of a material selected from the group consisting of epoxy resin, phenolic resin and melamine resin on said anodized film; forming a second thermosetting resin film consisting of a material selected from the group consisting of urea resin, urethane resin and silicone resin on said first thermosetting resin; ion-plating a metal film consisting of a metal selected from the group consisting of titanium, nickel and chromium on said second thermosetting resin film; and forming a metal film consisting of a metal selected from the group consisting of gold, silver and aluminum on said ion-plated metal film.
Claim 6
Dependent Claim
130 words
A process for treating a surface of magnesium or magnesium alloy comprising the steps of: forming an anodized film on the surface of magnesium or magnesium alloy; forming a first thermosetting resin film consisting of a material selected from the group consisting of epoxy resin, phenolic resin and melamine resin on said anodized film; forming a second thermosetting resin film consisting of a material selected from the group consisting of urea resin, urethane resin and silicone resin on said first thermosetting resin; ion-plating a metal film consisting of a metal selected from the group consisting of titanium, nickel and chromium on said second thermosetting resin film; and forming a metal film consisting of a metal selected from the group consisting of gold, silver and aluminum on said ion-plated metal film.
Claim 7
Dependent Claim
134 words
A process for treating a surface of magnesium or magnesium alloy comprising the steps of: forming a chemically converted oxidized film on the surface of magnesium or magnesium alloy; forming a first thermosetting resin film consisting of a material selected from the group consisting of epoxy resin, phenolic resin and melamine resin on said chemically converted oxidized film; forming a second thermosetting resin film consisting of a material selected from the group consisting of urea resin, urethane resin and silicone resin on said first thermosetting resin; ion-plating a metal film consisting of a metal selected from the group consisting of titanium, nickel and chromium on said second thermosetting resin film; and forming a metal film consisting of a metal selected from the group consisting of gold, silver and aluminum on said ion-plated metal film.
Claim 8
Dependent Claim
134 words
A process for treating a surface of magnesium or magnesium alloy comprising the steps of: forming a chemically converted oxidized film on the surface of magnesium or magnesium alloy; forming a first thermosetting resin film consisting of a material selected from the group consisting of epoxy resin, phenolic resin and melamine resin on said chemically converted oxidized film; forming a second thermosetting resin film consisting of a material selected from the group consisting of urea resin, urethane resin and silicone resin on said first thermosetting resin; ion-plating a metal film consisting of a metal selected from the group consisting of titanium, nickel and chromium on said second thermosetting resin film; and forming a metal film consisting of a metal selected from the group consisting of gold, silver and aluminum on said ion-plated metal film.
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| 3.5 Years (Year 4) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
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