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Anodizing and duplex protection of aluminum copper alloys

  • US 5,362,569 A
  • Filed: 03/22/1993
  • Issued: 11/08/1994
  • Est. Priority Date: 03/22/1993
  • Status: Expired due to Fees
First Claim
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1. Method of protecting copper alloys of aluminum against surface corrosion, comprising anodizing the aluminum surface to be protected, treating said surface with a heterocyclic aromatic azole treating agent having up to 16 carbon atoms before, during or after the anodizing step, and coating said treated surface after the anodizing step with a fatty acid of 5 to 24 carbon atoms.

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