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Process for producing thin transparent gold coatings

  • US 6,168,825 B1
  • Filed: 11/02/1999
  • Issued: 01/02/2001
  • Est. Priority Date: 11/02/1998
  • Status: Expired due to Fees
First Claim
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1. Process of applying a blue coating of gold on a surface of a substrate comprising:

  • selecting a substrate having a clean surface, said surface being cleaned sufficiently to permit the adhesion of said blue coating of gold to said surface;

    applying a solid phase sensitizing material to said clean surface;

    forming a liquid mixture of a reducing reagent and a gold ion containing reagent and substantially simultaneously with said forming, applying said liquid mixture to said clean surface; and

    allowing said liquid mixture to react on said clean surface and form a substantially transparent blue colored gold deposit on said clean surface.

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