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Coated glazing material

  • US 5,110,662 A
  • Filed: 12/28/1989
  • Issued: 05/05/1992
  • Est. Priority Date: 01/05/1989
  • Status: Expired due to Term
First Claim
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1. An article, comprising:

  • a glazing material coated with a multi-layer coating comprised of a reflective layer of silver sandwiched between a transparent undercoat and a transparent overcoat,wherein said transparent undercoat is provided on said glazing material and comprises at least one layer of at least one metal oxide selected from the group consisting of tin oxide, titanium dioxide, aluminium oxide, bismuth oxide, and mixtures thereof, over which is deposited a layer of zinc oxide having a thickness not greater than 15 nm, said layer of zinc oxide being in direct contact with said reflective layer of silver, andwherein said transparent overcoat comprises a layer of an oxide of at least one sacrificial metal selected from the group consisting of titanium, aluminium, stainless steal, bismuth, tin, and mixtures thereof, formed by initial deposition of said at least one sacrificial metal and conversion of said initial deposition of said at least one sacrificial metal to said oxide.

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