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Double silver low-emissivity and solar control coatings

  • US 7,632,572 B2
  • Filed: 05/07/2007
  • Issued: 12/15/2009
  • Est. Priority Date: 09/04/2001
  • Status: Expired due to Term
First Claim
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1. A low-emissivity coating on a substrate, the coating comprising, in numerical order outward from the substrate,a first layer including at least one layer selected from titanium oxide layers and silicon nitride layers;

  • a second layer including Ag;

    a third layer including at least one layer selected from titanium oxide layers and silicon nitride layers;

    a fourth layer including Ag; and

    a fifth layer including silicon nitride, whereinat least one of the second layer and the fourth layer comprisesa sublayer including Ag, anda sublayer consisting of a fully oxidized Ni—

    Cr alloy directly on, and outward from the substrate from, the Ag of the sublayer including Ag.

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