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Low emissivity coating with low solar heat gain coefficient, enhanced chemical and mechanical properties and method of making the same

  • US 7,659,002 B2
  • Filed: 01/03/2007
  • Issued: 02/09/2010
  • Est. Priority Date: 05/12/2005
  • Status: Active Grant
First Claim
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1. A low-emissivity coating on a substrate, the coating comprising, in order outward from the substrate:

  • a) a first dielectric layer;

    b) a first Ag layer;

    c) a first barrier layer comprising an oxide of nickel and/or chromium, wherein the first barrier layer comprises about 15 to 60 atomic percent oxygen;

    d) a first absorbing layer comprising nickel and/or chromium;

    e) a second dielectric layer;

    f) a second Ag layer;

    g) a second absorbing layer;

    i) a third dielectric layer; and

    j) optionally, a topcoat layer,wherein the first barrier layer is in direct contact with the first Ag layer,the first absorbing layer is in direct contact with the first barrier layer and either the first absorbing layer or the second absorbing layer is optional.

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