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Matchable, heat treatable, durable, ir-reflecting sputter-coated glasses and method of making same

  • US 5,837,108 A
  • Filed: 08/07/1997
  • Issued: 11/17/1998
  • Est. Priority Date: 08/05/1993
  • Status: Expired due to Term
First Claim
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1. A method of heat treating a coated glass article comprising:

  • a) sputter-coating onto a glass substrate having a thickness of about 1.5 mm-13 mm a layer system comprising from the glass substrate outwardly;

    an undercoat layer comprised of silicon nitride;

    a substantially metallic layer which includes nickel or a nickel alloy having a nickel content of at least 10% by weight Ni, and which is substantially free of any nitride, or oxide; and

    an overcoat layer comprised of silicon nitride, andb) thereafter subjecting said coated glass substrate to a heat treatment selected from the group consisting of bending, tempering, heat strengthening and combinations thereof;

    wherein after said heat treatment the resultant article exhibits a glass side reflectance Δ

    H of no greater than about 2.0.

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