Matchable, heat treatable, durable, IR-reflecting sputter-coated glasses and method of making same
AssigneeGuardian Industries Corp.
InventorsPhilip J. Lingle, Klaus W. Hartig, Steven L. Larson
Life of this patent
Estimating the term…
Abstract
A sputter-coated layer system including a non-nitrided and non-oxidized nickel or nickel alloy layer located between two layers of Si.sub.3 N.sub.4 of the requisite thicknesses and used for architectural and automotive glass substrates so as to be heat treatable and have .DELTA.E characteristics sufficiently low to render the products matchable as between heat treated and non-heat treated products having the same coating thereon.
Claims12
A heat treated glass article exhibiting a glass side reflectance .DELTA.E.sub.H no greater than about 2.0 including a glass substrate having a thickness of about 1.5 mm-13 mm and having thereon a sputter-coated layer system comprising from the glass substrate outward:
- a) an undercoat layer comprised of silicon nitride;
- b) 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
- c) an overcoat layer comprised of silicon nitride.
Dependencies are inferred from the claim text.