Low-E glass coating system and insulating glass units made there

Details Low-E glass coating system and insulating glass units made there Low-E glass coating system and insulating glass units made there

1994-12-15

1996-05-07

Ryan, Patrick J.

Stock material or miscellaneous articles

Composite

Of quartz or glass

428432, 428622, 428623, 428627, 428630, 359360, B32B 1706

Patent

active

055144764

ABSTRACT:
A sputter-coated glass layer system particularly useful in insulating glass units ("IGs"), which includes a single layer of silver having a thickness of about 115 .ANG. -190 .ANG. located between two layers of nickel or nichrome having a thickness of 7 .ANG. or less, and provided with an undercoat and an overcoat of Si.sub.3 N.sub.4 having thicknesses of about 450 .ANG.-600 .ANG. and about 580 .ANG.-800 .ANG. respectively, such that a glass so coated achieves normal emissivity values (E.sub.n 's) of less than about 0.07 and good durability without acquiring a mirror-like and highly purple appearance.

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