Patent ID: 9199875
Filing Date: 2015-12-01
Classification: B32B,B60J,C03C,E04D,E06B,F25D,Y02A,Y02B,Y10T

Abstract:
1. An insulating glass (IG) window unit, comprising: first and second substantially parallel spaced apart glass substrates, the first and second glass substrates providing, in order, first through fourth substantially parallel major surfaces of the IG window unit, a gap being defined between the first and second substrates; wherein the first glass substrate of the IG window unit supports a first low-E coating comprising a plurality of thin film layers including, in order moving away from the first substrate: wherein the protective layer comprising oxygen and aluminum is the outermost layer of the coating and is to be exposed to an external environment adjacent the IG window unit; and wherein the coating has a hemispherical emissivity of less than 0.23 and a sheet resistance of less than 30 ohms/square.