Patent ID: 7820309
Filing Date: 2010-10-26
Classification: C03C,C23C,Y10T

Abstract:
1. A substrate having a major surface on which there is a low-maintenance coating, the low-maintenance coating including a functional film comprising both titanium oxide and tungsten oxide, wherein the functional film has a tungsten load characterized by a metal-only weight ratio of between about 0.01 and about 0.34, this ratio being the weight of the tungsten in the film divided by the weight of the titanium in the film, wherein the substrate is glass in an annealed state, and wherein the functional film has a thickness of greater than 40 Å and less than 100 Å and yet the low-maintenance coating has an acetone decomposition rate of greater than 1.4×10 −10 moles/(liter)(second).