Patent ID: 9126145
Filing Date: 2015-09-08
Classification: B01D,B01J,B82Y,C04B,C08K,C09D,Y10T

Abstract:
1. A method of removing NO x compounds from the air comprising applying to a surface a layer of de-polluting coating comprising photocatalytic titanium dioxide, one or more additional pigments, and an organic latex binder comprising a styrene acrylic copolymer, said photocatalytic titanium dioxide being characterized by an average crystallite size between about 5 nm and about 10 nm, a surface area greater than 250 m 2 /g, and having photocatalytic activity in the presence of visible light, said coating being capable of substantially removing NO x compounds from the air in the presence of visible light, without a step of first washing the coating with water to activate it.