Patent ID: 7491349
Filing Date: 2009-02-17
Classification: B82Y,C01B,C01G,C01P,C04B,C09C

Abstract:
1. A black titanium oxynitride which has a chemical composition represented by the formula: TiN x O y .nSiO 2 wherein x represents a ratio of nitrogen atom to titanium atom, y represents a ratio of oxygen atom to titanium atom, wherein 0<x<2 and 0<y<2, n represents a molar ratio of SiO N is present in an amount by weight 17≦N<23 wt %, said black titanium oxynitride has a specific surface area of 5-30 m said black titanium oxynitride is obtained by a process comprising the following steps: coating silicon oxide on one or more titanium oxide particles; and firing the titanium oxide particles in the presence of a nitrogen-containing reducing agent.