Patent ID: 7947249

Claim:
An exfoliated titania particle represented by the following composition formula: Ti 2-x/3 O 4 (4x/3)− where x is 0.57-1.0, wherein said titania particle composition is a single phase, and said composition is obtainable by the process comprising: producing a mixed alkali metal titanate by mixing alkali metal oxides M 2 0 and M′ 2 0, where M and M′ are mutually different kinds of alkali metals, or compounds decomposable to M 2 0 and M′ 2 0, by heating with titanium dioxide or a compound capable of forming titanium dioxide by heating in a molar ratio of M/M′/Ti of 3/1/5-3/1/11, followed by firing the mixture at a temperature of 500-1,100° C.; producing a layered titanic acid compound by treating the alkali metal titanate with an aqueous acid solution; and dispersing the layered titanic acid compound in a liquid medium in the presence of a basic compound.