The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2009
Filed:
May. 09, 2006
Liang Hong, Singapore, SG;
Zhaolin Liu, Singapore, SG;
Huixin Jiang, Singapore, SG;
Bing Guo, Singapore, SG;
Liang Hong, Singapore, SG;
Zhaolin Liu, Singapore, SG;
Huixin Jiang, Singapore, SG;
Bing Guo, Singapore, SG;
Agency for Science, Technology and Research, Centros, SG;
Abstract
A sol solution containing poly(titanic acid) and a planar heterocyclic ligand is provided. Titanium dioxide (TiO) particles are formed by aging the sol solution at a temperature below about 140° C. The particles have multi-coordinated Ti-complexes comprising the heterocyclic ligand and can be substantially in the anatase phase. The heterocyclic ligands can be triazole, tetrazole, or thiadiazole. The sol solution may be prepared by aging a precursor solution. The precursor solution may contain the heterocyclic ligands and a precursor for poly(titanic acid). The precursor may be titanium alkoxide or titanium chloride. The sol solution may also contain at least one of an organic acid, a base, and a surfactant. The aged sol solution may form a colloidal dispersion of the TiOparticles. A photo-catalytic and transparent film may be formed from the TiOparticles by depositing a layer of the colloidal dispersion on a support.