Titania-metal composite and method for preparation thereof, and film forming method using dispersion comprising the composite
US8518174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2011 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Sep 6, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12771
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Under the presence of at least one out of copper, manganese, nickel, cobalt, iron, zinc, and compounds thereof, a tetravalent titanium salt solution and a basic solution are reacted together to form a hydroxide of titanium and the above metal, and then the titanium hydroxide is peroxidated with an oxidizing agent to manufacture an aqueous liquid or dispersion having titania-metal composite having peroxy groups, and not having a photocatalytic activity fine particles dispersed therein, wherein the titania-metal composite includes particles of at least one of elemental copper, manganese, nickel, cobalt, iron, zinc and compounds thereof; using this to form a coating film, a drop in decorativeness of color due to fading or discoloration of a coating material, a printed article, a building material, a fiber, an organic polymer resin product or the like can be prevented, and moreover surface anti-soiling and hydrophilic properties can be realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.