Process for preparing high quality titanium dioxide
US4505886A · kind A · utility
10Cited by
28References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1983 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Jul 1, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/60
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for preparing high quality titanium dioxide which exhibits excellent reflectance and tint strength when incorporated into a coating formulation. The process involves the preparation of a seed solution wherein one of the seed curing factors of time, temperature and amount of alkaline neutralizing agent are varied to establish maximum reflectance and tint strength values obtained by the final product. The process can be repeated to analyze one or both of the other factors. The process can be used to prepare titanium dioxide in the anatase or rutile form and on a batch or continuous basis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.