Titanium dioxide, preparation and use
US6200375A · kind A · utility
31Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1999 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Jul 26, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/88
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns a novel titania pigment useful for external painting. This pigment has a titania nucleus coated successively with a layer of zirconium hydroxide or oxyhydroxide, then a layer of titanium hydroxide or oxyhydroxide, then of a layer of co-precipitated phosphate and silica, and finally a layer of aluinium oxyhydroxide. The invention also concerns a method for preparing said pigment and its use in paints, plastics and laminated paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.