Inorganic pigments and process for preparing same
US4097300A · kind A · utility
5Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1977 |
| Grant date | Jun 27, 1978 |
| Priority date | — |
| Expiry date | Jul 18, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/60
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to new inorganic pigments and to a process for preparing same. More particularly, it relates to new yellowish-green pigments consisting of titanium compounds. These pigments consist of the crystalline phases rutile TiO.sub.2, perovskite CaCO.sub.3 and trigonal CoTiO.sub.3. They contain 2 to 12% by weight of cobalt and 4 to 20% by weight of calcium based on total TiO.sub.2 and they have a dominant wave length .lambda..sub.D comprised between 530 and 560 m.mu..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.