Pigments of simultaneously substituted pyrochlore and related structures
US9062216B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/52
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A compound or a pigment comprising a compound where there is simultaneous substitution of more or more elements onto both the A and B sites of a pyrochlore lattice or a lattice related to a pyrochlore. The pigment comprises a compound with the formula of AyA′y′BxB′x′Zp. Elements A and A′ have a valence of 1, 2, or 3; and are selected from the elements of groups 1, 2, 12, 13, 14, 15, and the first row of transition metals, excluding H, Pb, Cd, Hg, N, As, and Tl. Elements B and B′ have a valence of 3, 4, 5, or 6; and are selected from the elements of the first, second, or third row of transition metals, groups 13, 14, and 15, excluding V, C, Pb, and Tl. Element Z is selected from O, F, N, a chalcogen, S, Se, hydroxide ion, and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.