Purified potassium hexafluoromanganate and methods for purifying potassium hexafluoromanganate
US11702348B2 · kind B2 · utility
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Key dates
| Filing date | Aug 19, 2016 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Dec 11, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A potassium hexafluoromanganate (K2MnF6) composition includes no more than six parts per million of each of one or more Group 13 elements, no more than 520 parts per million of one or more alkaline earth metals, no more than fourteen parts per million of one or more transition metals, and/or no more than forty parts per million of calcium. A method for providing this composition, as well as lighting apparatuses, backlight units, and electronic devices including phosphors formed from the composition also are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.