Magnesium oxide powder, production method therefor, thermally-conductive resin composition, thermally-conductive grease, and thermally-conductive coating material
US11065684B2 · kind B2 · utility
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Key dates
| Filing date | Nov 5, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Nov 5, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/222
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A magnesium oxide powder has: a median diameter (D50) of 5 to 100 μm; a MgO purity of 98% by mass or more; a Ca compound content of 2% by mass or less in terms of CaO; and when the magnesium oxide powder is immersed in pure water and allowed to stand at 95° C. for 24 hours, a mass ratio of calcium ions to magnesium ions, Ca/Mg, in an aqueous solution of 10 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.