| 发明名称 | Method for manufacturing coated phosphor, and coated phosphor | ||
| 摘要 | A process for producing a coated phosphor, namely a phosphor coated with a coating material, which includes a mixing step of mixing a phosphor with a coating material in a solvent to form a mixed fluid and a separation step of separating the mixed fluid into a solid phase and a liquid phase, wherein the phosphor comprises barium (Ba), strontium (Sr), europium (Eu), silicon (Si) and oxygen (O) at an atomic ratio represented by compositional formula (1), and the mass ratio of the phosphor to the coating material is 40:260 to 200:260, [(Ba1-ySry)1-xEux]aSibOc (1) [wherein a, b, c, x and y satisfy the relationships: 2.7<a<3.3, 0.9<b<1.1, 4.5<c<5.5, 0<x<0.09 and 0.25<y<0.75]. | ||
| 申请公布号 | US9309457(B2) | 申请公布日期 | 2016.04.12 |
| 申请号 | US201213978675 | 申请日期 | 2012.01.18 |
| 申请人 | DEXERIALS CORPORATION | 发明人 | Kanno Masaki;Izawa Takamasa;Kusunoki Tsuneo |
| 分类号 | C09K11/02;C09K11/77 | 主分类号 | C09K11/02 |
| 代理机构 | Oliff PLC | 代理人 | Oliff PLC |
| 主权项 | 1. A method for manufacturing a coated phosphor in which a phosphor is coated with a coating material comprising: a mixing step of mixing the phosphor with the coating material in a solvent to form a mixed solution; and a separation step of separating the mixed solution into a solid phase and a liquid phase, wherein the phosphor contains barium (Ba), strontium (Sr), europium (Eu), silicon (Si) and oxygen (O) at an atomic ratio represented by compositional formula (1), and the mass ratio of the phosphor to the coating material is 40:260 to 200:260, [(Ba1-ySry)1-xEux]aSibOc compositional formula (1) wherein a, b, c, x and y satisfy the relationships: 2.7<a<3.3, 0.9<b<1.1, 4.5<c<5.5, 0<x<0.09 and 0.25<y<0.75, wherein the uncoated phosphor has a specific surface area equal to or more than 2 m2/g, andthe coating material is an alkylsilane compound. | ||
| 地址 | Tokyo JP | ||