发明名称 |
Process for producing coated europium activated strontium borate phosphors |
摘要 |
A process is disclosed for producing a europium activated strontium borate phosphor having a strontium containing coating. The process involves washing a europium activated strontium borate phosphor with a solution of strontium hydroxide to produce a first washed phosphor followed by removing the first washed phosphor from the resulting wash solution. The first washed phosphor is washed with a wash solution selected from the group consisting of ammonium fluoride in alcohol, ammonium bifluoride in alcohol, and a strontium salt in ammonium hydroxide, followed by removing the resulting second washed phosphor from the resulting wash solution. The second washed phosphor is then heated to produce the coated phosphor.
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申请公布号 |
US4684539(A) |
申请公布日期 |
1987.08.04 |
申请号 |
US19860892236 |
申请日期 |
1986.08.04 |
申请人 |
GTE PRODUCTS CORPORATION |
发明人 |
CHENOT, CHARLES F.;GRAY, LESLIE F.;KREBS, MICHAEL A. |
分类号 |
C09K11/02;C09K11/77;(IPC1-7):B05D5/06 |
主分类号 |
C09K11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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