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Luminescent glass

外国特許コード F110005464
整理番号 K05316US
掲載日 2011年9月6日
出願国 アメリカ合衆国
出願番号 53669503
公報番号 20060037366
公報番号 7758774
出願日 平成15年11月28日(2003.11.28)
公報発行日 平成18年2月23日(2006.2.23)
公報発行日 平成22年7月20日(2010.7.20)
国際出願番号 JP2003015208
国際公開番号 WO2004050576
国際出願日 平成15年11月28日(2003.11.28)
国際公開日 平成16年6月17日(2004.6.17)
優先権データ
  • 特願2002-349153 (2002.11.29) JP
  • 特願2003-128325 (2003.5.6) JP
  • 特願2003-128333 (2003.5.6) JP
  • 2003WO-JP15208 (2003.11.28) WO
発明の名称 (英語) Luminescent glass
発明の概要(英語) (US7758774)
The present invention provides a process for producing a luminescent glass, comprising the steps of adsorbing, to a porous high silica glass, at least one metal component selected from the group consisting of elements of Groups IIIA, IVA, VA, VIA, VIIA, VIII, IB, IIB and IVB of the Periodic Table; and thereafter heating the porous glass in a reducing atmosphere.
The luminescent glass obtained by the process is excellent in heat resistance, chemical durability, mechanical strength and other properties, and exhibits strong luminescence when irradiated with UV light or the like.
The glass can be effectively used as a luminous body for lighting systems, display devices, etc.
特許請求の範囲(英語) [claim1]
1. A luminescent glass obtained by a process comprising the steps of adsorbing, to a porous high silica glass, at least one metal component selected from the group consisting of Sc, Y, La, Pr, Nd, Pm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and elements of Groups IVA, VA, VIA, VIIA, VIII, IIB and IVB of the Periodic Table; and thereafter heating the porous glass in a reducing atmosphere, the luminescent glass comprising at least 96 wt. % of SiO2, 0.5 to 3 wt. % of B2O3, 0.1 to 1.5 wt. % of Al2O3, and 50 to 2000 ppm of at least one metal component selected from the group consisting of Sc, Y, La, Pr, Nd, Pm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and elements of Groups IVA, VA, VIA, VIIA, VIII, IIB and IVB of the Periodic Table.
[claim2]
2. A luminescent glass according to claim 1, wherein the metal component to be adsorbed to the porous high silica glass is at least one member selected from the group consisting of elements of the fourth period of the Periodic Table, elements of the fifth period of the Periodic Table, and lanthanoids.
[claim3]
3. A luminescent glass according to claim 2, wherein the metal component to be adsorbed to the porous high silica glass is at least one member selected from the group consisting of V, Cr, Mn, Fe, Co, Ni, Sn, and Tb.
[claim4]
4. A luminescent glass according to claim 1, wherein the metal component to be adsorbed to the porous high silica glass is at least one metal component selected from the group consisting of Sc, Y, La, Pr, Nd, Pm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu.
[claim5]
5. A luminescent glass according to claim 1, wherein the metal component to be adsorbed to the porous high silica glass is at least one metal component selected from the group consisting of elements of Groups IVA, VA, WA, VIIA, VIII, IIB and IVB of the Periodic Table.
[claim6]
6. A luminescent glass according to claim 1, wherein the heating temperature is 900 to 1600 deg. C.
[claim7]
7. A luminescent glass according to claim 1, obtained by the process which further comprises, before the heating step, the step of adsorbing, to the porous glass, at least one element selected from the group consisting of B, N, F, Al, and P.
[claim8]
8. A luminescent glass according to claim 1, wherein the porous high silica glass is obtained by causing phase separation of an alkali borosilicate glass by heat treatment and then treating the phase-separated glass with an acid.
  • 発明者/出願人(英語)
  • CHEN DANPING
  • AKAI TOMOKO
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
国際特許分類(IPC)
米国特許分類/主・副
  • 252/301.400F
  • 252/301.400R
  • 252/301.600F
  • 501/54
参考情報 (研究プロジェクト等) PRESTO Conversion and Control by Advanced Chemistry AREA
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