GB1034037A - Fluorescent glass spheres - Google Patents

Fluorescent glass spheres

Info

Publication number
GB1034037A
GB1034037A GB2060664A GB2060664A GB1034037A GB 1034037 A GB1034037 A GB 1034037A GB 2060664 A GB2060664 A GB 2060664A GB 2060664 A GB2060664 A GB 2060664A GB 1034037 A GB1034037 A GB 1034037A
Authority
GB
United Kingdom
Prior art keywords
glass
spheres
na2o
tio2
zno
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2060664A
Inventor
Carl Frederick Brown
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Prismo Safety Corp
Original Assignee
Prismo Safety Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Prismo Safety Corp filed Critical Prismo Safety Corp
Priority to GB2060664A priority Critical patent/GB1034037A/en
Publication of GB1034037A publication Critical patent/GB1034037A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C12/00—Powdered glass; Bead compositions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/14—Silica-free oxide glass compositions containing boron
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • C03C4/12—Compositions for glass with special properties for luminescent glass; for fluorescent glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

Transparent, luminescent, glass spheres less than 50 mil diameter, preferably having a refractive index greater than 1.9, are made by incorporating 0.1-0.4 w/o. UO3 is the glass. The spheres may be embedded in a reflective binder to form highway markers, the retention of spheres in the marker after use being readily detected by exciting and measuring their fluorescence. Glass compositions given are (weight per cent): SiO2 71-73, Na2O 12-15, CaO 8-10, MgO 1.5-3.5, Al2O3 0.5-1.5, UO3 0.1-0.4; TiO2 27-46.2, BaO 33.2-62.2, B2O3 3.7-19.1, ZnO 0-16.5, Na2O 0-0.1, UO3 0.1-0.4; and a glass prepared from the following mix (parts by weight): TiO2 35.0, Ba(NO3)2 96.7, H3BO3 Na2UO4 0.5.ALSO:Transparent luminescent glass spheres less than 50 mil diameter, preferably having a refractive index greater than 1.9, are made by incorporating 0.1-0.4 w/o UO3 in the glass. The spheres may be embedded in a reflactive binder to form highway markers, the retention of the spheres after use being readily detected by exciting and measuring their fluorescence. Glass composition given are (weight per cent): SiO2 71-73, Na2O 12-15, CaO 8-10, MgO 1.5-3.5, Al2O3 0.5-1.5, UO3 0.1-0.4; TiO2 27-46.2, BaO 33.2-66.2, B2O3 3.7-19.1, ZnO 0-16.5, Na2O 0-0.1, UO3 0.1-0.4; and a glass prepared from the following mix (parts by weight) TiO2 35.0, Ba(NO3)2 96.7, H3BO3 11.6, ZnO 1.5, Na2UO4 0.5.
GB2060664A 1964-05-19 1964-05-19 Fluorescent glass spheres Expired GB1034037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2060664A GB1034037A (en) 1964-05-19 1964-05-19 Fluorescent glass spheres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2060664A GB1034037A (en) 1964-05-19 1964-05-19 Fluorescent glass spheres

Publications (1)

Publication Number Publication Date
GB1034037A true GB1034037A (en) 1966-06-29

Family

ID=10148715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2060664A Expired GB1034037A (en) 1964-05-19 1964-05-19 Fluorescent glass spheres

Country Status (1)

Country Link
GB (1) GB1034037A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2399390A1 (en) * 1977-08-01 1979-03-02 Minnesota Mining & Mfg TRANSPARENT GLASS ELEMENTS
EP0102790A2 (en) * 1982-08-25 1984-03-14 Kabushiki Kaisha Toshiba Storage & reconstruction apparatus for radiation image
EP0768950A1 (en) * 1994-07-07 1997-04-23 Iit Research Institute Fluorescent beads for improved roadway marker visibility
WO1999027396A1 (en) * 1997-11-21 1999-06-03 Minnesota Mining And Manufacturing Company Luminous retroreflective sheeting and method for making same
WO2001090013A1 (en) * 2000-05-19 2001-11-29 Schott Glas Method for marking a glass material and a corresponding glass material
EP1418062A1 (en) * 2002-11-11 2004-05-12 Stefan Baumann Method for obtaining an interior or exterior finish surface
CN101497498B (en) * 2008-01-31 2010-11-24 朱冬梅 Solid glass micro-bead for explosive identification and manufacture method thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2399390A1 (en) * 1977-08-01 1979-03-02 Minnesota Mining & Mfg TRANSPARENT GLASS ELEMENTS
EP0102790A2 (en) * 1982-08-25 1984-03-14 Kabushiki Kaisha Toshiba Storage & reconstruction apparatus for radiation image
EP0102790A3 (en) * 1982-08-25 1986-02-12 Kabushiki Kaisha Toshiba Storage & reconstruction apparatus for radiation image
EP0768950A1 (en) * 1994-07-07 1997-04-23 Iit Research Institute Fluorescent beads for improved roadway marker visibility
EP0768950A4 (en) * 1994-07-07 2000-03-08 Iit Res Inst Fluorescent beads for improved roadway marker visibility
WO1999027396A1 (en) * 1997-11-21 1999-06-03 Minnesota Mining And Manufacturing Company Luminous retroreflective sheeting and method for making same
US5988822A (en) * 1997-11-21 1999-11-23 3M Innovative Properties Company Luminous retroreflective sheeting and method for making same
WO2001090013A1 (en) * 2000-05-19 2001-11-29 Schott Glas Method for marking a glass material and a corresponding glass material
EP1418062A1 (en) * 2002-11-11 2004-05-12 Stefan Baumann Method for obtaining an interior or exterior finish surface
CN101497498B (en) * 2008-01-31 2010-11-24 朱冬梅 Solid glass micro-bead for explosive identification and manufacture method thereof

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