GB734444A - Improvements in or relating to glass compositions - Google Patents

Improvements in or relating to glass compositions

Info

Publication number
GB734444A
GB734444A GB750553A GB750553A GB734444A GB 734444 A GB734444 A GB 734444A GB 750553 A GB750553 A GB 750553A GB 750553 A GB750553 A GB 750553A GB 734444 A GB734444 A GB 734444A
Authority
GB
United Kingdom
Prior art keywords
relating
glass compositions
pbo
march
fluorine
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
GB750553A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB750553A priority Critical patent/GB734444A/en
Publication of GB734444A publication Critical patent/GB734444A/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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • 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
    • C03C3/102—Glass compositions containing silica with 40% to 90% silica, by weight containing lead
    • 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
    • C03C3/11—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen
    • C03C3/112—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine
    • C03C3/115—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine containing boron
    • C03C3/118—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine containing boron containing aluminium

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

734,444. Glass. GENERAL ELECTRIC CO., Ltd., OLDFIELD, L. F., and PARTRIDGE, J. H. March 15, 1954 [March 18, 1953], No. 7505/53. Class 56. Glasses suitable for making relatively large envelopes for electric discharge devices comprise, in percentage parts by weight, SiO 2 64-69; Na 2 O 6-10; K 2 O 5-9; [Na 2 O+ K 2 O=14.5-16.5] ; BaO 5-9; CaO 0-1.5; SrO 0-3; Al 2 O 3 0.5-5; B 2 O 3 1-5; Cl 2 0-0.5 ; P 2 O 5 0-1 ; a fining agent, e.g. Sb 2 O 3 0-0.3; and optionally PbO 4-7 with 0.3-0.6 of fluorine, but if no PbO is present 0.9-1.5 of fluorine is used.
GB750553A 1953-03-18 1953-03-18 Improvements in or relating to glass compositions Expired GB734444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB750553A GB734444A (en) 1953-03-18 1953-03-18 Improvements in or relating to glass compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB750553A GB734444A (en) 1953-03-18 1953-03-18 Improvements in or relating to glass compositions

Publications (1)

Publication Number Publication Date
GB734444A true GB734444A (en) 1955-08-03

Family

ID=9834404

Family Applications (1)

Application Number Title Priority Date Filing Date
GB750553A Expired GB734444A (en) 1953-03-18 1953-03-18 Improvements in or relating to glass compositions

Country Status (1)

Country Link
GB (1) GB734444A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2035486A5 (en) * 1969-02-17 1970-12-18 Owens Illinois Inc
US4520115A (en) * 1982-08-02 1985-05-28 Schott Glaswerke High absorbance Pb-containing glass for cathode ray tube picture screen
FR2560870A1 (en) * 1984-03-09 1985-09-13 Corning Glass Works GLASSES WITH LOW LEAD OXIDE CONTENT USEFUL FOR PRODUCING ELECTRICAL COMPONENTS
US5215944A (en) * 1991-07-29 1993-06-01 Ppg Industries, Inc. X-ray absorbing glass compositions

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2035486A5 (en) * 1969-02-17 1970-12-18 Owens Illinois Inc
US4520115A (en) * 1982-08-02 1985-05-28 Schott Glaswerke High absorbance Pb-containing glass for cathode ray tube picture screen
FR2560870A1 (en) * 1984-03-09 1985-09-13 Corning Glass Works GLASSES WITH LOW LEAD OXIDE CONTENT USEFUL FOR PRODUCING ELECTRICAL COMPONENTS
EP0156526A1 (en) * 1984-03-09 1985-10-02 Corning Glass Works Low PbO - containing glass for electrical devices
US5215944A (en) * 1991-07-29 1993-06-01 Ppg Industries, Inc. X-ray absorbing glass compositions

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