GB1261873A - Glass compositions - Google Patents

Glass compositions

Info

Publication number
GB1261873A
GB1261873A GB2236170A GB2236170A GB1261873A GB 1261873 A GB1261873 A GB 1261873A GB 2236170 A GB2236170 A GB 2236170A GB 2236170 A GB2236170 A GB 2236170A GB 1261873 A GB1261873 A GB 1261873A
Authority
GB
United Kingdom
Prior art keywords
glass
bao
glass compositions
2sro
sro
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
GB2236170A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1261873A publication Critical patent/GB1261873A/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
    • C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
    • 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

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

1,261,873. Glass composition. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 8 May, 1970 [13 May, 1969], No. 22361/70. Heading C1M. A glass consists of (weight per cent):- SiO 2 . . 64-69 Na 2 O . . 8-11 K 2 O . . 7-10 Al 2 O 3 . . 3-5 MgO . . 0-3 CaO . . 1-4 BaO . . 0-12 # where BaO+2SrO SrO . . 1-7 # = 11-14 CeO 2 . . 0À05-0À3 As 2 O 3 and/or Sb 2 O 3 . . 0À3-0À7 The glass may be used as the envelope or face-plate in a cathode-ray tube, e.g. a colour television tube, and has a coefficient of thermal expansion of approximately 100 x 10<SP>-7</SP>/<SP>‹</SP> C. which is compatible with that of many existing glasses and metal components to which the parts are to be sealed.
GB2236170A 1969-05-13 1970-05-08 Glass compositions Expired GB1261873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6907309A NL6907309A (en) 1969-05-13 1969-05-13

Publications (1)

Publication Number Publication Date
GB1261873A true GB1261873A (en) 1972-01-26

Family

ID=19806938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2236170A Expired GB1261873A (en) 1969-05-13 1970-05-08 Glass compositions

Country Status (7)

Country Link
AU (1) AU1465170A (en)
BE (1) BE750252A (en)
CA (1) CA918181A (en)
DE (1) DE2019403A1 (en)
FR (1) FR2047673A5 (en)
GB (1) GB1261873A (en)
NL (1) NL6907309A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7504202A (en) * 1975-04-09 1976-10-12 Philips Nv GLASS FOR CATHOD BEAM TUBES FOR DISPLAY OF TELEVISION IMAGES.

Also Published As

Publication number Publication date
NL6907309A (en) 1970-11-17
FR2047673A5 (en) 1971-03-12
BE750252A (en) 1970-11-12
DE2019403A1 (en) 1970-11-19
CA918181A (en) 1973-01-02
AU1465170A (en) 1971-11-11

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