GB585282A - Improvements relating to heat resisting glass - Google Patents

Improvements relating to heat resisting glass

Info

Publication number
GB585282A
GB585282A GB357545A GB357545A GB585282A GB 585282 A GB585282 A GB 585282A GB 357545 A GB357545 A GB 357545A GB 357545 A GB357545 A GB 357545A GB 585282 A GB585282 A GB 585282A
Authority
GB
United Kingdom
Prior art keywords
per cent
mgo
bao
cao
resisting glass
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
GB357545A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB357545A priority Critical patent/GB585282A/en
Publication of GB585282A publication Critical patent/GB585282A/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
    • C03C3/083—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
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/097—Glass compositions containing silica with 40% to 90% silica, by weight containing phosphorus, niobium or tantalum

Abstract

585,282. Glass. BRITISH THOMSONHOUSTON CO.. Ltd., and STANWORTH, J. E. Feb. 13, 1945, No. 3575. [Class 56] A heat-resisting glass suitable for the envelopes of H.P.M.V. lamps comprises Al2O3 20-25 per cent by weight ; B2O3 and/or P2O5 0-5 per cent (preferably within the range 2.5-5 per cent) ; CaO+MgO+BaO 17-21 per cent; remainder substantially wholly SiO2. As regards the CaO+MgO+BaO not more than 12 per cent CaO not more than 13 per cent (but preferably, for the hardest glasses, not more than 5 per cent) MgO, and not more than 9 per cent BaO are present. Specification 533,361 is referred to.
GB357545A 1945-02-13 1945-02-13 Improvements relating to heat resisting glass Expired GB585282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB357545A GB585282A (en) 1945-02-13 1945-02-13 Improvements relating to heat resisting glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB357545A GB585282A (en) 1945-02-13 1945-02-13 Improvements relating to heat resisting glass

Publications (1)

Publication Number Publication Date
GB585282A true GB585282A (en) 1947-02-04

Family

ID=9760924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB357545A Expired GB585282A (en) 1945-02-13 1945-02-13 Improvements relating to heat resisting glass

Country Status (1)

Country Link
GB (1) GB585282A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310413A (en) * 1963-01-17 1967-03-21 Corning Glass Works Aluminosilicate glass
WO2005066091A2 (en) * 2003-12-30 2005-07-21 Corning Incorporated High strain point glasses

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310413A (en) * 1963-01-17 1967-03-21 Corning Glass Works Aluminosilicate glass
WO2005066091A2 (en) * 2003-12-30 2005-07-21 Corning Incorporated High strain point glasses
WO2005066091A3 (en) * 2003-12-30 2006-02-02 Corning Inc High strain point glasses
JP2007516932A (en) * 2003-12-30 2007-06-28 コーニング インコーポレイテッド High strain point glass
US7323426B2 (en) 2003-12-30 2008-01-29 Corning Incorporated High strain point glasses

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