GB620092A - Improvements in and relating to glasses having a low coefficient of expansion - Google Patents

Improvements in and relating to glasses having a low coefficient of expansion

Info

Publication number
GB620092A
GB620092A GB298/47A GB29847A GB620092A GB 620092 A GB620092 A GB 620092A GB 298/47 A GB298/47 A GB 298/47A GB 29847 A GB29847 A GB 29847A GB 620092 A GB620092 A GB 620092A
Authority
GB
United Kingdom
Prior art keywords
per cent
bao
pbo
cao
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
GB298/47A
Other languages
English (en)
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Publication of GB620092A publication Critical patent/GB620092A/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
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/02—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing by fusing glass directly to metal
    • 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
    • C03C3/108—Glass compositions containing silica with 40% to 90% silica, by weight containing lead containing boron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Glass Compositions (AREA)
GB298/47A 1946-01-05 1947-01-03 Improvements in and relating to glasses having a low coefficient of expansion Expired GB620092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR841623X 1946-01-05

Publications (1)

Publication Number Publication Date
GB620092A true GB620092A (en) 1949-03-18

Family

ID=9308933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB298/47A Expired GB620092A (en) 1946-01-05 1947-01-03 Improvements in and relating to glasses having a low coefficient of expansion

Country Status (5)

Country Link
US (1) US2469867A (en:Method)
DE (1) DE841623C (en:Method)
FR (1) FR922803A (en:Method)
GB (1) GB620092A (en:Method)
NL (1) NL66938C (en:Method)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956219A (en) * 1954-09-21 1960-10-11 Welwyn Electrical Lab Ltd Electrical condensers
US3106474A (en) * 1961-07-26 1963-10-08 Vitramon Inc Vitreous ceramic compositions
DE3429847C2 (de) * 1984-08-14 1987-04-09 Schott Glaswerke, 6500 Mainz Glaszusammensetzungen mit geringen dielektrischen Verlusten
NL8403076A (nl) * 1984-10-10 1986-05-01 Philips Nv Glassamenstelling geschikt voor gebruik in een fluorescentielamp en in een beeldbuis, fluorescentielamp en beeldbuis vervaardigd onder toepassing van deze glassamenstelling.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT388193A (en:Method) * 1939-12-11

Also Published As

Publication number Publication date
NL66938C (en:Method)
US2469867A (en) 1949-05-10
FR922803A (fr) 1947-06-19
DE841623C (de) 1952-06-16

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