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GB1094538A - Glass composition - Google Patents

Glass composition

Info

Publication number
GB1094538A
GB1094538A GB2598165A GB2598165A GB1094538A GB 1094538 A GB1094538 A GB 1094538A GB 2598165 A GB2598165 A GB 2598165A GB 2598165 A GB2598165 A GB 2598165A GB 1094538 A GB1094538 A GB 1094538A
Authority
GB
United Kingdom
Prior art keywords
metaphosphate
alkaline earth
weight per
per cent
alkali metal
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
GB2598165A
Inventor
Robert Arthur Weidel
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.)
Bausch and Lomb Inc
Original Assignee
Bausch and Lomb Inc
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 Bausch and Lomb Inc filed Critical Bausch and Lomb Inc
Publication of GB1094538A publication Critical patent/GB1094538A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C3/00Glass compositions
    • C03C3/12Silica-free oxide glass compositions
    • C03C3/16Silica-free oxide glass compositions containing phosphorus
    • C03C3/21Silica-free oxide glass compositions containing phosphorus containing titanium, zirconium, vanadium, tungsten or molybdenum
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C3/00Glass compositions
    • C03C3/12Silica-free oxide glass compositions
    • C03C3/16Silica-free oxide glass compositions containing phosphorus
    • C03C3/19Silica-free oxide glass compositions containing phosphorus containing boron

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

A glass composition is equivalent to batch constituents consisting essentially in weight per cent of: aluminium metaphosphate, 33-50; alkali metal metaphosphate, 16-25; alkaline earth metal metaphosphate, 16-25; and B2O3 and/or TiO2, 1-35. The alkali metal may be e.g. Li or K, and the alkaline earth metal may be e.g. Mg or Ba. Other optional ingredients include BaCO3, ZnO, K2CO3, Na2 CO3, ZrO2, CaCO3, MgCO3, SrCO3, PbO, borax, Li2O, Rb2O, Cs2O, CdO, Al2O3, La2O3, SiO2, GeO2, Nb2O5, Bi2O3, TeO2, preferably in amount less than 11.5 weight per cent. Instead of oxides, the corresponding carbonates or hydrates may be used. The glass has a high value for the partial dispersion rato PFD = NF-ND where NF and ND are the respective R.I.'s at 4861<\>rA and for the sodium D line.
GB2598165A 1965-06-18 1965-06-18 Glass composition Expired GB1094538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0082467 1965-06-18

Publications (1)

Publication Number Publication Date
GB1094538A true GB1094538A (en) 1967-12-13

Family

ID=6981515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2598165A Expired GB1094538A (en) 1965-06-18 1965-06-18 Glass composition

Country Status (2)

Country Link
DE (1) DE1496064A1 (en)
GB (1) GB1094538A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7396787B2 (en) 2004-01-16 2008-07-08 Schott Ag Optical glass and process for making precise-pressed optical elements therefrom as well as said optical elements
US8523141B2 (en) 2008-04-24 2013-09-03 Cameron International Corporation Control valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7396787B2 (en) 2004-01-16 2008-07-08 Schott Ag Optical glass and process for making precise-pressed optical elements therefrom as well as said optical elements
US8523141B2 (en) 2008-04-24 2013-09-03 Cameron International Corporation Control valve
US9145981B2 (en) 2008-04-24 2015-09-29 Cameron International Corporation Control valve

Also Published As

Publication number Publication date
DE1496064A1 (en) 1969-02-20

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