GB992899A - A method of treating alkali glasses - Google Patents

A method of treating alkali glasses

Info

Publication number
GB992899A
GB992899A GB1668/64A GB166864A GB992899A GB 992899 A GB992899 A GB 992899A GB 1668/64 A GB1668/64 A GB 1668/64A GB 166864 A GB166864 A GB 166864A GB 992899 A GB992899 A GB 992899A
Authority
GB
United Kingdom
Prior art keywords
sulphate
treating alkali
alkali glasses
weight
comptroller
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
GB1668/64A
Inventor
Oleg Konstantinovich Botvinkin
Oleg Nikolaevich Denisenko
Mikhail Alekseevich Tsaritsyn
Anastasia Ivanovna Proshkina
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.)
GNI SKY I STEKLA
Original Assignee
GNI SKY I STEKLA
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
Priority to FR954381A priority Critical patent/FR1375403A/en
Application filed by GNI SKY I STEKLA filed Critical GNI SKY I STEKLA
Priority to GB1668/64A priority patent/GB992899A/en
Publication of GB992899A publication Critical patent/GB992899A/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
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions

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

Alkali glass is treated in a molten mass containing lithium sulphate and potassium sulphate in the weight ratio of 3: 1 and 0.5 to 5.0 per cent by weight of the hydrogen sulphate of an alkali metal at a temperature near its softening point (between 560 DEG and 700 DEG C.). Treatment in this manner improves the mechanical strength and resistance to thermal shock. Reference has been directed by the Comptroller to Specification 786,951.
GB1668/64A 1964-01-14 1964-01-14 A method of treating alkali glasses Expired GB992899A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR954381A FR1375403A (en) 1964-01-14 1963-11-20 Treatment process for alkaline glass parts
GB1668/64A GB992899A (en) 1964-01-14 1964-01-14 A method of treating alkali glasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1668/64A GB992899A (en) 1964-01-14 1964-01-14 A method of treating alkali glasses

Publications (1)

Publication Number Publication Date
GB992899A true GB992899A (en) 1965-05-26

Family

ID=9725980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1668/64A Expired GB992899A (en) 1964-01-14 1964-01-14 A method of treating alkali glasses

Country Status (2)

Country Link
FR (1) FR1375403A (en)
GB (1) GB992899A (en)

Also Published As

Publication number Publication date
FR1375403A (en) 1964-10-16

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