JPS56149341A - Manufacture of porous glass body - Google Patents

Manufacture of porous glass body

Info

Publication number
JPS56149341A
JPS56149341A JP5460280A JP5460280A JPS56149341A JP S56149341 A JPS56149341 A JP S56149341A JP 5460280 A JP5460280 A JP 5460280A JP 5460280 A JP5460280 A JP 5460280A JP S56149341 A JPS56149341 A JP S56149341A
Authority
JP
Japan
Prior art keywords
glass
al2o3
sio2
manufacture
glass body
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.)
Pending
Application number
JP5460280A
Other languages
Japanese (ja)
Inventor
Shiro Kurosaki
Minoru Watanabe
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP5460280A priority Critical patent/JPS56149341A/en
Publication of JPS56149341A publication Critical patent/JPS56149341A/en
Pending 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
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/008—Other surface treatment of glass not in the form of fibres or filaments comprising a lixiviation step
    • 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
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/0095—Solution impregnating; Solution doping; Molecular stuffing, e.g. of porous 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)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE:To manufacture a porous SiO2 glass body contg. a little Al2O3 and having high porosity by molding molten R2O-Al2O3-P2O5-SiO2 glass having a specified composition, heat treating the molding to cause phase separation, and carrying out leaching with hot water or a hot dil. acid. CONSTITUTION:Said molten glass having a composition consisting of, by wt., 25- 75% SiO2, 2-20% Al2O3, 3-30% P2O5 and 5-20% R2O (R is Li, Na, K or Cs) is prepared so as to adjust the molar ratio of Al2O3/P2O5 to 1/0.8-1/1.2 and that of R2O/(SiO2+1/2Al2O3+P2O5) to 0.05-0.20. The glass is melted in a crucible, molded into the desired shape, and heat-treated at 500-600 deg.C to cause phase separation. The phase separated glass is then treated with a hot acid such as 1- 3NHCl like a conventional method to leach the soft phase, and it is washed with hot water to manufacture the desired porous glass body.
JP5460280A 1980-04-23 1980-04-23 Manufacture of porous glass body Pending JPS56149341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5460280A JPS56149341A (en) 1980-04-23 1980-04-23 Manufacture of porous glass body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5460280A JPS56149341A (en) 1980-04-23 1980-04-23 Manufacture of porous glass body

Publications (1)

Publication Number Publication Date
JPS56149341A true JPS56149341A (en) 1981-11-19

Family

ID=12975273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5460280A Pending JPS56149341A (en) 1980-04-23 1980-04-23 Manufacture of porous glass body

Country Status (1)

Country Link
JP (1) JPS56149341A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925141A1 (en) * 1989-07-28 1991-01-31 Toyo Kohan Co Ltd METHOD FOR PRODUCING STEEL SHEETS LAMINATED WITH A POLYESTER RESIN FILM
WO2014085608A1 (en) * 2012-11-30 2014-06-05 Corning Incorporated Methods for glass strengthening

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925141A1 (en) * 1989-07-28 1991-01-31 Toyo Kohan Co Ltd METHOD FOR PRODUCING STEEL SHEETS LAMINATED WITH A POLYESTER RESIN FILM
DE3925141C2 (en) * 1989-07-28 1998-04-30 Toyo Kohan Co Ltd Process for the production of objects, in particular cans from surface-treated steel sheet
WO2014085608A1 (en) * 2012-11-30 2014-06-05 Corning Incorporated Methods for glass strengthening

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