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JPS5722131A - Production of multilayer gel structure - Google Patents

Production of multilayer gel structure

Info

Publication number
JPS5722131A
JPS5722131A JP9576080A JP9576080A JPS5722131A JP S5722131 A JPS5722131 A JP S5722131A JP 9576080 A JP9576080 A JP 9576080A JP 9576080 A JP9576080 A JP 9576080A JP S5722131 A JPS5722131 A JP S5722131A
Authority
JP
Japan
Prior art keywords
layer
gel
och3
multilayer
solutions
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.)
Granted
Application number
JP9576080A
Other languages
Japanese (ja)
Other versions
JPH0250060B2 (en
Inventor
Makoto Sato
Kenzo Susa
Iwao Matsuyama
Yasuo Suganuma
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9576080A priority Critical patent/JPS5722131A/en
Publication of JPS5722131A publication Critical patent/JPS5722131A/en
Publication of JPH0250060B2 publication Critical patent/JPH0250060B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/12—Other methods of shaping glass by liquid-phase reaction processes
    • 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
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/006—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels to produce glass through wet route
    • 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
    • C03C13/00—Fibre or filament compositions
    • C03C13/04—Fibre optics, e.g. core and clad fibre compositions
    • C03C13/045—Silica-containing oxide glass compositions
    • 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
    • C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)
  • Silicon Compounds (AREA)

Abstract

PURPOSE:Two or more kinds of silica gel-forming solutions or the solutions additionally containing other element compounds are successively hydrolyzed to form gels, thus producing the multilayer gel structure in which each layer well fuses with adjacent other layers and shows high adhesion. CONSTITUTION:A silica gel-forming solution such as a mixture of Si(OCH3)4, methanol and water, is charged in a box-shaped glass vessel to a certain level and made to gel at room temperature to form the fourth layer 25. Then, anothe gel- forming solution, e.g., the same solution as the above except for containing Ge(OCH3)4, is charged on the layer 25 and made to gel to form the third layer 24. In the same manner, the same solutions as the above except the content of Ge(OCH3)4 is changed is made to gel on the layer 24 to form the second layer 23 and the first layer 22 in succession. Further, the remaining substances on gelation is evaporated off from the multilayer gel structure to dry the silica gel, whereby the objective multilayer gel structure is produced.
JP9576080A 1980-07-15 1980-07-15 Production of multilayer gel structure Granted JPS5722131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9576080A JPS5722131A (en) 1980-07-15 1980-07-15 Production of multilayer gel structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9576080A JPS5722131A (en) 1980-07-15 1980-07-15 Production of multilayer gel structure

Publications (2)

Publication Number Publication Date
JPS5722131A true JPS5722131A (en) 1982-02-05
JPH0250060B2 JPH0250060B2 (en) 1990-11-01

Family

ID=14146435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9576080A Granted JPS5722131A (en) 1980-07-15 1980-07-15 Production of multilayer gel structure

Country Status (1)

Country Link
JP (1) JPS5722131A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62297236A (en) * 1986-06-17 1987-12-24 Asahi Glass Co Ltd Production of quartz glass fiber
WO2002034671A1 (en) * 2000-10-24 2002-05-02 Qinetic Limited Solvogels and a method of manufacture of the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54119512A (en) * 1978-04-06 1979-09-17 Mrinmay Samanta Synthetic process for glassy body
JPS54151628A (en) * 1978-05-22 1979-11-29 Hitachi Ltd Production of optical fiber
JPS56155038A (en) * 1980-04-30 1981-12-01 Hitachi Cable Ltd Preparation of base material for optical fiber
JPS577835A (en) * 1980-06-19 1982-01-16 Hitachi Cable Ltd Manufacture of base material for optical fiber

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54119512A (en) * 1978-04-06 1979-09-17 Mrinmay Samanta Synthetic process for glassy body
JPS54151628A (en) * 1978-05-22 1979-11-29 Hitachi Ltd Production of optical fiber
JPS56155038A (en) * 1980-04-30 1981-12-01 Hitachi Cable Ltd Preparation of base material for optical fiber
JPS577835A (en) * 1980-06-19 1982-01-16 Hitachi Cable Ltd Manufacture of base material for optical fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62297236A (en) * 1986-06-17 1987-12-24 Asahi Glass Co Ltd Production of quartz glass fiber
WO2002034671A1 (en) * 2000-10-24 2002-05-02 Qinetic Limited Solvogels and a method of manufacture of the same

Also Published As

Publication number Publication date
JPH0250060B2 (en) 1990-11-01

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