JPS57188432A - Manufacture of high silicate glass with high ultraviolet transmittance - Google Patents

Manufacture of high silicate glass with high ultraviolet transmittance

Info

Publication number
JPS57188432A
JPS57188432A JP7225381A JP7225381A JPS57188432A JP S57188432 A JPS57188432 A JP S57188432A JP 7225381 A JP7225381 A JP 7225381A JP 7225381 A JP7225381 A JP 7225381A JP S57188432 A JPS57188432 A JP S57188432A
Authority
JP
Japan
Prior art keywords
glass
phase
acid
treated
manufacture
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
JP7225381A
Other languages
Japanese (ja)
Other versions
JPS6149256B2 (en
Inventor
Kenji Nakagawa
Hideaki Miyade
Kiyoshi Uchikawa
Masabumi Kanehara
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.)
HOYA GLASS KK
Hoya Corp
Hoya Electronics Corp
Original Assignee
HOYA GLASS KK
Hoya Corp
Hoya Electronics Corp
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 HOYA GLASS KK, Hoya Corp, Hoya Electronics Corp filed Critical HOYA GLASS KK
Priority to JP7225381A priority Critical patent/JPS57188432A/en
Publication of JPS57188432A publication Critical patent/JPS57188432A/en
Publication of JPS6149256B2 publication Critical patent/JPS6149256B2/ja
Granted 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

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 Melting And Manufacturing (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE: To manufacture the titled glass while minimizing the generation of a strain by heat treating borosilicate glass to separate the phase into an acid soluble phase and an acid insoluble phase, treating the phase separated glass with lower and higher concn. mineral acids in 2 stages, and calcining the treated glass,
CONSTITUTION: Borosilicate glass contg. SiO2, B2O3 and Na2O as principal components is heated treated to separate the phase into an acid soluble phase rich in B2O3 and Na2O and an acid insoluble phase rich in SiO2. The phase separated glass is treated with ≤2.5 N mineral acid in the 1st stage to dissolve the acid soluble phase. At this time, by regulating the concn. of the used mineral acid in accordance with the thickness of the glass molding, the quantity of a strain is reduced. The resulting porous glass is further treated with ≥2.5N mineral acid to remove the ultraviolet absorbing component remaining in the glass. After finishing the 2nd stage, the porous glass is calcined by an ordinary method to manufacuture high silicate glass with high ultraviolet transmittance.
COPYRIGHT: (C)1982,JPO&Japio
JP7225381A 1981-05-15 1981-05-15 Manufacture of high silicate glass with high ultraviolet transmittance Granted JPS57188432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7225381A JPS57188432A (en) 1981-05-15 1981-05-15 Manufacture of high silicate glass with high ultraviolet transmittance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7225381A JPS57188432A (en) 1981-05-15 1981-05-15 Manufacture of high silicate glass with high ultraviolet transmittance

Publications (2)

Publication Number Publication Date
JPS57188432A true JPS57188432A (en) 1982-11-19
JPS6149256B2 JPS6149256B2 (en) 1986-10-28

Family

ID=13483939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7225381A Granted JPS57188432A (en) 1981-05-15 1981-05-15 Manufacture of high silicate glass with high ultraviolet transmittance

Country Status (1)

Country Link
JP (1) JPS57188432A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004083145A1 (en) * 2003-03-20 2004-09-30 Japan Science And Technology Agency Process for producing high silicate glass and high silicate glass

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48101409A (en) * 1972-03-02 1973-12-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48101409A (en) * 1972-03-02 1973-12-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004083145A1 (en) * 2003-03-20 2004-09-30 Japan Science And Technology Agency Process for producing high silicate glass and high silicate glass
US7975508B2 (en) 2003-03-20 2011-07-12 Japan Science And Technology Agency Method for producing high silicate glass and high silicate glass

Also Published As

Publication number Publication date
JPS6149256B2 (en) 1986-10-28

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