JPS5617939A - Manufacture of porous glass - Google Patents
Manufacture of porous glassInfo
- Publication number
- JPS5617939A JPS5617939A JP9465379A JP9465379A JPS5617939A JP S5617939 A JPS5617939 A JP S5617939A JP 9465379 A JP9465379 A JP 9465379A JP 9465379 A JP9465379 A JP 9465379A JP S5617939 A JPS5617939 A JP S5617939A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- phase
- soln
- elute
- soft
- 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
Links
Abstract
PURPOSE:To manufacture porous glass having a uniform micropore distribution by dipping phase separated glass having soft phase easy to elute and hard phase free from elution in a hot aqueous soln. contg. a specified component to elute the soft phase. CONSTITUTION:A glass block having a uniform composition such as Na2O-K2O- B2O-3- SiO2 is prepared and phase separated into the above-mentioned soft and hard phases by heat treatment. Phase separated glass 13 is placed on holder 12 of container 11 made of quartz glass or the like. Eluting soln. 14 contg. one of C6 monosaccharides such as sorbitol, dextrose, invert sugar, fructose and mannitol or a complex of boric acid with an alpha-diol type polyol such as glycerol is poured into container 11 inlet 14'. To soln. 14 may be added an alkali such as NH4OH or Na2CO3. The soln. 14 is then heated to about 95 deg.C with heater 18 to elute the soft phase. Thus, porous glass is obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9465379A JPS5617939A (en) | 1979-07-24 | 1979-07-24 | Manufacture of porous glass |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9465379A JPS5617939A (en) | 1979-07-24 | 1979-07-24 | Manufacture of porous glass |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5617939A true JPS5617939A (en) | 1981-02-20 |
Family
ID=14116207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9465379A Pending JPS5617939A (en) | 1979-07-24 | 1979-07-24 | Manufacture of porous glass |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5617939A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4898777A (en) * | 1989-01-24 | 1990-02-06 | Infrared Fiber Systems | High-strength fluoride glass fibers and process of making |
CN103118999A (en) * | 2010-09-30 | 2013-05-22 | 佳能株式会社 | Method for producing porous glass |
-
1979
- 1979-07-24 JP JP9465379A patent/JPS5617939A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4898777A (en) * | 1989-01-24 | 1990-02-06 | Infrared Fiber Systems | High-strength fluoride glass fibers and process of making |
CN103118999A (en) * | 2010-09-30 | 2013-05-22 | 佳能株式会社 | Method for producing porous glass |
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