JPS56125240A - Preparation of silica glass - Google Patents
Preparation of silica glassInfo
- Publication number
- JPS56125240A JPS56125240A JP2882080A JP2882080A JPS56125240A JP S56125240 A JPS56125240 A JP S56125240A JP 2882080 A JP2882080 A JP 2882080A JP 2882080 A JP2882080 A JP 2882080A JP S56125240 A JPS56125240 A JP S56125240A
- Authority
- JP
- Japan
- Prior art keywords
- water
- mixture
- ethyl silicate
- silica glass
- ethyl
- 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
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
- 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
Abstract
PURPOSE: To obtain high-purity, crake-free silica glass, by evaporating water from a mixture of specific amounts of ethyl silicate, ethanol and water at a specific rate thereby hydrolyzing and gelating ethyl silicate, and then heating the product at high temperature.
CONSTITUTION: (A) Ethyl silicate, (B) ethyl alcohol and (C) water are mixed together at weight ratios of A:(B+C)=15:85W55:45, and B:C=35:65W95:5, and the pH of the mixture is adjusted at 3W6. The water and the ethyl alcohol in the mixture are evaporated at a rate between about 0.0001 and 0.03g/cm2.day, pref. by leaving at rest in an atmosphere having a definite temperature between 30 and 70°C and a definite relative humidity between 30 and 70%, to hydrolyze and gelate the ethyl silicate. The product is heated at ≥1,100°C to obtain the objective silica glass preventing the generation of cracks of the glass during the manufacturing process.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2882080A JPS56125240A (en) | 1980-03-07 | 1980-03-07 | Preparation of silica glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2882080A JPS56125240A (en) | 1980-03-07 | 1980-03-07 | Preparation of silica glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56125240A true JPS56125240A (en) | 1981-10-01 |
Family
ID=12259030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2882080A Pending JPS56125240A (en) | 1980-03-07 | 1980-03-07 | Preparation of silica glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56125240A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59116135A (en) * | 1982-12-23 | 1984-07-04 | Seiko Epson Corp | Manufacture of quartz glass |
| WO1984002519A1 (en) * | 1982-12-23 | 1984-07-05 | Suwa Seikosha Kk | Process for producing quartz glass |
| JPS59131539A (en) * | 1983-01-18 | 1984-07-28 | Seiko Epson Corp | Production of quartz glass |
| US4579828A (en) * | 1983-12-15 | 1986-04-01 | Becton, Dickinson And Company | Clot activator for serum separation tubes |
-
1980
- 1980-03-07 JP JP2882080A patent/JPS56125240A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59116135A (en) * | 1982-12-23 | 1984-07-04 | Seiko Epson Corp | Manufacture of quartz glass |
| WO1984002519A1 (en) * | 1982-12-23 | 1984-07-05 | Suwa Seikosha Kk | Process for producing quartz glass |
| JPS64331B2 (en) * | 1982-12-23 | 1989-01-06 | Seiko Epson Corp | |
| US4801318A (en) * | 1982-12-23 | 1989-01-31 | Seiko Epson Corporation | Silica glass formation process |
| JPS59131539A (en) * | 1983-01-18 | 1984-07-28 | Seiko Epson Corp | Production of quartz glass |
| US4579828A (en) * | 1983-12-15 | 1986-04-01 | Becton, Dickinson And Company | Clot activator for serum separation tubes |
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