GB258872A - Improvements in low expansion glass - Google Patents
Improvements in low expansion glassInfo
- Publication number
- GB258872A GB258872A GB23272/26A GB2327226A GB258872A GB 258872 A GB258872 A GB 258872A GB 23272/26 A GB23272/26 A GB 23272/26A GB 2327226 A GB2327226 A GB 2327226A GB 258872 A GB258872 A GB 258872A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- expansion glass
- low expansion
- proportion
- oxide
- 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.)
- Expired
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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
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 Compositions (AREA)
Abstract
258,872. Soc. la Radiotechnique. Sept. 22, 1925, [Convention date]. Production of metal.-In a low-expansion glass containing silica, boric oxide, and sodium oxide, the weights of boric oxide and sodium oxide in the finished glass are in the proportion of 85 to 15, the proportion of silica preferably being less than 70 per cent. The glass is stated to be more easily fusible than glasses of a similar character, and to be particularly suitable for the construction of electrical apparatus.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR505782X | 1925-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB258872A true GB258872A (en) | 1927-01-13 |
Family
ID=8908704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23272/26A Expired GB258872A (en) | 1925-09-22 | 1926-09-21 | Improvements in low expansion glass |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE505782C (en) |
| FR (1) | FR615337A (en) |
| GB (1) | GB258872A (en) |
| NL (1) | NL23938C (en) |
-
0
- NL NL23938D patent/NL23938C/xx active
-
1925
- 1925-09-22 FR FR615337D patent/FR615337A/en not_active Expired
-
1926
- 1926-09-21 GB GB23272/26A patent/GB258872A/en not_active Expired
- 1926-09-22 DE DES76270D patent/DE505782C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL23938C (en) | |
| FR615337A (en) | 1927-01-05 |
| DE505782C (en) | 1930-08-22 |
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