GB462440A - Improvements in or relating to methods of rendering glass resistant to metal-vapours - Google Patents
Improvements in or relating to methods of rendering glass resistant to metal-vapoursInfo
- Publication number
- GB462440A GB462440A GB21450/36A GB2145036A GB462440A GB 462440 A GB462440 A GB 462440A GB 21450/36 A GB21450/36 A GB 21450/36A GB 2145036 A GB2145036 A GB 2145036A GB 462440 A GB462440 A GB 462440A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- metal
- per cent
- oxide
- vapour
- 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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
- C03C17/27—Oxides by oxidation of a coating previously applied
-
- 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
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/229—Non-specific enumeration
-
- 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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/15—Deposition methods from the vapour phase
- C03C2218/151—Deposition methods from the vapour phase by vacuum evaporation
-
- 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
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/32—After-treatment
- C03C2218/322—Oxidation
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)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
462,440. Treating glass surfaces. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 4,1936, No. 21450. Convention date, Aug. 6, 1935. [Class 56] [Also in Group XL] A method of rendering glass resistant to attack by metal vapour consists in coating it with a film of alkali oxide, alkaline earth oxide, or alumina. Preferably, the coating is composed of the oxide of the metal from which the glass is to be protected. The film may be formed by bringing the glass into contact with the vapour of the metal, and then heating the glass until a diffusion of the metal into, and absorption by, the surface of glass takes place. Finally, the deposited metal is oxidized, e.g. by supplying an atmosphere containing oxygen to the glass. A glass consisting of 60 per cent of silica, 20 per cent of sodium oxide, 10 per cent of calcium oxide, and 10 per cent of boron trioxide may be rendered suitable for the envelope of a sodium metal vapour lamp. Similarly, a glass consisting of 57 per cent of silica, 20 per cent of calcium oxide, and 23 per cent of alumina may be rendered suitable for use as a magnesium vapour discharge tube. Barium and beryllium oxides can be used also for the coating. Specification 455,945 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE462440X | 1935-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB462440A true GB462440A (en) | 1937-03-09 |
Family
ID=6539984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21450/36A Expired GB462440A (en) | 1935-08-06 | 1936-08-04 | Improvements in or relating to methods of rendering glass resistant to metal-vapours |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB462440A (en) |
-
1936
- 1936-08-04 GB GB21450/36A patent/GB462440A/en not_active Expired
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