GB596792A - Improvements in electric condensers and in vitreous compositions, particularly for use therein and in electrical insulation - Google Patents
Improvements in electric condensers and in vitreous compositions, particularly for use therein and in electrical insulationInfo
- Publication number
- GB596792A GB596792A GB23793/44A GB2379344A GB596792A GB 596792 A GB596792 A GB 596792A GB 23793/44 A GB23793/44 A GB 23793/44A GB 2379344 A GB2379344 A GB 2379344A GB 596792 A GB596792 A GB 596792A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- vitreous
- electrical insulation
- sro
- vitreous compositions
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
- H01B3/087—Chemical composition of glass
-
- 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
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (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)
- Inorganic Insulating Materials (AREA)
Abstract
596,792. Vitreous compositions. IMPERIAL CHEMICAL INDUSTRIES. Ltd. Nov. 29, 1944, No. 23793. Convention date, Oct. 4, 1943. [Class 56] A vitreous composition suitable particularly for use as dielectric material for condensers such as those described and claimed in Specification 596,791, [Group IV], and for the manufacture of electrical insulators, comprises 40-55 per cent PbO, 20-30 per cent SiO2, 1-4 per cent F, 1-10 per cent MgO and 1-10 per cent of one or more of the oxides of lithium, sodium and potassium. The K,O may be present up to 10 per cent, but the M2O should not exceed 5 per cent nor the Li2O 3 per cent. 1-15 per cent of SrO is preferably present as well, but 1-10 per cent of ZnO may be used in lieu of or in addition to the SrO. 1-4 per cent of Sb2O3 may also be added. The composition contains no B2O3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US596792XA | 1943-10-04 | 1943-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB596792A true GB596792A (en) | 1948-01-12 |
Family
ID=22024526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23793/44A Expired GB596792A (en) | 1943-10-04 | 1944-11-29 | Improvements in electric condensers and in vitreous compositions, particularly for use therein and in electrical insulation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB596792A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1098059B (en) * | 1955-02-25 | 1961-01-26 | Welwyn Electrical Lab Ltd | Method of making a vitreous dielectric material |
-
1944
- 1944-11-29 GB GB23793/44A patent/GB596792A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1098059B (en) * | 1955-02-25 | 1961-01-26 | Welwyn Electrical Lab Ltd | Method of making a vitreous dielectric material |
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