GB496333A - Improvements in and relating to insulating materials - Google Patents
Improvements in and relating to insulating materialsInfo
- Publication number
- GB496333A GB496333A GB33072/37A GB3307237A GB496333A GB 496333 A GB496333 A GB 496333A GB 33072/37 A GB33072/37 A GB 33072/37A GB 3307237 A GB3307237 A GB 3307237A GB 496333 A GB496333 A GB 496333A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- insulating materials
- oil
- pine wood
- filler
- 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
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/32—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes natural resins
-
- 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
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
An electric insulating composition comprises a mixture of resinous pine wood pitch extracted from pine wood by means of solvent, and an inorganic filler such as quartz, flint, slate, magnesia and alumina. The proportions may be 50 to 60 per cent of filler and the remainder resin. The composition is resistant to oil and is particularly suitable for use in oil-filled equipment.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US496333XA | 1936-12-04 | 1936-12-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB496333A true GB496333A (en) | 1938-11-29 |
Family
ID=21960854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33072/37A Expired GB496333A (en) | 1936-12-04 | 1937-11-30 | Improvements in and relating to insulating materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB496333A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4022635A (en) * | 1975-09-17 | 1977-05-10 | General Electric Company | Modified asphaltite potting composition |
-
1937
- 1937-11-30 GB GB33072/37A patent/GB496333A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4022635A (en) * | 1975-09-17 | 1977-05-10 | General Electric Company | Modified asphaltite potting composition |
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