GB581184A - Improvements in or relating to electric insulating materials and dielectrics - Google Patents
Improvements in or relating to electric insulating materials and dielectricsInfo
- Publication number
- GB581184A GB581184A GB5297/44A GB529744A GB581184A GB 581184 A GB581184 A GB 581184A GB 5297/44 A GB5297/44 A GB 5297/44A GB 529744 A GB529744 A GB 529744A GB 581184 A GB581184 A GB 581184A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- copper
- substantially constant
- conducting material
- metal
- 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
- 239000003989 dielectric material Substances 0.000 title 1
- 239000011810 insulating material Substances 0.000 title 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 6
- 239000004793 Polystyrene Substances 0.000 abstract 4
- 239000004020 conductor Substances 0.000 abstract 4
- 229910052802 copper Inorganic materials 0.000 abstract 4
- 239000010949 copper Substances 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 4
- 229920002223 polystyrene Polymers 0.000 abstract 4
- -1 phenol aldehyde Chemical class 0.000 abstract 3
- 239000004202 carbamide Substances 0.000 abstract 2
- 229920005546 furfural resin Polymers 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
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
- H01B3/44—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 vinyl resins; acrylic resins
- H01B3/442—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 vinyl resins; acrylic resins from aromatic vinyl compounds
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
An insulating and dielectric medium suitable for use with radio currents of different frequencies extending over a range of at least 10 megacycles per second, consists of a mouldable non-conducting material having a metal in a finely-divided state distributed therethrough in a quantity sufficient to endow said composition with a ratio of reactance to resistance of a predetermined value which is substantially constant or increases with the frequency of the current. The metal is preferably copper or silver and the non-conducting material polystyrene, a phenol aldehyde, urea aldehyde or a furfural resin. A mixture of 10 per cent copper powder and 90 per cent polystyrene gives a medium in which the above ratio is substantially constant. If the amount of copper is increased up to 70 per cent, then the above ratio rises with increasing frequency. Reference has been directed by the Comptroller to Specifications 407,602, [Group V], 446,660, [Group VI], 458,505 and 497,689.ALSO:An insulating and dielectric medium suitable for use with radio currents of different frequencies extending over a range of at least 10 megacycles per second, consists of a mouldable non-conducting material having a metal in a finely divided state distributed therethrough in a quantity sufficient to endow said composition with a ratio of reactance to resistance of a pre-determined value which is substantially constant, or increases with the frequency of the current. The metal is preferably copper or silver and the non-conducting material polystyrene, a phenol aldehyde urea aldehyde or a furfural resin. A mixture of 10 per cent. copper powder and 90 per cent. polystyrene gives a medium in which the above ratio is substantially constant. If the amount of copper is increased up to 70 per cent. then the above ratio rises with increasing frequency. Reference has been directed by the Comptroller to Specifications 407,602, 416,660, [Group XX], 458,505 and 497,689, [Group IV].
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US581184XA | 1943-01-29 | 1943-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB581184A true GB581184A (en) | 1946-10-03 |
Family
ID=22014797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5297/44A Expired GB581184A (en) | 1943-01-29 | 1944-03-21 | Improvements in or relating to electric insulating materials and dielectrics |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB581184A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5298194A (en) * | 1989-11-01 | 1994-03-29 | Raychem Limited | Electrically conductive polymer composition |
-
1944
- 1944-03-21 GB GB5297/44A patent/GB581184A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5298194A (en) * | 1989-11-01 | 1994-03-29 | Raychem Limited | Electrically conductive polymer composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2610250A (en) | Electromagnetic-wave energyabsorbing material | |
| US2415036A (en) | Resistance material | |
| US2472801A (en) | Temperature-stable molded resistor | |
| US2597237A (en) | Variable loss paramagnetic cores | |
| GB581184A (en) | Improvements in or relating to electric insulating materials and dielectrics | |
| US2403657A (en) | Insulating and dielectric material | |
| US2550452A (en) | Compound dielectric materials | |
| GB833675A (en) | Electrical de-icing or anti-icing apparatus | |
| US2563520A (en) | Powdered iron core | |
| US2162273A (en) | Insulation of magnetic powder for mass cores, in particular for high frequency purposes | |
| GB631886A (en) | Improvements in or relating to the manufacture of magnetic material | |
| GB577208A (en) | Improvements in or relating to the electric heating of dielectric materials | |
| US2412668A (en) | Magnetic body | |
| GB705521A (en) | Improvements in or relating to electric condensers | |
| US2561495A (en) | High-loss magnetic core for high-frequency coils | |
| US2378160A (en) | Dielectric | |
| GB828233A (en) | Improvements in or relating to electrically conductive non-metallic materials | |
| SU117871A1 (en) | A method of manufacturing a flexible magneto-dielectric | |
| Large | The application of a waveguide feed to a short backfire antenna | |
| JPS5879302A (en) | Resistive terminator | |
| US1394949A (en) | Resistance material | |
| US1576737A (en) | Resinous cement | |
| SU145345A1 (en) | The method of obtaining the press material | |
| Suetake | Application of ferrite to electromagnetic wave absorber and its characteristics | |
| JPS535799A (en) | Insulator materials of electric conductor |