GB1005459A - Improved resistor element - Google Patents
Improved resistor elementInfo
- Publication number
- GB1005459A GB1005459A GB84664A GB84664A GB1005459A GB 1005459 A GB1005459 A GB 1005459A GB 84664 A GB84664 A GB 84664A GB 84664 A GB84664 A GB 84664A GB 1005459 A GB1005459 A GB 1005459A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductive particles
- carbon black
- particles
- polyethylene
- whilst
- 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
- 239000002245 particle Substances 0.000 abstract 7
- -1 e.g Substances 0.000 abstract 6
- 239000006229 carbon black Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 239000004698 Polyethylene Substances 0.000 abstract 2
- 229920000573 polyethylene Polymers 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229920002367 Polyisobutene Polymers 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 150000001336 alkenes Chemical class 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000012815 thermoplastic material Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
- H01C7/027—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient consisting of conducting or semi-conducting material dispersed in a non-conductive organic material
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polymerisation Methods In General (AREA)
Abstract
A mixture of a thermoplastic material, e.g, polyethylene, polypropylene, polyisobutylene. polytetrafluoroethylene or polymonochlorotrifluoroethylene, and conductive particles is used as an electrical resistor. The conductive particles may be carbon black, graphite, Fe, Cu, Cr, Ti, W, Pt metals, B, Si, Ag, Au or Al. The conductive particles may be of size 0.003-1.0m whilst they may compose 25-75% of the composition whilst the remainder of the composition is a plastics material having an expansion efficient of at least 3 times greater than the conductive particles The resistor may be constructed by compressing the conductive particles together with a catalyst and feeding the monomer to the particles, thus allowing polymerization in situ around the particles. Another embodiment utilizes a partially polymerized olefin which is mixed with carbon black, compressed and further polymerized. To control the quality of the product, the resistance may be continuously monitored. In specific embodiments carbon black is dispersed in polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB84664A GB1005459A (en) | 1964-01-08 | 1964-01-08 | Improved resistor element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB84664A GB1005459A (en) | 1964-01-08 | 1964-01-08 | Improved resistor element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1005459A true GB1005459A (en) | 1965-09-22 |
Family
ID=9711480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB84664A Expired GB1005459A (en) | 1964-01-08 | 1964-01-08 | Improved resistor element |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1005459A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3434349A (en) * | 1965-10-24 | 1969-03-25 | Gen Electric | Electronic clinical thermometer |
| DE2426348A1 (en) * | 1973-05-30 | 1974-12-12 | Matsushita Electric Ind Co Ltd | OVER TEMPERATURE AND OVERCURRENT RESISTANCE FUSE |
| JPS5598801A (en) * | 1978-12-01 | 1980-07-28 | Raychem Corp | Electric device |
| US4329726A (en) | 1978-12-01 | 1982-05-11 | Raychem Corporation | Circuit protection devices comprising PTC elements |
| US4413301A (en) | 1980-04-21 | 1983-11-01 | Raychem Corporation | Circuit protection devices comprising PTC element |
| US4475138A (en) * | 1980-04-21 | 1984-10-02 | Raychem Corporation | Circuit protection devices comprising PTC element |
| GB2220210A (en) * | 1985-11-25 | 1990-01-04 | Donald James Highgate | Improvements to hydrophilic materials |
-
1964
- 1964-01-08 GB GB84664A patent/GB1005459A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3434349A (en) * | 1965-10-24 | 1969-03-25 | Gen Electric | Electronic clinical thermometer |
| DE2426348A1 (en) * | 1973-05-30 | 1974-12-12 | Matsushita Electric Ind Co Ltd | OVER TEMPERATURE AND OVERCURRENT RESISTANCE FUSE |
| JPS5598801A (en) * | 1978-12-01 | 1980-07-28 | Raychem Corp | Electric device |
| US4329726A (en) | 1978-12-01 | 1982-05-11 | Raychem Corporation | Circuit protection devices comprising PTC elements |
| JPH0151041B2 (en) * | 1978-12-01 | 1989-11-01 | Raychem Corp | |
| US4413301A (en) | 1980-04-21 | 1983-11-01 | Raychem Corporation | Circuit protection devices comprising PTC element |
| US4475138A (en) * | 1980-04-21 | 1984-10-02 | Raychem Corporation | Circuit protection devices comprising PTC element |
| GB2220210A (en) * | 1985-11-25 | 1990-01-04 | Donald James Highgate | Improvements to hydrophilic materials |
| GB2220210B (en) * | 1985-11-25 | 1990-05-23 | Donald James Highgate | Improvements to hydrophilic materials |
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