ES332637A2 - The method of manufacturing an electret. (Machine-translation by Google Translate, not legally binding) - Google Patents
The method of manufacturing an electret. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES332637A2 ES332637A2 ES0332637A ES332637A ES332637A2 ES 332637 A2 ES332637 A2 ES 332637A2 ES 0332637 A ES0332637 A ES 0332637A ES 332637 A ES332637 A ES 332637A ES 332637 A2 ES332637 A2 ES 332637A2
- Authority
- ES
- Spain
- Prior art keywords
- electret
- forming material
- temperature
- translation
- machine
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 230000005684 electric field Effects 0.000 abstract 3
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004017 vitrification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
- H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Artificial Filaments (AREA)
- Filtering Materials (AREA)
Abstract
Improvements introduced in the object of the main patent nº 308.344, issued on February 20, 1965. by: "The method of making an electret", characterized in that they comprise the heating of an electret-forming material at a temperature which is above the vitrification temperature and below the softening point of said electret-forming material until a substantially uniform temperature is obtained through said material, by subjecting said electret-forming material to an electric field maintained at between about 0.001 to 1000 kilovolts per centimeter, while maintaining said temperature for a period of between about 1 microseconde to 12 hours or more, and then cooling said electret-forming material to a temperature below about 30º C, while maintaining said electret-forming material in said electric field, and then removing said electret-forming material from said electric field. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50398365A | 1965-10-23 | 1965-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES332637A2 true ES332637A2 (en) | 1967-12-01 |
Family
ID=24004358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0332637A Expired ES332637A2 (en) | 1965-10-23 | 1966-10-22 | The method of manufacturing an electret. (Machine-translation by Google Translate, not legally binding) |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT291404B (en) |
| BE (1) | BE688615A (en) |
| CH (1) | CH498479A (en) |
| ES (1) | ES332637A2 (en) |
| GB (1) | GB1135413A (en) |
| LU (1) | LU52224A1 (en) |
| NL (1) | NL6614505A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5946112B2 (en) * | 1975-12-29 | 1984-11-10 | 三菱油化株式会社 | Atsudenzairiyo |
| NL7907539A (en) * | 1979-10-11 | 1981-04-14 | Tno | METHOD FOR MANUFACTURING ELECTRETS |
-
1966
- 1966-10-14 NL NL6614505A patent/NL6614505A/xx unknown
- 1966-10-19 GB GB4676766A patent/GB1135413A/en not_active Expired
- 1966-10-20 BE BE688615D patent/BE688615A/xx unknown
- 1966-10-21 CH CH1528866A patent/CH498479A/en not_active IP Right Cessation
- 1966-10-21 LU LU52224D patent/LU52224A1/xx unknown
- 1966-10-22 ES ES0332637A patent/ES332637A2/en not_active Expired
- 1966-11-20 AT AT979066A patent/AT291404B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL6614505A (en) | 1967-04-24 |
| CH498479A (en) | 1970-10-31 |
| GB1135413A (en) | 1968-12-04 |
| BE688615A (en) | 1967-03-31 |
| AT291404B (en) | 1971-06-15 |
| LU52224A1 (en) | 1966-12-21 |
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