Title:
ELECTRET
Document Type and Number:
Japanese Patent JPS5637620
Kind Code:
A
Abstract:
A process for preparing polymer electrets comprising the following steps: (a) providing two electrodes in a deposition zone, said electrodes being in a spaced relationship to one another, having opposing surfaces, and being connected to an external voltage source capable of impressing an intense electric field between the opposing surfaces; (b) providing a dipolar substituted p-xylylene monomer vapor in sufficient amount to coat the opposing surfaces of the electrodes; (c) activating the power source; and (d) introducing the vapor from step (b) into the deposition zone, said zone being under vacuum and at a temperature at which the vapor will condense, whereby the vapor condenses on the opposing surfaces of the electrodes, the monomer polymerizing to parylene, coating said surfaces, and forming electrets.
More Like This:
| WO/2013/129142 | CELLULAR RESIN SHEET FOR PIEZOELECTRIC ELEMENT AND PROCESS FOR PRODUCING SAME |
| WO/2010/119869 | PROCESS FOR PRODUCTION OF ELECTRET MATERIAL |
| WO/1997/039464 | THIN FILM ELECTRET MICROPHONE |
Inventors:
UIRIAMU FUREDERITSUKU BIICHI
DENISU MAIKERU MAHONII
DENISU MAIKERU MAHONII
Application Number:
JP12123880A
Publication Date:
April 11, 1981
Filing Date:
September 03, 1980
Export Citation:
Assignee:
UNION CARBIDE CORP
International Classes:
H01G7/02; (IPC1-7): H01G7/02
Foreign References:
| US3246627A | 1966-04-19 |