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Title:
ELECTRET MATERIAL, MANUFACTURING METHOD THEREOF, AND ELECTROSTATIC ACOUSTIC TRANSDUCER
Document Type and Number:
Japanese Patent JP2010258562
Kind Code:
A
Abstract:

To provide a method for manufacturing an electret material which improves the adhesion between a resin layer to be an electret layer and an electrode plate.

The method for manufacturing an electret material includes: applying dispersing liquid which contains polytetrafluoroethylene particles and also contains 10 to 300 pt.wt. of polyether ether ketone particles in 100 pt.wt. of the polytetrafluoroethylene particles on the electrode plate and then drying the dispersing liquid; and further, burning the polytetrafluoroethylene particles and the polyether ether ketone particles to form a mixed resin layer on the electrode plate. After that, electrification processing is applied to the surface of the mixed resin layer.


Inventors:
Takaoka, Seiichi
Application Number:
JP2009000103859
Publication Date:
November 11, 2010
Filing Date:
April 22, 2009
Export Citation:
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Assignee:
NITTO DENKO CORP
International Classes:
H04R31/00; H01G7/02; H04R19/01
Attorney, Agent or Firm:
鎌田 耕一
麻生 紀明