Title:
ELECTRET AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2006291045
Kind Code:
A
Abstract:
To provide a polymer electret having high trap charge density even at normal or high temperature and excellent charge (polarization) retention of the trap charge density, soluble in organic solvents and widely meeting general commercial uses and provide a method for producing the electret.
The electret is composed of a resin composition containing a block copolymer exhibiting micro-phase separation structure.
Inventors:
SATO TSUTOMU
UENO YASUNOBU
TOMURA TATSUYA
NOGUCHI SO
UENO YASUNOBU
TOMURA TATSUYA
NOGUCHI SO
Application Number:
JP2005113991A
Publication Date:
October 26, 2006
Filing Date:
April 11, 2005
Export Citation:
Assignee:
RICOH KK
International Classes:
C08G81/00; B01D39/14; B01D39/16; B03C3/28; C08F297/00
Domestic Patent References:
| JPH0473202A | 1992-03-09 | |||
| JPS6261311A | 1987-03-18 | |||
| JPS55129446A | 1980-10-07 | |||
| JP2002167413A | 2002-06-11 | |||
| JP2003129330A | 2003-05-08 | |||
| JP2006161261A | 2006-06-22 | |||
| JP2005041931A | 2005-02-17 | |||
| JP2000167434A | 2000-06-20 | |||
| JP2001278932A | 2001-10-10 | |||
| JP2004517682A | 2004-06-17 | |||
| JP2005171100A | 2005-06-30 |
Foreign References:
| WO2001081474A1 | 2001-11-01 |
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