Title:
ELECTRET FILTER MEDIUM AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2008221074
Kind Code:
A
Abstract:
To provide an electret filter medium which contains a charge stabilizer, can stably hold charges over a long period of time by using a superfine polymer fiber spun by a charge spinning method, and is excellent in filtering performance, and to provide its manufacturing method.
The electret filter medium containing the charge stabilizer uses the polymer fiber spun by the charge spinning method, with an average fiber diameter of 0.01-1 m.
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Inventors:
Goto, Sadahito
Nakamori, Masahiko
Matsuyama, Kana
Nakamori, Masahiko
Matsuyama, Kana
Application Number:
JP2007000060404
Publication Date:
September 25, 2008
Filing Date:
March 09, 2007
Export Citation:
Assignee:
TOYOBO CO LTD
International Classes:
B01D39/14; B01D39/00; B01D39/16; B03C3/28; D04H1/72; B01D39/14; B01D39/00; B01D39/16; B03C3/00; D04H1/70
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