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Title:
CHEMICAL FILTER AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2009226380
Kind Code:
A
Abstract:

To provide a chemical filter whose performance of removing ionic gaseous contaminants can be kept over a long period of time.

The chemical filter is obtained by pleating a nonwoven fabric. The nonwoven fabric is a spunlace nonwoven fabric produced by interlasing fibers by a spunlace method. An ion exchange group is introduced into the fiber by radiation graft polymerization.


Inventors:
IMAI AKIHIRO
TANAHASHI TAKASHI
NAKANO TOSHIAKI
SHIMOTSU TAINEN
Application Number:
JP2008078799A
Publication Date:
October 08, 2009
Filing Date:
March 25, 2008
Export Citation:
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Assignee:
NICHIAS CORP
International Classes:
B01J47/12; A61L9/01; C08J7/18; D04H1/425; D04H1/492; D06J1/00; D06M14/22
Domestic Patent References:
JPH10279713A1998-10-20
JPH06327969A1994-11-29
JP2002028415A2002-01-29
JP2006274464A2006-10-12
Attorney, Agent or Firm:
Kenji Akatsuka
Yasuo Fukuda
Yasuyuki Sakata