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Title:
CHEMICAL FILTER AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2010063959
Kind Code:
A
Abstract:

To provide a chemical filter which has a filter medium with high strength and maintains performance of removing ionic gaseous pollutants for a long period of time.

The chemical filter is obtained by processing a filter medium for the chemical filter. The filter medium for the chemical filter is a woven or non-woven fabric comprising organic fibers having a hydroxyl group. A cation exchange group is introduced into the organic fibers having a hydroxyl group by radiation graft polymerization. The ion exchange capacity of the cation exchange group of the filter medium for the chemical filter is 400 meq/m2 or higher. The filter medium for the chemical filter has a tensile strength of 5-20 N/15 mm.


Inventors:
Imai, Akihiro
Tanahashi, Takashi
Nakano, Toshiaki
Shimotsu, Tainen
Ishiwatari, Shiro
Shimonosono, Takashi
Application Number:
JP2008000230694
Publication Date:
March 25, 2010
Filing Date:
September 09, 2008
Export Citation:
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Assignee:
NICHIAS CORP
International Classes:
B01J39/22; B01J20/24; B01J20/26; B01J47/12; D06M14/22; D06M15/285



 
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