Title:
BROADBAND ELECTROMAGNETIC WAVE ABSORBENT AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2010/119593
Kind Code:
A1
Abstract:
Disclosed is an electromagnetic wave absorbent which exhibits high electromagnetic wave absorption performance over a wide band. The electromagnetic wave absorbent contains a conductive fiber sheet which is obtained by coating a fiber sheet base with a conductive polymer and has a surface resistivity within a specific range. The conductive fiber sheet is formed by impregnating a fiber sheet base such as a nonwoven fabric with an aqueous oxidant solution that contains a dopant, and then bringing the resulting fiber sheet base into contact with a gaseous monomer for a conductive polymer, so that the monomer is oxidatively polymerized thereon.
Inventors:
EGAMI YOSHIHIRO (JP)
SUZUKI KUNIO (JP)
TSUDUKI TAKAO (JP)
SUZUKI KUNIO (JP)
TSUDUKI TAKAO (JP)
Application Number:
PCT/JP2009/071744
Publication Date:
October 21, 2010
Filing Date:
December 28, 2009
Export Citation:
Assignee:
TAYCA CORP (JP)
EGAMI YOSHIHIRO (JP)
SUZUKI KUNIO (JP)
TSUDUKI TAKAO (JP)
EGAMI YOSHIHIRO (JP)
SUZUKI KUNIO (JP)
TSUDUKI TAKAO (JP)
International Classes:
H05K9/00; B32B5/26; C08J7/16; H01Q17/00
Foreign References:
| JPS58169997A | 1983-10-06 | |||
| JPH06104093A | 1994-04-15 | |||
| JPH09331183A | 1997-12-22 | |||
| JP2006156750A | 2006-06-15 | |||
| JP2007169824A | 2007-07-05 | |||
| JP2986857B2 | 1999-12-06 | |||
| JP2007169824A | 2007-07-05 | |||
| US4604427A | 1986-08-05 | |||
| US4521450A | 1985-06-04 | |||
| US4617228A | 1986-10-14 |
Other References:
See also references of EP 2421351A4
Attorney, Agent or Firm:
AKAOKA Michio et al. (JP)
Michio Akaoka (JP)
Michio Akaoka (JP)
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