Title:
CONDUCTIVE FOAMED MATERIAL AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2004/094512
Kind Code:
A1
Abstract:
A conductive foamed material of low cost that exhibits uniform conductivity and is strikingly improved with respect to changing of conductivity by temperature and humidity. In particular, a conductive foamed material produced by adding to an epichlorohydrin rubber a rubber capable of co-crosslinking with the epichlorohydrin rubber, a foaming agent and an ionic compound and foaming the mixture; or a conductive foamed material produced by foaming so as to have properties such as a hardness of 15 to 50, a volume resistivity value of 1×104 to 1×1010 &ohm ·cm and an environmental dependency (formula: log Rl - log Rh) of -1.0 to 2.0. There is further provided a process for producing the conductive foamed material, comprising milling an epichlorohydrin rubber with an ionic compound, further milling the mixture with additives and effecting foaming thereof.
Inventors:
OBATA KAZUO
TAKAGI MASAAKI
MEGURO YOSHIO
TAKAGI MASAAKI
MEGURO YOSHIO
Application Number:
PCT/JP2004/005797
Publication Date:
November 04, 2004
Filing Date:
April 22, 2004
Export Citation:
Assignee:
YUKIGAYA KAGAKU KOGYO KABUSHIK (JP)
International Classes:
G03G21/06; C08J9/06; C08K3/16; C08L71/03; G03G15/00; G03G15/02; G03G15/08; G03G15/16; H01B1/12; (IPC1-7): C08J9/06
Foreign References:
| JP2002244452A | 2002-08-30 | |||
| JP2001072806A | 2001-03-21 | |||
| JPH05117434A | 1993-05-14 | |||
| JPH0728301A | 1995-01-31 | |||
| JPH0815951A | 1996-01-19 | |||
| JP2004069980A | 2004-03-04 |
Attorney, Agent or Firm:
Fujisawa, Noriaki (No. 5-11 Nihonbashihoncho 3-chom, Chuo-ku Tokyo, JP)
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