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Patent Searching and Data


Title:
ELECTRO CONDUCTIVE URETHANE ELASTOMER-FORMING COMPOSITION
Document Type and Number:
Japanese Patent JPH0532755
Kind Code:
A
Abstract:
PURPOSE:To obtain the title composition with good heat resistance, to be used for connector elements, etc., by dispersing electrically conductive particles in a component containing both polycarbonate diol and polyisocyanate compound and capable of forming a urethane elastomer by reaction between them. CONSTITUTION:The objective composition can be obtained by dispersing in (A) 100 pts.wt. of a component containing (1) a polyol compound >=50wt.% in polycarbonate dial content and (2) a polyisocyanate compound and capable of forming a urethane elastomer by urethanation between the above components 1 and 2 (B) 30-1000 pts.wt. of electro conductive particles. The present composition is applied on lead electrodes to form the electrically conductive part 21 of a connector layer 20, and the component A is applied on the area other than said lead electrodes to form an electrical insulating part 22; using a magnetic pole plate 30 with flat lower surface made up of ferromagnetic material M and nonmagnetic material N, and the lower surface is brought into contact with the connector layer 20 and then unified with a circuit substrate 10 by a top force 31 and bottom force 32, thus forming a connector element.

Inventors:
IGARASHI HISAO
YASUDA TADASHI
CHIBA HIDEKI
MATSUKI YASUO
Application Number:
JP5363591A
Publication Date:
February 09, 1993
Filing Date:
February 27, 1991
Export Citation:
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Assignee:
SOKEN INTERNATL KK
International Classes:
C08G18/44; C08G18/42; C08K3/08; C08L75/00; C08L75/04; H01B1/22; H01R11/01; (IPC1-7): C08G18/44; C08K3/08; C08L75/04; H01B1/22; H01R11/01
Attorney, Agent or Firm:
Masahiko Oi