Title:
ELECTROVISCOUS LIQUID
Document Type and Number:
Japanese Patent JPH08253788
Kind Code:
A
Abstract:
PURPOSE: To obtain an electroviscous liquid which highly rapidly becomes viscous in a wide temp. range upon application of a DC or AC electric field, is reduced in power consumption, and can retain the electroviscous properties over long.
CONSTITUTION: The liquid comprises 1-60wt.% fine carbonaceous particles having an average particle diameter of 0.01-100μm as a dispersed phase and 99-40wt.% insulating oil having a viscosity at room temp. of 0.65-500cSt as a liquid phase. The particles have a carbon content of desirably 80-97wt.%, preferably 90-95wt.% and a C/H ratio (carbon/hydrogen atom ratio) of desirably 1.2-5, preferably 2-4.
Inventors:
ISHINO YUICHI
OSAKI TOSHIYUKI
ENDO SHIGEKI
TOMITA SEISUKE
MARUYAMA TAKAYUKI
FUKUYAMA YOSHIKI
SAITO TASUKU
OSAKI TOSHIYUKI
ENDO SHIGEKI
TOMITA SEISUKE
MARUYAMA TAKAYUKI
FUKUYAMA YOSHIKI
SAITO TASUKU
Application Number:
JP9723696A
Publication Date:
October 01, 1996
Filing Date:
April 19, 1996
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
C10M125/02; C10M169/04; C10N20/02; C10N20/06; C10N40/14; (IPC1-7): C10M169/04; C10M125/02
Domestic Patent References:
| JPH0347896A | 1991-02-28 | |||
| JPS6397694A | 1988-04-28 | |||
| JPS646093A | 1989-01-10 |
Attorney, Agent or Firm:
Shoji Aoma