Electroviscous fluid containing antioxidant and/or corrosion inh

Details Electroviscous fluid containing antioxidant and/or corrosion inh Electroviscous fluid containing antioxidant and/or corrosion inh

1991-11-13

1993-11-30

Skane, Christine

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

252 74, 252 75, 252 77, 252572, C10M17100, C10M16904

Patent

active

052662306

ABSTRACT:
In an electroviscous fluid comprising electrically insulating fluid as the dispersant and porous solid particles as the dispersed phase, at lease one substance selected from acid, salt and base and at least one substance selected from polyhydric alcohol and water, and further containing dispersing agent, antioxidant and/or corrosion inhibitor are added to obtain the better effects such as high responsiveness in wide temperature range up to high temperature, high reproducibility, excellent electroviscous effect and the higher durability.
Therefore, the electroviscous fluid by this invention is useful, for example, for the control systems utilizing viscosity change, and it is capable to increase the control accuracy, particularly in the operation at high temperature.

REFERENCES:
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patent: 3367872 (1968-02-01), Martinek et al.
patent: 3639275 (1972-02-01), Stayner
patent: 3970573 (1976-07-01), Westhaver
patent: 4276184 (1981-06-01), Mandelcorn et al.
patent: 4293433 (1981-10-01), Borror et al.
patent: 4482478 (1984-11-01), Shaw
patent: 4679119 (1987-07-01), Shedigan
patent: 4687589 (1987-08-01), Block et al.
patent: 4744914 (1988-05-01), Filisko et al.
patent: 5075023 (1991-12-01), Fukuyama et al.
Matsepuro, "Structure Formation in an Electric Field and the Composition of Electrorheological Suspension", translated from Elektroreol. Issleo Pril, Minsk, pp. 27-51, 1981.

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