Compositions – Heat-exchange – low-freezing or pour point – or high boiling... – Organic components
Patent
1996-04-26
1998-05-05
Skane, Christine
Compositions
Heat-exchange, low-freezing or pour point, or high boiling...
Organic components
252 73, 252572, C10M17100
Patent
active
057469342
ABSTRACT:
A homogeneous electro rheological fluid is provided. The fluid comprises a lyotropic liquid crystalline polymer dissolved in a solvent in low concentrations in a manner in which the fluid does not exhibit a liquid crystalline state. According to the homogeneous electro rheological fluid of the present invention, the problem associated with the precipitation of particles can be circumvented. Moreover, the electro rheological fluid can provide a large difference in torque before and after the application of an electric field; therefore, exhibits good electro rheological properties.
REFERENCES:
patent: 5354489 (1994-10-01), Inoue et al.
patent: 5536428 (1996-07-01), Sasaki et al.
Database WPI, Section Ch, Week 9314, Derwent Publications Ltd., London, Great Britain, Class A85, AN 93-111695 & JP-A-04 348 194 (Asahi Chem Ind. Co. Ltd.), Dec. 3, 1992.
Yang et al, "Electrorheology of Poly(n-hexyl Isocyanate) Solutions", Rheology Bulletin, vol. 60, No. 2, Jul. 1991.
Chem Abs, AN 120:78273, "Electroheology of a nematic poly(n-hexyl isocyanate) solution", Yang et al, Aug. 1992.
Haji Katsuhiko
Ishii Takafumi
Sasaki Makoto
Nippon Oil Co. Ltd.
Skane Christine
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