Compositions – Electrically conductive or emissive compositions – Free metal containing
Reexamination Certificate
2005-02-08
2005-02-08
Gupta, Yogendra N. (Department: 1751)
Compositions
Electrically conductive or emissive compositions
Free metal containing
C252S500000, C252S518100, C252S519100, C252S073000
Reexamination Certificate
active
06852251
ABSTRACT:
There is described an electrorheological fluid comprising particles of a composite material suspended in an electrically insulating hydrophobic liquid. The composite particles are metal salts of the form M1xM22-2xTiO(C2O4)2where M1is selected from the group consisting of Ba, Sr and Ca and wherein M2is selected from the group consisting of Rb, Li, Na and K, and the composite particles further include a promoter selected from the group consisting of urea, butyramide and acetamide.
REFERENCES:
patent: 0 549 227 (1993-06-01), None
patent: 2 712 600 (1995-05-01), None
Chan Che Ting
Ge Weikun
Sheng Ping
Wen Weijia
Yang Shihe
Burns Doane Swecker & Mathis L.L.P.
Gupta Yogendra N.
Hamlin D. G.
The Hong Kong University of Science and Technology
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