The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 1996
Filed:
Nov. 09, 1994
Ryoichi Kishi, Tsukuba, JP;
Hisao Ichijo, Tsukuba, JP;
Takeshi Kitano, Tsukuba, JP;
Masatoshi Iguchi, Tsukuba, JP;
Agency of Industrial Science and Technology, Tokyo, JP;
Abstract
Disclosed is an electrorheological fluid which is a uniform mixture or solution consisting of a thermotropic polymeric liquid crystal compound such as poly(4'-cyano-4-biphenyloxyhexyl acrylate) and a thermotropic low-molecular liquid crystal compound such as 4-cyano-4'-pentyl biphenyl to serve as the solvent of the polymer in a specified molar ratio. The viscosity of the liquid composition is increased as the direct-current electric field applied thereto is increased while this electrorheological effect disappears when the temperature of the composition is increased to exceed a phase transition temperature which is specific to the respective combinations of the polymeric and low-molecular liquid crystal compounds.