Patent ID: 9177691
Filing Date: 2015-11-03
Classification: B82Y,C08F,H01B

Abstract:
1. An electrorheological fluid, comprising: a nanoparticle composition comprising: a derivatized nanoparticle covalently bonded to or coated on a surface of a polymeric or inorganic particle; and a dielectric fluid having a dielectric constant lower than that of the nanoparticle composition, wherein the derivatized nanoparticle comprises a nanoparticle and a functional group covalently bonded to the nanoparticle, the functional group comprising carboxy, epoxy, ether, ketone, amine, hydroxy, alkoxy, alkyl, aryl, aralkyl, alkaryl, lactone, functionalized polymeric or oligomeric groups, or a combination comprising at least one of the forgoing functional groups, and wherein the derivatized nanoparticle is further coated with a polymeric or metallic coating before covalently bonded to or coated on a surface of the polymeric or inorganic particle.