EP 0636683 B1 20050504 - Electrorheological fluid
Title (en)
Electrorheological fluid
Title (de)
Elektrorheologische Flüssigkeit
Title (fr)
Fluide électrorhéologique
Publication
Application
Priority
JP 18952993 A 19930730
Abstract (en)
[origin: EP0636683A1] An electrorheological fluid comprising a disperse phase formed of dielectric particles and a dispersion medium formed of an electrical insulating oil and characterized by exhibiting a viscosity of not more than 0.2 Pa.s at a shear rate of 33/s when measured at 25 DEG C in the absence of supply of an electric field and a structural viscosity satisfying the condition of the formula (1): 0.01 Pa.s </= eta 1 - eta 2 </= 0.5 Pa.s (1> wherein eta 1 is the viscosity in at a shear rate of 3.3/s when measured at 25 DEG C in the absence of supply of an electric field and eta 2 is the viscosity in at a shear rate of 33/s when measured at 25 DEG C in the absence of supply of an electric field. This electrorheological fluid generates a large shear stress, exhibits an excellent current property and an excellent durability, and excels particularly in dispersion stability, redispersibility and fluidity.
IPC 1-7
IPC 8 full level
C10M 171/00 (2006.01)
CPC (source: EP)
C10M 171/001 (2013.01)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0636683 A1 19950201; EP 0636683 B1 20050504; DE 69434355 D1 20050609; DE 69434355 T2 20060309
DOCDB simple family (application)
EP 94304455 A 19940620; DE 69434355 T 19940620