EP 0393830 A1 19901024 - Electrorheological fluids.
Title (en)
Electrorheological fluids.
Title (de)
Elektrorheologische Flüssigkeiten.
Title (fr)
Fluides électrorhéologiques.
Publication
Application
Priority
- GB 8906337 A 19890320
- GB 8929065 A 19891222
Abstract (en)
An electrorheological fluid composition comprising a dispersion of an aluminosilicate in an electrically highly resistive fluid vehicle, characterised in that the aluminosilicate comprises a) a moiety of empirical formula (Al2O3)b (SiO2)c where b and c are any numerical values provided that the ratio of b/c never exceeds 1, and b) transition metal cations, including those of group IB metals. and optionally comprises a polar adsorbate, eg a crystalline zeolite, a particulate material for use as the disperse phase of an electrorheological fluid, which comprises such an aluminosilicate, and a process for the preparation of such a material.
IPC 1-7
C10M 125/26; C10M 171/00; C10N 40/06; C10N 40/14; C10N 50/00
IPC 8 full level
C01B 33/40 (2006.01); C01B 33/42 (2006.01); C01B 33/44 (2006.01); C01B 39/00 (2006.01); C01B 39/14 (2006.01); C01B 39/22 (2006.01); C01B 39/24 (2006.01); C10M 125/26 (2006.01); C10M 171/00 (2006.01); C10N 10/02 (2006.01); C10N 10/06 (2006.01); C10N 10/16 (2006.01); C10N 40/14 (2006.01)
CPC (source: EP)
C10M 125/26 (2013.01); C10M 171/001 (2013.01); C10M 2201/102 (2013.01)
Citation (search report)
- [A] EP 0265252 A2 19880427 - UNIV MICHIGAN [US]
- [A] EP 0219751 A2 19870429 - BAYER AG [DE]
- [A] US 3367872 A 19680206 - MARTINEK THOMAS W, et al
- [A] US 3047507 A 19620731 - WINSLOW WILLIS M
- [X] US 2882244 A 19590414 - MILTON ROBERT M
- [A] CHEMICAL PATENT INDEX, BASIC ABSTRACTS JOURNAL, week 7408, 5th February 1974, section Chemical, Acc. No. C75-V14775V/08, Derwent Publications Ltd, London, GB; & JP-B-74 005 117 (KAWASAKI HEAVY INDS.)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 90302711 A 19900314; JP 6854890 A 19900320