Homogeneous electroviscous fluids using aluminum compounds

US5800731A · kind A · utility

Assignee

• RWE-DEA Aktiengesellschaft fur Mineraloel und Chemie · DE

Inventors

• Dietrich Pirck
• Hans-Dieter Grasshoff · Hamburg, DE
• Harald Kohnz · Oberhausen, DE
• Peter Finmans · Rheinberg, DE
• Tobias Carstensen · Kirchberg, DE
• Dieter Jakubik · Neheim, DE
• Wilfried Weber · Wittlich, DE
• Dieter Winkler · Munich, DE

Key dates

• Filing date: Jun 11, 1996
• Grant date: Sep 1, 1998
• Expiry date: Jun 11, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/50
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Homogeneous, electro-viscous fluids are provided which contain aluminum soaps based on products obtained by reacting one or more mono- or polycarboxylic acid(s) or the anhydrides or semi-esters thereof with reactive aluminum compounds, such as aluminum alcoholates. The aforesaid fluids manifest high electro-rheological effect and are completely homogeneous, and do not require a dispersant.