Abstract:
The invention relates to fuel compounds containing a lubricating agent derived from synthetic polyester oils with unbranched or branched carbon acid groups C5 to C10, which are suitable for lubricating refrigerating machines, heat pumps and similar equipment such as air conditioning systems, which use carbon dioxide as fuel.
Abstract:
Proposed are homogeneous electroviscous liquids containing or consisting of aluminium soaps made from the reaction products of one or more polycarboxylic acids, or their anhydrides or half-esters, with reactive aluminium compounds. Such liquids exhibit a high electro-rheological effect and are completely homogenous.
Abstract:
The invention concerns hydraulic fluids for, in particular, vibration damping and level control in vehicles. The hydraulic fluids proposed consist essentially of esterification products of singly unsaturated fatty acids and 2-alkyl-1-alkanols. These liquids meet the requirements placed on hydraulic fluids for engineering use, one of their particular qualities being good biodegradability.
Abstract:
Homogeneous electroviscous liquids contain or are composed of aluminium soaps on the basis of reaction products of one or several polycarboxylic acids or their anhydrides or semi-esters with aluminium alcoholates. Such liquids have a high electro-rheological activity and are totally homogeneous.
Abstract:
The invention relates to the preparation of liquid compositions containing dispersed particular solid matters, which are characterized by an extremely low sedimentation proprensity of solid matters dispersed therein. Said compositions, which contain ferromagnetic particular solid matters, can be used as magneto-rheological liquid.