摘要:
A mixture suitable for use as a foam-suppressing surfactant additament in cleaning compositions for mechanized cleaning processes comprises at least two mixtures of alkoxylated alcohols IR--O--(C.sub.2 H.sub.4 O).sub.x --(C.sub.3 H.sub.6 O).sub.y --H (I)where x is an average degree of ethoxylation between 1 and 12, y is an average degree of propoxylation between 1 and 15, one alkoxylated alcohol mixture carries straight-chain or branched C.sub.8 -C.sub.18 -alkyl groups as the radical R and one other alkoxylated alcohol mixture carries straight-chain or branched C.sub.10 -C.sub.20 -alkyl groups as the radical R, subject to the proviso that the two radicals R differ by at least 0.5 in the average number of carbon atoms, and the two alkoxylated alcohol mixtures present in a ratio of from 10:90 to 90:10.
摘要:
A method of demulsifying a crude oil and water composition involves adding demulsifiers made from acrylic acid/methacrylic acid copolymerized with hydrophilic monomers.
摘要:
Serine-N,N-diacetic acid and derivatives thereof are prepared in various ways and used in particular as complexing agents, bleaching agent stabilizers and builders in detergents.
摘要:
Aqueous acidic cleaner formulations contain, as essential components,(a) from 1 to 20% by weight of one or more nonionic surfactants based on oxyalkylated fatty alcohols, fatty acids, fatty amines, fatty amides or alkane-sulfonamides,(b) from 0.1 to 15% by weight of one or more polyetherpolyols which are obtainable by reacting a dihydric to hexahydric alcohol of 2 to 10 carbon atoms with an alkylene oxide of 2 to 4 carbon atoms and reacting this product with a 1,2-alkylene oxide or alkyl or alkenyl glycidyl ether of 8 to 30 carbon atoms and(c) from 1 to 40% by weight of one or more acids.
摘要:
In a method for controlling a safety device in a motor vehicle, wherein the safety device is controlled as a function of at least one preset characteristic of a vehicle seat in the motor vehicle, an electric adjusting mechanism, which is provided for adjusting the preset characteristic of the vehicle seat, detects the measured adjustments, which relate to the preset characteristic, and that the preset characteristic is determined with the aid of the measured adjustments.
摘要:
A motor vehicle control device is provided with first and second partial devices. The first partial device houses sensors and/or associated functions of the control unit that are identical for all vehicle models in a series. The second partial device houses the sensors and/or functions of the control unit that are additionally required for an individual vehicle.
摘要:
A restraint system, in particular for a motor vehicle, includes a restraint device, to be activated in at least two steps; a sensor unit for sensing activation-relevant vehicle and operating data; a control device for processing the activation-relevant vehicle and operating data; as well as an ignition unit for driving the actuators for activating the at least one restraining device. To increase the safety of such a restraining device, at least two independently switched ignition units are provided such that, when one ignition unit fails, the activation of the restraint device in at least one step is guaranteed by the other ignition unit.
摘要:
A restraint system for a vehicle having sensors for detecting a collision of the vehicle is described. The system has a control unit which analyzes the signals and, in the event of a recognized collision of the motor vehicle, transmits a first signal to a safety belt restraint, which then activates a belt tensioner using a predefined first restraint force, and subsequently transmits a second signal to a front airbag system, which then triggers an airbag. The system has a malfunction monitoring unit for one of the restraint devices such that the control unit transmits a third signal to a replacement restraint device in the event that a malfunction of the front airbag system is recognized by the malfunction monitoring unit.
摘要:
Method for the evaluating of an installation location of an acceleration sensor assembly in a vehicle with respect to the transmission characteristics to this installation location of acceleration impulses acting on the vehicle, with a following serially-connected evaluating circuit, especially for the triggering of occupant protection devices, in that a prescribed acceleration impulse is impressed at at least one prescribed position on the vehicle, the impulse response is measured at the installation location, the frequency spectrum of the impulse response is determined, and the installation location is evaluated through comparison of this frequency spectrum with a prescribed nominal spectrum.