Abstract: A process for preparing vinyl acetate in the gas phase from ethylene, acetic acid and oxygen or oxygen-containing gases over a catalyst, consisting essentially of palladium and/or its compounds, gold and/or its compounds and alkali metal compounds on a support, wherein the catalyst further comprises vanadium and/or its compounds and catalyst therefrom.

Abstract: Described is a process for producing a self-supporting metal foil (40), in particular copper foil, which by virtue of its constitution has a low shearing strength and which can be structured in a sharp-edged configuration. In this case a base layer of the metal foil (40) is galvanically deposited on a roller cathode (22). A cauliflower structure (60) comprising the metal is deposited in firmly adhering relationship on the metal base layer (58) by means of an additional anode (32) provided between the roller cathode (22) and the anode cage (24). The metal foil (40) comprising the metal base layer (58) and the cauliflower structure (60) is detached from the roller cathode (22), rinsed and dried. The dried foil (40) comprising the metal base layer (58) provided with the cauliflower structure (60) is moved through a black oxide bath (46). There then follows a rinsing operation and a drying operation.

Abstract: A vehicle having a central locking system for doors, tailgates or the like, as well as a device for illuminating an interior space of the vehicle, wherein the central locking system has a central control unit (1), and the central control unit (1) has an output (7) both for at least one actuating drive (2) and for the device for illuminating the interior space.

Abstract: The invention relates to a locking device, in particular for a door, a tailgate, a trunk lid or the like of a vehicle, with at least one actuating drive which is capable of being activated in order to set functions of the locking device and which is operatively connected to an element of the locking device via at least one transmission element, according to the invention means being provided which detect the continuous movements and functional positions of the actuating drive or of the transmission element.

Abstract: The invention relates to a closing device for a movable element, in particular for a door, a flap or the like, of a vehicle, having a rotary latch which arrests or releases a closing bolt, it being possible for the rotary latch to be arrested by a detent pawl to effect a closed position of the element and it being possible for the detent pawl to be driven by an actuating drive for the purpose of releasing the rotary latch to effect an opening position of the element, the invention making provision for means which control the actuating drive in such a manner that after the actuating drive has been driven from a rest position in the direction of a working position for the purpose of releasing the rotary latch it is returned in a controlled manner from the working position into the rest position.

Abstract: The invention relates to an environment-friendly process for the preparation of weakly acid cation exchange resins by hydrolysis of crosslinked acrylonitrile bead polymers with an alkaline hydrolizing agent at elevated temperature, according to which the bead polymer and alkaline hydrolizing agent are brought together at elevated temperature only.

Abstract: A system for the central locking of several closure points of an automotive vehicle with a remotely controlled setting member at each closure point has a central control circuit, as well as activating switches. Each switch has a neutral central position between "closed" and "open" positions at one or more closure points, by which the control circuit can be controlled for movement of all setting members in the same direction. A switch sequence of the invention provides for individual opening of a closure point by a process wherein the actuating switch must be brought into the "closed" position and then immediately into the "open" position.

Abstract: A circuit arrangement for controlling a rotary-magnet measuring instrument (6) by an input voltage via a controlled source of current has a first amplifier (difference amplifier 1) with a first negative-feedback resistor (R.sub.2) and a first input resistor (R.sub.1). In order to linearize the approximately S-shaped characteristic curve of the rotary-magnet measuring instrument (6), the controlled source of current is developed with a characteristic curve which is defined as consisting of three straight line segments of differing slope. For this, a second amplifier (difference amplifier 8), controlled as a function of the input voltage and a semiconductor path controlled by it (2nd npn-transistor 12) which lies in series with the first input resistor (R.sub.1) are provided. One input (10) of the second amplifier is connected to a constant voltage divider (divider resistors R.sub.3, R.sub.5) and via a second negative-feedback resistor (R.sub.