Abstract: A process for the production of a graft copolymer composition is presented, which is based on acrylonitrile-styrene-acrylate (ASA) or acrylonitrile-butadiene-styrene (ABS) graft copolymers. The graft copolymers obtained by emulsion polymerization and precipitation show improved dewatering behavior after precipitation. Based on this method ASA and ABS graft copolymers with low residual humidity can be obtained. Furthermore, the invention relates to a process for the production of a thermoplastic molding composition comprising at least one thermoplastic styrene copolymer, in particular a styrene-acrylonitrile copolymer, the graft copolymer obtained by the process, and optional further components.

Abstract: The invention relates to a process for producing thermoplastic molding materials based on acrylonitrile-styrene-acrylate copolymers (ASA) having improved surface properties, in particular an improved stability of surface quality during storage in a hot and humid environment and a reduced content of residual monomers. The invention further relates to the use of a fluidized bed dryer and/or a flow dryer in the production of thermoplastic ASA molding materials for improving surface quality and the use of a fluidized bed dryer and/or a flow dryer in the production of thermoplastic ASA molding materials for reducing the content of residual monomers. The invention further provides ASA molding materials producible by means of the process according to the invention and also moldings.

Abstract: The invention relates to a method for producing a polymer from a first component and a second component by means of a reactor (50), wherein reaction heat in the reactor (50) is discharged via an evaporative cooler (40), wherein gaseous exhaust vapour in the reactor (50) is supplied to the evaporative cooler (40), and condensed exhaust vapour is guided from the evaporative cooler (40) back into the reactor (50). In this way, the first component and/or second component are supplied at least partially via the evaporative cooler (40) and moved from the evaporative cooler (40) into the reactor (50). The invention also relates to a system for producing a polymer, comprising a reactor (50) and an evaporative cooler (40) for discharging reaction heat in the reactor (50). In addition, the evaporative cooler (40) has at least one filling opening (46) for filling in the first and/or second component.

Abstract: The present invention is directed to a process for the production of graft copolymer compositions which are based on acrylonitrile-styrene-acrylate (ASA) or acrylonitrile- butadiene-styrene (ABS) graft copolymers. The graft copolymers compositions are obtained by emulsion polymerization and afterwards precipitation, dewatering, drying and optionally cooling of the dried graft copolymer powder, wherein the graft copolymer B powder obtained is mixed with an aeration gas, preferably air and/or nitrogen, wherein the bulk density of the graft copolymer B powder is equal or less than 98.5% of the bulk density of the non-aerated graft copolymer B, during the whole aeration step. The graft copolymer powders show higher powder flowability and less tendency of caking during storage, for example in a silo.

Abstract: The present disclosure relates to a surface-modifiable injection-molded body comprising a thermoplastic polymer matrix and second polymer material at least in parts, in which the polymer matrix and the second polymer material have different weight average molecular weights and polarities, and the second polymer material is an adhesive. The present disclosure also relates to a method for its production.

Abstract: Method for producing a thermoplastic molding compound (F) in an extruder, which has at least one screw having an outside diameter (D), wherein a thermoplastic component (TP) containing at least one thermoplastic polymer, a component (C) containing a graft polymer based in particular on butadiene and/or acrylate, and optionally a component (Z) containing additives are heated to a temperature of 200° C. to 280° C.

Abstract: Method for detecting a state of an electric system (150) in a motor vehicle, said electric system (150) comprising a generator unit that includes an electric machine (100) with a rotor winding (110) and a stator winding (120) as well as a rectifier (130) which is connected to the electric machine (100) and via which the electric system (150) is connected to the electric machine (100); in said method, a decision about the current state of the electric system (150), especially about the availability of a battery (200) of the electric system, is made in accordance with an excitation current (IE) flowing through the rotor winding (110) of the electric machine (100).

Abstract: A crimping die device (15) for a crimping press which includes a first movable pressing die (20), which is preferably essentially vertically movable, a first drive device (22), and the first drive device (22) comprises a first drive (23) as well as a base structure (17). Furthermore, a wedge flange (30) is present, which is movable and is connected to the first drive (23) of the first drive device (22). The invention furthermore relates to a crimping press with a crimping die device as well as a method for making a crimp connection with a crimping die device in a crimping press.

Abstract: An approach for providing exclusive access to a resource shared by a plurality of processes in a computer system. The approach includes a computer processor retrieving a process identifier for a first process attempting to access the resource, where the process identifier is uniquely assigned to each process of the plurality of processes requiring the resource with the computer system. The approach includes the computer processor using the process identifier for the first process and a mutual exclusion object that includes a lock position allowing exclusive access to the resource and a wait position for a next process to attain the lock position to provide exclusive access to the resource.

Abstract: Method for producing a thermoplastic moulding compound containing: up to 40 wt. % of a graft copolymer A, containing 50-70 wt. % graft base A1 from an acrylic ester polymer and 30-50 wt. % of a graft shell A2, and 0-90 wt. % of a hard matrix B, wherein the reaction for producing the graft copolymer A is carried out in the presence of 0.01 to 4 times the molar amount of sodium carbonate, relative to the molar amount of initiator, wherein the reaction for producing copolymer A is carried out in the presence of 0.1 to 1 wt. % of an emulsifier relative to the amount of the respective monomers used, and wherein during the polymerisation reaction, during the post-polymerisation and/or after the polymerisation reaction, water or an aqueous alkali solution are added to the reaction mixture for producing the graft copolymer A.

Abstract: A method for controlling at least one switchable valve, a brake impulse that slows down the valve movement being produced during the controlling of the at least one valve. At least one parameter of the brake impulse determines the position and/or the duration of the brake impulse. A parameter is modified, and the reaction of a measurement quantity or of a characteristic feature derived from the measurement quantity is evaluated.

Abstract: A network access control method involves requesting access to a network via a wireless communication adapter for a personal electronic device. Then, an acoustic audio code output by an audio signaling device connected to the wireless communication adapter by wire is acoustically captured by the personal electronic device. A digital representation of the captured acoustic audio code is submitted from the personal electronic device to the wireless communication adapter via wireless communication. Subsequently, the wireless communication adapter authenticates the personal electronic device on the basis of the submitted digital representation of the captured acoustic audio code.

Abstract: The invention relates to a process for the production of thermoplastic moulding compounds, in particular for the production of acrylonitrile-butadiene-styrene (ABS), wherein at least a first reagent (11) and a second reagent (12) of the thermoplastic moulding compounds are fed to a loop conduit (29) which comprises a static mixer (36), wherein the reagents (11, 12) are pressed in loops through the loop conduit (29) and passing the static mixer (36), whereby the reagents (11, 12) are dispersed to form a dispersion (15) in the static mixer (36). The invention also relates to a thermoplastic moulding compound that is produced by the inventive process.

Abstract: The present invention relates to a process for producing a thermoplastic molding composition and articles made thereof having improved surface quality, in particular improved surface quality after exposure to warm-humid environmental conditions. The thermoplastic molding composition comprises a thermoplastic polymer A, a graft copolymer B obtained by emulsion graft polymerization and optionally a further polymer component P, as well as optional further components/additives K, wherein at least one crystallization additive C, selected from phosphate compounds having 1 to 25 phosphate units, organic acids and salts thereof, is added during or after the preparation of the graft copolymer B.

Abstract: A passenger supply unit for an aircraft cabin, including an input device for detecting a control command from a passenger, and for outputting a control signal to a further device for controlling the further device according to the control command. A passenger supply unit can be controlled by a passenger independent of its height above the passenger seat. The unit can be independent from an in-flight entertainment system. The input device includes a contact free sensor to detect the control command without being contacted by a passenger.

Abstract: A method for vehicle electrical system diagnosis by means of a regulator (240, 270), comprising: detecting (10) the output signal of a voltage regulator (240, 270), which is configured to regulate the voltage supplied by a generator (200) via a converter (250, 260) for a vehicle electrical system (220) of a vehicle by outputting an output signal, by way of a control device; ascertaining (20) an instantaneous power output (100) at the vehicle electrical system (220) on the basis of the detected output signal, and analyzing (30) the ascertained power output (100) for diagnosis of the vehicle electrical system (220) and at least one electrical consumer which is connected to the vehicle electrical system.

Abstract: A control unit system includes a control unit on which a rights management system is set up, access permission information being retrievably stored by the rights management system, functions in executable form being stored on further control units of the control unit system, at least one of the further control units being configured as a query control unit set up to execute these functions, or not, based on access permission information stored in the rights management system, characterized in that the control unit also includes a device management system that is configured to establish a connection with a server via a communication interface and to provide the rights management system with an update of the access permissions received from the server via this interface.

Abstract: A method for producing a thermoplastic moulding compound by means of an extruder (10), which comprises at least one feed zone (20), at least one mixing section (30), at least one venting section (40) and at least one discharge zone (50), wherein in the at least one feed zone (20) a water-containing first component and a second component are supplied, in the at least one mixing section (30) the thermoplastic moulding compound is mixed and contained water is evaporated, in the at least one venting section (40) water vapour is removed from the moulding compound and in the at least one discharge zone (50) the moulding compound is discharged. At least one of the mixing housings (31, 32) is kept at a temperature that is equal to or lower than the temperature of the moulding compound within the mixing section (30).

Abstract: A network includes a power over data link, a data switch coupled to a data bus and configured to transmit and/or receive data from and/or to the data bus via the power over data link, and a service device coupled to the data switch via the power over data link and configured to transmit and/or receive data from and/or to the data switch via the power over data link. The service device has a power splitter to split the data signal of the power over data link from the power supply, service functions coupled to the power splitter and configured to receive power from the power splitter, and a voltage comparator coupled to the power splitter. The voltage comparator is configured to detect voltage level of the power supply, and based on the detected voltage level, to selectively activate and/or deactivate one or more of the service functions.

Abstract: The invention relates to a process for the production of thermoplastic moulding compounds, in particular ABS, wherein at least a first reagent (11) and a second reagent (12) of the thermoplastic moulding compounds are fed to a gear pump (10) which comprises a housing and at least a first gear wheel that is rotatable relative to the housing about a first axis, and a second gear wheel that is rotatable relative to the housing about a second axis, wherein a loop conduit (29) is provided, and wherein the reagents (11, 12) are pressed in a loop through the loop conduit (29) and passing the gear wheels, whereby the reagents (11, 12) are dispersed to form a dispersion (15) in the gear pump (10). The invention also relates to a thermoplastic moulding compound that is produced by the inventive process.