Abstract: Described herein is a process for preparing a foam (FA) with a Poisson's ratio in the range of from ?0.5 to 0.3, the method including the steps of providing a foam (F1) with a flow resistance in the range of from 3000 to 8000 Pas/m, determined according to DIN EN 29053, and subjecting the foam (F1) to thermoforming including triaxial compression, wherein the foam (F1) is not reticulated prior to step (ii). Also described herein is the foam obtained or obtainable according to the process and the use of the foam as, for example, an energy absorbing device, preferably in protective gear, furniture, cushions, in cleaning devices with improved rinse-out behavior, in shoe soles, or as sealing, insulating or anchorage providing material for example used in earphones, ear plugs or dowels, or as acoustic material.

Abstract: The present invention relates to a process for producing a polyurethane, comprising the reaction of a polyol composition (PZ) comprising a polyol (P1) with a polyisocyanate composition (PIZ-1) comprising a polyisocyanate (I1) to obtain a hydroxyl-terminated prepolymer (PP1) and the reaction of the prepolymer (PP1) obtained with a polyisocyanate composition (PIZ-2) comprising a polyisocyanate (I2) and at least one chain extender (K1) to obtain a polyurethane (PU1), wherein the molar ratio of the OH groups in the components of the polyol composition (PZ) to the isocyanate groups in the components of the polyisocyanate composition (PIZ-1) in the reaction in step (i) is in the range from 1.3:1 to 10:1. The present invention further relates to polyurethanes obtainable or obtained by such a process, and to the use of the polyurethanes for production of shaped bodies, adhesives, coatings, hoses, films, nonwoven articles or fibers.

Abstract: A graft macromer, comprising the reaction product of at least one macromer being at least one molecule which comprises in its structure one or more hydroxyl-terminated polyether and/or polyester chains, with at least one grafting compound which comprises in its structure at least one at least monoalkoxylated or at least monohalogenated silyl group and at least one alkyl, cycloalkyl or aryl containing group which is reactive towards the hydroxyl group of the macromer, is used for dispersing e.g. SiO2 in a polyol.

Abstract: In a method and device for monitoring the track signals of a position change sensor, a resource-optimized diagnosis of errors of track signals of a position change sensor is performed.

Abstract: A method for producing a shaped body, containing: producing the shaped body from a composition by a powder-based layer construction process, wherein the composition contains a thermoplastic polyurethane, obtained by reacting a polyisocyanate composition and a polyol composition, the thermoplastic polyurethane is solid at least in a temperature region below 50° C. and has end groups selected from the group consisting of first end groups and second end groups, wherein the first end groups are optionally eliminated at a first temperature, and the second end groups are optionally eliminated at a second temperature, to form reactive groups on the thermoplastic polyurethane that optionally enter into a reaction with functional groups of the thermoplastic polyurethane or functional groups of a further component of the composition, and wherein the first temperature and the second temperature are each greater than or equal to 60° C.

Abstract: The present invention relates to a thermoplastic polyurethane obtainable or obtained by converting a polyisocyanate composition, a one chain extender, and a polyol composition, wherein the polyol composition comprises a polyol (P1) which has a molecular weight Mw in the range from 500 to 2000 g/mol and has at least one aromatic polyester block (B1), wherein the hard segment content in the thermoplastic polyurethane is <75%. The present invention further relates to a process for producing a shaped body comprising such a thermoplastic polyurethane, and to shaped bodies obtainable or obtained by a process of the invention.

Abstract: A sample preparation device is useful for preparing a sample of a process fluid, and the device contains a removal device; a filter unit, which is designed to filter the sample of the process fluid in such a way that the filtered sample of the process fluid is substantially free of any turbidity; a feed device; and also a temperature control device, which is designed to control the temperature of the sample of the process fluid in such a way that the temperature of the sample of the process fluid is substantially constant while it is being fed.

Abstract: The present invention relates to a thermoplastic polyurethane obtainable or obtained by reacting a polyisocyanate composition, a chain extender, and a polyol composition, wherein the polyol composition comprises a polyol (P1) which has a molecular weight Mw in the range from 1500 to 2500 g/mol and has at least one aromatic polyester block (B1). The present invention further relates to a process for producing a shaped body comprising such a thermoplastic polyurethane, and to shaped bodies obtainable or obtained by a process of the invention.

Abstract: A system of automation components, having a control unit, having a memory area which includes a parameter data record, and a key memory, which is able to be connected to the control unit via an unambiguously allocatable, electrically conductive connection. The key memory is location-bound, in particular able to be spatially fixedly allocatable to a specific point in a system as a whole, the key memory having at least one non-volatile memory area, including an unambiguous item of identifying information. The control unit is able to read out the identifying information. The system also includes an external data memory, which is able to be directly accessed, and data is able to be exchanged between the control unit and the external data memory.

Abstract: A security device includes at least one non-volatile memory element and a key memory having at least one non-volatile memory element including at least one data field. The security device provides a physical interface for the data exchange with a key memory, the range of the physical interface being spatially restricted, and the key memory being location-bound. The security device includes at least one calculation unit, which dynamically ascertains in particular the check-sum information from the parameter data record.

Abstract: The present invention relates to a method for the coating of a surface of a TiAl alloy, in which at least one layer is electroplated on the surface of the TiAl alloy, wherein the surface of the TiAl alloy is subjected to an at least two-step surface treatment for the formation of a roughened surface, this treatment comprising at least one electrochemical processing and at least one electroless chemical processing.

Abstract: A safety switching device for an automated installation includes a power supply unit for providing at least one operating voltage for the device. The power supply unit receives an input voltage via a feed line and provides a defined output voltage on an output side. Electrical supply to the power supply unit is interrupted if an instantaneous output voltage is higher than the defined output voltage. The interruption is achieved by first and second switching elements arranged in series and connecting the input of the power supply unit to ground, and by an interrupter element in the feed line. The interrupter element triggers when both the first and the second switching elements are in a closed, low-impedance state.

Abstract: A safety switching apparatus for switching on or off a technical installation has a failsafe control/evaluation unit with an input for receiving an input signal. The failsafe control/evaluation unit is designed to process the input signal in order to produce an output signal for switching on or off the technical installation at a defined output signal time. The failsafe control/evaluation unit has a first output for transmitting the output signal to an electromechanical switch. The electromechanical switch has an operating contact for switching a load circuit of the technical installation and has a positively guided auxiliary contact in an auxiliary contact current path. The auxiliary contact can be used to carry a current for checking the switching position of the operating contact. A switching element is arranged in the auxiliary contact current path.

Abstract: The present invention relates to a method for the coating of a surface of a TiAl alloy, in which at least one layer is electroplated on the surface of the TiAl alloy, wherein the surface of the TiAl alloy is subjected to an at least two-step surface treatment for the formation of a roughened surface, this treatment comprising at least one electrochemical processing and at least one electroless chemical processing.

Abstract: A safety switching device for the failsafe shutdown of an electrical load has at least one input circuit for receiving an input signal from a signaling device which signals a safety-related state, an evaluation and control unit for evaluating the input signal, and at least one output circuit for outputting an output signal. The safety switching device further has at least one switching element for interrupting a current supply path to the load in dependence on the input signal. The input circuit and the output circuit are joined at a device connector so that the device connector can selectively be used as an input for receiving the input signal or as an output for outputting the output signal. The input circuit has a test switch which is coupled to the evaluation and control unit which is designed for selectively suppressing the input signal using the test switch.

Abstract: A safety switching device for an automated installation includes a power supply unit for providing at least one operating voltage for the device. The power supply unit receives an input voltage via a feed line and provides a defined output voltage on an output side. Electrical supply to the power supply unit is interrupted if an instantaneous output voltage is higher than the defined output voltage. The interruption is achieved by first and second switching elements arranged in series and connecting the input of the power supply unit to ground, and by an interrupter element in the feed line. The interrupter element triggers when both the first and the second switching elements are in a closed, low-impedance state.

Abstract: A safety switching apparatus for switching on or off a technical installation has a failsafe control/evaluation unit with an input for receiving an input signal. The failsafe control/evaluation unit is designed to process the input signal in order to produce an output signal for switching on or off the technical installation at a defined output signal time. The failsafe control/evaluation unit has a first output for transmitting the output signal to an electromechanical switch. The electromechanical switch has an operating contact for switching a load circuit of the technical installation and has a positively guided auxiliary contact in an auxiliary contact current path. The auxiliary contact can be used to carry a current for checking the switching position of the operating contact. A switching element is arranged in the auxiliary contact current path.

Abstract: A safety switching device for the failsafe shutdown of an electrical load has at least one input circuit for receiving an input signal from a signaling device which signals a safety-related state, an evaluation and control unit for evaluating the input signal, and at least one output circuit for outputting an output signal. The safety switching device further has at least one switching element for interrupting a current supply path to the load in dependence on the input signal. The input circuit and the output circuit are joined at a device connector so that the device connector can selectively be used as an input for receiving the input signal or as an output for outputting the output signal. The input circuit has a test switch which is coupled to the evaluation and control unit which is designed for selectively suppressing the input signal using the test switch.