Abstract: The present disclosure provides epoxy adhesive compositions with increased adhesion to surfaces, including metal surfaces, comprising a catechol modifier and methods of use thereof.

Abstract: The present disclosure relates to compositions derived from bioreachable molecules, such as amino acids and/or steroids. In particular, the composition can be a monomer, a polymer, or a copolymer derived from an amino acid dimer. Such compositions can optionally include a functionalized steroid.

Abstract: The invention relates to an efficient process for the preparation of isoolefin polymers such as polyisobutene or butyl rubber by polymerization of isobutene and optionally further monomers in the presence of an initiator system prepared by continuously contacting at least one boron or aluminium compound and at least one initiator.

Abstract: The invention relates to an efficient process for the preparation of isoolefin polymers such as polyisobutene or butyl rubber by polymerization of a liquid medium comprising the monomer(s) and ethane or carbon dioxide that is substantially dissolved therein.

Abstract: The invention relates to an efficient process for the preparation of isoolefin polymers such as polyisobutene or butyl rubber by polymerization of isobutene and optionally further monomers in the presence of an initiator system prepared by continuously contacting at least one boron or aluminium compound and at least one initiator.

Abstract: The application relates to a process for continuously producing aqueous polyurethane dispersions, which is characterized by the use of micro structured mixing elements and addition of water twice during the dispersion step. The energy input in the mixing of the dispersion is low. In addition, the application describes an apparatus suitable for execution of the aforementioned process.

Abstract: The present invention refers to a system, a method and product for automatically identifying quality defects in configuration parameters of a database system and for automatically correcting them according to predefined quality procedures. The method is executed on a central server (12) and on several satellite systems (10) as well. The method may be integral part of an enterprise resource planning system.

Abstract: The present invention refers to a system, a method and product for automatically identifying quality defects in configuration parameters of a database system and for automatically correcting them according to predefined quality procedures. The method is executed on a central server (12) and on several satellite systems (10) as well. The method may be integral part of an enterprise resource planning system.

Abstract: The present invention relates to a tubular reactor (14) for multi-phase polymerization, in particular for producing butyl rubber, comprising a pipe piece (16) for radially delimiting a reactor volume between an inlet (18) and an outlet (20), a stirrer (22) for generating a flow (27) in the radial direction of the pipe piece (16), wherein the stirrer (22) is dimensioned and operable such that the flow (27) is impartable with a centrifugal force which generates a concentration distribution in the radial direction inside the pipe piece (16) and an outlet conduit (32) for discharging a concentrated radially inner part (30) of the flow (27, 28). Enrichment of polymer particles in the radially inner part (30) of the flow (27, 28) avoids gumming of the pipe piece (16) by the polymer particles so that the risk of a blockage is reduced.

Abstract: A sensor unit for detecting an encoder at a predefined position, having a circuit device and a threshold signal present at the circuit device, and a magnetic field sensor. The magnetic field sensor has a supply and ground terminal and first and second outputs, and outputs an analog sensor signal that is dependent on the distance of the encoder, and a supply unit connected to the supply terminal of the magnetic field sensor, the supply unit having a control input, and the circuit device is connected to the magnetic field sensor. The circuit device is configured to provide the sensor signal as an amplified signal value, and the circuit device is configured to determine an amount from the difference between the amplified signal value and the threshold signal and to control the amplification of the signal value and the supply unit as a function of the magnitude of the amount.

Abstract: An arrangement for testing integrated circuits includes an integrated test circuit and a cluster which has at least one integrated circuit and a second integrated circuit. The first integrated circuit is provided in a first component region of a wafer, and the second integrated circuit in a second component region. The first component region and the second component region are spaced a distance apart by a scribe line of the wafer. The integrated test circuit is connected to the first integrated circuit via a first test line section, and the second integrated circuit is connected to the first test line section via a first connecting line that has a first well in the semiconductor material, the first well extending continuously in the wafer from the first component region over the scribe line to the second component region, the first well being electrically insulated from a substrate of the wafer.

Abstract: The invention relates to a method for testing a workpiece using ultrasound, wherein an ultrasonic probe generates an ultrasound signal which has a central beam and which is coupled into the workpiece under test, and the central beam is guided along a predefined path on the surface of the workpiece, the central beam and the workpiece being moved in opposite directions at least along a portion of the path.

Abstract: The present invention relates to a tubular reactor (14) for multi-phase polymerization, in particular for producing butyl rubber, comprising a pipe piece (16) for radially delimiting a reactor volume between an inlet (18) and an outlet (20), a stirrer (22) for generating a flow (27) in the radial direction of the pipe piece (16), wherein the stirrer (22) is dimensioned and operable such that the flow (27) is impartable with a centrifugal force which generates a concentration distribution in the radial direction inside the pipe piece (16) and an outlet conduit (32) for discharging a concentrated radially inner part (30) of the flow (27, 28). Enrichment of polymer particles in the radially inner part (30) of the flow (27, 28) avoids gumming of the pipe piece (16) by the polymer particles so that the risk of a blockage is reduced.

Abstract: A method is provided for operating a magnetic field detector circuit, whereby the magnetic field detector circuit is operated alternately in an active state or in a sleep state and the magnetic field detector circuit has a magnetic field measuring device and a wake-up timer, whereby the magnetic field measuring device comprises a magnetic field sensor. In the active state, the magnetic field measuring device is operated with a supply voltage and an output signal is generated by the magnetic field sensor. The magnetic field detector circuit comprises a wake-up timer, whereby the wake-up timer is operated with the supply voltage in the sleep state and a wake-up signal is generated by the wake-up timer after a predetermined sleep interval, and the magnetic field measuring device changes from the sleep state to the active state.

Abstract: A sensor unit for detecting an encoder at a predefined position, having a circuit device and a threshold signal present at the circuit device, and a magnetic field sensor. The magnetic field sensor has a supply and ground terminal and first and second outputs, and outputs an analog sensor signal that is dependent on the distance of the encoder, and a supply unit connected to the supply terminal of the magnetic field sensor, the supply unit having a control input, and the circuit device is connected to the magnetic field sensor. The circuit device is configured to provide the sensor signal as an amplified signal value, and the circuit device is configured to determine an amount from the difference between the amplified signal value and the threshold signal and to control the amplification of the signal value and the supply unit as a function of the magnitude of the amount.

Abstract: A door impact beam for a door of a motor vehicle includes a first fastening portion configured to be fastened to a first fastening intersection of the door and a second fastening portion configured to be fastened to a second fastening intersection of the door. A profiled portion extends between the first fastening portion and the second fastening portion. The profiled portion is designed at least in sections as a hollow profile with two side walls disposed opposite to each other and two connecting walls disposed opposite to each other which connect the side walls to each other. The connecting walls have an outwardly directed convex curvature.

Abstract: A method for testing a signal path of a first IC formed as a monolithically integrated circuit on a semiconductor body together with a magnetic field sensor and has a signal output and a power supply connection and a test mode state and a normal operating state. A power supply of the first IC is switched off, and a signal output is connected with a reference potential, and the power supply of the first IC is switched on and the signal output is disconnected from the reference potential. Subsequently in a test mode state, a self-test is performed in the first IC and a test pattern is configured at the signal output or at the power supply connection and the test pattern is evaluated by the control unit for testing of the signal path.

Abstract: A method is provided for operating a magnetic field detector circuit, whereby the magnetic field detector circuit is operated alternately in an active state or in a sleep state and the magnetic field detector circuit has a magnetic field measuring device and a wake-up timer, whereby the magnetic field measuring device comprises a magnetic field sensor. In the active state, the magnetic field measuring device is operated with a supply voltage and an output signal is generated by the magnetic field sensor. The magnetic field detector circuit comprises a wake-up timer, whereby the wake-up timer is operated with the supply voltage in the sleep state and a wake-up signal is generated by the wake-up timer after a predetermined sleep interval, and the magnetic field measuring device changes from the sleep state to the active state.

Abstract: The invention relates to an energy efficient, environmentally favorable process for the preparation of brominated butyl rubbers, that uses a bromination agent and a oxidizing agent in order to enhance the utilization of bromine contained in the bromination agent. In a preferred embodiment a common medium for both solution polymerization and subsequent bromination of the rubber is employed.

Abstract: A door impact beam for a door of a motor vehicle includes a first fastening portion configured to be fastened to a first fastening intersection of the door and a second fastening portion configured to be fastened to a second fastening intersection of the door. A profiled portion extends between the first fastening portion and the second fastening portion. The profiled portion is designed at least in sections as a hollow profile with two side walls disposed opposite to each other and two connecting walls disposed opposite to each other which connect the side walls to each other. The connecting walls have an outwardly directed convex curvature.