Abstract: Oximido ester-functional siloxanes, including those with oxamido ester side chains, are produced by reacting an alkoxy oxamido ester silane with water, optionally in the presence of further alkoxy silanes.

Abstract: A circuit arrangement (20) having an active measuring voltage (UG) for determining an insulation resistance (RF) or a complex-valued insulation impedance (ZF) of an ungrounded power supply system (12) against ground potential (PE), the circuit arrangement (20) having a measuring path (24) which runs between an active conductor (L1, L2) of the power supply system (12) and the ground potential (PE) and includes a measuring-voltage generator (VG) for generating the measuring voltage (UG), a measuring resistance (RM) for capturing a measured voltage (UM) and a coupling resistance (RA), the circuit arrangement (20) having a signal evaluation circuit (26) which includes a signal input for evaluating the measured voltage (UM) and a ground connection (GND). The ground connection (GND) is connected to a ground potential (PE).

Abstract: Aqueous emulsions contain (A) oxamidoester-functionalized organopolysiloxanes having units of the formula R1a(OR2)bZcSiO(4?a?b?c)/2 ??(I) where Z is a group of the formula —Y—NRX—CO—CO—O—R3??(II), with the proviso that the sum a+b+c is ?3 and each molecule contains at least one radical Z. (B) emulsifiers and (C) water.

Abstract: The invention relates to compositions containing dye, containing (A) at least one dye, (B) at least one organopolysiloxane containing units of the general formula Ra(R1O)bSiO[4?(a+b)]/2 (I), wherein the radicals and indexes have the meaning indicated in claim 1, provided that the total is a+b?3 and in more than 80% of all units, the formula (I) is equal to 2, and (C) at least one siloxane-organo-copolymer. The invention further relates to a method for the production thereof and to the use thereof in the dyeing of polymer materials.

Abstract: A method and device for determining a division of a total insulation resistance and of a total system leakage capacitance in an ungrounded power supply system. The basic idea is to determine how the total insulation resistance is divided into partial insulation resistances and how the total system leakage capacitance is divided into partial system leakage capacitances between the active conductors of the ungrounded power supply system from displacement voltages measured between each of the active conductors of the ungrounded power supply system based on values determined in advance for the total insulation resistance and for the total system leakage capacitance of the ungrounded power supply system. By evaluating the displacement voltages in terms of their changes in amplitude, their frequency and their phasing, conclusions can be drawn as to the division of the total insulation resistance and of the total system leakage capacitance between the individual active conductors.

Abstract: An occlusive peristaltic pump type fluid pump that includes a pump rotor rotatable in the fluid pump. The fluid pump includes a base, a first cover element fastened to an upper side of the base and a second cover element fastened to a lower side of the base, and at least one pressure element accommodated in the base and including a pressure member for occluding a fluid-guiding hollow conductor portion against a rounded bearing surface on a housing portion of the fluid pump. The at least one pressure element is linearly guided in the effective direction of an occlusion force by the first cover element and the second cover element.

Abstract: Polymer compositions containing a polyamide polymer and a high molecular weight organopolysiloxane copolymer containing amide, urethane, urea, or thiourea groups exhibit high tensile strength but are soft elastomeric thermoplastics.

Abstract: ,Oxamidoester-functional alkylalkoxysilanes are prepared in high yield by the reaction of an alkylalkoxysilane with an oxalic diester.

Abstract: Polysiloxane/polymer copolymers are used in conjunction with conventional polymer binders for production of wood fiber composites, and improve processing characteristics as well as end product properties.

Abstract: The invention relates to circuit arrangements for reducing potential-induced degradation in photovoltaic modules of a photovoltaic generator, said circuit arrangements comprising an insulation monitoring device for a temporally continuous insulation monitoring of the photovoltaic generator. Furthermore, the invention relates to a photovoltaic system comprising a circuit arrangement for reducing potential-induced degradation in photovoltaic modules, said photovoltaic system comprising a photovoltaic generator and an insulation monitoring device for a temporally continuous insulation monitoring of the photovoltaic generator. Different solutions are proposed which enable reducing potential-induced degradation while simultaneously continuously monitoring insulations. The circuit arrangements according to the invention rest upon an insulation monitoring device interacting with measures based circuit technology for influencing potentials in a photovoltaic module.

Abstract: The disclosure relates to a drive means for non-resonant linear and/or rotary positioning of an object, comprising at least two piezoelectric or electrostrictive actuator groups, where-in a first actuator group moves a first runner portion relative to a stationary base of the drive means according to the principle of an inertia drive, and by means of the second actuator group a second runner portion is moved relative to the first runner portion with a limited range of movement in the high-resolution scan mode, wherein a common electrical control signal is applied to the first and second actuator groups.

Abstract: The invention relates to a process for producing oxamide-functional siloxanes by reacting (A) siloxanes of the general formula (I) with (B) siloxanes selected from (B1) linear siloxanes of the general formula HO[SiR2O]tH??(II) and (B2) cyclic compounds of the general formula (SiR42O)s??(III), wherein the radicals and indices have the definitions specified in claim 1, in the presence of (C) catalysts.

Abstract: Oximido ester-functional siloxanes, including those with oxamido ester side chains, are produced by reacting an alkoxy oxamido ester silane with water, optionally in the presence of further alkoxy silanes.

Abstract: Methods and devices for insulation monitoring of an ungrounded IT power supply system having at least two phase conductors includes determining an insulation resistance separately for each phase conductor using a separate response value. In one embodiment of the invention, relevant current and voltage distributions are calculated. In another embodiment, a change time window is set within which a second response value is activated. In yet another embodiment, an option of shutting down/continuing operation of the IT power supply system is offered.

Abstract: Methods and devices for insulation monitoring of an ungrounded IT power supply system having at least two phase conductors includes determining an insulation resistance separately for each phase conductor using a separate response value. In one embodiment of the invention, relevant current and voltage distributions are calculated. In another embodiment, a change time window is set within which a second response value is activated. In yet another embodiment, an option of shutting down/continuing operation of the IT power supply system is offered.

Abstract: A pallet understructure, in particular for transport and storage containers for liquids, which are equipped with an inner container made of plastic, with a closable filling neck and a draining neck for connecting a tapping armature, wherein the understructure has an outer jacket made of a metal grid or sheet metal, and a bottom (13) for supporting the inner container, corner feet and central feet arranged between the corner feet, as well as a bottom cross member (16), wherein at least the outer jacket and the bottom cross member are attached to at least two central feet, wherein the respective central foot, the outer jacket and the bottom cross member are coupled in a form-fitting fashion with the aid of a screw (45), wherein there is a bracket (28), which reaches around the bottom cross member (16) and around a peripheral edge of the outer jacket, wherein the screw (45) penetrates legs (29, 30) of the bracket.

Abstract: A peristaltic pump for an apparatus for extracorporeal blood treatment, especially for a dialysis machine, for delivering fluid in the apparatus is disclosed. The peristaltic pump includes a rotor driven to rotate about a rotor axis and a pump casing surrounding the rotor at least in part and including a supporting surface being configured to be curved around the rotor axis, wherein an elastically deformable fluid line is adapted to be positioned between the rotor and the supporting surface and is deformed between the rotor and the supporting surface while forming a cross-sectional constriction for fluid delivery by rotation of the rotor, the pump casing having a modular design and including a supporting surface module forming the supporting surface and a casing module adapted to be coupled to the former and surrounding the rotor at least in part.

Abstract: The invention relates to an electric circuit arrangement for the input protection circuit of a switching power supply, having a surge protection circuit, which is contacted with a supply voltage on an input side and to which a current-compensated choke is connected as a suppression component, said current-compensated choke being connected to a rectifier circuit comprising an energy storage means on an output side. Via modifications to the circuit technology, such as using two varistors as surge protections, and by using suitable switching elements, such as silicon diodes as rectifier elements and ceramic capacitors as an energy storage means, the input protection circuit is designed such that the requirements, which an expanded input voltage range demands of a surge circuit, are fulfilled. Furthermore, the invention relates to a switching power supply having an electric circuit arrangement according to the invention for the input protection circuit.

Abstract: A peristaltic pump for an apparatus for extracorporeal blood treatment, especially for a dialysis machine, for conveying fluid in the apparatus is disclosed. The peristaltic pump includes a rotor driven by a drive shaft, the rotor interacting with an elastically deformable fluid line so as to form a cross-sectional constriction which is displaced along the fluid line for conveying fluid by rotation of the rotor, wherein the rotor is coupled to the drive shaft by a coupling structure so as to transmit a torque, wherein the coupling structure couples the rotor and the drive shaft with a play in the direction of rotation relative to each other.