Abstract: Polyether ester amides having high water vapor permeability are disclosed. The amides which are prepared simply and reliably, crystallize quickly, are biodegradable and/or compostable, and are suitable in the manufacture of films by extrusion.

Abstract: A method for treating materials with plasma-inducing high-energy radiation, especially laser radiation, where an area of vapor capillaries (13) of a work piece (10) is observed with a depth definition detecting device over the entire thickness of the work piece and time-dependent measurement of plasma radiation intensity is carried out. In order to accurately monitor the quality of material treatment, the method is implemented in such a way that the momentary plasma intensities are measured at no less than two measurement points which are parallel to an axis (11) of inducing radiation (12). Predetermined capillary parameters are assigned to the measured plasma intensities and control of the material treatment is conducted depending on the capillary geometric parameters.

Abstract: A solenoid valve for tank ventilation in motor vehicles, comprising a magnetic yoke with at least one valve opening and with a cooperating spring-loaded valve member for opening and closing the at least one valve opening. The valve element constitutes a magnetic armature of an electromagnet and is disposed between the magnetic yoke of the electromagnet and a hollow, cylindrical magnet core of the electromagnet. A valve seat body which is separate from the magnetic yoke and contains the at least one valve opening is disposed in an axial opening in the magnetic yoke, and on a side remote from the valve member. The valve seat body rests against a housing wall of the solenoid valve by use of a support element made of a damping material.

Abstract: A connector for use in peritoneal dialysis, includes a base body having a first tube for attachment of a container for dialysis solution, and a second tube for attachment of a peritoneal catheter. Positioned in a passageway between the first tube and the second tube is a closure piece which so interacts with an actuator that an operation of the actuator causes the closure piece to move in a linear direction from a first position into a second position in which the fluid flow between the first tube and the second tube is closed while the first tube is sealed off.

Abstract: The present invention relates to a dialysis machine with a device for preparing dialysis solutions. Simple and reliable preparation of dialysis fluids of different concentrations is achieved by the fact that the device has a detector device, at least two connections and at least two interchangeable storage containers to hold the solution ingredients to be metered, each being connected to at least one connector, and with the connectors being connectable to the connections, and with the connectors or the areas of a connecting tube near the connectors having identification means which can be detected by the detector device. The present invention also relates to a connector for connecting a storage container with solution ingredients to a medical apparatus, where the connector or areas of a connecting tube near the connector has identification means. The present invention also relates to a method of detecting a connection of a solution ingredient storage container.

Abstract: Thermoplastic starch compositions formed by converting native starch or starch derivatives into thermoplastic starch by at least one hydrophobic biodegradable polymer that functions as a plasticizer for starch. The hydrophobic biodegradable polymer may be a polymer selected from the following list: an aliphatic polyester, a copolyester with aliphatic and aromatic blocks, a polyester amide, a polyester urethane, a polyethylene oxide polymer and/or a polyglycol, and/or mixtures of these. When the starch, such as in particular native starch or derivatives thereof, is mixed in the melt with the hydrophobic biodegradable polymer as a plasticizer or swelling agent, to homogenize the mixture, the water content is reduced to less than about 5% by weight based on the weight of the mixture.

Abstract: The present invention relates to a compostable adhesive, to a method of producing the same, and to the use of the adhesive for the adhesive bonding of materials.

Abstract: In an awning cloth comprising a plurality of webs of awning cloth that are joined along their longitudinal outer edges, wherein each web of awning cloth is formed by warp threads and weft threads of synthetic or natural filament yarns, provision is made for the webs of awning cloth to have warp threads of thermoplastic material in the region of their longitudinal outer edges, and for the overlapping edge regions of adjacent webs of awning cloth of this type to be welded to one another using said thermoplastic warp threads under at least partial melting of the same.

Abstract: In an awning fabric, to attain good UV stability and weather resistance with the lowest possible weight per unit area, provision is made for it to be produced from polyester (PES) filament yarn (continuous filament yarn) and/or polyester monofilament yarn.

Abstract: A control unit (50) makes a single control signal available for driving the through-flow control valves (TEV1, TEV2) (51, 52). Through-flow valve (TEV2) has a larger maximum through flow than through-flow control valve (TEV1). A delay circuit is indicated by the phantom outline (52′) and is mounted at the valve stage TEV2 (52). The delay circuit includes an electric delay element (53) with the aid of which the original control signal is delayed in time by an amount &Dgr;t1 relative to the control signal of control valve (TEV1). The resulting delayed signal is supplied to an AND-gate (54) together with the original control signal. Accordingly, a control signal is present at the output of the AND-gate for the control valve (TEV2). The time delay makes possible the exclusive activation of the through-flow control valve (TEV1) (51) at a low pulse duty factors. In this way, a high small quantity meterability is achieved.

Abstract: A valve for metered introduction of fuel, volatilized from a fuel tank of an internal combustion engine, into the engine, having a valve housing which has an inflow neck for connection to a fuel tank or to an adsorption filter downstream of the tank for the volatilized fuel, and having an outflow neck for connection to the engine, having a valve member accommodated between the inflow neck and the outflow neck in the interior of the valve housing, which valve member is actuatable by an electromagnet that has a magnet core, and which cooperates with a valve seat embodied on a valve seat body, is characterized in that the valve housing includes a first housing part, closed on the inflow side by a protective screen, in/on which the electromagnet, the valve member, the valve seat body and the outflow neck are provided, and a second housing part, on which the inflow neck is disposed and which can be secured to the first housing part.

Abstract: For converting native starch or starch derivatives into thermoplastic starch, added to the starch is at least one hydrophobic biodegradable polymer. This hydrophobic biodegradable polymer, which serves as a plasticizer or swelling agent, may be a polymer selected from the following list: an aliphatic polyester, a copolyester with aliphatic and aromatic blocks, a polyester amide, a polyester urethane, a polyethylene oxide polymer and/or a polyglycol, and/or mixtures of these. When the starch, such as in particular native starch or derivatives thereof, is mixed in the melt with the hydrophobic biodegradable polymer as a plasticizer or swelling agent, to homogenize the mixture, the water content is reduced to <1% by weight based on the weight of the mixture.

Abstract: A fuel tank ventilation valve for a Laval nozzle, which has a sensitive regulation of the through flow quantity. The valve has a valve seat which is embodied on a valve seat body which has at least one opening that can be closed by the valve member. A cross section of the at least one opening is embodied as essentially smaller than an entry cross section of the Laval nozzle that is disposed spaced apart from the valve seat. The valve is suited for a metered introduction of fuel that has evaporated from a fuel tank of a mixture-compressing internal combustion engine with externally supplied ignition into an intake tube of the engine.

Abstract: This invention relates to reinforced thermoplastic moulding compositions prepared from biodegradable polymers, for example aliphatic or polyester amides, aliphatic polyester urethanes, and to the use thereof for the production of mouldings and to the mouldings, wherein the reinforcing materials are selected from wood flour, fibres of natural origin, minerals of natural origin, cellulose and cellulose derivatives.

Abstract: Known tank systems have an adsorption filter in order to accept degassing constituents of the fuel in a fuel tank. Such tank systems have to be tested for leaks and a pump appliance is provided for this purpose. The pump appliance is fitted to a ventilation conduit of the adsorption filter in order to supply a defined volume to the tank system so that an increase in pressure in the tank system is effected. In order to determine whether the tank system is pressure-tight, ample time is left after the pressure build-up in order that, if pressure decays, the conclusion can be drawn that there is a leak. The pump appliance according to the invention possesses an electromagnetic valve which has a vacuum connection connected to an induction pipe of an internal combustion engine in order to adjust, alternately, vacuum and ambient pressure in a pump space so that the pressure forces move a pump diaphragm in order to pump air into a ventilation conduit of an adsorption filter.

Abstract: An internal combustion engine that has an intake device with a turbocharger compressor device with a valve in a bypass line that bypasses the compressor device. To assure a simple, economical installation of the valve in a way secured against relative rotation, the valve is secured to a tubular receiving element, by means of a bayonet mount, formed by the valve and receiving element. The valve is intended for internal combustion engines that are equipped with a turbocharger compressor device.

Abstract: A tank venting system for motor vehicles, having an internal combustion engine supplied from a fuel tank. A filter housing with an adsorption filter, and an air inlet and an air outlet that can be connected to a venting neck of the fuel tank. An air pump device for error diagnosis, which is integrated with a pump housing that has a pump inlet and a pump outlet. To attain a compact design of the tank venting system that is economical in terms of installation space, the pump housing is mounted with the pump outlet oriented coaxially to the air inlet on the filter housing and secured on the filter housing by means of spring-elastic fastening elements. The transition between the pump outlet and the air inlet is sealed off in airtight fashion.

Abstract: A simplified, economical, noise-abating mode of securing a unit embodied for instance as a valve. For securing the unit, the unit has a housing with a first portion having a first encompassing outer face and at least one second portion having at least one second encompassing outer face, wherein a first sealing ring can be mounted on the first outer face, and the first portion and first sealing ring can be introduced into a recess of an installation wall. A second sealing ring can be mounted on the second outer face of the second portion, and the second portion and second sealing ring can likewise be introduced into the recess, so that the support of the unit in the recess is effected by means of the first and second sealing rings without the first and second outer faces of the unit resting on inner faces of the recess.

Abstract: A process for the manufacture of cladded metal pipes facilitates joining of a tube blank and a coaxially disposed pipe section received therein, for subsequent extrusion of a resultant tube blank-pipe combination to form an internally-clad pipe of desired dimension. The pipe section, which is inserted into the tube blank, is expanded radially by internally directed pressure, while force is axially applied to maintain the expansion of the pipe section following removal of the applied internal pressure and axial force. A mechanically joined tube blank-pipe combination thus formed is extruded to form a finished pipe of desired profile in which a diffusion bond is present between material layers comprising the internally-clad pipe corresponding to the pipe section and the tube blank.

Abstract: A magnet valve having a valve seat body that has a valve opening with a valve seat. A spring-loaded valve member cooperates with the valve seat, in which the valve member forms the magnet armature of an electromagnet and is disposed between the valve seat body, acting as the check yoke of the electromagnet, and a hollow-cylindrical magnet core of the electromagnet. A valve member has a coaxial through opening, and having a damper element, disposed on the valve member, of elastic damping material that forms a sheathlike lining of the through opening that extends outward to cover one face end of the valve member and on the other face end of the valve member protrudes past this valve member, longitudinally continuous axial grooves open toward the through opening are made in the valve member and filled with damping material which protrudes past the second end face of the valve member, in order to assure long-term damping of switching noises.