Abstract: A method for operating a vehicle crane having a lower chassis with boom supports and having an upper chassis with a counterweight in which a live view of the surroundings of the vehicle crane is displayed to the driver. To provide a possibility of operating the vehicle crane that permits safe and simplified manuvering and use, the live view is created at least by way of cameras arranged on the lower chassis, markings indicating the movement ranges of the boom supports and the pivot range of the upper chassis are superimposed to scale on the live view, where the markings are hard-programmed crane-specific overlays and the live view is a crane-specific view that is calibrated with regard to dimensions.

Abstract: The present invention relates to a method for transporting a liquid F by means of a pump P, wherein the liquid F comprises at least 10% by weight of a (meth)acrylic monomer, the pump P has a pump space (3), the pump space (3) comprises at least one transport element (4) for transporting the liquid F, the transport element (4) is connected to a drive shaft (6) in such a way that the drive shaft (6) can transmit a torque to the transport element (4), the mounting of the drive shaft is effected by means of at least two sliding bearings (5) in the pump space (3) and the sliding bearings (5) are composed of tungsten carbide.

Abstract: A method for operating a vehicle crane having a lower chassis with boom supports and having an upper chassis with a counterweight in which a live view of the surroundings of the vehicle crane is displayed to the driver. To provide a possibility of operating the vehicle crane that permits safe and simplified manuvering and use, the live view is created at least by way of cameras arranged on the lower chassis, markings indicating the movement ranges of the boom supports and the pivot range of the upper chassis are superimposed to scale on the live view, where the markings are hard-programmed crane-specific overlays and the live view is a crane-specific view that is calibrated with regard to dimensions.

Abstract: The invention relates to a process for producing superabsorbent polymer particles, comprising polymerization of a monomer solution, drying the resulting polymer gel and grinding the dried polymer gel with a roll mill, wherein the rolls of the roll mill are cleaned by reducing the feed rate to the roll mill, and if the deflection and/or the power consumption increases above a setpoint, operating the roll mill with reduced feed, and increasing the feed rate to the roll mill.

Abstract: A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt dryer, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is introduced into the air circulation belt dryer by means of an oscillating conveyor belt and that guide devices are located at the edges of the conveyor belt.

Abstract: The invention relates to a process for producing superabsorbent polymer particles, comprising storing acrylic acid in at least one tank (B1) at a production site for acrylic acid and in at least one tank (B2) at a production site for superabsorbent polymer particles, wherein the at least one tank (B1) at the production site for acrylic acid and the at least one tank (B2) at the production site for superabsorbent polymer particles are interconnected by one single pipe line (3) and the flow inside the pipe line (3) is temporary reversed during interruptions of the production superabsorbent polymer particles.

Abstract: The invention relates to a process for producing superabsorbent polymer particles, comprising polymerization of a monomer solution, wherein the monomer solution comprises partly neutralized acrylic acid formed by continuous mixing of acrylic acid and an aqueous solution of a base, the apparatus for preparing the partly neutralized acrylic acid comprises a vessel (B), and the feed line to vessel (B) ends inside vessel (B) below the liquid Level of the partly neutralized acrylic acid.

Abstract: The invention relates to a process for producing superabsorbent polymer particles, comprising polymerization of a monomer solution, wherein the monomer solution comprises partly neutralized acrylic acid formed by continuous mixing of acrylic acid and an aqueous solution of a base, the apparatus for preparing the partly neutralized acrylic acid comprises a vessel (B), and the vessel (B) has a cylindrical shape and a torispherical bottom.

Abstract: A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt drier, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is introduced into the air circulation belt drier by means of an oscillating conveyor belt, the underside of the revolving conveyor belt is freed of adhering polymer gel by means of at least one stripper device, and the underside of the revolving conveyor belt is sprayed with water.

Abstract: A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising the steps of continuously preneutralizing a monomer while cooling and partly recycling the preneutralized monomer into the preneutralization, continuously heating the preneutralized monomer by means of a heat exchanger and continuously postneutralizing the heated monomer, wherein the monomer solution or suspension prior to entry into the polymerization reactor is at a temperature of 70 to 99° C. and the temperature of the heating medium used in the heat exchanger is less than 160° C.

Abstract: A process for producing superabsorbent particles by polymerizing a monomer solution, comprising the steps of continuously polymerizing the monomer solution on the continuous belt of a belt reactor, comminuting the polymer gel obtained, rinsing the polymer gel obtained on the underside of the belt reactor into a separation unit with water, separating the polymer gel from the water in the separation unit and recycling the polymer gel into the comminution, wherein the polymer gel has a swelling capacity in water of at least 100 g/g, the dwell time of the polymer gel in the rinse water is less than 40 minutes, and the separation unit has openings with a clear width of at least 1 mm.

Abstract: A process for producing superabsorbent particles, comprising drying of a polymer gel, removal of incompletely dried polymer particles, comminution of the polymer particles removed, recycling of the comminuted polymer particles and storage of the recycled polymer particles.

Abstract: The present invention provides for a system that makes use of a system power supply enable switch controlled by a near field communications (NFC) frontend with energy harvesting. In one embodiment, RF power in the 13.56 MHz band generated by a NFC counterpart (such as a mobile phone) is detected by the energy harvesting unit being part of the battery-unpowered NFC communication device. After activation, the system can perform actions required to communicate to the presented device (i.e., the NFC counterpart). Later, the system can switch itself into the unpowered state again. In another embodiment, this feature can also be used to control an NFC protection circuitry very quickly after the NFC device is exposed to an external HF (high frequency) field.

Abstract: A dispenser for discharging liquid to pasty masses, has a pump head and a pump chamber, having a pump chamber wall and an inlet valve and an outlet valve. The pump chamber is formed by a bellows part, on which the inlet valve is integrally formed. The inlet valve is retained of retaining arms, which extend in the peripheral direction of the inlet valve and are connected to the pump chamber wall and to the inlet valve, and the inlet valve forms a peripherally extending valve lip, which freely protrudes in cross-section. The inlet valve extends in the shape of a circle segment in a longitudinal cross-section of the bellows part, having an upper dome segment and the lower valve lip. The connection to the retaining arms is formed at a height center of the inlet valve or at an offset therefrom toward a free edge of the valve lip.

Abstract: A process for producing water-absorbing polymer particles, wherein surface postcrosslinked water-absorbing polymer particles are remoisturized and delivered pneumatically, and wherein the time between remoisturization and pneumatic delivery is less than one hour.

Abstract: A dispenser for discharging liquid to pasty masses, has a pump head and a pump chamber, having a pump chamber wall and an inlet valve and an outlet valve. The pump chamber is formed by a bellows part, on which the inlet valve is integrally formed. The inlet valve is retained of retaining arms, which extend in the peripheral direction of the inlet valve and are connected to the pump chamber wall and to the inlet valve, and the inlet valve forms a peripherally extending valve lip, which freely protrudes in cross-section. The inlet valve extends in the shape of a circle segment in a longitudinal cross-section of the bellows part, having an upper dome segment and the lower valve lip. The connection to the retaining arms is formed at a height center of the inlet valve or at an offset therefrom toward a free edge of the valve lip.

Abstract: The present invention provides for a system that makes use of a system power supply enable switch controlled by a near field communications (NFC) frontend with energy harvesting. In one embodiment, RF power in the 13.56 MHz band generated by a NFC counterpart (such as a mobile phone) is detected by the energy harvesting unit being part of the battery-unpowered NFC communication device. After activation, the system can perform actions required to communicate to the presented device (i.e., the NFC counterpart). Later, the system can switch itself into the unpowered state again. In another embodiment, this feature can also be used to control an NFC protection circuitry very quickly after the NFC device is exposed to an external HF (high frequency) field.

Abstract: A process for producing water-absorbing polymer particles, comprising the steps of thermal cracking of bionaphtha in the presence of steam, removing propene and at least some of the propane, gas phase oxidation to give acrylic acid and polymerization to give water-absorbing polymer particles.

Abstract: It is described a method for a wireless Near Field Communication (NFC) between a NFC enabled device (110) and a NFC capable mobile telecommunication end device (120). The provided method comprises transferring data from the NFC enabled device (110) to the NFC capable mobile telecommunication end device (120). Thereby, at least some of the transferred data represent a code in a descriptive web interface language. Further, a NFC capable mobile telecommunication end device (120) and a NFC enabled device (110) are described for participating in such a NFC method. Furthermore, a system (100) comprising such a NFC enabled device (110) and such a NFC capable mobile telecommunication end device (120) and a computer program for enabling such a NFC method are described.

Abstract: A process for removing metallic impurities from a product mass flow comprising water-absorbing polymer particles by means of bar magnets, wherein the water-absorbing polymer particles comprise a surfactant and have direct contact with the bar magnets.