Abstract: A method for storing an inorganic salt, wherein the inorganic salt has a long service life, and the stability of a salt melt made of the inorganic salt is increased. This is achieved in that the inorganic salt is provided in a liquid state, wherein the inorganic salt comprises anions which decompose when heat is supplied, thereby forming at least one gaseous decomposition product, and the pressure of the gas atmosphere is set such that the gas atmosphere is in chemical equilibrium with the inorganic salt in the liquid state.

Abstract: A method for storing an inorganic salt, wherein the inorganic salt has a long service life, and the stability of a salt melt made of the inorganic salt is increased. This is achieved in that the inorganic salt is provided in a liquid state, wherein the inorganic salt comprises anions which decompose when heat is supplied, thereby forming at least one gaseous decomposition product, and the pressure of the gas atmosphere is set such that the gas atmosphere is in chemical equilibrium with the inorganic salt in the liquid state.

Abstract: A process for producing water-absorbing polymer particles is provided, comprising a) a polymerization step in which an aqueous monomer solution comprising at least one ethylenically unsaturated monomer M which bears acid groups and may have been at least partly neutralized and at least one crosslinker is polymerized to obtain an aqueous polymer gel; b) a pelletization step in which the aqueous polymer gel having a solids content of 35 to 70% by weight and a temperature of 75 to 125° C. is forced from a high-pressure zone through a die plate into a low-pressure zone and pellets are obtained, the pressure differential between the high-pressure zone and the low-pressure zone being 4 to less than 14 bar and the orifice ratio of the die plate being 30 to 80%; c) a drying step in which the pellets are dried to a moisture content of less than 10% by weight; d) a grinding step and a classifying step to obtain water-absorbing polymer particles; and e) surface crosslinking of the water-absorbing polymer particles.

Abstract: A power steering system for a motor vehicle having an electric motor and a transmission drivingly connecting the electric motor to a steering column or a tie rod of the motor vehicle. To provide a low-noise and low-friction power steering system with a variable spatial configuration easy to assemble and disassemble the electric motor includes a spherical motor.

Abstract: A process for producing water-absorbing polymer particles with high free swell rate by polymerizing a monomer solution or suspension comprising an ethylenically unsaturated monomer bearing acid groups, a crosslinker, an initiator and an ethylenically unsaturated ionic surfactant.

Abstract: A shaft comprises two parts. One of these two parts is tube-shaped, and the other is pushed into the tube-shaped part along a main axis. The two parts are fixed to each other for rotation about the main axis and connected to each other in a gliding way along the main axis, by a spline provided between the two parts. One of the two parts comprises a plurality of elongated teeth which are parallel to the main axis and whose cross-sections decrease from the first part towards the second part. Intermediate spaces between neighboring teeth are at least as broad as the teeth. The other of the two parts, at its circumference facing the first part, is made of plastically deformable plastic material, and a counter-profile into which the teeth engage is pressed in the plastic material by intrusion of the teeth during assembly of the two parts.

Abstract: Crosslinked polymer particles having a) a proportion of particles having a particle size of 150 to 300 ?m of at least 20% by weight, b) a free swell rate of the entirety of the polymer particles FSRoverall of at least 0.25 g/g·s, c) a difference ?FSR of at least 0.15, d) a centrifuge retention capacity CRC of at least 25.0 g/g, and e) a permeability of the swollen gel bed SFC of at least 90×10?7 cm3·s/g are disclosed.

Abstract: A process for producing water-absorbing polymer particles with high free swell rate and high permeability by polymerization of an aqueous monomer solution or suspension to give an aqueous polymer gel, wherein a thermal blowing agent essentially free of inorganic acid anions is mixed into the polymer gel, and subsequent thermal drying of the polymer gel.

Abstract: A process for producing water-absorbing polymer particles is provided, comprising a) a polymerization step in which an aqueous monomer solution comprising at least one ethylenically unsaturated monomer M which bears acid groups and may have been at least partly neutralized and at least one crosslinker is polymerized to obtain an aqueous polymer gel; b) a pelletization step in which the aqueous polymer gel having a solids content of 35 to 70% by weight and a temperature of 75 to 125° C. is forced from a high-pressure zone through a die plate into a low-pressure zone and pellets are obtained, the pressure differential between the high-pressure zone and the low-pressure zone being 4 to less than 14 bar and the orifice ratio of the die plate being 30 to 80%; c) a drying step in which the pellets are dried to a moisture content of less than 10% by weight; d) a grinding step and a classifying step to obtain water-absorbing polymer particles; and e) surface crosslinking of the water-absorbing polymer particles.

Abstract: A process for producing water-absorbing polymer particles with high free swell rate and high permeability by polymerization of an aqueous monomer solution or suspension to give an aqueous polymer gel, wherein a thermal blowing agent essentially free of inorganic acid anions is mixed into the polymer gel, and subsequent thermal drying of the polymer gel.

Abstract: Water-absorbing polymer particles are formed from crosslinked polymer chains comprising predominantly polymerized units of at least partly neutralized acrylic acid. They have a) a proportion of particles having a particle size of 150 to 300 ?m of at least 20% by weight, b) a free swell rate of the entirety of the polymer particles FSRoverall of at least 0.25 g/g·s, c) a difference ?FSR of at least 0.15, d) a centrifuge retention capacity CRC of at least 25.0 g/g, and e) a permeability of the swollen gel bed SFC of at least 90×10?7 cm3·s/g. ?FSR is defined as =?FSR=FSR150-300 ?m?FSRoverall in which FSR150-300 ?m represents the free swell rate of the polymer particles having a particle size of 150 to 300 ?m. The absorption capacity of the entirety of the polymer particles is substantially utilized even in the case of segregation of particles of different size.

Abstract: The present disclosure provides a method for cleaning a respirator using a cleaning device of the type having a fluid device and a pressure application device. The method comprises applying a cleaning fluid to the respirator with the fluid device; connecting a gas carrying element of the respirator to a pressure connection of the pressure application device; and applying pressurized gas to the gas carrying element during the application of the cleaning fluid.

Abstract: A shaft comprises two parts. One of these two parts is tube-shaped, and the other is pushed into the tube-shaped part along a main axis. The two parts are fixed to each other for rotation about the main axis and connected to each other in a gliding way along the main axis, by a spline provided between the two parts. One of the two parts comprises a plurality of elongated teeth which are parallel to the main axis and whose cross-sections decrease from the first part towards the second part. Intermediate spaces between neighboring teeth are at least as broad as the teeth. The other of the two parts, at its circumference facing the first part, is made of plastically deformable plastic material, and a counter-profile into which the teeth engage is pressed in the plastic material by intrusion of the teeth during assembly of the two parts.

Abstract: The present disclosure provides a method for cleaning a respirator using a cleaning device of the type having a fluid device and a pressure application device. The method comprises applying a cleaning fluid to the respirator with the fluid device; connecting a gas carrying element of the respirator to a pressure connection of the pressure application device; and applying pressurized gas to the gas carrying element during the application of the cleaning fluid.

Abstract: A cleaning device for cleaning respirators, in particular breathing regulators and/or breathing masks, is proposed. The cleaning device comprises at least one cleaning chamber for receiving at least one respirator. The cleaning device also has at least one fluid device for applying at least one cleaning fluid to the respirator. The cleaning device also has at least one pressure application device with at least one pressure connection. The pressure connection can be connected to at least one gas carrying element of the respirator. The pressure application device is set up for applying pressurized gas to the gas carrying element.

Abstract: Aqueous binders for granular and/or fibrous substrates are based on polyacids and polyols.

Abstract: A process for producing water-absorbing polymer particles with high free swell rate and high permeability by polymerization of an aqueous monomer solution or suspension to give an aqueous polymer gel, wherein a thermal blowing agent essentially free of inorganic acid anions is mixed into the polymer gel, and subsequent thermal drying of the polymer gel.

Abstract: Aqueous binders for granular and/or fibrous substrates comprising as active constituents: a) at least one polymer which is obtainable by free-radical addition polymerization and comprises in copolymerized form ?5.5% and ?20% by weight of an ?,?-ethylenically unsaturated monocarboxylic or dicarboxylic acid [polymer A], b) at least one polymer which is obtainable by free-radical addition polymerization and comprises in copolymerized form ?40% by weight of an ?,?-ethylenically unsaturated monocarboxylic or dicarboxylic acid [polymer B], and c) at least one polyol compound having at least two hydroxyl groups [polyol C].

Abstract: Aqueous binder for granular and/or fibrous substrates based on polyacids, polyols and basic nitrogen compounds.

Abstract: A process for preparing water-absorbing polymer particles, comprising polymerisation of a foamed aqueous monomer solution or suspension, drying, grinding and classification, whereas the process further comprising adjusting the amount of foaming agent in the aqueous monomer solution by admixing the aqueous monomer solution with a foaming agent of 1% to 15% by weight based on the amount of ethylenically unsaturated monomer and keeping the solution on a pressure of 6 bar to 15 bar and then expanding the solution.