Abstract: Described is a façade structure, having a sub-structure that is formed from vertical and/or horizontal profiled supports, is located in front of a building wall or is anchored in a fixed manner in the ground or in the building wall. Façade panels made of ceramic material are secured to the sub-structure via panel holders (13). For securing the panel holder (13) to the sub-structure, the sub-structure has a vertical flange (14), in which a vertical row of holes (16) is realized by a plurality of elongated holes (14l) located one above another, wherein the elongated holes (14l) each extend at an acute angle to the horizontal and are located parallel to one another, and the row of holes (16) is located between two parallel extending guide ribs (14f), which protrude forward from the vertical flange (14f).

Abstract: A curtain-type facade structure is described, comprising a fixedly supported substructure of vertical or horizontal basic profiled supports and crossing horizontal or vertical profiled supports mounted thereon, panel holders which are fastened to the supporting profiles, and facade panels which are retained by means of the panel holders. The panel holder is composed of separate components, one of the components being designed as a basic holder and another of the components being designed as an elastic clip. The elastic clip latches with the basic holder and forms a seat for the facade panels.

Abstract: A process for the purification of crude glycerin utilizing ion exclusion chromatography fractionation, and one or more dewatering steps under moderate temperatures and pressures.

Abstract: The present invention relates to the use of monodisperse, macroporous chelating resins in the recovery of metals in hydrometallurgical processes, in particular in resin-in-pulp processes.

Abstract: The subject of the present invention is a method for refining of polyols, preferably glycerol, by means of monodispersed ion exchangers in a purification unit of ion exclusion process and a mixed bed.

Abstract: The present invention relates to the use of monodisperse, macroporous anion exchangers of type I or type II in hydrometallurgical processes for winning metals of value.

Abstract: A curtain-type facade structure is described, comprising a fixedly supported substructure of vertical or horizontal basic profiled supports and crossing horizontal or vertical profiled supports mounted thereon, panel holders which are fastened to the supporting profiles, and facade panels which are retained by means of the panel holders. The panel holder is composed of separate components, one of the components being designed as a basic holder and another of the components being designed as an elastic clip. The elastic clip latches with the basic holder and forms a seat for the facade panels.

Abstract: Process for removal of organic solvents from bead polymers, where the bead polymers are subjected to distillation of the organic solvent with addition of a water-soluble carboxylic acid.

Abstract: A cutting device for rod-shaped workpieces has two actuating levers each in the form of a two-arm pivot lever. The two-arm pivot levers each have a first arm as an actuator and a second arm having a shearing edge. The actuators move the shearing edges relative to one another. The pivot levers each have an end face. The end faces rest against one another in the shearing position. The second arms each have a detachable cutting insert, and the shearing edges are arranged on the cutting inserts. The actuators can be engaged by a drive device for pivoting the actuators in opposite direction relative to one another.

Abstract: The present invention relates to a process for producing weakly acidic cation exchangers of the polymethacrylic acid type by alkaline saponification of a crosslinked copolymer of alkyl methacrylate and methacrylic acid.

Abstract: The present invention relates to a process for producing weakly acidic cation exchangers of the polymethacrylic acid type by alkaline saponification of a crosslinked copolymer of alkyl methacrylate and methacrylic acid.

Abstract: A method of manufacturing electronic or opto-electronic or micromechanic components by providing a vacuum where the external surface of a wall is exposed to ambient air and the inner surface enclosed as a processing area. A base body of a part to be manufactured is introduced into the processing area and a low energy plasma discharged is generated in the process area, the ion energy at the surface of the base body is between 0 and 15 eV in order to introduce a reactive gas. Subsequently, the reactive gas treats the base body in order to separate the processing area from an inner surface of the wall and enclosing the processing area during the treatment.

Abstract: The present invention relates to a process for the preparation of silver-containing polymer beads, characterized in that I) a mixture of a) styrene b) crosslinker c) organic silver salt d) free-radical initiator and, if appropriate, e) inerting agent is produced, and II) the resultant mixture is cured in an aqueous phase at an increased temperature to form polymer beads.

Abstract: The present invention relates to a process for the preparation of silicon-dioxide-containing polymer beads by producing a mixture of styrene, crosslinker, finely divided surface-modified silicon dioxide, free-radical initiator and, if appropriate, inert agent and curing the resultant mixture in aqueous phase at elevated temperature to give a polymer bead, the silicon-dioxide-containing polymer beads themselves, and also uses thereof.

Abstract: A process for the vacuum treatment of workpieces, includes loading the workpieces into a treatment facility, surface treating the workpieces in at least one vacuum station of the facility grouped as a station batch and controlling at least the timing of the process by a freely programmable process controller unit. At least two stations operating each on workpiece batches can be grouped as respective station batches and be different with respect to number of workpieces. The workpieces can be transported to and from the grouped stations. An embodiment of vacuum treatment system for such a process includes at least one vacuum treatment station for workpieces grouped as a station batch. A transport system supplies the vacuum station with workpieces. A process controller unit has an output operationally connected to a drive arrangement for the transport system. The unit controls operating timing of the treatment system and is freely programmable.

Abstract: A synthetic leather made of a nonwoven fabric impregnated and/or coated with a polymer, with a surface weight of 100 to 500 g/m2, and a tensile strength greater than 300 N/5 cm in the lengthwise and the crosswise direction, where the nonwoven fabric is made up of melt-spun multi-component endless filaments, aerodynamically stretched and directly laid up to form a nonwoven material, having a titer less than 2 dTex, and wherein the multi-component endless filaments, after preliminary bonding, are split and bonded by at least 90% to produce supermicro endless filaments having a titer less than 0.2 dTex.

Abstract: A cutting device for rod-shaped workpieces has two actuating levers each in the form of a two-arm pivot lever. The two-arm pivot levers each have a first arm as an actuator and a second arm having a shearing edge. The actuators move the shearing edges relative to one another. The pivot levers each have an end face. The end faces rest against one another in the shearing position. The second arms each have a detachable cutting insert, and the shearing edges are arranged on the cutting inserts. The actuators can be engaged by a drive device for pivoting the actuators in opposite direction relative to one another.

Abstract: A process for the continuous preparation of very highly concentrated hydrogen peroxide having a content of greater than 80 wt.%, especially over 98 wt.%, by suspension crystallization and after-treatment of the H2O2 crystals. The after-treatment takes the form of countercurrent washing in a hydraulic or mechanical washing column with a packed crystal bed. Hydrogen peroxide is disclosed having a concentration of from 99.9 to 100 wt.% and a content of TOC, nitrate, phosphate, nickel and tin of in each case less than 4 mg/l.

Abstract: Pressing tongs have at least two pressing jaws wherein at least one of the pressing jaws is configured to be moved from a closed position into an open position. At least one first connector is provided to connect the pressing tongs to a motor-driven actuating device. At least one second connector is provided to connect the pressing tongs to a manual actuating device. The same type of pressing tongs can thus be operated manually as well as motor-driven.

Abstract: Monodisperse cation-exchangers and anon-exchangers are conditioned by a process and thereafter used as catalysts and for the production of bisphenols.