Abstract: In general, the present invention relates to an electro-conductive paste comprising a metal additive and solar cells obtainable therefrom by application of the paste to a p-type doped face. More specifically, the present invention relates to electro-conductive pastes, solar cell precursors, processes for preparation of solar cells, solar cells and solar modules. The present invention relates to a precursor comprising the following paste constituents: a. A Si wafer with at least one p-type doped face and at least one n-type doped face; b. A conductive paste comprising the following paste constituents: i. at least about 70 wt. % Ag particles, based on the paste, ii. a vehicle, iii. a glass, iv. a metal compound comprising a metal M and which is one or more selected from the group consisting of: an organic metal oxide, a metal oxide, an organic metal compound and a silver metal oxide; wherein the conductive paste b. is superimposed on a p-type doped face.

Abstract: Device for the mixing of polymethylmethacrylate bone cement and for storing a monomer liquid and a cement powder as starting components of the bone cement, comprising a cartridge having an internal space closed on one side by a mobile dispensing plunger; a monomer container for a monomer liquid and/or a connector for attachment of a monomer container which can be opened in the device so that the monomer liquid flows from the monomer container into the device; and a connecting conduit through which the monomer liquid can be guided into the internal space of the cartridge; having a pumping plunger that can be shifted axially in the hollow cylinder arranged in the hollow cylinder, which can be used to push monomer liquid from the hollow cylinder through the connecting conduit into the internal space of the cartridge by actuating the pumping plunger.

Abstract: Alloy for the manufacturing of jewels or clock components with minimum concentrations of gold of 75 wt %, of copper between 5% and 21%, of silver between 0% and 21%, of iron between 0.5% and 4% and vanadium between 0.1% and 2.0%, intended to increase the tarnishing-resistance of alloys with a minimum content of gold of 75 wt % under environments in which sulphur- and chlorine-compounds are present.

Abstract: A vacuum mixing device for mixing PMMA bone cement from a monomer liquid and a cement powder, the vacuum mixing device comprising at least one cartridge comprising an evacuable interior for mixing of the bone cement, a mixing device for mixing the content in the interior of the at least one cartridge, which is arranged movably in the interior, a receptacle for receiving a separate container containing the monomer liquid or comprising an integrated container containing the monomer liquid, an opening device, which is arranged in the region of the receptacle in a manner movable relative to the receptacle so that, by moving the opening device, a separate container arranged in the receptacle is openable by means of the opening device, or the opening device is arranged in the region of the integrated container in a manner movable relative to the integrated container so that, by moving the opening device, the integrated container is openable by means of the opening device, a pump, in which a movable plunger for gene

Abstract: A modular articulated spacer system provides for screw-based assembly of an articular spacer intended to replace an artificial joint temporarily, whereby the articulated spacer system comprises at least two modules connectable by means of a screw connection, whereby a first module of the articular spacer system comprises a surface for formation of a sliding surface of the joint of the articular spacer and a second module of the articular spacer system comprises a stem for connection to a bone. The modules are connectable by means of the screw connection comprising at last one screw-locking device for each screw connection, whereby the screw-locking device is connected to one of the modules or is provided in the form of the same part as one of the modules.

Abstract: The invention relates to a mixing device for mixing PMMA bone cement from a monomer liquid and a cement powder, the mixing device comprising at least one cartridge having an evacuable interior for mixing of the bone cement, a mixing device for mixing the content in the interior of the at least one cartridge, which is arranged movably in the interior, a receptacle for receiving a separate container containing the monomer liquid or comprising an integrated container containing the monomer liquid, an opening device, which is arranged in the region of the receptacle in a manner movable relative to the receptacle so that, by moving the opening device, a separate container arranged in the receptacle is openable by means of the opening device, or the opening device is arranged in the region of the integrated container in a manner movable relative to the integrated container so that, by moving the opening device, the integrated container is openable by means of the opening device, a pressure pump, in which a movable

Abstract: A device and/or method stores, mixes, and applies polymethylmethacrylate bone cement, wherein the device and/or method comprising a first container for a first pasty component, a dispensing plunger that is arranged such that it can be shifted in the first container and serves for extruding the content of the first container through a dispensing tube opposite from the dispensing plunger. The dispensing tube can be rotated and shifted in longitudinal direction through a feed-through in a side of the first container opposite from the dispensing plunger. A mixing facility is arranged in the first container, is secured to the dispensing tube, and is movable in the first container by moving the dispensing tube. At least one second container for at least one second component is arranged on the first container, whereby the internal space of the at least one second container is closed with respect to the internal space of the first container by means of a closure, which is openable.

Abstract: The invention relates to an electro-conductive paste comprising coarse SiO2 particles in the preparation of electrodes in solar cells, particularly in the preparation of electrodes in MWT solar cells, particularly in the preparation of the metal wrap through, or plug, electrode in such solar cells. In particular, the invention relates to a solar cell precursor, a process for preparing a solar cells, a solar cell and a module comprising solar cells. The invention relates to a solar cell precursor at least comprising as precursor parts: i) a wafer (101) with at least one hole (315) with a Si surface (113); ii) an electro-conductive paste (105) at least comprising as paste constituents: a) metallic particles; b) an inorganic reaction system; c) an organic vehicle; and d) inorganic oxide particles having no glass transition temperature below about 750° C. or a glass transition temperature which is at least about 50° C.

Abstract: The invention relates to a layered structure (10) comprising the following layers: a) a first substrate layer (2), wherein the first substrate layer (2) has a first surface (4) and a second surface (6) and is configured as a dielectric; b) a first electrically conductive layer (8) which overlaps at least in part the first substrate layer (2) at least on the first surface (4) of the first substrate layer (2), wherein the first electrically conductive layer (8) comprises an electrically conductive polymer, wherein the first electrically conductive layer (8) has at least one first part region (18) and at least one further part region (20), wherein the at least one first part region (18) has a higher bonding strength to the substrate layer (2) than to the at least one further part region (20).

Abstract: The invention relates to a method for producing an antibiotic bone cement, whereby, in a step A), a bone cement base powder with a water content of less than or equal to 1.0% by weight is mixed with trometamol-fosfomycin to form a bone cement powder, and, in a step X), the bone cement powder is dried to a water content of less than or equal to 1.0% by weight. The invention also relates to a bone cement powder that was produced according to said method and contains a bone cement base powder and trometamol-fosfomycin, whereby the bone cement powder has a water content of less than or equal to 1.0% by weight. The bone cement powder is free-flowing and does not clump and can be used for producing bone cements that meet ISO 5833.

Abstract: A kit for preparing a paste-like bone cement, comprising a paste A and a paste B, wherein paste A contains (a1) at least one monomer for radical polymerization, (a2) at least one polymer that is soluble in (a1); and (a3)at least one polymerization initiator; and paste B contains (b1) at least one monomer for radical polymerization; (b2) at least one polymer that is soluble in (b1); and (b3) at least one polymerization accelerator; wherein at least one of the pastes A and B contains as component (a4) and/or (b4) at least one filling agent that is poorly soluble or insoluble in (a1) and/or (b1), respectively, and wherein the filling agent is a particulate inorganic filling agent possessing a BET surface of at least 40 m2/g.

Abstract: Processes produce catalytically highly effective noble metal carboxylate compounds or their solutions that comprise A) a noble metal carboxylate, wherein the noble metal is selected from the group consisting of ruthenium, platinum, palladium, rhodium and gold, and B) at least one compound selected from the group consisting of oxalic acid, a salt of oxalic acid, a derivative of oxalic acid and a salt of the derivative of oxalic acid. The process digests the noble metal with alkaline earth peroxide to produce a digestion mass and dissolves the digestion mass in a carboxylic acid or a carboxylic acid diluted with a protic solvent to produce a resulting solution, whereby alkaline earth ions are separated off as salt of an oxalic acid or salt of oxalic acid derivatives, and the processes do not include any BaSO4 precipitation and filtration of barium sulphate.

Abstract: A compressed gas motor (1) comprising a vibration body (10) made to vibrate by a compressed gas being guided through the compressed gas motor (1), and a plunger (12) supported as in a bearing by a restoring element (14) in spring-like manner, the vibration body (10) and the plunger (12) being positioned and supported such that the vibration body (10) repeatedly hits against the plunger (12) during the vibration and displaces it against the restoring element (14), whereby the motion of the plunger (12) is utilized as the drive of the compressed gas motor (1).

Abstract: A mixing device comprises a mixing space for mixing bone cement, at least one mixing element supported in the mixing space such that it can rotate, a gear for rotating the at least one mixing element, and at least one elastically deformable energy-storing element that is connected to the gear such that the gear can be driven by an elastic energy from the energy-storing element and such that the at least one mixing element can be rotated in the mixing space by means of the gear upon the release of elastic energy from the energy-storing element. Additionally, a vacuum mixing system and mixing method comprise the mixing device for mixing the bone cement.

Abstract: The invention relates to dental micro-applicators having a body with a distal and a proximal end, whereby, on the proximal end, an application aid is provided, at least in part, with at least one additive selected from metals, metal-containing compounds, and organometallic compounds for affecting the polymerisation of dental materials, as well as a method for the production thereof and a kit comprising the applicator and a dental adhesive.

Abstract: A strip-shaped substrate made from a film includes a plurality of units for producing chip carriers. Each unit has a chip island for fixing a semiconductor chip, electrodes for electrical connection of the semiconductor chip, and through-openings for structuring the unit. At least one through-opening forms an anchoring edge for a casting compound for encapsulating the semiconductor chip. A surface section of the film abutting the through-opening is chamfered to form the anchoring edge. The anchoring edge protrudes past the side of the film on which the chip island is arranged.

Abstract: The invention relates to an articulating joint spacer for temporary replacement of a joint, whereby the joint spacer comprises two spacer parts which each comprise one sliding surface on which the spacer parts, in the patient-inserted state, touch against each other in mobile manner and roll off on each other, and the remaining spacer parts are made, at least in part, of a second bone cement that contains at least one water-soluble antibiotic. The invention also relates to a method for producing a two-part articulating joint spacer, in which a sliding surface is formed in both spacer parts from a low-abrasion first bone cement and at least the surfaces of the remaining spacer parts, at least 50% thereof, are formed with a second bone cement that contains at least one water-soluble antibiotic.

Abstract: The invention describes a bone cement with antimycotic efficacy based on organic polymers, such as polymethylmethacrylate. The bone cement comprises an antimycotic agent, in particular amphotericin B, that is released from the polymerized bone cement in the presence of water or aqueous media, such as body fluids. According to one alternative, the antimycotic agent is present in particulate form and is encapsulated, at least in part, by a mixture of at least one 1-methylamino-1-deoxy sugar alcohol and at least one fatty acid. In addition, a method for the production of a mixture comprising an antimycotic agent, such as amphotericin B particles, and 1-methylamino-1-deoxy sugar alcohol and at least one fatty acid is proposed. Preferably, the antimycotic agent is encapsulated, at least partially, by 1-methylamino-1-deoxy sugar alcohol and at least one fatty acid.

Abstract: The invention relates to a method for producing spacers from a bone cement comprising the following chronological steps: A) controlling the temperature of a casting mold to a first temperature; B) filling a cement dough, which has a temperature that is lower than the temperature of the temperature-controlled casting mold, into the temperature-controlled casting mold; C) allowing the cement dough to cure in the casting mold to form a spacer; and D) separating the casting mold from the spacer after the spacer is cured. The invention also relates to a device for producing spacers from a bone cement through said method comprising a casting mold and a temperature control facility for controlling the temperature of the casting mold, whereby at least 80% of the inner surface of the casting mold comprises a negative image of the spacer surface to be produced.

Abstract: A power electronics module includes a semiconductor element and a support with a functional surface for indirectly connecting to the semiconductor element. A palladium barrier layer is formed directly or indirectly on the functional surface, and the semiconductor element is directly or indirectly connected to the barrier layer face facing away from the functional surface by a layer of sintering silver paste. A silver layer is can be formed on the barrier layer, and a nickel layer can be formed between the functional surface and the barrier layer.