W.C. HERAEUS GMBH Patent applications |
Patent application number | Title | Published |
20120058043 | PROCESSES AND DEVICES FOR REMOVING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTIONS BY DISTILLATION - In processes for removing ruthenium by distilling RuO | 03-08-2012 |
20110293866 | Active implantable device - One aspect relates to a method for connecting a housing of an active implantable medical device to a head part, whereby an uncured joining agent that is arranged, at least in part, between the housing and the head part is transitioned into a cured joining agent to attain a firmly bonded connection. In one embodiment, the uncured joining agent includes monomers of a (meth)acrylic acid alkyl ester, and the cured joining agent includes at least one polymer of the (meth)acrylic acid alkyl ester. | 12-01-2011 |
20110198983 | COMPOSITE PRODUCED FROM INTERMETALLIC PHASES AND METAL - A method is provided for producing a wire or tape, especially for use as an electrode or electrode tip in spark plugs. The method includes the following steps: (a) producing an intermetallic compound having a melting point above 1700° C.; (b) grinding the intermetallic compound; (c) mixing the intermetallic compound with metal powder; (d) introducing the mixture obtained in step (c) in a tube produced from ductile material; and (e) shaping the tube filled in step (d) to give a wire or tape. Also provided are a wrapped wire or wrapped tape, especially a semifinished product for producing electrodes or electrode tips of spark plugs. | 08-18-2011 |
20110171691 | GENETICALLY MODIFIED STRAINS FOR BIOTRANSFORMATIONS IN ANTHRACYCLINE PRODUCTION - A microbial strain which converts anthracycline metabolites into non-natural anthracycline antibiotics is described. A process for converting anthracycline metabolites into anthracycline antibiotics using a microbial strain is also described. | 07-14-2011 |
20110165041 | PROCESSESS FOR THE RECOVERY OF RUTHENIUM FROM MATERIALS CONTAINING RUTHENIUM OR RUTHENIUM OXIDES OR FROM RUTHENIUM-CONTAINING NOBLE METAL ORE CONCENTRATES - Processes for the recovery of ruthenium from materials containing ruthenium or ruthenium oxides or from ruthenium-containing noble metal ore concentrates, with the steps of
| 07-07-2011 |
20110162871 | SOLDER MATERIAL COMPRISING A METAL STEARATE AND USE OF METAL STEARATES IN SOLDER MATERIALS - Solder materials, such as a solder paste, and contact surfaces for solder connections are provided in which a metal stearate is used as a flux. The metal stearate is applied either as a solid layer on the solder particles or as contact surfaces or is present as a dispersion or solution in a binder. Advantageously, such materials allow one to avoid the use of classical fluxes. In particular, non-resin solder materials can be provided. A simplified storage and processability of the solder materials results, while at the same time producing comparatively better solder connections. The ability to use metal stearates as a flux is achieved if the first oxide of the metals used is formed from pure metal at lower oxygen activity (a | 07-07-2011 |
20110151268 | MATERIAL COMPRISED OF METAL AND LACTIC ACID CONDENSATE AND ELECTRONIC COMPONENT - A material is provided containing a metal and a lactic acid condensate, wherein the metal is selected from the group of copper, silver, and gold. An electronic component having a surface made of metal, ceramic, or oxide may be coated with the material. A method for the production of metallic surfaces on an electronic component is also provided. | 06-23-2011 |
20110129406 | METAL FIBERS FOR CATALYST NON-WOVENS - A metal fiber based on one or several elements from the group of platinum, palladium, rhodium, ruthenium, and iridium with 0 to 30% by weight of one or several additional alloy elements from the group of nickel, cobalt, gold, rhenium, molybdenum, and tungsten, contains 1 to 500 ppm by weight of boron or phosphorus. A non-woven material or netting, in particular for the production of nitrogen oxide or for the production of hydrocyanic acid, is made of such fibers. For the production of fibers based on noble metals having up to 30% by weight of additional alloy metals by drawing the fibers from a melt, the melting point of the metal is reduced by at least 400 ° C., before drawing of the fibers, by additionally alloying with boron or phosphorus, and the boron or the phosphorus is removed again from the fibers. | 06-02-2011 |
20110014399 | METHOD FOR PRODUCING A STIMULATION ELECTRODE - A stimulation electrode is provided having an electrically conducting electrode base member which is partially covered with an electrically insulating ceramic layer. The ceramic layer is formed of an oxide and/or an oxynitride of at least one metal of the group of titanium, niobium. tantalum, zirconium, aluminum and silicon. Various methods are provided for production of the stimulation electrode, including methods in which the ceramic layer is formed in situ by a thermal, chemical or electrochemical oxidation or oxynitridation process. The stimulation electrode may be used as a cardiac pacemaker electrode, a neuro-stimulation electrode, or another human implant. | 01-20-2011 |
20100329922 | INCREASING THE STRENGTH OF IRIDIUM, RHODIUM, AND ALLOYS THEREOF - The addition of 0.5 to 30 ppm boron and 0.5 to 20 ppm calcium to iridium and the Zr- and Hf-free alloys thereof and rhodium and the Zr- and Hf-free alloys thereof surprisingly increases the creep rupture strength at high temperatures, in particular around 1,800° C. | 12-30-2010 |
20100276646 | PT OR PT ALLOY MATERIALS HARDENED BY OXIDE DISPERSION, PRODUCED BY INNER OXIDATION AND HAVING PROPORTIONS OF OXIDE AND GOOD DUCTILITY - A solid body of a metal alloy comprising less than 99% by weight of noble metal and more than 1% by weight of dispersion-strengthening metals is converted for production of a dispersion-strengthened platinum material by at least 90% oxidation of the dispersion-strengthening metals into a dispersion-strengthened platinum material. The dispersion-strengthened platinum material contains a noble metal component and a dispersion-strengthening agent, the proportion by mass of the noble metal component amounting to between 95 and 99% by weight and the noble metal component of platinum or a platinum alloy including at least 55% by weight Pt, 0 to 30% by weight Rh, 0 to 30% by weight Au, and 0 to 40% by weight Pd. The remaining proportion by mass of more than 1% by weight is a dispersion-strengthening agent, which contains at least one metal oxidized at least 90% by weight with oxygen, the metal being selected from the group of Ce, Zr, Sc, and Y. | 11-04-2010 |
20100167408 | Palladium(0)-Dibenzylidene Acetone Complexes - Palladium(0)-dibenzylidene acetone complexes Pd | 07-01-2010 |
20100159396 | METHOD FOR PRODUCTION OF A MEDICAL MARKER - A method is provided for production of a medical marker (4) made of an X-ray-opaque material, including the following steps:
| 06-24-2010 |
20100143977 | Genetically modified strains producing anthracycline metabolites useful as cancer drugs - The invention refers to a microbial strain, which produces anthracycline metabolites at a titre of at least | 06-10-2010 |
20100141181 | WIRE AND FRAME IN PARTICULAR NIOBIUM-BASED FOR SINGLE-SIDE SOCKET LAMPS AND A METHOD FOR THE PRODUCTION AND USE THEREOF - A highly heat resistant wire based on niobium or tantalum or niobium tantalum alloy for single-side socket lamps is enriched, according to the invention, with phosphorus and converted into an annealed state. The wire exhibits a yield strength Rp 0.2 of at least 200 MPa or a tensile strength Rm of at least 300 MPa. For the production of a frame for single-side socket lamps, a metal based on niobium or tantalum or an alloy thereof is doped with phosphorus and the doped metal is cold shaped into a wire, this wire is annealed and formed into a frame. This frame is used for the simultaneous current supply and holding of a burner in a single-side socket lamp. | 06-10-2010 |
20100113258 | Catalytically highly effective precious metal-carboxylate compounds of Ir, Ru, Rh, Pd, Pt and Au - The invention relates to a process for the production of noble metal carboxylate compounds, in which a noble metal is digested with at least one metal salt in a container and the digestion mass is dissolved in a carboxylic acid and the metallic ions introduced by the metal salt are separated from the resulting solution by means of oxalate or an oxalate derivative. | 05-06-2010 |
20100084050 | Lead-Free Solder with Improved Properties at Temperatures >150.degree.C - Lead-free solders based on an Sn—In—Ag solder alloy contain 88 to 98.5 wt. % Sn, 1 to 10 wt. % In, 0.5 to 3.5 wt. % Ag, 0 to 1 wt. % Cu, and a doping with a crystallization modifier, the crystallization modifier preferably being a maximum of 100 ppm neodymium. | 04-08-2010 |
20100055828 | PROCESS AND PASTE FOR CONTACTING METAL SURFACES - For production of an electrically conductive or thermally conductive connection for contacting two elements, an elemental metal, in particular silver, is formed from a metal compound, in particular a silver compound, between the contact surfaces. In this production, the processing temperature for the use of a silver solder can be decreased below 240° C. and the processing pressure can be reduced to normal pressure. A contacting paste for this purpose contains a metal compound, in particular a silver compound, which decomposes below 400° C. while forming elemental silver. As a result, a metal is generated in situ from a chemical compound for producing a contact, which is usable above the temperature necessary for its production. | 03-04-2010 |
20100051319 | CONTROLLING THE POROSITY OF METAL PASTES FOR PRESSURE FREE, LOW TEMPERATURE SINTERING PROCESS - Metal pastes and methods make it possible to produce extremely compact layers between contact surfaces of structural components, which layers are sufficiently elastic to permanently withstand mechanical and thermal stress variations. This is achieved by the porosity of a corresponding contact area being controlled. For this purpose, a metal paste is provided which contains 70-90% by weight of a metal powder, 1-20% by weight of an endothermically decomposable metal compound and 5-20% by weight of a solvent having a boiling point or range above 220° C., the metal paste being compactable exothermically to form a metal contact. | 03-04-2010 |
20100047143 | OXIDATION CATALYST - A catalyst for selective oxidation of hydrocarbons relative to carbon monoxide includes a mixed oxide based on the compound Ce | 02-25-2010 |
20090312825 | SELECTIVE PARYLENE COATING FOR CARDIAC PACEMAKER ELECTRODES - A stimulation electrode is produced having a porous film layer and being partially coated with an insulating parylene (polyparaxylylene) film, whose insulating film has a dielectric breakdown voltage of greater than 100 V. Parylene is deposited on the entire surface of a porous film coating and then partially removed again by plasma. After the partial removal of the parylene, this porous film still has a capacitance of greater than 15 mF/cm | 12-17-2009 |
20090277777 | COLD-PRESSED SPUTTER TARGETS - A sputter target includes a sputter material made of an alloy or a material mixture composed of at least two components which are in a state of thermodynamic disequilibrium. The components are compacted by an isostatic or uniaxial cold-pressing process. | 11-12-2009 |
20090250337 | TUBULAR TARGET HAVING A CONNECTING LAYER ARRANGED BETWEEN THE TARGET TUBE AND THE CARRIER TUBE - A tubular target is provided having a cylindrical carrier tube, at least one target tube arranged on its exterior surface, and a connecting layer arranged between the target tube and the carrier tube. The connecting layer is electrically conductive and has a wetting degree of >90%. | 10-08-2009 |
20090191107 | PROCESSES FOR THE RECOVERY OF RUTHENIUM FROM MATERIALS CONTAINING RUTHENIUM ORRUTHENIUM OXIDES OR FROM RUTHENIUM-CONTAINING NOBLE METAL ORE CONCENTRATES - Processes for the recovery of ruthenium from materials containing ruthenium or ruthenium oxides or from ruthenium-containing noble metal ore concentrates, with the steps of
| 07-30-2009 |
20090191106 | PROCESSES AND DEVICES FOR REMOVING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTIONS BY DISTILLATION - In processes for removing ruthenium by distilling RuO | 07-30-2009 |
20090183987 | Sputter Target Having a Sputter Material Based on TiO2 and Production Method - A sputter target is provided having a sputter material based on TiO | 07-23-2009 |
20090152331 | SOLDER PASTES COMPRISING NONRESINOUS FLUXES - According to the invention, a resin-free solder paste made from a metal powder, particularly soft solder and a gel, is prepared, wherein the gel according to the invention leaves no residue on the metal surface during the remelting of the metal powder. The gel according to the invention is based on a mixture that is stable during storage and that comprises carboxylic acid(s), amine(s), and solvent(s). Important uses are the application of soft solder pastes on power-modules, die-attach, chip-on-board, SiP (System-in-Package), for wafer-bumping, particularly on UBM's (Under-Bump-Metallization), and SMT (Surface Mounted Technology), particularly coated circuits. With the use of resin-free soft solder pastes according to the invention, cleaning is eliminated before a protective coating process after the soldering of an electrical connection, and the formation of pores in solder bumps deposited on UBM's is reduced to less than 20 vol. %. | 06-18-2009 |
20090143588 | QUARTZ GLASS MICRO-PHOTOREACTOR AND SYNTHESIS OF 10-HYDROXYCAMPTOTHECIN AND 7-ALKYL 10-HYDROXYCAMPTOTHECIN - A process for the production of 10-hydroxycamptothecin | 06-04-2009 |
20090139861 | MAGNETIC SHUNTS IN TUBULAR TARGETS - A sputter target has a carrier body and a target material arranged on the carrier body, wherein the carrier body has a rear surface facing away from the target material and the target material has a front surface facing away from the carrier body. A ferromagnetic material is arranged between the front surface and the rear surface. | 06-04-2009 |
20090136403 | DECOMPOSITION OF DINITROGEN MONOXIDE IN OXYGEN-CONTAINING GASES HAVING A MOISTURE CONTENT - Palladium on aluminium oxide carrier is very well-suited for decomposing dinitrogen monoxide-contained, e.g., in anaesthetic gases—in oxygen-containing gases having a moisture content of 5-20% H | 05-28-2009 |
20090134797 | Current Lead-Through for Ceramic Burner in Halogen-Metal Vapor Discharge Lamps - In a halogen-metal vapor lamp having a ceramic housing ( | 05-28-2009 |
20090072063 | Spool Wound with a Gold Alloy Wire Used for a Bonding Process - A spool includes a body and a chromium layer. The body integrally includes a first portion having an annular shape and a second portion having a tubular shape. The body is formed using plastic. The first portion is provided on both sides of the second portion. The chromium layer is plated on the body. The chromium layer has a uniform thickness of about 0.1 μm to about 100 μm. A gold alloy wire is wound on the chromium layer. The chromium layer has a glossy surface. The spool is combined with a bonding device such that the spool electrically connects the bonding device to the gold alloy wire wound on the chromium layer. The shape of the spool is not easily changed by an external impact. When the gold alloy wire is wound on the spool, a scratch is not formed on the spool. Furthermore, the cost required for forming the spool is relatively small so that the spool may be used as an expendable supply. As a result, a recycling process is not required. | 03-19-2009 |
20090058219 | SLIP RING FOR CONTINUOUS CURRENT TRANSFER - A slip ring has a substrate material and a sliding contact surface made of gold or a gold alloy. The sliding contact surface is stabilized by a support base. The slip ring is used in slip ring transmitters, in particular in wind power plants or industrial robots, for transmitting control signals and control currents and generator currents. An extended service life, in conjunction with improved quality, a reduced drop in voltage and considerable savings in the amount of gold used can be achieved with the slip ring. | 03-05-2009 |
20090022621 | BONDING WIRE - The invention relates to a gold alloy containing 99 wt. %, preferably 99.9 wt. % gold, and 1 to 1000 ppm, preferably 10 to 100 ppm calcium, and 1 to 1000 ppm, preferably 10 to 100 ppm ytterbium or europium or a mixture of ytterbium and europium, as well as a method for producing a homogeneous gold alloy containing europium and/or ytterbium. | 01-22-2009 |
20080317948 | Method for Producing a Stimulation Electrode - A stimulation electrode is provided having an electrically conducting electrode base member which is partially covered with an electrically insulating ceramic layer. The ceramic layer is formed of an oxide and/or an oxynitride of at least one metal of the group of titanium, niobium. tantalum, zirconium, aluminum and silicon. Various methods are provided for production of the stimulation electrode, including methods in which the ceramic layer is formed in situ by a thermal, chemical or electrochemical oxidation or oxynitridation process. The stimulation electrode may be used as a cardiac pacemaker electrode, a neuro-stimulation electrode, or another human implant. | 12-25-2008 |
20080295925 | PT/PD ALLOY WIRES, STRIPS OR RESHAPED PARTS HARDENED BY OXIDE DISPERSION, AND PROCESS OF PRODUCING THE SAME - A wire, strip or reshaped part is produced from an alloy based on platinum, palladium or a mixture of platinum and palladium and hardened by oxide dispersion. The wire, strip or reshaped part cross-section exhibits a peripheral zone in which at least one relatively easily volatilized oxide generator is depleted by at least 25%. In addition, a process is provided for production of such a wire, strip or reshaped part, in which a porous skin is produced thermally on the wire, strip or reshaped part, and the porous skin is compacted by conversion into a soft or impermeable skin. | 12-04-2008 |
20080295749 | METHOD AND DEVICE FOR BURNING-OFF PRECIOUS METAL-CONTAINING MATERIALS - A recycling furnace and method are provided for processing potentially explosive precious metal-containing materials having organic fractions that combust with great energy, the furnace including a switching facility for alternating operation of a burning-off chamber of the furnace between: (A) pyrolysis or carbonization under protective furnace gas in an atmosphere comprising maximally 6 wt-% oxygen, and (B) oxidative combustion of the organic fractions including carbon. The furnace has indirect heating and a control that determines the end of the pyrolysis or carbonization by a sensor and controls the switching facility to supply air or oxygen to the interior of the furnace. Steps (A) and (B) are carried out sequentially in the furnace chamber, wherein neither the batch is changed, nor the furnace is opened. After the end of step (A) is determined, step (B) proceeds right after the pyrolysis or carbonization by supplying air or oxygen. A dosing of liquid or liquefied substances during the pyrolysis is controlled by at least one parameter of post-combustion. Thermal post-combustion is used for two furnace chambers, one operated for pyrolysis or carbonization and the other operated as a combustion chamber. | 12-04-2008 |
20080220202 | LAMINATED SUBSTRATES FOR MOUNTING ELECTRONIC PARTS AND METHODS FOR MAKING SAME - A method is provided for producing a laminated substrate for mounting semiconductor chips. At least respective metal and plastic structure films having respective different recurrent contours are laminated together in such a way that a material strip is obtained. The lamination is followed by perforations or cuttings, and the method includes at least one of the following steps:
| 09-11-2008 |
20080213123 | Doped Iridium with Improved High-Temperature Properties - The invention relates to an iridium alloy of at least 85% by weight iridium, at least 0.005% by weight molybdenum, 0.001 to 0.6% by weight hafnium and, if necessary, rhenium, the sum of molybdenum and hafnium being between 0.002 and 1.2% by weight, and to a process for the production of an iridium alloy, an IrMo and an IrHf master alloy, respectively, being produced in the electric arc and immersed into an iridium melt, if necessary together with Re. | 09-04-2008 |