Dichtl
Alexander Dichtl, Lorrach DE
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20100249401 | Process for the preparation of sterically hindered nitroxyl ethers - The present invention relates to a novel process for the preparation of a sterically hindered nitroxyl ether from the corresponding sterically hindered nitroxyl radical by reacting it with a carbonyl compound and a hydroperoxide. The compounds prepared by this process are effective stabilizers for polymers against harmful effects of light, oxygen and/or heat, as flame-retardants for polymers and as polymerization regulators. | 09-30-2010 |
Alexander Dichtl, Loerrach DE
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20150191581 | POLYGLYCOL BIS-[3-(7-TERT-BUTYL-2-OXO-3-PHENYL-3H-BENZOFURAN-5-YL-)PROPANO- YL] DERIVATIVES AS STABILIZERS OF ORGANIC MATERIAL - The invention relates to a compound of the formula (I-1) | 07-09-2015 |
Gottfried Dichtl, Nieder-Olm DE
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20100233069 | METHOD AND SYSTEM FOR CONCENTRATING WASTE SULPHURIC ACIDS FROM NITRATION PROCESSES - Disclosed is a method for recovering diluted waste sulfuric acid containing impurities from nitration processes, a highly concentrated nitric acid required in the nitration process being produced in association with the nitration process by means of extractive rectification with concentrated sulfuric acid which is re-concentrated in order to be reutilized. According to the inventive method, the waste sulfuric acid from the nitration process is fed to the top of a first, indirectly heated stripping column, optionally together with another waste sulfuric acid in the form of a DNT washing acid, and is divided into an overhead product containing nitric acid and nitro-organic compounds as well as a prepurified sulfuric acid in the bottom product. The prepurified sulfuric acid withdrawn from the bottom of the first stripping column is fed to the top of a second, serially connected additional indirectly heated stripping column, into the bottom zone of which another waste sulfuric acid is fed in the form of a diluted sulfuric acid recovered from the nitric acid concentration system such that the prepurified sulfuric acid from the first stripping column is further purified in the second stripping column and is preconcentrated along with the diluted sulfuric acid recovered from the extractive rectification of nitric acid. | 09-16-2010 |
20120168298 | METHOD AND PLANT FOR REPROCESSING WASTE SULPHURIC ACIDS FROM NITRIDING PROCESSES - The invention relates to a method for reprocessing waste acid from methods for producing nitro-aromatics, in particular for producing dinitrotoluene (DNT) or trinitrotoluene (TNT), to recover concentrated and purified sulfuric acid and nitric acid, wherein in a first stage, the waste acid is separated in a stripping column countercurrently with water vapor from the bottom of the stripping column into at least one vapor phase, which contains nitric acid and possibly nitro-organics, and a pre-concentrated sulfuric acid, and the vapor phase and the pre-concentrated sulfuric acid are condensed and/or reprocessed in downstream method stages, wherein in the first stage of the method, in addition to the stripping, according to the invention the nitric acid contained in the stripping vapor is concentrated in the presence of additional concentrated sulfuric acid so that nitric acid in a highly concentrated form suitable for feeding back into the nitriding process is obtained directly in the first stage. | 07-05-2012 |
Jürgen Dichtl, Augsburg DE
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20090284154 | Low-Pressure Gas Discharge Lamp With a Reduced Argon Proportion In the Gas Filling - The invention relates to novel gas fillings of low-pressure gas discharge lamps for reducing the starting and arc drop voltages at low Hg vapor pressures. In favor of a mixture consisting of Ne and Kr, the Ar portion of the gas filling is considerably reduced. | 11-19-2009 |
20100002427 | Illuminating Device Comprising a Lamp and a Reflector - A lighting device with at least one lamp and at least one reflector, wherein at least regions of a reflective surface of the reflector are in the form of an involute of a circle of a partial element of the lamp. | 01-07-2010 |
Jürgen Dichtl, Augsburg DE
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20090284154 | Low-Pressure Gas Discharge Lamp With a Reduced Argon Proportion In the Gas Filling - The invention relates to novel gas fillings of low-pressure gas discharge lamps for reducing the starting and arc drop voltages at low Hg vapor pressures. In favor of a mixture consisting of Ne and Kr, the Ar portion of the gas filling is considerably reduced. | 11-19-2009 |
20100002427 | Illuminating Device Comprising a Lamp and a Reflector - A lighting device with at least one lamp and at least one reflector, wherein at least regions of a reflective surface of the reflector are in the form of an involute of a circle of a partial element of the lamp. | 01-07-2010 |
Marius Dichtl, München DE
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20090322071 | Security Element - The present invention relates to a security element for security papers, value documents and the like, having a micro-optical moiré magnification arrangement having | 12-31-2009 |
Marius Dichtl, Muenchen DE
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20080197295 | Device And Method For Producing Resist Profiled Elements - The invention relates to a device and a method for producing resist profiled elements. According to the invention, an electron beam lithography system is used to produce an electron beam, the axis of the beam being essentially perpendicular to a resist layer in which the resist profiled element is to be produced. The electron beam can be adjusted in terms of the electron surface dose in such a way that a non-orthogonal resist profiled element can be produced as a result of the irradiation by the electron beam. | 08-21-2008 |
Markus Dichtl, Muenchen DE
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20130028413 | Method and Device for Generating Random Wait States - A random source for generating a random number r with a bit length k, r=r | 01-31-2013 |
Matthias Dichtl, Eurasburg DE
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20090058147 | ROOF MODULE FOR A VEHICLE AND INSTALLATION METHOD THEREFOR - The invention relates to a roof module for a vehicle with an outer skin ( | 03-05-2009 |
20090217608 | ROOF MODULE WITH A VENTILATION DUCT - The invention relates to a roof module with at least one ventilation duct, the ventilation duct ( | 09-03-2009 |
20130283727 | ARRANGEMENT FOR CLOSING AN OPENING IN A VEHICLE AND METHOD FOR PRODUCING SUCH AN ARRANGEMENT - An arrangement for closing an opening in a vehicle and method for producing such an arrangement. In an arrangement for closing an opening in a vehicle, comprising a pane and an anti-shatter film attached to the pane, in the border region of the pane, the pane and the anti-shatter file are provided with a foam encapsulation. The foam encapsulation is arranged at least particularly spaced apart from an edge of the anti-shatter film, which edge is formed on the pane. | 10-31-2013 |
20140084636 | Plastic component of a roof opening system - A method for manufacturing a sliding-roof frame of a roof-opening system of a motor vehicle in a tool having at least one mold cavity. One embodiment comprises the steps of: inserting at least one semifinished part configured in the shape of a panel into the tool; deep-drawing the semifinished part in the tool for configuring at least one deep-drawn section of the sliding-roof frame, wherein the semifinished part is formed from a glass-fiber reinforced thermoplastic and the step of deep drawing is a thermoforming process; then, introducing a plastic material into the mold cavity of the tool for forming at least one formed section, which is injection-molded or foamed, and for bonding said formed section to the deep-drawn section; and demolding the sliding-roof frame from the tool. | 03-27-2014 |