Patents by Inventor Horst Scholz
Horst Scholz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8357824Abstract: The present invention relates to a process for obtaining neopentyl glycol by hydrogenating cracking of high-boilers occurring in the production process in the presence of copper-chromite catalysts. The hydrogenating cracking proceeds in the absence of solvent at a temperature of 140 to 220° C. and at pressures of 7 to 28 MPa.Type: GrantFiled: June 25, 2009Date of Patent: January 22, 2013Assignee: Oxea GmbHInventors: Rolf-Peter Schulz, Horst Scholz, Thomas Hupperich, Peter Heymanns, Tonia Weber, Alexander Kaufmann, Kurt Schalapski, Heinz Strutz
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Patent number: 8173847Abstract: Aldehydes are produced by unmodified rhodium catalyzed hydroformylation process in a homogeneous organic phase using a solution of unmodified rhodium catalyst and an organic acid in a total amount, calculated as acid equivalent, of from greater than 3 moles to 3000 moles of acid per mole of rhodium. The organic acid is selected from: saturated aliphatic monocarboxylic acids having from 5 to 13 carbon atoms in the molecule; saturated aliphatic dicarboxylic acids having from 5 to 13 carbon atoms in the molecule; sulphonic acids having from 1 to 12 carbon atoms in the molecule; and combinations thereof. Use of the process can lead to either a significant increase in conversion without reducing selectivity for the desired aldehyde or a reduction in the specific use of rhodium.Type: GrantFiled: October 28, 2008Date of Patent: May 8, 2012Assignee: Oxea GmbHInventors: Andreas Fischbach, Klaus Schmid, Christoph Balzarek, Wolfgang Dukat, Sandra Fürmeier, Rainer Lukas, Horst Scholz, Edgar Storm
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Publication number: 20110184212Abstract: The present invention relates to a process for obtaining neopentyl glycol by hydrogenating cracking of high-boilers occurring in the production process in the presence of copper-chromite catalysts. The hydrogenating cracking proceeds in the absence of solvent at a temperature of 140 to 220° C. and at pressures of 7 to 28 MPa.Type: ApplicationFiled: June 25, 2009Publication date: July 28, 2011Applicant: OXEA GMBHInventors: Rolf-Peter Schulz, Horst Scholz, Thomas Hupperich, Peter Heymanns, Tonia Weber, Alexander Kaufmann, Kurt Schalapski, Heinz Strutz
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Publication number: 20100256422Abstract: Aldehydes are produced by unmodified rhodium catalyzed hydroformylation process in a homogeneous organic phase using a solution of unmodified rhodium catalyst and an organic acid in a total amount, calculated as acid equivalent, of from greater than 3 moles to 3000 moles of acid per mole of rhodium. The organic acid is selected from: saturated aliphatic monocarboxylic acids having from 5 to 13 carbon atoms in the molecule; saturated aliphatic dicarboxylic acids having from 5 to 13 carbon atoms in the molecule; sulphonic acids having from 1 to 12 carbon atoms in the molecule; and combinations thereof. Use of the process can lead to either a significant increase in conversion without reducing selectivity for the desired aldehyde or a reduction in the specific use of rhodium.Type: ApplicationFiled: October 28, 2008Publication date: October 7, 2010Inventors: Andreas Fischbach, Klaus Schmid, Christoph Batzarek, Wolfgang Dukat, Sandra Fürmeier, Rainer Lukas, Horst Scholz, Edgar Storm
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Patent number: 7074304Abstract: A process for purifying alicyclic alcohols by distillation, wherein the alicyclic alcohols are distilled in the presence of from 1 to 550 ppm of acidic compounds.Type: GrantFiled: December 13, 2002Date of Patent: July 11, 2006Assignee: Celanese Chemicals Europe GmbHInventors: Wolfgang Dukat, Peter Lappe, Klaus Schmid, Horst Scholz, Edgar Storm
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Publication number: 20030183502Abstract: A process for purifying alicyclic alcohols by distillation, wherein the alicyclic alcohols are distilled in the presence of from 1 to 550 ppm of acidic compounds.Type: ApplicationFiled: December 13, 2002Publication date: October 2, 2003Inventors: Wolfgang Dukat, Peter Lappe, Klaus Schmid, Horst Scholz, Edgar Storm
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Patent number: 5738127Abstract: A process for removing contaminating coatings from metal surfaces in which the metal surface to be cleaned is brought into contact with an aqueous alkaline solution containing as an additive 0.1 to 10% by weight, based on the aqueous alkaline solution, of at least one compound of the formulaR.sup.1 --O--(CH.sub.2 --CHR.sup.3 --O--).sub.x R.sup.2 Iin which R.sup.1 and R.sup.2 are individually alkyl of 1 to 15 carbon atoms, R.sup.3 is hydrogen or methyl and x is an integer from 1 to 25.Type: GrantFiled: April 16, 1996Date of Patent: April 14, 1998Assignee: Hoechst AktiengesellschaftInventors: Peter Heymanns, Waldemar Kascha, Ernst Prott, Horst Scholz
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Patent number: 5168837Abstract: The invention is directed to a work apparatus having a fan wheel driven by a motor mounted in a housing. A fan cover covers the fan wheel and defines a plurality of air-inlet openings arranged in a grid-like pattern forward of the fan wheel through which a first component flow of cooling air passes to the fan wheel. The fan cover has an inside wall surface and a collar formed on the inside wall surface. An air-conducting wall is mounted on the inside wall surface and defines cooling channels communicating with the space within the collar for conducting a second component flow of cooling air to the fan wheel. The fan cover and the collar together with the air-conducting wall conjointly define a single unitary piece devoid of any fasteners which are separate from the fan cover, collar and air-conducting wall.Type: GrantFiled: June 19, 1992Date of Patent: December 8, 1992Assignee: Andreas StihlInventor: Horst Scholz
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Patent number: 4865743Abstract: For producing solution/diffusion membranes, homogeneous dense films prepared by melt extrusion or casting from synthetic polymers, having a melting temperature above 140.degree. C., a glass transition temperature above 0.degree. C. and long time stability against boiling ethanol are irradiated with accelerated electrons and submitted to a subsequent radical graft copolymerization. After graft polymerzation, the functional groups are converted into the dissociated salts.Type: GrantFiled: December 29, 1986Date of Patent: September 12, 1989Assignee: GFT Gesellschaft fur Trenntechnik mbhInventors: Guido Ellinghorst, Bernd Goetz, Axel Niemoeller, Horst Scholz, Hartmut E. A. Brueschke, Guenter Tusel
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Patent number: 4819779Abstract: A centrifugal clutch for use especially in a motor-driven chain saw. The clutch includes a carrier which is provided for attachment to a drive shaft and on which radially moveable centrifugal weights are mounted. The weights can move radially outwardly under centrifugal force and counter to spring force and come into contact engagement with the drum which is the output end of the clutch. A restraining device is provided between each centrifugal weight 2 and carrier 1 so that the engagement of the clutch does not occur until after an elevated speed has been reached. Disengagement of the clutch occurs as in known clutches somewhat above the idling speed. The restraining device is configured so that it does not clear the outward path of the centrifugal weight until a certain minimum centrifugal force has been exceeded. This has the effect that the clutch engages suddenly at mid range speeds and can transmit a very high initial torque to the output tool driven through the clutch.Type: GrantFiled: April 8, 1987Date of Patent: April 11, 1989Assignee: Andreas StihlInventors: Hans Nickel, Michael Wissmann, Horst Scholz
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Patent number: 4410998Abstract: A system for generating in-phase alternating current components which are fed into a medium held in a melting trough and flow in the medium between electrodes and counterelectrodes immersed in the medium to effect resistance heating. One embodiment of the system includes a supply voltage source, and a plurality of transformers each having a primary winding and a secondary winding, with the primary windings being connected together in series and to the source, each secondary winding being connected between a respective electrode and counterelectrode to provide a respective alternating current component, and each winding having a number of turns corresponding to the desired relative amplitudes of the current components.Type: GrantFiled: May 20, 1981Date of Patent: October 18, 1983Assignee: Licentia Patent-Verwaltungs-GmbHInventors: Fritz Germann, deceased, Eduard Kuntz, Reinhold Muller, Horst Scholz