Patents by Inventor Theo Fleckenstein
Theo Fleckenstein 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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Publication number: 20040045610Abstract: The invention relates to a liquid distributor in the form of a channel distributor with drainage outlets. To ensure that the uniformity of distribution of the liquid is largely independent of disturbance factors, for example blockages of the drainage outlets, the drainage outlets are in the form of drainage pipes having a cross-section which tapers in the shape of a nozzle. The inner wall of the nozzle-like tapering of the drainage outlets being made of plastic, or another material resistant to the adherence of solids which would block the flow of liquid through the outlet.Type: ApplicationFiled: May 14, 2001Publication date: March 11, 2004Inventors: Franz-Josef Carduck, Theo Fleckenstein, Gerd Goebel, Roland Hourticolon
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Patent number: 5877138Abstract: A scatterable dry cleaning composition containing: (a) cellulose powder adsorbent; (b) ground polyurethane foam absorbent; and (c) water.Type: GrantFiled: October 11, 1996Date of Patent: March 2, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Alexander Ditze, Bernd-Dieter Holdt, Thomas Hahn, Franz Kresse, Theo Fleckenstein
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Patent number: 5783543Abstract: A carpet cleaning composition comprising: (a) a powder-form solid adsorbent; (b) rollable particles of porous material, each particle having a length greater than 1 mm, and a diameter equal to at least 10% of the length of the particle; and (c) water.Type: GrantFiled: October 30, 1996Date of Patent: July 21, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Theo Fleckenstein, Alexander Ditze, Franz Kresse, Thomas Hahn
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Patent number: 5746777Abstract: A scatterable dry cleaning formulation for textiles containing cellulose powder, colloidal silicon dioxide, and water.Type: GrantFiled: January 28, 1997Date of Patent: May 5, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Theo Fleckenstein, Alexander Ditze, Thomas Hahn
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Patent number: 5324871Abstract: The invention relates to a process for the hydrogenation of native fats, oils and fat derivatives, such as fatty acids and fatty acid esters, to fatty alcohols in a fixed-bed reactor, more particularly in co-current, hydrogen being recirculated in a stoichiometric excess, more particularly in an excess of 10 to 100 fold, and the fat, oil or fat derivative passing through the reactor only once. To minimize the specific hydrogen demand without having to accept significant losses in regard to specific reactor load, product selectivity and catalyst life, the hydrogen is passed successively through at least two fixed-bed reactors 4,10 without the gas issuing from the reactors 4 and entering the following reactors 10 being cooled and the fat, oil or fat derivative is simultaneously introduced into the reactors 4,10.Type: GrantFiled: October 21, 1992Date of Patent: June 28, 1994Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Franz-Josef Carduck, Gerd Goebel, Theo Fleckenstein, Udo Kreutzer, Guenther Demmering
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Patent number: 5180858Abstract: The invention relates to a process for the catalytic hydrogenation of liquid saturated and unsaturated C.sub.6-24 fatty acid methyl esters for the production of saturated fatty alcohols and methanol in the presence of gaseous hydrogen and hydrogenation catalysts under pressures of 50 to 300 bar and at temperatures in the range from 160.degree. to 250.degree. C., characterized in that the hydrogenation reaction is carried out in a tube bundle reactor in which isothermal conditions are established by a cooling or heating fluid, the liquid phase and gas phase being passed together as a co-current trickle phase over catalyst packings in the individual tubes of the reactor without any back-mixing, and in that the load per unit volume of the reaction is between 0.2 and 2.5 liters starting material per liter reactor volume per hour and the load per unit area of each individual tube of the reactor is between 1.5 and 24 m.sup.3 starting material per m.sub.Type: GrantFiled: October 24, 1991Date of Patent: January 19, 1993Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Theo Fleckenstein, Gerd Goebel, Franz-Josef Carduck, Guenther Demmering, Hans-Peter Kubersky
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Patent number: 5124491Abstract: In the catalytic hydrogenation of fatty acid methyl esters, the fatty acid methyl esters are continuously reacted with hydrogen under pressures of from 20 to 100 bar and at temperatures of from 160.degree. to 270.degree. C. with molar ratios of hydrogen to fatty acid methyl ester substrate of from 10:1 to 500:1. The reaction is carried out over catalysts which contain from 30 to 40% by weight copper, from 23 to 30% by weight chromium, from 1 to 10% by weight manganese, from 1 to 10% by weight silicon and from 1 to 7% by weight barium (% by weight, based in each case on oxidic catalyst mass) and, if desired, other transition metals in the form of their oxides. After calcination of the components, the catalyst is converted into shaped particulate and/or granulated elements with from 1 to 10% by weight, based on oxidic catalyst, of at least one binder in addition to 1 to 10% by weight graphite. The catalyst is activated with hydrogen or a hydrogen-containing gas mixture.Type: GrantFiled: April 3, 1990Date of Patent: June 23, 1992Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Theo Fleckenstein, Joachim Pohl, Franz J. Carduck
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Patent number: 5076896Abstract: A process for the separation of propylene glycol from a mixture of low-boiling fatty alcohols and propylene glycol which comprises extracting the mixture with water to produce a water-propylene glycol mixture and fractionating the water-propylene glycol mixture to produce propylene glycol that is substantially anhydrous and an apparatus for carrying out the process.Type: GrantFiled: June 13, 1989Date of Patent: December 31, 1991Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Franz-Josef Carduck, Lutz Jeromin, Gerd Geobel, Wilhelm Johannisbauer, Georg Fieg, Theo Fleckenstein
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Patent number: 5043485Abstract: In the catalytic hydrogenation of fatty acid methyl ester mixtures, the mixtures are continuously reacted with hydrogen under pressures of from 100 to 300 bar and at temperatures of from 160.degree. to 270.degree. C. with molar ratios or hydrogen to fatty acid methyl ester mixture of from 10:1 to 500:1. The reaction is carried out over catalysts which contain from 30 to 40% by weight copper, from 23 to 30% by weight chromium, from 1 to 10% by weight manganese, from 1 to 10% by weight silicon and from 1 to 7% by weight barium (% by weight, based in each case on total weight of the oxidic catalyst) and, if desired, other transition metals in the form of their oxides. After calcination of the components, the catalyst is converted into shaped particulate and/or granulated elements with from 1 to 10% by weight, based on oxidic catalyst, of at least one binder in addition to 1 to 10% by weight graphite. The catalyst is activated with hydrogen or a hydrogen-containing gas mixture.Type: GrantFiled: January 11, 1990Date of Patent: August 27, 1991Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Theo Fleckenstein, Joachim Pohl, Franz J. Carduck
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Patent number: 4982020Abstract: In the direct catalytic hydrogenation of glyceride oils, the glyceride oils are continuously reacted with hydrogen under pressures of from 20 to 300 bar and at temperatures of from 160.degree. to 250.degree. C. with molar ratios of hydrogen to fatty acid residues in the glyceride oil substrate of from 10:1 to 500:1, the reaction being carried out over catalysts which contain from 30 to 40% by weight copper, from 23 to 30% by weight chromium, from 1 to 7% by weight barium (% by weight, based in each case on oxidic catalyst mass) and, if desired, other transition metals in the form of their oxides and which, after calcination of the components forming the catalyst mass, are converted into shaped particulate and/or granulated elements with from 1 to 10% by weight, based on oxidic catalyst, of at least one binder, and which have been activated with hydrogen or a hydrogen-containing gas mixture.Type: GrantFiled: December 20, 1989Date of Patent: January 1, 1991Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Franz-Josef Carduck, Jurgen Falbe, Theo Fleckenstein, Joachim Pohl
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Patent number: 4954664Abstract: A process for the catalytic hydrogenation of butterfat where non-deacidified butterfat is continuously reacted with hydrogen under pressures of from 20 to 300 bar and at temperatures of from 180.degree. to 250.degree. C. with molar ratios of hydrogen to fatty acid residue in the butterfat of from 10:1 to 500:1. The reaction is carried out over catalysts which contain from 30 to 40% by weight copper, from 23 to 30% by weight chromium, from 1 to 10% by weight manganese, from 1 to 10% by weight silicon, and from 1 to 7% by weight barium. The percentages by weight in each case are based on the total oxidic mass of the catalyst. Other transition metals, especially zirconium and cerium, are additionally incorporated into the catalyst. The metals in the catalyst are converted to their oxides by calcination. The catalyst is converted into shaped particulate or granulated elements with from 1 to 10% by weight of at least one binder in addition to 1 to 10% by weight graphite.Type: GrantFiled: January 25, 1990Date of Patent: September 4, 1990Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Franz-Josef Carduck, Juergen Falbe, Theo Fleckenstein, Gerd Goebel, Joachim Pohl
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Patent number: 4942266Abstract: A process for the catalytic hydrogenation of liquid fatty acid triglycerides and the simultaneous recovery of fatty alcohols and C.sub.3 diols in the presence of gaseous hydrogen and hydrogenation catalysts under pressures of from 50 to 300 bar and at temperatures in the range from 160.degree. to 250.degree. C., to produce fatty alcohols in at least 99% of the theoretical yield and of 1,2-propanediol in at least 80% of the theoretical yield and a maximum paraffin content of 0.5% of the theoretical yield is disclosed. The hydrogenation reaction is carried out in a tube bundle reactor operated under isothermal conditions through a cooling or heating fluid, the liquid phase being passed as co-current trickle phase with the gaseous phase over catalyst packings in the individual reactor tubes without back-mixing, and in that the load per unit volume of the reactor is selected between 0.2 and 2.5 l starting material per 1 reactor volume per hour and the load per unit area of each individual reactor tube between 1.Type: GrantFiled: March 17, 1989Date of Patent: July 17, 1990Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Theo Fleckenstein, Gerd Goebel, Franz-Josef Carduck, Norbert Bremus, Reinhard Eicher