Patents by Inventor Albert Kohl
Albert Kohl 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: 5120608Abstract: Magnetic recording media consist of a nonmagnetic substrate and at least one magnetizable layer which is firmly applied thereon and is based on a polyurethane binder which may be crosslinked with a polyisocyanate, not less than 50% by weight of the binder consisting of a low molecular weight branched polyurethane having OH-containing urea groups at the chain ends, and the frictional properties of the binder being improved and its friction reduced by the incorporation of perfluoro groups.Type: GrantFiled: August 23, 1990Date of Patent: June 9, 1992Assignee: BASF AktiengesellschaftInventors: Michael Bobrich, August Lehner, Albert Kohl, Rudolf Suettinger, Uwe Keppeler, Werner Lenz, Hermann Roller, Helmut Kopke, Guenther Schulz
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Patent number: 5085889Abstract: Magnetic recording media are produced by dispersion of powdered magnetic material in a mixture of solvents, organic polymer binders, dispersants and further conventional additives in a stirred ball mill and subsequent aftertreatment in a ball mill containing grinding media, application of the resulting dispersion as a layer to a substrate and subsequent consolidation of the layer.Type: GrantFiled: March 16, 1990Date of Patent: February 4, 1992Assignee: BASF AktiengesellschaftInventors: Horst Platz, Peter Engelhardt, Friedrich Sommermann, Albert Kohl, Juergen Klausmann, Reinhold Baur, Peter Heilmann, Hermann Roller
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Patent number: 5064721Abstract: Magnetic recording media consist of a nonmagnetic base and at least one matnetizable layer which is firmly applied thereon and is based on a magnetic material finely dispersed in a binder, consisting of not less than 50% by weight of a polyurethane, and further conventional additives, wherein the magnetizable layer also contains a saturated, branched hydrocarbon.Type: GrantFiled: October 31, 1988Date of Patent: November 12, 1991Assignee: BASF AktiengesellschaftInventors: August Lehner, Albert Kohl, Hermann Roller, Werner Lenz, Ludwig Kreitner, Helmut Kopke, Friedrich Sommermann, Ernst Ricker
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Patent number: 4953254Abstract: A mobile cleaner apparatus comprising a container for a cleaning preparation and an associated pressure pump which are integrated into a mobile and steerable chassis. The chassis has a steering handle and a holder for a removable suction unit equipped with an integrated soil container. A coupling means is provided for detachably fastening to the chassis a spray nozzle and suction nozzle unit having its own roller. The spray nozzle and suction nozzle unit is displaceable laterally on either side of the apparatus. The spray nozzle is suitable for applying a cleaning preparation to a surface to be cleaned, for example, a floor, and the suction nozzle is suitable for sucking up the applied cleaning preparation.Type: GrantFiled: December 15, 1989Date of Patent: September 4, 1990Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Albert Kohl, Roland Schunter
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Patent number: 4945602Abstract: An improved drivable automatic floor cleaning machine includes a carriage supporting a fresh liquid compartment, a dirty liquid compartment, a cleaning rotor, a travel roller pair, and a rearward suction nozzle. The improvements include an adjustable machine frame with a depending protective curtain surrounding the periphery of the rotor remote from the suction nozzle, the machine frame being adjustable, preferably automatically, to accommodate rotors of different diameters, and to confine the cleaning liquid beneath the machine for improved efficiency and range of operation using either battery or rectifier power.Type: GrantFiled: December 18, 1989Date of Patent: August 7, 1990Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Albert Kohl, Leon Seilaz
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Patent number: 4922572Abstract: A drivable floor cleaning machine with integrated fresh liquid compartment (10) and dirty liquid compartment (11) and with a cleaning rotor (19) designed to be supplied with cleaning liquid from the fresh liquid compartment (10). Regulation of the liquid feed to the rotor, with constant observation of the available volume of the liquid for supply to the cleaning rotor (19) are provided. Liquid feed regulation is controlled by an alternating current oscillating piston pump (31) (FIG. 8).Type: GrantFiled: March 11, 1988Date of Patent: May 8, 1990Assignee: Henkel Kommanditgesellschaft auf AkteinInventors: Albert Kohl, Leon Seilaz
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Patent number: 4895764Abstract: In magnetic recording media consisting of a nonmagnetic base and, firmly applied to this, one or more magnetic layers based on a magnetic material finely dispersed in organic binders, the binder consists of not less than 50% by weight of a high molecular weight branched polyurethane elastomer possessing OH-containing urea groups at the chain ends.Type: GrantFiled: February 26, 1988Date of Patent: January 23, 1990Assignee: BASF AktiengesellschaftInventors: August Lehner, Albert Kohl, Michael Bobrich, Hermann Roller, Peter Richter, Werner Lenz, Ludwig Kreitner, Peter Rudolf
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Patent number: 4842896Abstract: Magnetic recording media, consisting of a non-magnetic base and a magnetic layer firmly bonded thereto, exhibit improved properties in sustained operation if, in the course of their production, a dispersion of inorganic particles in a solvent is applied to the magnetic layer, and the solvent is then removed.Type: GrantFiled: September 22, 1987Date of Patent: June 27, 1989Assignee: BASF AktiengesellschaftInventors: Werner Grau, Albert Kohl, Jenoe Kovacs, Werner Balz, Wulf Muenzer
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Patent number: 4673591Abstract: Layer-type magnetic recording media are produced by dispersing a finely divided magnetically anisotropic material in a binder which consists of not less than 30% of a radiation-curable aqueous binder dispersion, applying the dispersion onto a non-magnetic base, orienting the magnetically anisotropic material and drying and crosslinking the applied layer by means of UV or high-energy electron radiation.Type: GrantFiled: July 26, 1985Date of Patent: June 16, 1987Assignee: BASF AktiengesellschaftInventors: August Lehner, Guenter Heil, Werner Lenz, Werner Balz, Albert Kohl, Gunnar Schornick
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Patent number: 4671969Abstract: Layer-type magnetic recording media are produced by dispersing a finely divided magnetically anisotropic material in a binder which consists of not less than 40% of a radiation-curable aqueous binder dispersion, applying the dispersion onto a non-magnetic base, orienting the magnetically anisotropic material and drying and crosslinking the applied layer by means of UV or high-energy electron radiation.Type: GrantFiled: July 26, 1985Date of Patent: June 9, 1987Assignee: BASF AktiengesellschaftInventors: August Lehner, Werner Balz, Werner Lenz, Albert Kohl, Guenter Heil
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Patent number: 4668586Abstract: In magnetic recording media consisting of a non-magnetic base and, bonded on top of this, one or more magnetizable layers based on magnetic material finely dispersed in a polymer binder, a lubricant and further conventional additives, the lubricant used is a triethanolamine esterified with oleic acid.Type: GrantFiled: October 15, 1985Date of Patent: May 26, 1987Assignee: BASF AktiengesellschaftInventors: Albert Kohl, Milena Melzer, August Lehner, Norbert Schneider, Eberhard Koester, Werner Balz, Friedrich Sommermann, Ernst Ricker
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Patent number: 4656093Abstract: Magnetic recording media consisting of a non-magnetic base and, applied thereto, one or more firmly adhering magnetizable layers based on magnetic material finely dispersed in a polymeric binder, at least one lubricant and other conventional additives, wherein the lubricant used is a mixture of zinc stearate which has been rendered hydrophilic and stearylamide.Type: GrantFiled: December 24, 1984Date of Patent: April 7, 1987Assignee: Basf AktiengesellschaftInventors: August Lehner, Albert Kohl, Hermann Roller, Werner Balz, Eerhard Koester, Friedrich Sommermann
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Patent number: 4647513Abstract: Magnetic recording media consisting of a non-magnetic base and, applied thereto, one or more firmly adhering magnetizable layers based on magnetic material finely dispersed in a polymeric binder, at least one lubricant and further conventional additives, wherein the lubricant used is zinc stearate which has been rendered hydrophilic.Type: GrantFiled: December 24, 1984Date of Patent: March 3, 1987Assignee: BASF AktiengesellschaftInventors: August Lehner, Albert Kohl, Werner Balz, Friedrich Sommermann, Milan Velic, Werner Grau, Reinhold Baur
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Patent number: 4507457Abstract: Magnetic recording media are produced by dispersing timely divided anisotropic magnetic material in a polymeric binder to a non-magnetizable base.Type: GrantFiled: August 23, 1983Date of Patent: March 26, 1985Assignee: BASF AktiengesellschaftInventors: Albert Kohl, Norbert Schneider, Gregor Ley, Werner Balz, Milena Melzer, Helmut Jakusch
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Patent number: 4472455Abstract: Magnetic recording media are produced by dispersing finely divided anisotropic magnetic material and conventional additives in a solution of a polymeric binder in an organic solvent, or in an aqueous dispersion of a polymeric binder, adding a polymer based on hydrophilic ethylenically unsaturated compounds to the magnetic dispersion, applying a layer of the dispersion to a non-magnetizable base, orienting the anisotropic magnetic material in a magentic field and drying the applied layer.Type: GrantFiled: December 23, 1983Date of Patent: September 18, 1984Assignee: BASF AktiengesellschaftInventors: Albert Kohl, Werner Balz, Milena Melzer, Norbert Schneider, Eberhard Koester, August Lehner
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Patent number: 4328282Abstract: Magnetic recording media comprising a non-magnetic base and, applied thereto, one or more magnetizable layers based on an anisotropic magnetic material finely dispersed in an organic binder containing an ionomeric polyurethane elastomer, wherein the binder used is a substantially aqueous polyurethane dispersion prepared from a polyurethane solution which has been obtained by reacting a polyisocyanate with an organic polyhydroxy compound in the presence of an organic solvent that is inert to isocyanate groups.Type: GrantFiled: January 16, 1981Date of Patent: May 4, 1982Assignee: BASF AktiengesellschaftInventors: August Lehner, Heinrich Hartmann, Rudolf Bachmann, Werner Balz, Albert Kohl
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Patent number: 4310565Abstract: A process for the manufacture of magnetic recording media, comprising a non-magnetic base and, applied thereto, one or more magnetizable layers, consisting of an anisotropic magnetic material finely dispersed in an organic binder, wherein the binder contains at least 40% of an aqueous ionomeric polyurethane dispersion which at 50.degree. C. forms films having a modulus of elasticity of from 50 to 700 N/mm.sup.2 and a DIN No. 53,157 pendulum hardness of from 20 to 110 s, the corresponding values of the modulus and hardness at room temperature being more than 3.5 times higher.Type: GrantFiled: May 15, 1980Date of Patent: January 12, 1982Assignee: BASF AktiengesellschaftInventors: August Lehner, Heinrich Hartmann, Rudolf Bachmann, Albert Kohl, Herbert Spoor, Karl Mahler, Werner Balz