Patents by Inventor Herbert Fischer
Herbert Fischer 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: 5959101Abstract: A continuous process for the production of polycarboxylic acids or salts thereof from polysaccharides involving contacting a polysaccharide with an oxidizing agent selected from the group consisting of nitrogen dioxide, dinitrogen tetroxide, or an equilibrium mixture thereof in the absence of oxygen at a temperature above 80 .degree.C. and at a pressure of from about 3 bar to about 15 bar absolute and for a tirne period of from about 1 to about 30 minutes to form a reducd gaseous product and a polysaccharide product wherein the primary alcohol groups of said polysaccharide product are at least partially converted to carboxyl groups.Type: GrantFiled: March 18, 1997Date of Patent: September 28, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Konrad Engelskirchen, Herbert Fischer
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Patent number: 5932629Abstract: An aqueous printing ink composition containing finely dispersed pigments and a synthetic polymer binder, the binder containing: (a) finely dispersed, aqueous-basic insoluble emulsion (co)polymers having a number average molecular weight of from about 10,000 to 1,000,000 and a glass transition temperature of up to 0.degree. C., in intimate admixture with (b) aqueous-basic soluble or dispersible (co) polymers having a number average molecular weight lower than that of the (co)polymers of component (a) and a glass transition temperature of at least 0.degree. C.Type: GrantFiled: January 11, 1996Date of Patent: August 3, 1999Assignees: Henkel Kommanditgesellschaft auf Aktien, Hartmann Druckfarben, GmbHInventors: Michael Beck, Herbert Fischer, Wolfgang Ritter, Ludwig Schieferstein, Udo Griebsch, Quang-Minh Thai
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Patent number: 5912297Abstract: Improved autodeposited coatings on metallic surfaces are formed by contacting the metallic surfaces with an autodepositing composition comprising an acidic aqueous coating solution containing dispersed solid resin particles of either an internally stablilized or externally stabilized vinylidene chloride polymer, an exemplary internally stabilized polymer being prepared from vinylidene chloride and a monomeric surfactant which includes an inorganic ionizable group, and an exemplary externally stabilized polymer being prepared from vinylidene chloride and a reactive comonomer, the resulting resin particles having surfactant adsorbed thereon, said autodeposited coatings having extremely good corrosion resistant properties without treatment with a reaction rinse such as a chromium rinse.Type: GrantFiled: June 6, 1995Date of Patent: June 15, 1999Assignee: Henkel CorporationInventors: Wilbur S. Hall, Herbert Fischer, Roland Morlock
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Patent number: 5892027Abstract: A process for producing solid polycarboxylic acid salts from polysaccharides with gaseous nitrogen dioxide and dinitrogen tetroxide to at least partially convert the primary alcohol groups of the polysaccharides into carboxyl groups and form a solid polycarboxylic acid and then mixing the polycarboxylic acid with a solid neutralizing agent to at least partially neutralized the carboxylic acid groups of the polycarboxylic acid.Type: GrantFiled: October 7, 1997Date of Patent: April 6, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Thomas Moeller, Herbert Fischer
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Patent number: 5856470Abstract: A process for producing polycarboxylic acids or salts thereof by contacting a polysaccharide with nitrogen dioxide and dinitrogen tetroxide at a charging temperature in the range from the boiling point of nitrogen dioxide under a particular pressure to a temperature which is 50.degree. C. higher than said boiling point, oxidizing the primary alcohol groups of the polysaccharide at a temperature which is at least about 10.degree. C. above said charging temperature to convert the primary alcohol groups into carboxyl groups, and optionally, at least partially neutralizing the carboxylic acid groups formed.Type: GrantFiled: December 29, 1997Date of Patent: January 5, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Thomas Moeller, Konrad Engelskirchen, Herbert Fischer, Wolf-Eckart Noack
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Patent number: 5821360Abstract: A process for producing polycarboxylic acids or their salts from polysaccharides is provided. Solid particulate polysaccharides having at least one primary alcohol group in the polysaccharides are oxidized with nitrogen dioxide in a fluid bed. The fluidizing gas contains nitrogen dioxide and the process is operated at a pressure of from 0.5 to 12 bars and a temperature between the boiling point of nitrogen dioxide and 160.degree. C. At least two moles of nitrogen dioxide for the equivalent of the primary alcohol groups reacted over the entire reaction are provided.Type: GrantFiled: July 31, 1996Date of Patent: October 13, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Konrad Engelskirchen, Herbert Fischer, Werner Juettner, Hans-Wilhelm Verholt, Thomas Moeller
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Patent number: 5786308Abstract: A new group of polymer flow controllers for powder resin lacquer is provided. The polymer flow controllers contain groups ##STR1## wherein n and m are numbers from 0 to 1000 with the sum of n+m=2-1000 and R.sub.1 and R.sub.2 are independently hydrogen, an optionally hydroxy substituted hydrocarbon group containing 1 to 36 carbon atoms aryl and aralkyl optionally substituted in the aromatic nucleus, or R.sub.3 --(--O--C.sub.2 H.sub.4 --)--.sub.p O--CH.sub.2 -- wherein R.sub.3 is an alkyl or alkenyl group containing 1 to 18 carbon atoms and p is a number of 1 to 10.Type: GrantFiled: August 27, 1996Date of Patent: July 28, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ulrich Eicken, Brigitte Hase, Herbert Fischer, Paul Birnbrich, Heinz-Guenter Schulte, Wolfgang Gress, Harald Frommelius
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Patent number: 5756217Abstract: An abrasive coating is formed on the tip of a component of a drive unit for abrading an abradable coating during a stripping operation by thermal spraying a ceramic layer on the component, the ceramic layer being profiled and providing a succession of abrading edges and intermediate spaces between the abrading edges to take up and remove abraded material. The abrading edges can be formed as deposits of ceramic material on the component or, as a ceramic layer applied on a profiled surface etched on the component.Type: GrantFiled: September 15, 1995Date of Patent: May 26, 1998Assignee: MTU Motoren-und Turbinen Union Munchen GmbHInventors: Johannes Schroder, Thomas Uihlein, Hans Weber, Herbert Fischer, Erwin Fischhaber, Norbert Legrand
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Patent number: 5744543Abstract: Described is a single-component adhesive made from a radical-polymerized olefinically unsaturated monomer and an air-activated initiator system and characterized in that the adhesive also contains isocyanate and/or silane groups. This makes a dual curing mechanism possible. The more rapid of the two curing reactions gives specific characteristics in the initial stage, e. g. high initial strength, high adhesive strength or high contact strength. The slower of the two reactions produces the definitive characteristics, e.g. final strength or resistance to heat.Type: GrantFiled: December 9, 1996Date of Patent: April 28, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Thomas Huver, Herbert Fischer, Wolfgang Klauck, Gerd Bolte
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Patent number: 5725815Abstract: The process of controlling foam in a foam-generating system by adding to the system a foam-inhibiting effective amount of a block copolymer containing alkylene oxide units obtained by reacting a homopolymer or copolymer of alkylene oxides with a diisocyanate or a dicarboxylic acid derivative containing 2 to 44 carbon atoms.Type: GrantFiled: November 9, 1995Date of Patent: March 10, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Horst-Werner Wollenweber, Thomas Moeller, Hans-Juergen Sladek, Heinz-Guenther Schulte, Wolfgang Gress, Ulrich Eicken, Herbert Fischer, Christian De Haut
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Patent number: 5710207Abstract: A method of using compositions as foam regulators for water-based systems with a tendency to foam is provided. The method employs a block copolymer containing ester groups corresponding to general formula (I):A--(CH.sub.2 CH.sub.2 O).sub.n --B (I)in which n is an integer of 4 to 300, A is an optionally polymeric hydroxycarboxylic acid function and B is hydrogen, an alkyl or alkenyl radical containing 1 to 22 carbon atoms, a phenyl or benzyl radical or has the same meaning as A. Also provided is a granular free-flowing foam regulating formulation which contains 0.5% by weight to 30% by weight of the block copolymer containing ester groups adsorbed onto from 70% by weight to 99.5% by weight of a granular, substantially inorganic phosphate-free support material.Type: GrantFiled: April 10, 1996Date of Patent: January 20, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Thomas Moller, Ulrich Eicken, Herbert Fischer, Horst-W. Wollenweber, Wolfgang Gress, Christian de Haut, Ulrike Mahler, Manfred Gorzinski, Hans-Jurgen Sladek
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Patent number: 5610242Abstract: A process for modifying polymers containing carboxyl, hydroxyl and/or phenolic hydroxyl groups. In the process, the polymers are reacted with a delta.sup.2 mono- or bis-oxazoline, each substituted in the 2-position by an optionally substituted alkyl or alkenyl group containing from 7 to 23 carbon atoms. The modified polymers show reduced melt viscosities, lower adhesion and better slip characteristics than unmodified polymers.Type: GrantFiled: February 3, 1995Date of Patent: March 11, 1997Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Paul Birnbrich, Ulrich Eicken, Herbert Fischer, Joerg-Dieter Klamann, Ludwig Schieferstein
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Patent number: 5541316Abstract: A process for the production of polycarboxylic acids or salts thereof from polysaccharides by oxidation with nitrogen dioxide/dinitrogen tetroxide with at least partial conversion of the primary alcohol groups of the polysaccharides into carboxyl groups and optionally at least partial neutralization of the carboxylic acid groups formed is provided. The oxidation reaction is carried out in a closed reaction system in the presence of oxygen under pressures of 2 bar to 10 bar and at a temperature above room temperature. Nitrogen dioxide/dinitrogen tetroxide is used in such quantities that, in the event of a theoretically complete shift of the equilibrium onto the nitrogen dioxide side, the nitrogen dioxide is present in quantities of at most 2 mole equivalents, based on the content of monomer unit of the polysaccharide containing one primary alcohol group.Type: GrantFiled: July 28, 1994Date of Patent: July 30, 1996Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Konrad Engelskirchen, Herbert Fischer, Hans-Wilhelm Verholt
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Patent number: 5512614Abstract: A binder mixture for stoving lacquers comprising A) at least one alkyd resin; and B) at least one poly-N-acyl alkyleneimine prepared by cationic polymerization of a monomer mixture ofa) from 10 to 90% by weight of at least one monomer corresponding to formula (I): ##STR1## in which Z is a direct bond or the group CR.sup.5 R.sup.6, R.sup.1 to R.sup.4 can be the same or different and represent H or a C.sub.1-8 alkyl group, R.sup.5 and R.sup.6 can be the same or different and represent H or a C.sub.1-2 alkyl group, R.sup.7 is a hydroxyl-containing alkyl or alkylene group of a hydroxycarboxylic acid containing 2 to 32 carbon atoms,b) from 90 to 10% by weight of at least one monomer corresponding to formula (II): ##STR2## in which Z and R.sup.1 to R.sup.6 are as defined above and R.sup.8 is the radical of an aromatic monocarboxylic acid, andc) from 0 to 80% by weight of at least one monomer corresponding formula (III): ##STR3## in which Z and R.sup.1 to R.sup.6 are as defined above, and R.sup.Type: GrantFiled: February 13, 1995Date of Patent: April 30, 1996Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ulrich Eicken, Herbert Fischer, Wolfgang Gress, Ulrich Nagorny, Norbert Stork
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Patent number: 5507971Abstract: A composition and process for cleaning hard surfaces, the composition containing from 0.001 to 2% by weight, based on the weight of the composition, of a detergency booster comprising a copolymer of(a) from 20 to 80% by weight of esters selected from the group consisting of acrylic acid and methacrylic acid containing 1 to 4 carbon atoms in the alcohol component, and(b) from 20 to 80% by weight of acrylic acid or methacrylic acid, wherein the copolymer has an intrinsic viscosity of at least 200 ml.g.sup.-1 as measured in tetrahydrofuran at 20.degree. C.Type: GrantFiled: September 27, 1994Date of Patent: April 16, 1996Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Dimitrios Ouzounis, Ulrich Eicken, Eva Kiewert, Herbert Fischer
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Patent number: 5501814Abstract: A process and surfactant-containing composition for reducing incrustation on washed laundry. The composition contains finely-divided, water-insoluble builder components and an at least partly water-soluble co-builder which is the oxidation product of polyglucosans wherein, on average, at least 15 mole percent thereof consists of oxidized anhydroglucose units corresponding to formula I ##STR1## and which have an average molecular weight of up to 15,000.Type: GrantFiled: April 22, 1994Date of Patent: March 26, 1996Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Konrad Engelskirchen, Herbert Fischer, Beatrix Kottwitz, Horst Upadek, Christian Nitsch
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Patent number: 5500475Abstract: Provided are thickeners based on an aqueous preparation of nonionic, water-dispersible or water-soluble polyurethanes, to their production and to their use. The nonionic, water-dispersible or water-soluble polyurethanes are obtainable by reaction of polyfunctional isocyanates with polyether polyols, monohydric alcohols and, if desired, polyhydric alcohols, wherein the monohydric alcohols contain at least one other polar group. Also provided is a process for the production of such thickeners. The thickeners are particularly suitable for thickening emulsion paints.Type: GrantFiled: May 10, 1994Date of Patent: March 19, 1996Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ulrich Eicken, Herbert Fischer, Wolfgang Gress, Rainer Hoefer, Doris Oberkobusch, Ludwig Schieferstein
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Patent number: 5416135Abstract: Halogen-containing synthetic resins can be stabilized with calcium and zinc soaps of which the effectiveness is enhanced by co-stabilizers.The invention relates to special cationic layered hydrotalcite compounds having a specific BET surface of at least 50 m.sup.2 /g which are modified with at least one polymeric additive, to processes for the production of these cationic layer compounds and to their use as co-stabilizers for halogen-containing synthetic resins stabilized with calcium and/or zinc salts.Type: GrantFiled: January 24, 1994Date of Patent: May 16, 1995Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Helmut Endres, Herbert Fischer, Frido Loeffelholz, Peter Wedl, Kurt Worschech, Angela Hansen, Guenther Geismar
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Patent number: 5397844Abstract: Polyacrylates and their use for powder coatings are disclosed. In order to prepare the polyacrylates, acrylic acid, methacrylic acid, their esters with C.sub.1 -C.sub.4 alcohols, and/or fumaric acid, maleic acid, and their anhydrides are first polymerized. The polymers are then reacted with long chain alcohols, one alcohol having an aliphatic chain with 6 to 36 carbon atoms and a second alcohol having a cyclic amide structure. This polyacrylate is suitable as a levelling agent for powder coatings, in particular for powder lacquers. It improves the flowing behavior by reducing the orange peel effect and improves flowability.Type: GrantFiled: February 7, 1994Date of Patent: March 14, 1995Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Herbert Fischer, Wolfgang Gress, Doris Oberkobusch
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Patent number: 5358988Abstract: Described are water-in-oil emulsions containing an emulsion polymerizate which is soluble in or swells in water and an oil phase, consisting at least partly of monoether compounds, that is not miscible with water in all proportions. Also described are a method of preparing such emulsions and their use as agents for precipitation, sedimentation, and/or thickening.Type: GrantFiled: July 14, 1993Date of Patent: October 25, 1994Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ludwig Schieferstein, Herbert Fischer, Hermann Kroke, Brigitte Spei, Volker Wehle, Rainer Jeschke, Uwe Ploog