Patents by Inventor Richard Van Gelder
Richard Van Gelder 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: 8123851Abstract: A method of finishing an organic pigment by dry-comminuting said pigment in the presence of a sulfonato-functional condensation product of an arylsulfonic acid and at least one aliphatic aldehyde having 1 to 6 C atoms as crystallization modifier, dispersing the resulting mixture of pigment and crystallization modifier in mineral acid, and swelling the pigment in the presence of the crystallization modifier in mineral acid.Type: GrantFiled: July 30, 2008Date of Patent: February 28, 2012Assignee: BASF SEInventors: Joachim Jesse, Matthias Klueglein, Richard Van Gelder, Wolfgang Best
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Publication number: 20110226160Abstract: A method of finishing an organic pigment by dry-comminuting said pigment in the presence of a sulfonato-functional condensation product of an arylsulfonic acid and at least one aliphatic aldehyde having 1 to 6 C atoms as crystallization modifier, dispersing the resulting mixture of pigment and crystallization modifier in mineral acid, and swelling the pigment in the presence of the crystallization modifier in mineral acid.Type: ApplicationFiled: July 30, 2008Publication date: September 22, 2011Applicant: Basf SEInventors: Joachim Jesse, Matthias Klueglein, Richard Van Gelder, Wolfgang Best
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Patent number: 7872067Abstract: The present invention relates to amphiphilic polymer compositions, to a process for their preparation and to their use for preparing aqueous active compound compositions of water-insoluble active compounds, in particular active compounds for crop protection. The amphiphilic polymer compositions can be obtained by reacting a) at least one hydrophobic polymer P1 which carries functional groups R1 which are reactive toward isocyanate groups and which is constructed of ethylenically unsaturated monomers M1, comprising: a1) at least 10% by weight, based on the total amount of monomers M1, of monomers M1a of the formula I ?in which X is oxygen or a group N—R4; R1, R2, R3 and R4 are as defined in the claims and the description; a2) up to 90% by weight, based on the total amount of monomers M1, of neutral monoethylenically unsaturated monomers M1b whose solubility in water at 25° C.Type: GrantFiled: June 7, 2005Date of Patent: January 18, 2011Assignee: BASF AktiengesellschaftInventors: Günter Oetter, Christian Krüger, Harald Köhle, Maria Scherer, Norbert Wagner, Matthias Bratz, Rainer Berghaus, Richard van Gelder
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Publication number: 20100286445Abstract: A method of finishing an organic pigment that involves dissolving or dispersing the pigment in a mineral acid and crystallizing the pigment from the solution or dispersion by mixing with an aqueous diluent in the absence of a sulfonato-functional condensation product of an arylsulfonic acid and an aliphatic aldehyde as crystallization inhibitor, which comprises ripening the crystallized organic pigment in the presence of a surfactant or in the presence of a pigment solubility enhancer in aqueous suspension.Type: ApplicationFiled: July 30, 2008Publication date: November 11, 2010Applicant: BASF SEInventors: Matthias Klueglein, Richard Van Gelder, Joachim Jesse, Wolfgang Best, Benno Sens, Rainer Henning
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Patent number: 7736553Abstract: The invention relates to processes for producing nanoparticles, especially pigment particles, comprising the following steps: i) bringing a base substance (1) into the gas phase, ii) generating particles by cooling or reacting the gaseous base substance (1), and iii) applying electrical charge to the particles during particle generation in step ii) in a nanoparticle generation apparatus. The invention further relates to apparatus for producing nanoparticles, having a feed line (28) for transporting the gas stream (29) into the apparatus, a particle generation and charging area for substantially simultaneous generation and charging of nanoparticles, and a takeoff line (30) for transporting the charged nanoparticles from the particle generation and charging area.Type: GrantFiled: July 8, 2005Date of Patent: June 15, 2010Assignee: BASF AktiengesellschaftInventors: Joerg Halpap, Richard Van Gelder, Bernd Sachweh, Siegfried Welker, Norbert Wagner, Andreas Marquard, Gerhard Kasper
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Publication number: 20100050904Abstract: The invention relates to a methods finishing an organic pigment by dissolving or dispersing the pigment in a mineral acid and crystallizing the pigment from the solution or dispersion by mixing with an aqueous diluent in the presence of a crystallization modifier constituted by a sulfonate-functional condensation product of a naphthalenesulfonic acid and at least one aliphatic aldehyde having 1 to 6 carbon atoms, and then isolating the pigment as a solid, wherein the crystallization modifier is present in the aqueous diluent.Type: ApplicationFiled: April 10, 2008Publication date: March 4, 2010Applicant: BASF SEInventors: Joachim Jesse, Benno Sens, Richard van Gelder, Matthias Klueglein, Wolfgang Best, Rainer Henning
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Publication number: 20100043672Abstract: The invention relates to a method of finishing an organic pigment that involves dissolving or dispersing the pigment in an aqueous solvent or a mineral acid and crystallizing the pigment from the solution or dispersion in the presence of a crystallization modifier, and subsequently isolating the pigment as a solid, wherein the crystallization modifier is a condensation product containing sulfonate groups and formed from at least one hydroxyarylsulfonic acid and/or at least one hydroxydiaryl sulfone compound and at least one aliphatic aldehyde having 1-6 C atoms, optionally urea, and an alkali metal sulfite if appropriate, or is a mixture of such condensation products.Type: ApplicationFiled: April 11, 2008Publication date: February 25, 2010Applicant: Basf SeInventors: Joachim Jesse, Benno Sens, Andres Carlos Garcia Espino, Richard Van Gelder, Matthias Klueglein, Ines Pietsch, Wolfgang Best, Rainer Henning
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Publication number: 20080287593Abstract: The present invention relates to amphiphilic polymer compositions, to a process for their preparation and to their use for preparing aqueous active compound compositions of water-insoluble active compounds, in particular active compounds for crop protection. The amphiphilic polymer compositions can be obtained by reacting a) at least one hydrophobic polymer P1 which carries functional groups R1 which are reactive toward isocyanate groups and which is constructed of ethylenically unsaturated monomers M1, comprising: a1) at least 10% by weight, based on the total amount of monomers M1, of monomers M1a of the formula I in which X is oxygen or a group N—R4; R1, R2, R3 and R4 are as defined in the claims and the description; a2) up to 90% by weight, based on the total amount of monomers M1, of neutral monoethylenically unsaturated monomers M1b whose solubility in water at 25° C.Type: ApplicationFiled: June 7, 2005Publication date: November 20, 2008Inventors: Gunter Oetter, Christian Kruger, Harald Kohle, Maria Scherer, Norbert Wagner, Matthias Bratz, Rainer Berghaus, Richard van Gelder
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Patent number: 7378545Abstract: A method for reducing the particle size of amino acid crystals using ultrasound is discussed.Type: GrantFiled: September 19, 2005Date of Patent: May 27, 2008Assignee: Abbott LaboratoriesInventors: Siegfried Bechtel, Matthias Rauls, Richard Van Gelder, Seth C. Simpson
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Publication number: 20070262482Abstract: The invention relates to processes for producing nanoparticles, especially pigment particles, comprising the following steps: i) bringing a base substance (1) into the gas phase, ii) generating particles by cooling or reacting the gaseous base substance (1), and iii) applying electrical charge to the particles during particle generation in step ii) in a nanoparticle generation apparatus. The invention further relates to apparatus for producing nanoparticles, having a feed line (28) for transporting the gas stream (29) into the apparatus, a particle generation and charging area for substantially simultaneous generation and charging of nanoparticles, and a takeoff line (30) for transporting the charged nanoparticles from the particle generation and charging area.Type: ApplicationFiled: July 8, 2005Publication date: November 15, 2007Inventors: Jorg Halpap, Richard Van Gelder, Bernd Sachweh, Siegfried Welker, Norbert Wagner, Andreas Marquard, Gerhard Kasper
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Patent number: 7128784Abstract: The present invention relates to a process for crystallizing small particles with a narrow particle size distribution. The crystals of the invention are obtained by introducing ultrasound into a solution or suspension of the substance to be crystallized while simultaneously adjusting a particular specific stirring power.Type: GrantFiled: July 18, 2002Date of Patent: October 31, 2006Assignee: BASF AktiengesellschaftInventors: Matthias Rauls, Richard van Gelder, Katrin Wagner, Harald Bernard
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Publication number: 20060122421Abstract: A method for reducing the particle size of amino acid crystals using ultrasound is discussed.Type: ApplicationFiled: September 19, 2005Publication date: June 8, 2006Inventors: Siegfried Bechtel, Matthias Rauls, Richard Van Gelder, Seth Simpson
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Patent number: 6992216Abstract: A method for reducing the particle size of amino acid crystals using ultrasound is discussed.Type: GrantFiled: January 7, 2003Date of Patent: January 31, 2006Assignee: Abbott GmbH & Co. KGInventors: Siegfried Bechtel, Matthias Rauls, Richard Van Gelder, Seth C. Simpson
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Publication number: 20030166726Abstract: A method for reducing the particle size of amino acid crystals using ultrasound is discussed.Type: ApplicationFiled: January 7, 2003Publication date: September 4, 2003Inventors: Siegfried Bechtel, Matthias Rauls, Richard Van Gelder, Seth C. Simpson
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Publication number: 20030166968Abstract: Polymethylolalkanoic or monomethylolalkanoic acids of the formula (I) 1Type: ApplicationFiled: November 21, 2002Publication date: September 4, 2003Inventors: Gerhard Schulz, Hagen Weigl, Richard van Gelder, Matthias Rauls, Klaus Ebel
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Publication number: 20030051659Abstract: The present invention relates to a process for crystallizing small particles with a narrow particle size distribution. The crystals of the invention are obtained by introducing ultrasound into a solution or suspension of the substance to be crystallized while simultaneously adjusting a particular specific stirring power.Type: ApplicationFiled: July 18, 2002Publication date: March 20, 2003Inventors: Matthias Rauls, Richard van Gelder, Katrin Wagner, Harald Bernard
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Patent number: 6444181Abstract: In a process and an apparatus for avoiding encrustations in reactors or crystallizers (13), such as industrial crystallizers for suspensions (11), points of incidence (4) for the excitation of ultrasonic oscillations by sonotrodes (3) which are connected to electromechanical converters (2) are provided on the walls (6, 21) and on the base (7) of the crystallizer (13). The ultrasonic frequency is generated at high-frequency generators (1).Type: GrantFiled: September 26, 2000Date of Patent: September 3, 2002Assignee: BASF AktiengesellschaftInventors: Udo Setzer, Bernhard Otto, Siegfried Bechtel, Richard van Gelder, Thomas Fetzer, Joachim Borgwart, Matthias Rauls, Christoph Gahn
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Patent number: 6143929Abstract: A process for preparing guanidine derivatives, in particular creatine, is described and entails an O-alkylisourea salt and a primary or secondary amine being reacted in the presence of crystals of a guanidine derivative.Type: GrantFiled: December 13, 1999Date of Patent: November 7, 2000Assignee: BASF AktiengesellschaftInventors: Knut Kessel, Michael Kluge, Thomas Greindl, Thomas Bogenstatter, Gunter Scherr, Matthias Rauls, Richard van Gelder