Patents Assigned to BASF
  • Clearcoat composition with improved adhesion
    Patent number: 6657007
    Abstract: Clearcoat coating composition for automotive exterior coatings with improved intercoat adhesion to a subsequently applied coating layer and improved flexibility contains (a) a first vinyl copolymer prepared from a monomer mixture including no more than about 35% by weight of nonfunctional monomers that has carbamate functionality and hydroxyl functionality, at least part of the hydroxyl functionality being on monomer units including an optionally branched alkyl group having at least about six carbon atoms; (b) a second vinyl copolymer having hydroxyl functionality, preferably primary hydroxyl functionality; and (c) a curing agent component that includes at least an aminoplast curing agent and optionally a polyisocyanate curing agent. The polyisocyanate curing agent is preferably blocked with a blocking agent that volatilizes during the cure reaction, regenerating a reactive isocyanate group.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Corporation
    Inventors: John A. Gilbert, Donald H. Campbell, Vincent Cook
  • Catalytic preparation of alkali metal alkoxides
    Patent number: 6657091
    Abstract: Alkali metal alkoxides are prepared by reacting alkali metal amalgam with alcohol in the presence of a catalyst comprising iron having a carbon content of at least 0.3% by weight.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Kerstin Schierle-Arndt, Hans-Josef Sterzel, Dieter Schläfer, Josef Guth, Holger Friedrich, Peter Zehner
  • 3-(4-cyanophenyl) uracils
    Patent number: 6656884
    Abstract: 3-(4-Cyanophenyl)uracils of the formula I wherein A is hydrogen, methyl or amino; Y is oxygen or sulfur; R1 is hydrogen or halogen; R2 is hydrogen, halogen, alkyl, haloalkyl, alkylthio, alkylsulfenyl or alkylsulfonyl; R3 is hydrogen, halogen or alkyl; R4 is hydrogen, haloalkyl; or unsubstituted or substituted alkyl, cycloalkyl, alkenyl, alkynyl, alkylcarbonyl, alkenylcarbonyl, alkynylcarbonyl or alkylsulfonyl, methods and intermediates for their manufacture, and their use as herbicides or for the desiccation or defoliation of plants.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: December 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Ralf Klintz, Peter Schäfer, Gerhard Hamprecht, Elisabeth Heistracher, Christoph-Sweder von dem Bussche-Hünnefeld, Norbert Götz, Albrecht Harreus, Karl-Otto Westphalen, Helmut Walter, Ulf Misslitz
  • Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines
    Patent number: 6657015
    Abstract: Liquid-absorbent polymers are prepared by a process for the gel and/or surface postcrosslinking of water-absorbent polymers by the polymer being treated with a surface postcrosslinking solution and being postcrosslinked and dried during and after the treatment by raising the temperature, wherein the crosslinker comprises a compound of the formula I where R1 is hydrogen, C1-C4-alkyl, C1-C4-hydroxyalkyl, trialkylsilyl or acetyl and R2, R2′, R3, R3′, R4, R4′ are each independently hydrogen, C1-C12-alkyl, C2-C12-alkenyl or C6-C12-aryl, dissolved in an inert solvent, and are used in hygiene articles, packaging materials and nonwovens.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Riegel, Matthias Weismantel, Volker Frenz, Thomas Daniel, Fritz Engelhardt
  • Long lines
    Patent number: 6655076
    Abstract: Longline comprises at least one polyamide monofil A) with at least one cylindrical hollow body (stopper) B) secured on the polyamide monofil surface, wherein said stopper B) consists essentially of a thermoplastic elastomer having a Shore D hardness (as defined in DIN 53505) of at least 50.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: December 2, 2003
    Assignees: BASF Aktiengesellschaft, Mustard & Son A.S.
    Inventors: Günther Worf, Michael Saalmann, Svein Sunde, Tom Thormodsen
  • Polymeric pigment dispersant utilized as a grind resin for pigments and method of preparing the same
    Patent number: 6657002
    Abstract: The present invention is directed to a polyester carboxylate polymeric pigment dispersant to be used as a grind resin to incorporate inorganic pigment into a pigment dispersion for a coating composition. The polymeric pigment dispersant is the reaction product of pentaerythritol, hexahydrophthalic anhydride, glycidylneodecanoate, and dimethylethanolamine. The present invention is also directed to a method of preparing the polymeric pigment dispersant. In this method, the pentaerythritol and the hexahydrophthalic anhydride are polymerized to form an intermediate compound. Next, an epoxy group of the glycidylneodecanoate reacts with the intermediate compound, and then the dimethylethanolamine neutralizes the intermediate compound to form the completed polymeric pigment dispersant. The polymeric pigment dispersant is utilized for efficient wetting and grinding of the pigment.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: December 2, 2003
    Assignee: BASF Corporation
    Inventors: Swaminathan Ramesh, JoAnn Lanza
  • Automotive refinish coatings with low volatile organic content
    Patent number: 6656530
    Abstract: The refinish compositions contain an acetoacetate resin based on a monomeric polyol or a hydroxy-functional oligomer of such a polyol; a blocked polyamine (polyketimine and/or polyaldimine), pigment, and alkyd polymer. The alkyd is not reactive toward the acetoacetate resin or the blocked polyamine. The refinish compositions may be prepared from an intermix system that has a plurality of color bases and an unpigmented component. Each color base includes the alkyd resin and one or more pigments dispersed with the alkyd resin. The unpigmented component includes at least one of the acetoacetate-functional resin or the blocked polyamine. A drier for the alkyd resin may be included in one of the components or in a separate, additional component.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: December 2, 2003
    Assignee: BASF Corporation
    Inventors: Lawrence E. Thieben, John C. Goan
  • Polycondensation resins and polyaddition resins produced by heterogeneous catalysis
    Patent number: 6657036
    Abstract: The invention relates to polycondensation resins which are prepared by polycondensation of compounds having a low molecular weight and separation of small molecules in the presence of at least one hetergeneous catalyst. The invention also relates to polyaddition resins which are prepared by polyaddition in the presence of at least one heterogeneous catalyst. The invention further relates to the use of said polycondensation resins and polyaddition resins for the preparation of moulded parts, adhesives and coating materials.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Coatings AG
    Inventors: Werner-Alfons Jung, Heinz-Peter Rink, Eberhard Fuchs, Wolfgang Straehle
  • Cholesteric layered material, and the production thereof
    Patent number: 6656543
    Abstract: The present invention relates to novel cholesteric layered materials having the layer sequence A1/B/A2, where A1 and A2 are identical or different and each comprise at least one cholesteric layer, and B is at least one interlayer separating the layers A1 and A2 from one another, wherein layer B is an adhesive layer; cholesteric multilayered pigments which can be produced therefrom; a process for their production, and their use.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: December 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Schuhmacher, Norbert Schneider, Volker Richter, Wolfgang Best, Albert Kohl, Peter Blaschka, Claudia Sierakowski
  • Method and apparatus for predicting polymer latex properties in an emulsion polymerization process to improve the quality and productivity of the polymer latex
    Patent number: 6657019
    Abstract: The present invention is a method for predicting polymer latex properties for an emulsion polymer latex based on statistical relationships between the polymer latex properties and process parameters for the emulsion polymerization process.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Corporation
    Inventors: Michael A. Taylor, Jonathan P. Antonucci, Robert R. Racz
  • Method for the continuous production of polybutylene terephthalate from terephthal acid and butane diole
    Patent number: 6657040
    Abstract: The invention relates to a method for the continuous production of polybutylene terephthalate from terephthal acid and 1,4-butane diole, comprising the following stages: a) direct esterification of terephthal acid with 1,4-butane diole in a reactor cascade of at least two reactors b) pre-condensation of the esterification product obtained in stage a), c) polycondensation of the pre-condensate obtained in stage b), whereby the temperature of the reactor cascade in stage a) is progressively decreased during its operation.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Heitz, Martin Klatt, Ralf Neuhaus
  • Temperature measurements in tubular reactors during treatment of fluid masses
    Patent number: 6657088
    Abstract: A method for measuring the temperature of fluid masses being treated in a tubular reactor apparatus which comprises carrying out the treatment in reactor apparatus comprises at least two same-type tubular reactors which are filled with solid particles, at least one tubular reactor containing a temperature measuring unit, the tubular reactors being designed such that both the ratio of the mass of the solid particles to the free cross-sectional area of the respective tubular reactor and the pressure drop measured by an inert gas being conducted transversely to the free cross-sectional area are each substantially identical across the respective tubular reactor. The apparatus is suitable for treating fluid masses while generating or consuming thermal energy, the temperature being measured.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Schliephake, Ulrich Hammon, Ulrich Rauh, Armin Schraut
  • Fungicidal mixtures
    Patent number: 6656944
    Abstract: The invention relates to fungicidal compositions comprising an acceptable carrier and/or surface active agent and synergistically effective amounts of (a) at least one azolopyrimidine of formula I  in which R1 through R2, L, A and n have the meaning given in claim 1; (b) and at least one melanin biosynthesis inhibitor (MBI), preferably a phenoxyamide of formula II  wherein R5 through R9, Y and m have the meaning given in claim 2; and to a method of controlling the growth of phythopathogenic fungi at a locus which comprises applying synergistically effective amounts of at least one azolopyrimidine of formula I (a) and at least one MBI (b) to the locus.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Ewald Sieverding, Leslie May
  • Utilization of polymerizable liquid crystal substances for the production of optical components
    Publication number: 20030219548
    Abstract: The present invention relates to the use of polymerizable liquid-crystalline compounds for the production of optical elements having color- and polarization-selective reflection, and to optical elements comprising these compounds in monomeric or polymerized form.
    Type: Application
    Filed: May 7, 2003
    Publication date: November 27, 2003
    Applicant: BASF Akiengesellschaft
    Inventors: Frank Meyer, Norbert Schneider, Peter Schuhmacher
  • Use of the maize X112 mutant ahas 2 gene and imidazolinone herbicides for selection of transgenic monocots, maize, rice and wheat plants resistant to the imidazolinone herbicides
    Patent number: 6653529
    Abstract: A system for transformation of maize XI12 mutant ahas2 gene into monocot (rice, corn, and wheat) cells, selection of transformed cells with the imidazolinone class of herbicide compound, and production of transgenic maize, rice and wheat plants resistant to the imidazolinone herbicides is described. The mutant ahas2 gene can be used as an effective selectable marker in transformation, useful in selection for stacked gene traits, useful as a selectable marker in breeding or hybrid seed production, and useful as a quality control tool.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: November 25, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Jianying Peng, Lynne Hirayama, Christian Lochetto
  • Coating material comprising a mixture that consists of at least one wetting agent and of ureas and/or urea derivatives serving as thixotropic agents
    Patent number: 6652916
    Abstract: The invention relates to a coating material containing a binding agent and a cross-linking agent as well as a thixotropic agent based on ureas and/or ureas derivatives, whereby the coating material additionally contains a wetting agent that improves the wettability of the thixtropic agent.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: November 25, 2003
    Assignee: BASF Coatings AG
    Inventors: Hubert Baumgart, Guido Schulze-Finkenbrink
  • Coating agent consisting of at least three components, method for producing same and its utilization
    Patent number: 6653394
    Abstract: A coating composition consisting of at least three components, comprising a component (I) comprising at least one oligomeric or polymeric resin containing functional groups which react with isocyanate groups, as binder (A), a component (II) comprising at least one polyisocyanate as crosslinking agent (F), and a component (III) which comprises water, wherein component (I), (II) and/or (III) comprise or comprises at least one constituent which is curable with actinic light and/or electron beams.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: November 25, 2003
    Assignee: BASF Coatings AG
    Inventors: Uwe Meisenburg, Heinz-Peter Rink
  • Triphenylmethane dyes for water-based compositions
    Patent number: 6653390
    Abstract: Novel pigment compositions comprising pigmentary salts and polymers are provided. Pigmentary salts of triphenylmethane dyes are co-precipitated with polyfunctional polymeric acids to form pigment compositions having greatly increased hydrophilicity, dispersability and compatibility with water/polymeric dye vehicles. Processes for forming these pigment compositions are also provided.
    Type: Grant
    Filed: April 8, 2000
    Date of Patent: November 25, 2003
    Assignee: BASF Corporation
    Inventors: Ashleigh Simms Harrison, Gary Don Ellis
  • Preparation of addition-polymer powder
    Patent number: 6653372
    Abstract: A process for preparing an addition-polymer powder suitable for modifying a binding mineral building material by drying an aqueous addition-polymer dispersion whose film has a glass transition temperature Tg≦30° C. and to which a drying assistant has been added comprises adding to the aqueous addition-polymer dispersion before drying only a drying assistant which will have a plasticizing or deplasticizing effect in the ready-to-use mix of the binding mineral building material with water and admixing the resulting dry addition-polymer powder with at least one assistant in the form of a finely divided solid which will have an opposite effect to the drying assistant added before drying.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: November 25, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Pakusch, Joachim Roser, Maximilian Angel, Andree Dragon
  • Method for production of polyether alcohols
    Patent number: 6653441
    Abstract: In a process for preparing polyether alcohols by catalytic addition of at least two alkylene oxides onto H-functional initiator substances, at least one multimetal cyanide compound is used as catalyst and the addition of the alkylene oxides onto the initiator substance includes incorporation of at least one oxyalkylene block during whose formation at least two alkylene oxides are metered in together and the ratio of the alkylene oxides to one another in the mixture is changed during the joint introduction.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: November 25, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Kathrin Harre, Gerd Höppner, Georg Heinrich Grosch, Stephan Bauer, Jürgen Winkler, Els Paredis, Reinhard Lorenz, Inge Rotermund