Patents Assigned to BASF
  • Pentafluoropropane blowing agent-containing resin blend for use in making integral skin foams
    Patent number: 6218443
    Abstract: It has been found that non-chlorinated pentafluoropropane blowing agents may be used alone or in combination with water in flexible integral skin foams. For example, foams prepared from a resin blend incorporating 1,1,1,3,3-pentafluoropropane (HFA-245fa) alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. Such foams made using the resin blend of the present invention are suitable for use in many applications including, for example, shoe soles.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: April 17, 2001
    Assignee: BASF Corporation
    Inventors: Valeri L. Valoppi, Elizabeth S. Bredeson
  • Anticorrosion binders comprising phosphate or phosphonate groups
    Patent number: 6218456
    Abstract: An aqueous polymer dispersion obtainable by emulsion polymerization of a monomer mixture A) comprising from 50 to 100% by weight of C1-C18 alkyl (meth)acrylates, vinyl esters, vinylaromatic compounds, or mixtures thereof, in the presence of a protective colloid B) composed of b1) from 2 to 40% by weight of ethylenically unsaturated copolymerizable compounds (monomers) having at least one phosphate or phosphonate group b2) from 0 to 98% by weight of C1-C18 alkyl (meth)acrylates, vinyl esters or vinylaromatic compounds b3) from 0 to 50% by weight of further monomers, the amounts by weight being based on the protective colloid.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: April 17, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernhard Schlarb, Harm Wiese, Gerald Wildburg, Maria Gyopar Rau
  • Apparatus and method for direct injection of additives into a polymer melt stream
    Publication number: 20010000234
    Abstract: This invention provides an apparatus and method for injecting an additive directly into a polymer melt stream. The method comprises supplying a melt flow of a polymeric host material to a die assembly having a thin-plate assembly and injecting at least one additive into at least one predetermined location in a cross-section of the melt flow of the polymeric host material while the melt flow passes through the die assembly. The method achieves uniform dosing of the one or more additives in the extrusion direction in the polymeric host material without homogeneously mixing the one or more additives and the polymeric host material. The apparatus for directly injecting one or more additives into a polymer melt stream comprises a pumping system, a die assembly having a thin-plate assembly, and a distribution line.
    Type: Application
    Filed: December 8, 2000
    Publication date: April 12, 2001
    Applicant: BASF Corporation
    Inventors: Charles F. Helms, Dominick A. Burlone, James L. Huff, Thomas Kessler
  • Pressure-sensitive materials with small amounts of styrene
    Patent number: 6214925
    Abstract: A polymer which is composed of from 50 to 99.98% by weight of a C1-C12 alkyl (meth)acrylate a), from 0.02 to 1.8% by weight of a vinyl-aromatic compound b), from 0 to 10% by weight of an ethylenically unsaturated acid or an ethylenically unsaturated acid anhydride c), and from 0 to 40% by weight of other monomers d), the percentages by weight being based on the polymer.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: April 10, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernhard Schuler, Gerhard Auchter, Johannes Türk, Rik Noordijk, Johannes Dobbelaar, Reinhard Bächer, Wolfgang Hümmer
  • Herbicidal N-[(1,3,5-triazin-2-yl)-aminocarbonyl]-benzenesulfonamides
    Patent number: 6214769
    Abstract: A method is provided for controlling weeds resistant to acetolactate synthase (ALS)-inhibiting herbicides that includes applying to the locus where control is desired a herbicidally effective amount of a compound of formula I wherein R1 is lower alkyl; R2 is CF3; and R3 is hydrogen or lower alkyl, or its agriculturally useful salts.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: April 10, 2001
    Assignee: BASF Corporation
    Inventors: Bruce Burdick, Terance James, Terry R. Wright, Bruce Kirksey
  • Substituted aza and diazacycloheptane and cyclooctane compounds and their use
    Patent number: 6214822
    Abstract: Aza- and diazacyclohexane and -cyclooctane compounds of the following formula: Ar1—A—B—Ar2  (I) where Ar1, A, B and Ar2 have the meanings stated in the description have a high affinity for the dopamine D3 receptor and can therefore be used to treat disorders which respond to dopamine D3 ligands.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: April 10, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Jörg Treiber, Stefan Blank, Dorothea Starck, Liliane Unger, Hans-Jürgen Teschendorf, Karsten Wicke
  • Cathodic electrocoat composition
    Patent number: 6214470
    Abstract: An electrocoat coating composition comprising an electrodepositable resin that has functionality reactive with isocyanate and a curing agent having at least one allophanate groups is described. The invention also provides a method of applying the composition of the invention to a substrate and curing the applied coating.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: April 10, 2001
    Assignee: BASF Corporation
    Inventors: Charles L. Tazzia, Timothy S. December, Thirumurti Narayan
  • Resolution of racemates of primary and secondary heteroatom-substitued amines by enzyme-catalyzed acylation
    Patent number: 6214608
    Abstract: A process for preparing optically active primary and secondary heteroatom-substituted amines from the corresponding racemates, which comprises a) enantioselective acylation of a racemic heteroatom-substituted amine with an ester whose acid component carries a fluorine, nitrogen, phosphorus, oxygen or sulfur atom in the vicinity of the carbonyl carbon, in the presence of a hydrolase, b) separation of the mixture of optically active heteroatom-substituted amine and optically active acylated heteroatom-substituted amine to obtain one enantiomer of the heteroatom-substituted amine, c) if required isolation of the other enantiomer of the heteroatom-substituted amine from the acylated heteroatom-substituted amine by amide cleavage.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: April 10, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Friedhelm Balkenhohl, Klaus Ditrich, Christoph Nübling
  • Anodic electrocoat having a carbamate functional resin
    Patent number: 6214188
    Abstract: The invention provides a polymer (a) having a polymer backbone having appended thereto at least one carbamate functional group, the polymer represented by randomly repeating units according to the formula: R1 represents H or CH3, R2 represents H, alkyl, or cycloalkyl, L represents a divalent linking group, A represents repeat units comprising at least one repeat unit having a pendant carboxylic acid group, x represents 10 to 90 weight %, and y represents 90 to 10 weight %. The invention further provides an anodic electrocoat coating composition comprising an aqueous dispersion of a polymer (a) and (b) a compound having a plurality of functional groups that are reactive with said carbamate groups, wherein the repeat units A of polymer (a) having a pendant carboxylic acid group are base-salted.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: April 10, 2001
    Assignee: BASF Corporation
    Inventor: Timothy S. December
  • Material for gravure recording by means of coherent electromagnetic radiation and printing plate therewith
    Patent number: 6214521
    Abstract: A material for gravure recording by means of coherent electromagnetic radiation for letterpress printing, consisting of a substrate and a crosslinkable layer, with or without a release layer and/or cover sheet, the layer containing at least one ethylenically unsaturated compound, a polymerization initiator and at least one polymeric binder which consists of polyvinyl alcohol and/or at least one copolymer having a substantial proportion of the structural unit and containing a filler having a ceiling temperature of less than 800K, in particular less than 600K, e.g. polystyrene, polymethyl methacrylate, poly(ethylene)ketone, polyoxymethylene or poly(&agr;-methylstyrene), in particular having a spherical or roughly spherical form with a maximum dimension of about 5-10 &mgr;m. The material is very suitable for laser-engravable letterpress printing plates.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: April 10, 2001
    Assignee: BASF Drucksysteme GmbH
    Inventors: Thomas Telser, Uwe Stebani, Hartmut Sandig, Klaus-Dieter Tensierowski
  • Laser-markable plastics
    Patent number: 6214917
    Abstract: The present invention relates to laser-markable plastics, in particular thermoplastic polyurethanes, which are distinguished by the fact that they contain pigments having a coating of doped tin dioxide.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: April 10, 2001
    Assignees: Merck Patent GmbH, BASF Akteingesellschaft
    Inventors: Rainer Linzmeier, Burkhard Krietsch, Frank Prissok
  • Preparation of methylglyoxal dimethyl acetal
    Patent number: 6214172
    Abstract: In a process for the preparation of methylglyoxal dimethyl acetal from methylglyoxal and methanol in the presence of an acidic ion exchanger, water is introduced in an amount sufficient to form an acidic reaction mixture in which the acetal product and water form an azeotropic mixture, with or without the retention of some methanol reactant. After subjecting a single phase acidic reaction mixture to an azeotropic distillation, it will separate into two distinct liquid phases with a simple recovery of the acetal product from the aqueous phase.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: April 10, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Carsten Gröning, Klaus Ebel, Gerd Kaibel, Jörg Therre, Jürgen Koopmann, Helmuth Menig, Gerhard Fritz, Rainer Dietz
  • Stabilized polymer dispersions or polymer solutions, and prepared polymers obtainable therefrom
    Patent number: 6214929
    Abstract: A polymer is obtained by removing the medium from a polymer dispersion or polymer solution containing at least one polymeric phase and at least one stabilizer suitable to protect against the damaging effect of light, heat and/or oxidation.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: April 10, 2001
    Assignee: BASF Aktiengesellscaft
    Inventors: Sylke Haremza, Jürgen Krockenberger, Manfred Appel, Hubert Trauth, Joachim Pakusch, Heinrich Sack
  • Use of polymers containing &bgr;-hydroxyalkylvinylamine units as biocides
    Patent number: 6214885
    Abstract: The use of polymers containing &bgr;-hydroxyalkylvinylamine units, as obtainable by reacting polymers containing vinylamine units with epoxides of the formula in which R is C2-C28 alkyl, phenyl, C1-C18 alkylphenyl or C2-C18 alkenyl, as biocides.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: April 10, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Jürgen Tropsch, Dieter Zeller, Anton Negele, Norbert Mahr, Jürgen Decker
  • Comfort melamine fabrics and process for making them
    Patent number: 6214058
    Abstract: Fabrics made of melamine fibers are made more comfortable by submerging them for at least 20 minutes in a dyebath or mock dyebath that is at least 70° C.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: April 10, 2001
    Assignee: BASF Corporation
    Inventors: George M. Kent, Dean R. Gadoury, Dominick A. Burlone, Karen L. Johnson
  • Water-dispersable materials
    Patent number: 6211309
    Abstract: The present invention relates to water-dispersible materials (e.g. fibers or films) and to a method of producing same. The materials of the invention comprise a water soluble component, for example, a sulfonated polycondensate thermoplastic, and a modifying auxiliary component, for example, a low melt temperature thermoplastic.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: April 3, 2001
    Assignee: BASF Corporation
    Inventors: Stanley A. McIntosh, Harold R. Vickery
  • Method for producing enol ethers
    Patent number: 6211416
    Abstract: Enol ethers of the formula I where R1 is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical which may carry further substituents which do not react with acetylenes or allenes, and the radicals R, independently of one another, are hydrogen or aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radicals, which may be bonded to one another to form a ring, and m is 0 or 1, are prepared by reacting an acetal or ketal of the formula II with an acetylene or allene of the formula III or IV where R and R1 have the abovementioned meanings, in the gas phase at elevated temperatures in the presence of a zinc- or cadmium- and silicon- and oxygen-containing heterogeneous catalyst.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: April 3, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Joaquim Henrique Teles, Norbert Rieber, Klaus Breuer, Dirk Demuth, Hartmut Hibst, Heinz Etzrodt, Udo Rheude
  • Use of isoindolinone derivatives as stabilizers for organic materials
    Patent number: 6210657
    Abstract: Isoindolinone derivatives of the formula I, in which the variables have the following meanings: R1 is hydrogen, COOR4, COR4, CONR4R5, CN, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C3-C10-cycloalkenyl, aryl or heteroaryl, substituted or unsubstituted; R1 and R2 together are C7-C10-bicycloalkyl or C7-C10-bicycloalkenyl; R3 is hydrogen, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C3-C10-cycloalkenyl, C1-C12-alkoxy, C1-C20-alkoxycarbonyl, C1-C12-alkylamino, C1-C12-dialkylamino, aryl or heteroaryl, substituted or unsubstituted, substituents which confer solubility in water, selected from the group consisting of carboxylate, sulfonate or ammonium radicals; R4 and R5 independently of one another are hydrogen, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C3-C10-cycloalkenyl; aryl or heteroaryl, substituted or unsubstituted; are used as stabilizers for organic materials.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: April 3, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Thorsten Habeck, Sylke Haremza, Hubert Trauth, Volker Schehlmann, Horst Westenfelder
  • Process for the preparation of &agr;-chloromethylene-triorganylphosphorane derivatives
    Patent number: 6211397
    Abstract: A process for the preparation of &agr;-chloromethylene-triorganylphosphorane derivatives I (radicals R are C-organic substituents and A stands for CN or CO-B where B is a C-organic or O-organic radical which is inert under chlorination conditions) by chlorination of phosphoranes II with chlorine, wherein the chlorination is carried out in the presence of a mineral base as hydrogen chloride acceptor and the chlorine and base are fed to the reaction mixture concurrently but separately at the rates at which they are consumed. The reaction products I are important intermediates for plant protectants.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: April 3, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Schaefer, Ernst Buschmann, Gernot Reissenweber
  • Dimensionally stable thermoplastic moulding materials
    Patent number: 6211266
    Abstract: Thermoplastic molding compositions comprise A) from 10 to 97.9% by weight of a partly crystalline polyamide, B) from 0.1 to 50% by weight of a copolyamide composed of B1) from 60 to 90 mol % of units derived from s-caprolactam and B2) from 10 to 40 mol % of units derived from aliphatic dicarboxylic acids and from aliphatic diamines, C) from 1 to 40% by weight of a copolymer based on styrene or on substituted styrenes and on unsaturated nitriles, D) from 1 to 50% by weight of a fibrous filler and E) from 0 to 30% by weight of other additives, where the percentages by weight of components A) to E) are 100% in total.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: April 3, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Weber, Peter Wolf, Stefan Grutke