Patents Assigned to BASF
  • Patent number: 5952493
    Abstract: Crude caprolactam is purified by reaction with a complex hydride of boron or of aluminum.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: September 14, 1999
    Assignee: BASF Aktiengesellschaft
    Inventor: Eberhard Fuchs
  • Patent number: 5951841
    Abstract: Salts of aromatic hydroxy compounds are used as brighteners in acidic electroplating baths. Furthermore, acidic electroplating baths for the electrolytic deposition of metallic layers onto shaped articles comprise, as brighteners, at least one novel salt of an aromatic hydroxy compound. Finally, shaped articles are electroplated by a process using the novel acidic electroplating baths.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: September 14, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Wehlage, Ulrich Schroder, Alfred Oftring
  • Patent number: 5951962
    Abstract: Mesoporous silica has a specific surface area of the mesopores of at least 500 m.sup.2 /g and a volume of the mesopores of at least 1.0 ml/g and is prepared by converting a silica precursor in a water-containing reaction medium, the reaction medium containing a polymer dispersion.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: September 14, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Muller, Bernd Reck, Joachim Roser
  • Patent number: 5953129
    Abstract: A method for the continuous colorimetry of plastics molding compounds, which involves light being introduced, via transmitter light pipes and a sensor head, into the melt of the molding compound and the light reflected there being passed, via receiver light pipes, to a spectrometer or multirange photometer, conjugate transmitter and receiver light pipes in each case being spaced equidistantly.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: September 14, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Anderlik, Jurgen Ettmuller, Matthias Radle, Paulus Schmaus, Norbert Modersheim
  • Patent number: 5950587
    Abstract: A continuously variable runner length manifold is provided for an internal combustion engine. The continuously variable runner length manifold includes a housing having an inlet port and a plurality of outlet ports defined by a plurality of stacked manifold sections. A plurality of runner members are rotatably mounted within the housing. The runner members include wall portions which combine with the housing to define a plurality of runners in communication with a plenum and a respective one of the outlet ports. The runners have a length which is continuously variable upon rotation of the runner members relative to the housing.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: September 14, 1999
    Assignee: BASF Corporation
    Inventors: Eric R. Sattler, Joel S. Myers, Michael J. Haspel
  • Patent number: 5952438
    Abstract: Polymeric polyamines obtainable by reacting linear, alternating carbon monoxide/1-alkene copolymers with ammonia or amines of the formula (I)R--NH.sub.2 (I)where R is --NH.sub.2, --OH, C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.20 -aryl, C.sub.7 -C.sub.20 -arylalkyl, C.sub.7 -C.sub.20 -alkylaryl or an organosilicon radical having 3 to 30 carbon atoms,or with a reagent which releases ammonia or the amine (I), and subsequent hydrogenation.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: September 14, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Detlef Kratz, Ferdinand Lippert, Peter Schwab, Dieter Boeckh, Johannes Perner
  • Patent number: 5951828
    Abstract: In a process for the continuous distillation of thermolabile monomers under reduced pressure in the presence of formamide in a column,the thermolabile monomers are continuously fed in liquid form, separately from formamide, into the lower part of the column up to the middle of the column,Formamide is vaporized with a vaporizer at the bottom of the column and, together with constituents having higher boiling points than the thermolabile monomers, is discharged from the bottom of the column and replaced by addition of fresh formamide,the thermolabile monomers are taken off at a side offtake in the upper third of the column, with the distillation being controlled such that the monomers contain less than 5% by weight of formamide, anda product stream containing constituents which have a lower boiling point than the thermolabile monomers is taken off at the top of the column.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: September 14, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Winter, Jacques Dupuis, Michael Kroner
  • Patent number: 5948528
    Abstract: Bicomponent fibers of different cross-sections may be formed without changing the geometry of the spinneret orifices. More specifically, at least two polymers are co-melt-spun through an orifice of fixed geometry so as to achieve a bicomponent fiber having a desired cross-section. In order to change to a bicomponent fiber having a cross-section which is different, therefore, at least one of (1) the differential relative viscosity, (2) the relative proportions of the first and/or second polymers, and (3) the cross-sectional bicomponent distribution of the first and second polymers, is changed. In such a manner, therefore, a wide variety of bicomponent fibers having different cross-sectional geometries may be produced without changing the fixed geometry orifice through which the polymers are co-melt-spun. Thus, bicomponent fiber cross-sections may be "engineered" to suit a variety of needs without necessarily shutting down production equipment in order to change spinnerets.
    Type: Grant
    Filed: November 28, 1997
    Date of Patent: September 7, 1999
    Assignee: BASF Corporation
    Inventors: Charles F. Helms, Jr., Otto M. Ilg, Diane R. Kent, Matthew B. Hoyt, John A. Hodan
  • Patent number: 5948945
    Abstract: A process for vinylation of an organic acidic-hydrogen compound, which entails reacting an organic acidic-hydrogen compound with acetylene or an acetylene-containing gas under elevated pressure and at elevated temperature in the presence of a base, wherein reactor regions initiating decomposition of acetylene are treated with an effective amount of a chemically inert oil of medium viscosity.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: September 7, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudolf Erich Lorenz, Herbert Helfert, Martin Schmidt-Radde, Hans-Peter Schildberg, Gunter Saladin
  • Patent number: 5948932
    Abstract: Phenylacetic acid derivatives of the formula I ##STR1## where the substituents and the index have the following meanings: x is NOCH.sub.3, CHOCH.sub.3, CHCH.sub.3 ;Y is O, NRR.sup.1,R independently of one another are hydrogen and C.sub.1 -C.sub.4 -alkyl;R.sup.2 is cyano, nitro, trifluoromethyl, halogen, alkyl and alkoxy;m is 0, 1 or 2, it being possible for the radicals R.sup.2 to be different when m is 2;R.sup.3 is hydrogen, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.3 -C.sub.6 -cycloalkyl;R.sup.4, R.sup.5 and R.sup.6 have the meanings given in claim 1,and their salts, a process and intermediates for the preparation of these compounds, and compositions comprising them for controlling animal pests and harmful fungi.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: September 7, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Grote, Herbert Bayer, Ruth Muller, Hubert Sauter, Reinhard Kirstgen, Volker Harries, Gisela Lorenz, Eberhard Ammermann, Siegfried Strathmann
  • Patent number: 5949532
    Abstract: A method and an apparatus for determining diffusion parameters, concentration, size or flow behavior of particles in a sample, exciting light of a light source being directed into the sample, Raman scattered light being collected from an observed volume of the sample and being passed on to a spectrograph where it is resolved into spectral lines, the intensity of at least one spectral line being measured at least 10 times per second by means of one photodetector each, and the measured intensity values for the respective spectral line being used, via a fluctuation analysis, preferably an autocorrelation or a frequency analysis, to calculate diffusion parameters, concentration, size or flow behavior of the particle to which the spectral line in question can be assigned. With this method, it is also possible for signals of different spectral lines or bands, or signals of Raman scattered light, quasi-elastically scattered light and fluorescence light to be correlated with one another.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: September 7, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Schrof, Jurgen Klingler, Dieter Horn
  • Patent number: 5945499
    Abstract: Disclosed is a curable coating composition that includes a compound having carbamate functionality of the structure ##STR1## wherein R is H or alkyl, a compound having hydroxyl functionality, a polyisocyanate crosslinking agent, and an aminoplast crosslinking agent. The effective equivalents of the aminoplast crosslinking agent is equal to or less than the equivalents of carbamate functionality and the effective equivalents of polyisocyanate crosslinker is equal to or less than the equivalents of hydroxyl functionality. The carbamate-functional resin and the aminoplast crosslinking agent provide rheology control during the early part of the bake to cure an applied coating of the coating composition.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: August 31, 1999
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Paul J. Harris
  • Patent number: 5944887
    Abstract: A process for transforming crude halogenated copper phthalocyanine pigments having a chlorine content of from 4 to 50.3% by weight into a useful pigmentary state comprises treating the crude pigment at elevated temperature with a liquid acidic aromatic organic medium in the presence of a copper phthalocyanine derivative selected from the group consisting of the copper phthalocyanine-sulfonic and -carboxylic acids and their alkali metal, ammonium and alkylammonium salts, the amino-substituted and aminomethylated copper phthalocyanines and their reaction products with alkylating agents, sulfonic acids, sulfonyl chlorides and carbonyl chlorides, the imidomethylene- and amidomethylene-substituted copper phthalocyanines, the alkyl-, aryl- and cyano-substituted copper phthalocyanines and the hydroxyl- and alkoxy-substituted copper phthalocyanines, if desired in the presence of water.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: August 31, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Andrea Birgit Schutze, Frank Scherhag, Peter Bottcher
  • Patent number: 5945080
    Abstract: A catalyst and a process for producing the catalyst are provided. For the catalytic reduction of NO.sub.x and for the oxidation of hydrocarbons, the catalyst contains a spinel containing the metals copper, zinc and aluminum.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: August 31, 1999
    Assignees: Daimler-Benz AG, BASF Aktiengesellschaft
    Inventors: Martin Hartweg, Martina Heinau, Andrea Seibold, Leonhard Walz, Thomas Fetzer, Bernd Morsbach, Wolfgang Buechele
  • Patent number: 5945127
    Abstract: Solid drug forms obtainable by extrusion of a melt comprising, besides one or more active substances, a mixture of homo- and/or copolymers of N-vinylpyrrolidone and degraded starches.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: August 31, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Jorg Breitenbach, Jens Rieger, Joerg Rosenberg, Axel Sanner
  • Patent number: 5945560
    Abstract: In a process and an apparatus for the continuous preparation of alkyl esters of (meth)acrylic acid by reacting (meth)acrylic acid with alkanols having from 1 to 5 carbon atoms in a homogeneous, liquid, solvent-free phase at elevated temperature and in the presence of an acid esterification catalyst, in which the (meth)acrylic acid, the alkanol and the catalyst are fed to a reaction zone, the water formed is removed by rectification during a residence time as constituent of a mixture comprising alkanol in a rectification unit superposed on the reaction zone, the distillate thus obtained is separated into an organic phase comprising alkanol and an aqueous phase comprising water, the organic phase is returned to the rectification unit, the reaction mixture is discharged from the reaction zone and conveyed into a distillative separation zone comprising further rectification units and in the latter the alkyl (meth)acrylate formed is separated off.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: August 31, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Gabriele Iffland, Albrecht Dams, Alexander Weck, Heinrich Aichinger, Holger Herbst, Gerhard Nestler, Herbert Exner
  • Patent number: 5945571
    Abstract: Described is a method of producing 1,4-butanediol, the method calling for 2,3-dihydrofuran to be decomposed in a single stage over a hydrogenation catalyst in the presence of water and hydrogen at a temperature of 20 to 300.degree. C. and a pressure of 1 to 300 bar and in neutral or acid conditions.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: August 31, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Pinkos, Rolf Fischer, Boris Breitscheidel, Peter Polanek
  • Patent number: 5945543
    Abstract: A process for preparing .alpha.-(N,N-dialkylamino) carboxamides of the formula I ##STR1## where the substituents have the stated meanings, comprises reacting the corresponding free acids with primary or secondary amines in the presence of anhydrides of an alkanephosphonic acid.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: August 31, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Ernst Buschmann, Thomas Zierke
  • Patent number: 5945495
    Abstract: The present invention relates to the use of surfactants for improving the drying properties of hydrophilic, highly swellable hydrogels in the course of drying with the aid of contact dryers.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: August 31, 1999
    Assignee: BASF Corporation
    Inventors: Thomas Daniel, Norbert Herfert, Gustav Remmel, Ulrich Riegel, Uwe Stuven, Fritz Engelhardt
  • Patent number: 5945032
    Abstract: Polymer complexes which comprises hydrogen peroxide, a polymer suitable for complex formation with hydrogen peroxide, and at least one metal colloid and/or metal salt are prepared as described and used in bactericidal compositions, disinfectant systems, hair cosmetic compositions and as free-radical initiators for chemical reactions.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: August 31, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Jorg Breitenbach, Bernhard Fussnegger, Siegfried Lang, Hans-Bernd Reich