Patents Assigned to BASF
  • Process for producing paper and cardboard
    Patent number: 6132558
    Abstract: Paper and cardboard are produced by draining pulps, with sheet formation and drying of the sheets, by a process in which first(a) polyethyleneimines having a molar mass M.sub.w of more than 500,000 or polymers containing vinylamine units and having a molar mass of from 5000 to 3 million and then(b) cationic polyacrylamides or polymers containing vinylamine units, the molar masses M.sub.w of the polymers each being at least 4 million,are added to the pulps, and the pulp is then subjected to at least one shearing stage and is flocculated by adding bentonite, colloidal silica or clay.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: October 17, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Dyllick-Brenzinger, Hubert Meixner, Friedrich Linhart, Dietmar Monch, Klaus-Dieter Gerber, Bernd Dirks, Peter Baumann
  • Aqueous based solvent free cleaner compositions containing two nonionic surfactants
    Patent number: 6133218
    Abstract: The present invention relates to an aqueous based, solvent free degreaser composition, comprising a blend of two nonionic surfactants selected from, alcohol alkoxylate with a fatty alcohol moiety, alkoxylated fatty alcohol, fatty alcohol having oxyethylate moieties, polyoxyalkylene block copolymers, and alkyl phenol alkoxylate.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: October 17, 2000
    Assignee: BASF Corporation
    Inventors: Charles O. Kerobo, Michael C. Welch, Suzanne M. Gessner, Sonia J. Patterson
  • Method of producing a composite preparation for making silage from green fodder
    Patent number: 6132778
    Abstract: In a process for the preparation of a combination preparation for ensiling green feed, lactic acid-producing bacteria are mixed with a granulated carrier, preferably calcium carbonate, to give a formulation and this formulation is mixed with an alkali metal and/or alkaline earth metal salt of an aliphatic fatty acid which is also granulated, and, if required, conventional assistants.
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: October 17, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Bruno Kasler, Hans Muschen
  • Cosmetic or pharmaceutical preparations comprising 1,3,5-triazine derivatives and zinc oxide
    Patent number: 6129908
    Abstract: Cosmetic or pharmaceutical preparations for protecting human skin or human hair from solar rays which containa) from 0.1 to 10% by weight of one or more 1,3,5-triazine derivatives of the formula I, ##STR1## in which the substituents independently of one another have the following meanings:R.sup.1 to R.sup.3are C.sub.1 -C.sub.20 -alkyl, aryl, heteroaryl, optionally substituted;X is O, NR.sup.4 ;R.sup.4 is hydrogen, C.sub.1 -C.sub.20 -alkyl, aryl, heteroaryl, optionally substituted, andb) from 0.1 to 15% by weight of zinc oxide.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: October 10, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Wunsch, Horst Westenfelder
  • Binding agents for polyurethane-based paints
    Patent number: 6130308
    Abstract: The invention relates to coating compositions for the production of coatings which are resistant to condensed water and comprise binders based on a polyurethane resin PUR which comprises alpha, omega-polymethacrylatediols (A) as structural units. The alpha, omega-polymethacrylatediols (A) preferably consist of the monomer units methyl methacrylate, ethyl methacrylate, propyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, tert-butyl methacrylate, n-pentyl methacrylate, amyl methacrylate, n-hexyl methacrylate, n-octyl methacrylate, 2-ethylhexyl methacrylate, n-decyl methacrylate, cyclopentyl methacrylate, cyclohexyl methacrylate, 4-tert-butylcyclohexyl methacrylate, cyclooctyl methacrylate, phenyl methacrylate or isobornyl methacrylate or mixtures thereof.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: October 10, 2000
    Assignee: BASF Coating AG
    Inventors: Heinz-Peter Rink, Bernd Mayer, Egbert Nienhaus
  • Process for the production of multilayered coatings
    Patent number: 6129989
    Abstract: A process is claimed for producing a multilayer coating on a substrate surface, in which(A) an aqueous coating composition comprising as film-forming agent an aqueous polymer dispersion is applied as basecoat composition to a substrate surface coated with a customary primer surfacer,(B) a suitable transparent topcoat composition is applied to the basecoat thus obtained, and(C) the basecoat is baked together with the topcoat,wherein the basecoat composition comprises an aqueous polymer dispersion comprising(i) an acrylate polymer based on from 30 to 60% by weight of C.sub.1 -C.sub.8 -alkyl (meth)acrylate monomers, from 30 to 60% by weight of vinyl-aromatic monomers and from 0.5 to 10% by weight of (meth)acrylic acid, and(ii) a thickener, which does not have an associative action, comprising an acrylate copolymer based on (C.sub.1 -C.sub.6)-alkyl (meth)acrylate and (meth)acrylic acid.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: October 10, 2000
    Assignee: BASF Coatings AG
    Inventor: Gotz-Ekkehard Sapper
  • Composite pigments based on polyalkylenepolyamine-modified nanoparticulate metal oxides and anionic dyes
    Patent number: 6129786
    Abstract: Composite pigments based on nanoparticulate metal oxides modified by crosslinked or uncrosslinked polyalkylenepolyamine and anionic dyes are useful for coloring paints, inks, plastic, paper, wood, leather and textile materials.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: October 10, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Boubacar Camara, Manfred Patsch, Ulrich Steuerle, Jurgen Romeis
  • Hydrogenation of alkinols using a catalyst containing macropores
    Patent number: 6130360
    Abstract: An alkinol or mixture of two or more thereof is hydrogenated by bringing the alkinol or the mixture of two or more thereof into contact with a hydrogen-containing gas in the presence of a catalyst comprising as active metal at least one metal of transition group VIII of the Periodic Table, either alone or together with at least one metal of transition group I or VII of the Periodic Table, applied to a support, wherein the support contains macropores.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: October 10, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Arnd Bottcher, Melanie Brunner, Jochem Henkelmann, Heinz Rutter
  • Bleaching efficiency boosters for bleach and textile detergent compositions
    Patent number: 6130198
    Abstract: Use of amines as bleaching efficiency boosters for textile detergent compositions, where the pK.sub.a of the amines is greater than the pH minus 1, preferably greater than the pH, particularly preferably at least 0.5 greater than the pH of the 1% by weight wash liquor obtained from the textile detergent composition.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: October 10, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Wehlage, Dieter Boeckh, Werner Bertleff, Alfred Oftring
  • Method for producing expandable styrene polymers containing graphite particles
    Patent number: 6130265
    Abstract: In a process for preparing expandable styrene polymers containing graphite particles, styrene is polymerized in aqueous suspension in the presence of graphite particles.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: October 10, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Guiscard Glueck, Klaus Hahn, Karl-Heinz Batscheider, Dieter Naegele, Knut Kaempfer, Wolfram Husemann, Frieder Hohwiller
  • Recovery of raw materials from magnetic recording media
    Patent number: 6129847
    Abstract: Magnetic powder and substrate material are separately recovered from finely chopped wastes of magnetic recording media consisting of a polymeric substrate and a magnetic layer present thereon in which finely divided magnetic powder is dispersed in crosslinked or uncrosslinked polymeric binder by treating the finely chopped wastes of magnetic recording media in a solution consisting of the potassium salt of a polyunsaturated fatty acid, or a biodegradable cleaning agent comprising phosphates, surfactants and a complexing agent, and one or more organic solvents or water while being subjected to mechanical action, and separately removing the magnetic powder from the substrate material by washing or sedimentation or in a magnetic separator.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: October 10, 2000
    Assignee: BASF Magnetics GmbH
    Inventors: Thomas Wunsch, Karl-Heinz Sartor, Axel-Rudiger Schulze, Norbert Muller, Jochen Eicher, Oskar Stephan
  • Acid disazo dyes as well as sulphonamides as their intermediate product
    Patent number: 6130320
    Abstract: Disazo dyes of formula (I) where one of the two symbols X.sup.1 and X.sup.2 means hydroxy and the other amino and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are as defined in the specification. The invention also relates to sulphonamides as their intermediate products and to the use of the dyes for the dyeing of natural and synthetic substrates.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: October 10, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunther Lamm, Helmut Reichelt, Gerhard Wagenblast
  • Metathesis catalyst, and its preparation and use
    Patent number: 6130181
    Abstract: A catalyst containing Re.sub.2 O.sub.7 on an inorganic support, wherein the Re.sub.2 O.sub.7 component is on the support in the form of Re.sub.2 O.sub.7 particles having a diameter of <1 nm, the rhenium surface area, determined by N.sub.2 O pulse chemisorption, is at least 0.4 m.sup.2 /g, and the Re.sub.2 O.sub.7 component is distributed over the support in the form of an outer shell having a maximum thickness of 1.5 mm.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: October 10, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Schwab, Boris Breitscheidel, Ralf Schulz, Michael Schulz, Ulrich Muller
  • Preparation of cyanoacetic esters
    Patent number: 6130347
    Abstract: Cyanoacetic esters are prepared by reacting a corresponding monochloroacetic ester with hydrogen cyanide in the presence of a base, where the base is a compound selected from the group consisting of tertiary amines, salts of carbonic acid, salts of carbonic acid monoesters, salts of carboxylic acids, amidines, guanidines and aromatic N-heterocyclic compounds.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: October 10, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Julius, Rolf Schneider, Klaus Mundinger, Jakob Fischer
  • Fungicidal agents and method
    Patent number: 6130224
    Abstract: The present invention relates to composiitons for controlling harmful fungi which comprise, as active ingredients, fenazaquin and at least one amide compound of the formula IA--CO--NR.sup.1 R.sup.2 Iwhere A, R.sup.1 and R.sup.2 have the meanings given in the description. The compositions according to the invention are particularly useful for controlling botrytis.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: October 10, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Eicken, Harald Kohle, Gunter Retzlaff, Eberhard Ammermann, Gisela Lorenz, Siegfried Strathmann
  • Preparation of polymers of C.sub.2 -C.sub.12 -alkenes with the addition of a reaction retarder
    Patent number: 6127495
    Abstract: Polymers of C.sub.2 -C.sub.12 -alkenes are prepared at from -50 to 300.degree. C. and from 0.5 to 3000 bar in the presence of a catalyst system by a process in which a compound of the general formula I ##STR1## where M.sup.1 is boron, aluminum, gallium, indium or thallium andR.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl, alkylaryl or arylalkyl each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, or 5- to 7-membered cycloalkyl which in turn may carry C.sub.1 -C.sub.10 -alkyl as a substituent, or R.sup.1 and R.sup.2 together form a cyclic group, is added of 4 to 15 carbon atoms.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: October 3, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Rosch, Wolfgang Bidell, Franz Langhauser
  • Method of making 3,5-difluoroaniline from 1,3,5-trichlorobenzene
    Patent number: 6127577
    Abstract: A method for manufacturing 3,5-difluoroaniline by fluorinating 1,3,5-trichlorobenzene and then aminating the intermediate fluorinated benzene with aqueous or anhydrous ammonia to achieve the product in yields of greater than 80%.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: October 3, 2000
    Assignee: BASF Corporation
    Inventors: Lee I. Cherney, Francis J. Mettille
  • Co-Agglomeration of random vinyl substituted aromatic/conjugated diolefin polymer with sulfur to improve homogeneity of polymer/asphalt admixtures
    Patent number: 6127461
    Abstract: The present invention relates to the coagglomeration of random vinyl substituted aromatic/C.sub.4 -C.sub.6 conjugated diolefin polymers with sulfur. Said coagglomerate is storage stable and easily blended with asphalt under a variety of mixing conditions. Further, polymer/asphalt blends prepared with the sulfur coagglomerated polymers show improved storage stability against phase separation.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: October 3, 2000
    Assignee: BASF Corporation
    Inventors: Koichi Takamura, Paul Velasco, Peter Blanpain, John Cheng, Heinz Plaumann, Richard Liu, Wayne Millican, Barry Baughman
  • Process for the preparation of substituted anthraquinones
    Patent number: 6127580
    Abstract: Process for the preparation of anthraquinones of the general formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which can be identical or different, are hydrogen, a C.sub.1 -C.sub.8 -alkyl or C.sub.2 -C.sub.8 -alkenyl radical, in which 1,4-naphthoquinone is reacted with a 1,3-diene of the general formula II ##STR2## in a cycloaddition step to give the corresponding tetrahydroanthraquinone and the tetrahydroanthraquinone is oxidized with oxygen in the presence of a basic catalyst to give the anthraquinone, in which both the cycloaddition step and the oxidation step are carried out in the presence of an aqueous diluent.Preferably, the cycloaddition step and oxidation step are carried out at a reaction temperature between 90 and 110.degree. C. and at atmospheric pressure.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: October 3, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Siegel, Andreas Kramer
  • Catalytic patterns containing metal complexes with an adamantane-like structure
    Patent number: 6127496
    Abstract: A catalyst system containing as active constituentsA) metal complexes of the formula I ##STR1## wherein the substituents have the meanings set forth in the specification andB) a compound capable of forming metallocenium ions.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: October 3, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Geprags, Rainer Sturmer, Horst Weiss, Susanne Steiger