Patents Assigned to BASF
  • Patent number: 5096931
    Abstract: An expandable styrene polymer containinga) a styrene polymer,b) from 0.05 to 3% by weight, based on a), of water,c) from 0.001 to 1% by weight, based on a), of a finely divided organic polymer having a water absorption capacity of 10 g/g or more,d) from 0.5 to 8% by weight, based on a), of a C.sub.3 - to C.sub.6 -hydrocarbon, and, if desired,e) conventional additives in effective amounts, have good flow properties and low adhesion during prefoaming.
    Type: Grant
    Filed: May 3, 1991
    Date of Patent: March 17, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Wittenberg, Klaus Hahn, Uwe Guhr, Hans Hintz, Michael P. O'Callaghan, deceased, Michael Riethues
  • Patent number: 5096555
    Abstract: A heat-curable, cathodically depositable aqueous electrocoating composition contains(A) from 50 to 95% by weight of a polymerization or polycondensation or polyaddition product which has an average molecular weight of from 200 to 20,000 and primary and/or secondary hydroxyl groups and primary, secondary and/or tertiary amino groups and is water-thinnable on protonation with an acid, and(B) from 5 to 50% by weight of a water-thinnable crosslinking agent having cationic groups or groups which are convertible into cationic groups by protonation with an acid.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: March 17, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Schupp, Thomas Schwerzel, Klaus Huemke, Dieter Faul
  • Patent number: 5097053
    Abstract: One-component, moisture-curable sealant compositions having fast cure times comprise a mixture of a silane-capped polyurethane polymer, an aminosilane cross-linking agent, and a silyl-substituted guanidine accelerator.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: March 17, 1992
    Assignee: BASF Corporation
    Inventors: Jamil Baghdachi, Keith H. Mahoney
  • Patent number: 5096938
    Abstract: Radiation-curable catalysts are obtainable by reactingA) 1 equivalent of a dihydric to hexahydric oxyalkylated C.sub.2 -C.sub.10 -alcohol withB) from 0.05 to 1 equivalent of a dibasic to tetrabasic C.sub.3 -C.sub.36 -carboxylic acid or its anhydride andC) from 0.1 to 1.5 equivalents of acrylic acid and/or methacrylic acidand reacting the excess carboxyl groups with an equivalent amount of epoxide compound, and are used in radiation-curable coating materials.
    Type: Grant
    Filed: April 3, 1990
    Date of Patent: March 17, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Erich Beck, Wolfram Weiss, Horst Schmidt
  • Patent number: 5097376
    Abstract: A container, in particular a tape cassette having a container housing and a recording medium present therein is provided in and/or on the housing and/or on the recording medium itself with a fragrance material which is either introduced into the plastic material or applied to the plastic parts.This fragrance material can be used for any containers with recording media, in particular for cassettes, of all types for audio information, video information, data or other information.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: March 17, 1992
    Assignee: BASF Aktiengesellschaft
    Inventor: Tasneem A. Khan
  • Patent number: 5096641
    Abstract: Foam rubber articles may be prepared by shaping foamed latex into the desired configuration and gelling it. The gelled latex may then be cut to the required thickness to provide articles such as cosmetic puffs. The shaping process may use a disposable mold such as a circular polymeric casting or the mold may be permanent, such as glass, passing through a gelling chamber. The process reduces waste for products which has previously been cut from slab foam.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: March 17, 1992
    Assignee: BASF Corporation
    Inventor: Wietsma Popke
  • Patent number: 5095115
    Abstract: An improved process for preparing riboflavin 5'-phosphate (FMN) or its monosodium salt by reacting riboflavin with excess phosphorus oxychloride in a solvent, hydrolyzing of the resulting reaction mixture and, if desired, partially neutralizing with aqueous sodium hydroxide solution, comprises reacting the riboflavin with from 1.2 to 3 moles of phosphorus oxychloride per mole of riboflavin in a suitable lactone, especially .gamma.-butyrolactone, as solvent. The process is particularly advantageous when the reaction mixture is hydrolyzed at from 80.degree. to 90.degree. C. continuously or batchwise.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: March 10, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Johannes Grimmer, Hans Kiefer
  • Patent number: 5094797
    Abstract: Pigmented curable polyester molding compounds which cure to give homogeneously colored moldings contain an unsaturated polyester, copolymerizable monomers, a thermoplastic polymer and a color pigment and are prepared by dispersing the pigment in the molten thermoplastic in an extruder.
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: March 10, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Heel, Jan Holoch, Gerd Esswein, Friedrich Goffing
  • Patent number: 5094767
    Abstract: Highly viscous magnetic fluids essentially consist of superparamagnetic solid particles coated with a surfactant and colloidally dispersed in a carrier liquid.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: March 10, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunther Mair, Rainer Feser
  • Patent number: 5095021
    Abstract: Phenylalkylamines of the formula ##STR1## where n is 5, 6, 7, 8 or 9, m is 1, 2 or 3, R.sup.1 is methyl, halogen, substituted or unsubstituted aryl or substituted or unsubstituted phenoxy, and, when m is 2, two adjacent radicals R.sup.1 together denote the radical ##STR2## X is oxygen, except when R.sup.1 is methyl, or the radical ##STR3## R.sup.4 is isopropyl, tert-butyl or substituted or unsubstituted phenyl and R.sup.5 is H or OH, R.sup.2 and R.sup.3 are each hydrogen and, when X is oxygen, R.sup.2 and R.sup.3 additionally denote methyl or ethyl, and their plant-tolerated salts, and fungicides containing these compounds.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: March 10, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Zipplies, Ernst Buschmann, Eberhard Ammermann, Gisela Lorenz
  • Patent number: 5094867
    Abstract: A process for removing heavy metal ions from wine and wine-like beverages, which entails treating each 100 l of the beverage with from 5 to 250 g of a polymer which contains, as copolymerized units, from 50 to 99.5% by weight of at least one basic vinylheterocycle with a pK.sub.a of not less than 3.8 and from 0 to 49.5% by weight of another copolymerizable monomer, and which has been prepared with the exclusion of oxygen and of polymerization initiators and in the presence of from 0.5 to 10% by weight, based on the monomers, of a crosslinker.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: March 10, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Detering, Axel Sanner, Bernhard Fussnegger
  • Patent number: 5093046
    Abstract: Ethereal solutions of arylmethylmagnesium halidesAr--CH.sub.2 --Mg--Hal I(where Ar is unsubstituted or substituted aryl and Hal is Cl or Br) are prepared by the Grignard method from an arylmethyl halide IIAr--CH.sub.2 --Hal IIand magnesium in an ether IIItert-butyl--O--R III(where R is C.sub.1 -C.sub.3 -alkyl) as solvent.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: March 3, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Reiner Kober, Rainer Seele, Thomas Zierke, Heinz Isak, Stefan Karbach, Guenter Wegner
  • Patent number: 5093412
    Abstract: Macromers for use in preparing stable, low viscosity graft polymer polyols of high solids content are disclosed. These macromers are easily made in high yield with short cycle times, and may be used to prepare graft dispersions containing amine based polyols.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: March 3, 1992
    Assignee: BASF Corporation
    Inventors: Donald C. Mente, John E. Davis, Steven D. Gagnon, Duane A. Heyman
  • Patent number: 5093308
    Abstract: Azo dyes useful for thermotransfer printing have the formula ##STR1## where R.sup.1 and R.sup.2 are each H; alkyl, alkoxyalkyl, alkanoyloxyalkyl, alkoxycarbonyloxyalkyl, alkoxycarbonylalkyl, haloalkyl, hydroxyalkyl or cyanoalkyl each of up to 20 carbon atoms and each of which may be substituted by phenyl, C.sub.1 -C.sub.4 -alkylphenyl, C.sub.1 -C.sub.4 -alkoxyphenyl, halophenyl, benzyloxy, C.sub.1 -C.sub.4 -alkylbenzyloxy, C.sub.1 -C.sub.4 -alkoxybenzyloxy, halobenzyloxy, halogen, hydroxyl or cyano; phenyl or cyclohexyl which may each be substituted by C.sub.1 -C.sub.15 -alkyl, C.sub.1 -C.sub.15 -alkoxy, halogen or benzyloxy; or a radical II[--W--O].sub.n --R.sup.4 IIwhere W is identical or different C.sub.2 -C.sub.5 -alkylene, n is 1-6, R.sup.4 is C.sub.1 -C.sub.4 -alkyl or phenyl which may be substituted by C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, R.sup.3 is H, NH.sub.2, OH or C.sub.1 -C.sub.3 -alkyl, X is H, Cl, Br, No.sub.2, methyl, phenoxy, tolyloxy, dimethylphenyloxy, chlorophenoxy or C.sub.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: March 3, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Ruediger Sens, Gunther Lamm, Karl-Heinz Etzbach
  • Patent number: 5093459
    Abstract: Solid, fusible bismaleimide resins formed from a mixture of a bismaleimide and an aminophenol still contain from 70 to 90 mol % of unconverted bismaleimide and from 30 to 60 mol % of unconverted aminophenol.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: March 3, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Roland Peter, Philipp Eisenbarth, Lothar Schlemmer
  • Patent number: 5093492
    Abstract: Methine dyes of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, X, Y and the rings A and B each have specific meanings, and methine dyes obtainable by reacting an organic mono- or polyisocyanate with such a methine dye of the abovementioned formal where only the radicals R.sup.1 and/and R.sup.4 have a group reacting with an organic mono- or polyisocyanate are useful in optical recording media.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: March 3, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Acker, Mathias Dust, Peter Neumann, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier
  • Patent number: 5093520
    Abstract: Monoethylenically unsaturated carboxylates are prepared by a process in which, following esterification,a) the product mixture is extracted in a first extraction stage with from 5 to 30% v/v of water, based on the product mixture, at a temperature of from 10.degree. to 40.degree. C., andb) the aqueous phase from the first extraction stage is extracted, in a second extraction stage, with from one to four times its weight of the alkanol to be esterified, at a temperature of from 10.degree. to 30.degree. C.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: March 3, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Nestler, Peter Ruckh, Manfred Lazarus
  • Patent number: 5093374
    Abstract: Expandable molding compositions having high heat distortion resistance and containing from 80 to 99% by weight of a styrene polymer, 1 to 20% by weight of poly-1,4-phenylene sulfide, from 1 to 10% by weight of a C.sub.3 -C.sub.6 -hydrocarbon as blowing agent and, if desired, customary additives, are obtained by suspension polymerization of a solution of the polyphenylene sulfide in styrene.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: March 3, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Dietmar Wittenberg
  • Patent number: 5093375
    Abstract: Bead-like expandable molding materials having high heat distortion resistance contain from 80 to 99% by weight of a styrene polymer, from 1 to 20% by weight of poly-(2,6-dimethyl)-1,4-diphenylene ether and from 3 to 10% by weight of a C.sub.3 -C.sub.6 -hydrocarbon as a blowing agent and may contain conventional additives. They are obtained by suspension polymerization of a solution of the polyphenylene ether in styrene.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: March 3, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Roland Gellert
  • Patent number: 5092935
    Abstract: A cementing composition useful in cementing oil, gas and water wells, comprising water, hydraulic cement and an effective amount of water soluble fluid loss additive comprised of a copolymer of acrylamide/vinyl formamide and derivatives thereof in a weight percent ratio of from about 95:5 to 5:95, said copolymer having a molecular weight range of from about 100,000 to 3,000,000. The composition can also optionally include a dispersant such as sodium or potassium salts or a sulfonated naphthalene formaldehyde condensate.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: March 3, 1992
    Assignee: BASF Corporation
    Inventors: Stefano C. Crema, Clare H. Kucera