Patents Assigned to BASF
  • Patent number: 5985985
    Abstract: Polyurethanes I obtained by reacting1) an isocyanate II as defined in the specification with2) a compound V which is suitable as chain extender, obtained bya) reacting a polyhydric alcohol VI withb1) a compound VII, which includes an epoxy function and, in addition, an alcohol-reactive functional group, to form a compound VIII, and reacting a compound VIII with an .alpha.,.beta.-olefinically unsaturated carboxylic acid IX to give a compound X orb2) an .alpha.,.beta.-olefinically unsaturated carboxylic acid IX, to give a compound X andc) reacting a compound X with an amine XI having at least one primary amino which is reactive toward the .alpha.,.beta. multiple bond of IX,the sum of the number of isocyanato-reactive aminos and hydroxyls of the compound V being greater than the number of isocyanate groups of the compound II. The polyurethanes are useful as binders or binder components for pigment0free or pigment-containing coatings.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: November 16, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Weingart, Uwe Burkhardt, Stephan Bauer, Wolfgang Reich, Albert Kohl
  • Patent number: 5985943
    Abstract: The present invention relates to expandable polystyrene beads containing blowing agent which are coated with from 0.01 to 0.5% by weight of a hydrophobicizing agent which melts above 25.degree. C. and has a mean particle size of less than 100 .mu.m. The beads can be converted into foam moldings having reduced water absorption capacity.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: November 16, 1999
    Assignee: Basf Aktiengesellschaft
    Inventors: Klaus Hahn, Horst Steinbrecher, Dieter Naegele, Achim Loffler, Manfred Gurtler, Hagen Schmitt, Jurgen Reichert
  • Patent number: 5981080
    Abstract: The present invention relates to a process for producing a multicoat paint system, in which(1) an optionally pigmented basecoat is applied to a substrate surface,(2) a polymer film is formed from the basecoat film applied in stage (1),(3) one or more further coating films are applied optionally thereto,(4) then a nonaqueous topcoat is applied which comprisesA) a hydroxy-functional polyacrylate resin,B) as crosslinking agent tris(alkoxycarbonylamino)triazine andC) optionally further crosslinking agents, such as blocked isocyanates, which are different from the tris(alkoxycarbonylamino)triazine, and/or amino resins,and subsequently(5) the coating films are baked together, where in that [Sic] the polyacrylate resin comprises secondary OH groups.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: November 9, 1999
    Assignee: BASF Coatings AG
    Inventors: Ulrike Rockrath, Hubert Baumgart
  • Patent number: 5980594
    Abstract: Reaction products of polymers of C.sub.2 -C.sub.6 -olefins having an average degree of polymerization P of from 5 to 100 and oxides of nitrogen or mixtures of oxides of nitrogen and oxygen are used as additives for fuels, in particular for fuels for gasoline engines.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudolf Kropp, Eckhard Hickmann, Klaus Ebel, Wolfgang Gunther, Hans Peter Rath, Harald Schwahn
  • Patent number: 5981799
    Abstract: A method is provided for purifying a crude N-acetyl-para-aminophenol (APAP) containing color bodies or their precursors, the method comprising: a) forming a hot aqueous solution of the crude APAP; and b) subsequently contacting the hot solution with an acid washed adsorbent carbon, e.g., an activated carbon, which acid washed carbon, prior to such contact, has been pretreated by contacting it with an aqueous solution of a reducing sulfite.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: November 9, 1999
    Assignee: BASF Corporation
    Inventors: Olan Stanley Fruchey, Edward G. Zey, Larry O. Wheeler
  • Patent number: 5981688
    Abstract: A process for preparing hydroxyl-containing polymers and, in particular, a process for preparing polytetrahydrofuran with terminal hydroxyl groups from the corresponding acyloxy-containing polymers by transesterification with alcohols is carried out continuously in at least one stirred vessel, with the foam produced in the transesterification being fed tangentially to a cylindrical container, preferably a cyclone separator, at an adequate velocity to destroy the foam. The liquid phase which separates out is recycled through a line to the at least one stirred vessel.This continuous process is preferably carried out in a cascade of stirred vessels, in which each stirred vessel or a subunit of at least two stirred vessels can in each case be coupled to a cylindrical container, preferably in the form of a cyclone separator.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Auer, Klaus Beiser, Jurgen Ciprian, Lothar Franz, Wolfgang Franzischka, Ulrich-Dieter Pessel, Werner Weinle
  • Patent number: 5981612
    Abstract: The flameproofed, rigid, isocyanate-based foams, in particular rigid polyurethane and polyisocyanurate foams, are produced by reactinga) organic and/or modified organic polyisocyanates withb) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired,c) low-molecular-weight chain extenders and/or crosslinking agents, in the presence ofd) blowing agents,e) catalysts,f) flameproofing agents, and, if desired,g) further auxiliaries and/or additives,wherein the flameproofing agent is a combination of at least one liquid flameproofing agent which is reactive toward isocyanates and at least one solid flameproofing agent.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Uwe Keppeler, Werner Hinz, Michael Reichelt
  • Patent number: 5981753
    Abstract: Disclosed herein are compounds pharmaceutical compositions containing same of the formula1. A compound of the Formula ##STR1## wherein X, X', X" and X'", A, B, D, R, and R' are as identified in the specification and their preparation. Pharmaceutical compositions containing same can be used in the treatment of cancer.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Keilhauer, Cynthia Romerdahl, Miguel Fernandez Brana, Xiao-Dong Qian, Peter Bousquet, Jose Maria Castellano Berlanga, Marina Moran Moset, Maria Jesus Perez De Vega
  • Patent number: 5981769
    Abstract: 1,6-hexanediol and .epsilon.-caprolactone are prepared from a carboxylic acid mixture comprising adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols which is obtained as a by-product in the oxidation of cyclohexane to cyclohexanone/cyclohexanol using oxygen or oxygen-containing gases by water extraction of the reaction mixture, by esterifying and hydrogenating a substream to give hexanediol and cyclizing 6-hydroxycaproic esters to give caprolactone.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Gerhard Baur, Rolf Fischer, Rolf Pinkos, Frank Stein, Boris Breitscheidel, Harald Rust
  • Patent number: 5981758
    Abstract: A process for preparing saccharincarbonyl halides of the formula 1 ##STR1## where: X is halogen,R.sup.1, R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.1 -C.sub.4 -alkoxy, optionally C.sub.1 -C.sub.4 -alkyl-, fluorine- or C.sub.1 -C.sub.4 -alkoxy-substituted benzyl or phenyl,R.sup.3 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl or phenyl or benzyl which is optionally mono- or polysubstituted by C.sub.1 -C.sub.4 -alkyl, halogen, C.sub.1 -C.sub.4 -haloalkyl or C.sub.1 -C.sub.4 -alkoxy,by reaction of an isophthalylsulfonamide 2 with an inorganic acid halide to give the saccharincarbonyl halide 1 ##STR2## is described.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Plath, Wolfgang von Deyn, Michael Rack, Ulf Misslitz
  • Patent number: 5980715
    Abstract: The invention relates to cathodically depositable, aqueous electrodeposition coating materials which are characterized in that they contain particles of wax having a diameter of from 1 to 20 .mu.m.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Lacke + Farben AG
    Inventors: Karin Eckert, Uwe Buder, deceased, Susanne Piontek, Margret Stockbrink, Ulrich Heimann
  • Patent number: 5981677
    Abstract: Radiation-curable compositions based on radiation-curable, free-radically polymerizable compounds comprise .alpha.-olefins having more than 8 carbon atoms.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Lukas Haussling, Ludwig Bernhard, Wolfgang Reich, Reinhold Schwalm, Erich Beck, Gabriele Hartmann
  • Patent number: 5982485
    Abstract: A method and an apparatus for determining the coverage of the interface between a liquid first phase and a liquid or gaseous second phase by at least one molecular species, at least the following procedural steps being carried out successively: the generation of a stream of droplets which contain at least the liquid first phase, in such a way that the droplets move along a droplet trajectory, and the non-contact determination of a measure of the coverage of the interface by the at least one molecular species at at least two different points along the droplet trajectory.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Schrof, Frank Runge, Jurgen Klingler
  • Patent number: 5981212
    Abstract: A process for increasing the riboflavin content in spray-dried discharges from riboflavin fermentations comprises inducing the lysis of the cells contained in the fermentation discharge by specific production or activation of enzymes which break down the cell walls and proteins. This autolysis can be induced in the riboflavin-producing strains of Ashbya gossypii, Eremothecium ashbyii and other microorganisms by incubation at from 35 to 55.degree. C. with substantial exclusion of oxygen for from 6 to 28 hours.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventor: Roland Kurth
  • Patent number: 5980601
    Abstract: A substantially non-caking solid is treated with distillation bottoms that are liquid at about 60.degree. C. or less and are obtained from production of an alcohol having the formula:R2--R1--OH,wherein R1 is substituted or unsubstituted branched, straight chain or cyclic C.sub.4 to C.sub.12 and R2 is OH or H.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Corporation
    Inventors: Andrew J. McNabb, R. Merritt Sink
  • Patent number: 5981798
    Abstract: A crystalline solid which has a sufficiently low hygroscopicity for processing and use and essentially consists of glycine-N,N-diacetic acid derivatives is prepared by adjusting the water content of the starting material containing the glycine-N,N-diacetic acid derivatives to a value of from 10 to 30% by weight, based on the starting material, and subsequently bringing about crystallization.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Schonherr, Matthias Rauls, Hermann Ascherl, Thomas Letzelter, Dieter Baumann, Birgit Potthoff-Karl
  • Patent number: 5981684
    Abstract: The invention relates to highly functionalized polyurethanes which are synthesized from molecules containing the functional groups A(B).sub.n, where A is an NCO group or a group reactive with an NCO group, B is an NCO group or a group reactive with an NCO group, A is reactive with B and n is a positive number and is at least equal to 2.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: November 9, 1999
    Assignee: Basf Aktiengesellschaft
    Inventors: Bernd Bruchmann, Frank Wingerter, Hermann Graf, Stefan Wolff
  • Patent number: 5981581
    Abstract: Phenylacetic acid derivatives of the formula I ##STR1##
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Bayer, Reinhard Kirstgen, Franz Rohl, Eberhard Ammermann, Gisela Lorenz
  • Patent number: 5981664
    Abstract: Molding compositions are based on polymers of ethylene made from(A) from 40 to 65% by weight of an ethylene polymer having a density in the range from 0.948 to 0.964 g/cm.sup.3, a melt flow index (MFI) of from 6 to 20 g/10 min and a mean molar mass distribution M.sub.w /M.sub.n in the range from 2 to 5,(B) from 35 to 60% by weight of an ethylene polymer having a density in the range from 0.935 to 0.953 g/cm.sup.3, a melt flow index (MFI) of from 0.1 to 0.35 g/10 min and a mean molar mass distribution M.sub.w /M.sub.n in the range from 6 to 20, and(C) from 0 to 6% by weight of the usual additives for thermoplastics,where the density of the molding compositions is in the range from 0.948 to 0.957 g/cm.sup.3, the melt flow index is in the range from 1.0 to 2.0 g/10 min, the mean molar mass distribution M.sub.w /M.sub.n is in the range from 3 to 10 and the difference of the densities of components A and B (.DELTA.D=D.sub.(A) -D.sub.(B)) is in the range from 0 to 0.029 g/cm.sup.3.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Petra Neumann, Siegfried Weber, Dieter Lilge, Hans-Helmut Gortz
  • Patent number: 5981440
    Abstract: Crop protection active compound formulations, comprising a cyclohexenone oxime ether of the general formula I ##STR1## where the radicals R.sup.1 -R.sup.6 have the following meanings: R.sup.1 is ethyl or propyl;R.sup.2 is hydrogen or an equivalent of an agriculturally utilizable cation;R.sup.3 is 2-thioethylpropyl, tetrahydrothiopyran-3-yl, tetrahydrothiopyran-4-yl, tetrahydropyran-3-yl, tetrahydropyran-4-yl, 1-methylthiocyclopropyl, 5-isopropylisoxazol-3-yl, 2,5-dimethylpyrazol-3-yl, 2,4,6-trimethylphenyl or 2,4,6-trimethyl-3-butyrylphenyl;R.sup.4 and R.sup.5 independently of one another are hydrogen, methyl or methoxycarbonyl;Alk is CH.sub.2 CH.sub.2, CH.sub.2 CH(CH.sub.3), CH.sub.2 CH.dbd.CH, CH.sub.2 CH.dbd.C(Cl) or CH.sub.2 CH.sub.2 CH.dbd.CH;R.sup.6 is hydrogen, phenyl, halophenyl, dihalophenyl, phenoxy, halophenoxy or dihalophenoxy;and a water-soluble basic salt of an acid having a pK.sub.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Bratz, Karl-Friedrich Jager, Rainer Berghaus, Hans Ziegler