Patents Assigned to BASF
  • Patent number: 5536876
    Abstract: Fiber-reactive formazan dyes are prepared by diazotizing a protectively formylated hydroxyphenylenediamine, coupling with a hydrazone compound, metallizing, eliminating the protective group, and reacting with a halotriazine and optionally thereafter with an amine or a hydroxy compound via novel aminophenol intermediates.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Claus Marschner, Manfred Patsch
  • Patent number: 5536842
    Abstract: A process for purifying indigo comprises extracting an aqueous leuco indigo alkali metal salt solution with an inert solvent under oxygen-excluding conditions and conventionally regenerating the indigo by oxidation.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Bergmann, Manfred Gang, Reinhold Kohlhaupt
  • Patent number: 5536766
    Abstract: A formaldehyde-free binding, impregnating or coating composition comprisesA) a polymer constituted to from 2 to 100% by weight of an ethylenically unsaturated acid or anhydride as comonomer, andB) at least one polyol selected froma triazine of the formula ##STR1## where R.sup.1 to R.sup.3 are each independently of the others a radical X[(C.sub.m H.sub.2m O).sub.n H] or N[(C.sub.m H.sub.2m O).sub.n H].sub.2 where X is NH, O or S, m is from 2 to 5 and n is from 1 to 10,a triazinetrione of the formula ##STR2## where R.sup.4 to R.sup.6 are each independently of the others a radical [(C.sub.m H.sub.2m O).sub.n H] where m is from 2 to 5 and n is from 1 to 10,a benzene or cyclohexyl derivative of the formula ##STR3## where R.sup.7 to R.sup.9 are each independently of the others a radical [X(C.sub.m H.sub.2m O).sub.n H], a radical N[C.sub.m H.sub.2m O).sub.n H].sub.2, a radical [Y(C.sub.m H.sub.2m O).sub.n H] or a radical [(C.sub.m H.sub.2m O).sub.n H] where X is NH, O or S, Y is bivalent C.sub.1 -C.sub.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Hermann Seyffer, Robert Rupaner, Erhard Gunther, Rainer Hummerich
  • Patent number: 5536779
    Abstract: A polymer powder obtained by drying an aqueous polymer dispersion, wherein the aqueous polymer dispersion is obtained by free-radical polymerization of unsaturated monomers and contains at least one added starch-degradation product which is obtained by hydrolysis in the aqueous phase, is water soluble at room temperature and has a weight average molecular weight M.sub.w of from 2500 to 25000.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Kurt Wendel, Thomas Schwerzel, Guenter Hirsch
  • Patent number: 5536877
    Abstract: A process for the preparation of arylbenzylamines by the reaction of arylamines with a benzyl chloride, wherein the reaction is carried out in the presence of both a phase-transfer catalyst and a base selected from the group consisting of the inorganic bases and salts of weak organic acids.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Hammer, Gerd Husslein
  • Patent number: 5535945
    Abstract: Process and system for reclaiming polymeric fibers (e.g., nylon) from post-consumer carpeting includes shredding the post-consumer carpeting into strips, dismantling the carpet strips to form a mixture of the fibers to be reclaimed and the backing material to be discarded, and then separating a substantial portion of the fibers from the backing material. Preferably, the carpet strips are dismantled by impacting the strips of carpeting against an anvil structure with hammer elements using, e.g., a hammermill. A secondary reclamation system is provided whereby the separated backing material which may contain some fibers bound thereto is subjected to secondary dismantling and separation operations. The fractions obtained from the primary and secondary separation operations containing predominantly the polymeric fibers may thus be combined so as to form a process discharge stream which can be pelletized and/or baled as desired.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: July 16, 1996
    Assignees: BASF Corportion, Shred-Tech Limited
    Inventors: Randall A. Sferrazza, Alan C. Handermann, Cecil H. Atwell, David K. Yamamoto
  • Patent number: 5536791
    Abstract: The present invention relates to wire coatings which containa) 20 to 50% by weight of a tris-2-hydroxyethyl isocyanurate-modified polyester,b) 2 to 35% by weight of a bismaleimide resin,c) 0.1 to 3% by weight of a catalyst, preferably a titanate catalyst, andd) 35 to 77% by weight of organic solvents, with respect to the total weight of the wire coating, which is 100% by weight. The invention also relates to processes for the preparation of the wire coatings according to the invention.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Lacke + Farben, AG
    Inventors: Michael Schink, Gerold Schmidt, Klaus W. Lienert, Roland Peter
  • Patent number: 5536440
    Abstract: A hydrophilic co-polymer, useful in stabilizing laundry detergent, comprising two hydrophilic monomers: an unsaturated hydrophilic monomer co-polymerized with a hydrophilic oxyalkylated monomer.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Corporation
    Inventors: Sridhar Gopalkrishnan, John V. Sherman, Kathleen M. Guiney, David T. Durocher, Michael C. Welch
  • Patent number: 5536789
    Abstract: Propylene polymers have a molecular weight ratio Q (M.sub.w /M.sub.n) of from 6 to 30 and are obtainable by Ziegler-Natta polymerization in the presence of hydrogen as molecular weight regulator and are particularly suitable for the production of films and moldings.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Harald Schwager, Peter Koelle, Rueger Schlund, Ralf Zolk, Juergen Kerth, Guenther Schweter, Klaus-Dieter Hungenberg, Werner Schoene
  • Patent number: 5536309
    Abstract: Bismuth vanadate pigments haveBi.sub.x E.sub.v Si.sub.y V.sub.(1-z) P.sub.z O.sub.wwhere x is from 0.8 to 1.2, y is from 0 to 4, z is from 0 to 0.2, v is from >0 to 0.5, and w is the number of oxygen atoms for satisfying the valence requirements of the cations, with the following provisos:a) when y=0, then z is from >0 to <0.05 and E is calcium or a mixture of calcium and zinc and/or magnesium in which the molar ratio of calcium to zinc and/or magnesium is .gtoreq.1,b) when 0<y<1, then z is from 0 to 0.2 and E is calcium or a mixture of calcium and zinc and/or magnesium in which the molar ratio of calcium to zinc and/or magnesium is .gtoreq.1,c) when y.gtoreq.1, then z is from 0 to 0.2 and E is zinc, magnesium, calcium,, lithium, aluminum or mixtures thereof.
    Type: Grant
    Filed: August 24, 1994
    Date of Patent: July 16, 1996
    Assignee: BASF Lacke & Farben Aktiengesellschaft
    Inventors: Guenter Etzrodt, Helmut Knittel, Hansulrich Reisacher
  • Patent number: 5536788
    Abstract: Carboxyl-containing isobutene copolymers are obtainablea) by cationic polymerization of a mixture of from 1 to 99 mol % of isobutene and from 99 to 1 mol % of a 2-methylalk-1-ene at less than 20.degree. C. in the presence of a halogen-containing Lewis acid andb) subsequent grafting of the isobutene copolymer obtainable in this manner with an .alpha.,.beta.-ethylenically unsaturated carboxylic acid or carboxylic acid derivative at above 100.degree. C. and in the presence of a free radical initiator.Such carboxyl-containing isobutene copolymers are particularly suitable as adhesive raw materials or as sealing compounds.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Deckers, Hans-Joachim Muller, Roger Klimesch, Eckehardt Wistuba, Heinz Plaumann, Erich Kolk, Gunther Isbarn, Karl-Heinz Fauth, Joachim Krobb
  • Patent number: 5536776
    Abstract: A compound that is useful as a dispersant for pigments in waterborne coating compositions, particularly in cathodic electrocoat compositions, is described. The compound comprises an acrylic backbone having a pigment-interactive substituent and a stabilizing substituent. The pigment-interactive substituent has at least one primary amino group. The stabilizing substituent comprises an alkoxy-terminated polyalkylene oxide structure. The dispersant is useful in preparing electrocoat coating compositions.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Corporation
    Inventors: Clint W. Carpenter, Timothy S. December, William D. Hardigan
  • Patent number: 5536370
    Abstract: Condensates of polyalkylenepolyamines which are obtainable by(a) partial amidation of polyalkylenepolyamines and(b) condensation of the partially amidated polyalkylenepolyamines with bifunctional or polyfunctional crosslinking agentsto give crosslinked polyalkylenepolyamines which, in 20% strength aqueous solution at 20.degree. C., have a viscosity of at least 100 mPa.s, processes for the preparation of the condensates of polyalkylenepolyamines by partial amidation of polyalkylenepolyamines with carboxylic acids, carboxylic esters, carboxylic anhydrides or carbonyl halides and crosslinking of the partially amidated polyalkylenepolyamines with bifunctional or polyfunctional crosslinking agents, from 0.001 to 10 parts by weight of a crosslinking agent being used per part by weight of the partially amidated polyalkylenepolyamines, and the use of the resulting condensates as drainage aids, flocculants, retention aids and fixing agents in papermaking.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Scherr, Wolfgang Reuther, Primoz Lorencak, Dietmar Moench, Friedrich Linhart, Juergen Weiser
  • Patent number: 5536785
    Abstract: A thermosetting powder coating composition resistant to overspray incompatibility defects that comprises solid particulates of a uniform mixture of (a) a polyester resin having an average of two or more carboxyl groups, (b) a first crosslinker that is reactive toward the carboxyl groups of the polyester resin, (c) from 1% to 20% of a reactive acrylic copolymer having a weight average molecular weight of from 10,000 to 40,000, and (d) a second crosslinker that is reactive toward the reactive functionality of the acrylic copolymer is described.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Corporation
    Inventors: Richard J. Foukes, Cynthia A. Stants
  • Patent number: 5534306
    Abstract: The invention relates to a process for the preparation of multicoat finishes of the basecoat/clearcoat type in which transparent topcoats are employed which contain(A) as binder, an autocrosslinkable polyacrylate resin which contains on statistical average at least one epoxide group, at least one acid anhydride group and at least 0.2 tri-, di- or monoalkoxysilane group per molecule, or a mixture of such autocrosslinkable polyacrylate resins, and(B) at least one acid and/or at least one base as crosslinking catalyst.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: July 9, 1996
    Assignee: BASF Lacke + Farben, AG
    Inventors: Ulrike Rockrath, Peter Betz, Ulrich Poth, Georg Wigger
  • Patent number: 5534582
    Abstract: Thermoplastics film containing inorganic fillers, metal/plastics composite containing inorganic fillers and process for the production thereof.The present invention relates to thermoplastics films, which contain at least 0.1% by weight, preferably 0.5 to 6% by weight, based on the total weight of the mixture of plastics and filler, of one or more metal powders, selected from aluminum powder, magnesium powder, zinc powder and manganese powder. The invention further relates to metal/plastics composites containing these metal powders, and processes for the production of the thermoplastics films and the metal/plastics composites. The plastics films and the metal/plastics composites are used for producing packaging containers.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: July 9, 1996
    Assignee: BASF Lacke + Farben, AG
    Inventors: Siegfried Krause, Leonidas Kiriazis
  • Patent number: 5534653
    Abstract: p-Hydroxyaniline derivatives of the formula I ##STR1## where the substituents have the following meanings: R.sup.1 is unsubstituted or substituted bicycloalkyl or bicycloalkenyl;R.sup.2 and R.sup.3 independently of one another are halogen, alkyl, haloalkyl, alkoxy or haloalkoxy;R.sup.4 is unsubstituted or substituted alkyl, alkenyl, cycloalkyl, cycloalkenyl or aryl,OR.sup.5 or NR.sup.5 R.sup.6, whereR.sup.5 is unsubstituted or substituted alkyl, alkenyl, cycloalkyl, cycloalkenyl or aryl, andR.sup.6 is hydrogen or alkyl,and their salts, processes for their preparation, compositions containing them and their use for controlling harmful fungi or pests are described.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: July 9, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Oliver Wagner, Karl Eicken, Norbert Gotz, Harald Rang, Eberhard Ammermann, Gisela Lorenz
  • Patent number: 5534627
    Abstract: Polycyclic vat dyes of the general formula I ##STR1## where X is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen or nitro, obtainable by reacting (9)-benzo-5-aminoanthraquinonyl(2,1-h)-8-azapyrenone-3(II) ##STR2## with a benzoyl chloride of the formula III ##STR3## in a dipolar aprotic solvent.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: July 9, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Bergmann, Harald Schlueter, Michael Schmitt
  • Patent number: 5533883
    Abstract: A spin pack for spinning synthetic fibers from two or more liquid polymer streams includes a supply for at least two discrete polymer streams without mixing with another discrete stream to the spin pack; a spinneret having extrusion orifices; and flow distribution plate sets. The flow distribution plate sets include at least one patterned plate having edges which define a substantially regular two-dimensional geometric shape, a substantially planar upstream surface, a substantially planar downstream surface and at least one flow distribution pattern stenciled therein by cutting through. For each patterned plate, at least one boundary plate stacked sealingly adjacent thereto and having edges which define a substantially regular geometric shape, a substantially planar upstream surface and a substantially planar downstream surface.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: July 9, 1996
    Assignee: BASF Corporation
    Inventors: John A. Hodan, Otto M. Ilg
  • Patent number: 5534183
    Abstract: A stable aqueous detergent composition, comprising: (a) about 5.70% of detergent active matter selected from the group consisting of anionic, nonionic, cationic, amphoteric, and zwitterionic surfactants; (b) about 1-60% of one or more electrolytes; and (c) about 0.01-5% of at least one hydrophilic copolymer comprising hydrophilic monomer and oxyethylated monomer. In particular, the hydrophilic copolymer is of a structure represented by ##STR1## wherein the above-stated substituents are defined herein.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: July 9, 1996
    Assignee: BASF Corporation
    Inventors: Sridhar Gopalkrishnan, John V. Sherman, Kathleen M. Guiney, David T. Durocher, Michael C. Welch