Patents Assigned to BASF
  • Patent number: 5283290
    Abstract: The present invention relates to a coating agent containing A) a component containing carboxyl and tertiary amino groups and a polyepoxy resin B). A) consists of 10 to 90% by weight of a carboxyl- and amino-containing polyacrylate (A1) having an acid number from 20 to 140 and an amine number from 5 to 60 and 90 to 10% by weight of a carboxyl- and amino-containing polyester (A2) having an acid number from 10 to 160 and an amine number from 3 to 90.(A2) is obtainable by reaction ofa) polycarboxylic acids or anhydrides thereof, if desired together with monocarboxylic acids,b) polyols, if desired together with monools, andc) further modifying components and, if desired,d) a component which reacts with the reaction product from a), b) and possibly c),with the proviso that the final product contains tertiary amino groups originating from component a) and/or b) and/or d), the sum of components (A1) to (A2) being 100% by weight.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: February 1, 1994
    Assignee: BASF Lacke & Farben AG
    Inventors: Werner A. Jung, Udo Vorbeck
  • Patent number: 5283084
    Abstract: The presence of an acid catalyst in a clearcoat composition enables the production of a wrinkle-free coating in a process comprising the simultaneous curing of applied layers of both a waterborne basecoat composition as well as a solventborne clearcoat composition. The waterborne basecoat composition comprises an organic resin, a crosslinker, and a free amine. The solventborne clearcoat composition comprises an acid catalyst in an amount significantly higher than the quantity normally used in high solids original equipment manufacturer clearcoat compositions, a polymer which is crosslinkable with melamine, and a monomeric melamine type crosslinking resin for crosslinking the polymer. The process is most preferably used to make an automotive quality topcoat.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: February 1, 1994
    Assignee: BASF Corporation
    Inventor: David K. K. Lau
  • Patent number: 5281634
    Abstract: The invention relates to a curable, thickened molding material based on vinyl ester resins or vinyl ester urethane resins and containing a basic metal compound acting as thickening agent and also an acid group-containing thermoplastic vinyl polymer which is compatible with said resins.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: January 25, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Anton Hesse, Edwin Cramer, Gerhard Georg, Birgit Potthoff-Karl
  • Patent number: 5281572
    Abstract: Bichromophoric methine and azamethine transfer dyes have the formulaZ.sup.2 --Z.sup.1 --LY.sup.1 --Y.sup.2whereinL is a bridge member which does not permit any conjugation of .pi.-electrons between Z.sup.1 and Y.sup.1,Y.sup.1 and Z.sup.1 are each independently of the other aminophenylene, which may be benzofused, or heterocyclyl andY.sup.2 and Z.sup.2 are each independently of the other benzoquinoneiminyl, which may be benzofused, or heterocyclyl.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: January 25, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Bach, Karl-Heinz Etzbach, Ruediger Sens
  • Patent number: 5281625
    Abstract: Guanidines I ##STR1## (A=C.sub.5 -C.sub.12 -cycloalkyl which may bear up to three further substituents; benzyl substituted in the para-position; R.sup.1, R.sup.2, R.sup.3 =H, C.sub.1 -C.sub.4 -alkyl; R.sup.4 =C.sub.5 -C.sub.18 -alkyl which may be interrupted by oxygen, C.sub.5 -C.sub.18 -alkenyl, C.sub.4 -C.sub.18 -alkynyl or phenyl-C.sub.1 -C.sub.6 -alkyl, and these groups may bear up to three further substituents and the phenyl moiety of the phenylalkyl may additionally bear a phenoxy group or up to three C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.6 -alkyl or haloalkyl groups, C.sub.5 -C.sub.6 -cycloalkyl-C.sub.1 -C.sub.8 -alkyl, where the ring may bear up to three further substituents; A=benzyl and R.sup.4 =C.sub.3 -C.sub.4 -alkyl which may be interrupted by oxygen, or C.sub.4 -alkenyl, both of which may bear up to three further substituents; R.sup.3 +R.sup.4 =C.sub.5 -C.sub.
    Type: Grant
    Filed: December 4, 1991
    Date of Patent: January 25, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Zipplies, Hubert Sauter, Franz Roehl, Eberhard Ammermann, Gisela Lorenz
  • Patent number: 5281468
    Abstract: The present invention relates to a process in which1. a water-dilutable basecoat composition is applied which contains at least one water-dilutable binder, metallic pigments, if desired color pigments, if desired conventional auxiliaries and additives and up to 20% by weight of organic solvents,2. a polymer film is formed from this basecoat composition,3. a transparent topcoat containing a polymer containing silyl groups and obtainable by copolymerization of p1 p.sub.1) 0.1 to 40% by weight of ethylenically unsaturated silane monomers of the general formula ##STR1## where R.sup.1 is alkyl, aryl, acyl, aralkyl having 1 to 10 carbon atomsR.sup.2 is an organic radical having a polymerizable double bondX is a hydrolyzable groupn is 1, 2 or 3p.sub.2) 5 to 30 % by weight, preferably 8 to 25% by weight, of monomers having at least 2 polymerizable ethylenically unsaturated double bonds andp.sub.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: January 25, 1994
    Assignee: BASF Lacke + Farben Aktiengesellschaft
    Inventors: Konrad Klier, Hans-Joachim Streitberger
  • Patent number: 5281443
    Abstract: A method of coating an article to prevent yellowing of the clearcoat is described. The method comprises the steps of(A) coating at least one layer on an article with a coating composition comprising a cross-linkable polymer and a cross-linking agent, said composition being substantially free of strong acid,(B) coating a clearcoat layer above the layer from step A) with a coating composition comprising1) a polymer comprising a hydroxy functional group, and2) a blocked isocyanate cross-linking agent, andC) curing the coated article.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: January 25, 1994
    Assignee: BASF Corporation
    Inventors: Rodney L. Briggs, Michael Knight
  • Patent number: 5281729
    Abstract: A continuous closed-system process for the environmentally friendly drying and purification of benzanthrone which comprises the steps of charging a benzanthrone-containing paste of pumpable consistency onto a melt held in a stirred kettle, dewatering and melting the paste by means of steam, condensing the water vapor emerging from the stirred kettle, flaking the melt from the stirred kettle by means of a rotating drum, and packaging the flaked solids.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: January 25, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Borho, Zafirios Grammatis, Karl-Heinz Hennicke, Wolfgang Mach, Karl Mayer, Karl-Heinz Sartor, Wolf D. Stege, Peter Thoma, Ewald Vollmerhaus
  • Patent number: 5279470
    Abstract: A winding shaft is described, having self-tensioning individual winding elements (6) for winding mandrels mounted on it in such a way that they can be driven, which include in each case in an annular groove (14) of each individual winding element a compliant tensioning means, the outside diameter of which is greater than the inside diameter of the winding mandrels. The winding means comprises a plurality of cylindrical-annular segments (2) arranged on the circumference of the individual winding element in the annular groove, the end faces (13) of which segments are beveled and are mounted radially displaceably on the inner face of the intermediate pieces (3), there being seated between the inside of the segments and the bottom of the annular groove a spring element, comprising either a leaf spring or a plurality of helical springs with ball thrust pieces.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: January 18, 1994
    Assignee: BASF Magnetics GmbH
    Inventors: Josef Birkmann, Friedrich Held, Gottfried Lutz, Bernd Scholtysik, Jose Toral
  • Patent number: 5280118
    Abstract: Trifluoro- and chlorodifluoromethoxy-1,3,5-triazines of the formula I ##STR1## where R.sup.1 and R.sup.2 are each, independently of one another, hydrogen, halogen or C.sub.1 -C.sub.4 -haloalkyl, and R.sup.1 is also trifluoro- or chlorodifluoromethoxy, and n is 0 or 1, excepting 2,4-dichloro-6-trifluoromethoxy-1,3,5-triazine, are prepared as described.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: January 18, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hamprecht, Horst Mayer, Hans-Josef Wolf
  • Patent number: 5280009
    Abstract: Pyrimidine derivatives of the Formula Ia or Ib ##STR1## where the substituents have the following meanings: R.sup.1 is hydrogen or alkyl;A is a substituted or unsubstituted bi- or tricyclic carbo- or heterocyclic radical which may contain one or several double bonds;R.sup.5 is H or alkyl;X is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio or haloalkylthio; and addition salts thereof with organic or inorganic acids and the use of said pyrimidine derivative to control undesirable plant growth.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: January 18, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hamprecht, Klaus Ditrich, Karl-Otto Westphalen, Matthias Gerber, Helmut Walter
  • Patent number: 5279613
    Abstract: Copolymers which are obtainable by free radical copolymerization of (a) C.sub.8 --C.sub.40 -monoolefins with (b) ethylenically unsaturated C.sub.4 -C.sub.8 -dicarboxylic anhydrides by mass polymerization at from 80.degree. to 300.degree. C. to give copolymers having molecular weights of from 500 to 20,000 g/mol, subsequent solvolysis of the anhydride groups of the copolymers and partial or complete neutralization of the carboxyl groups formed during the solvolysis, in an aqueous medium by means of a base, and which are present in the form of aqueous dispersions or solutions, are used as agents for rendering leathers and skins water-repellent.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: January 18, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Ortwin Schaffer, Herbert Bay, Karl Stork, Norbert Greif, Knut Oppenlaender, Walter Denzinger, Heinrich Hartmann
  • Patent number: 5280036
    Abstract: N-substituted azoles of the formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3 are each hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.3 -C.sub.10 -cycloalkyl, nitro or cyano,Q is an unsubstituted or substituted azole group of the formulae IIa-IIf ##STR2## R.sup.4 to R.sup.15 denoting hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.3 -C.sub.10 -cycloalkyl or aryl which is unsubstituted or mono-, di- or trisubstituted by halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl or C.sub.1 -C.sub.4 -haloalkoxy, andX is, in the case of the azole group IIa, --CH.sub.2 -- or --O(CH.sub.2).sub.n --, n being one of the integers 1, 2 or 3, or, in the case of the azole groups IIb-IIf, --OCH.sub.2 --,pesticides containing compounds I as active ingredients, and a process for combating pests.
    Type: Grant
    Filed: November 9, 1992
    Date of Patent: January 18, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Buerstinghaus, Hans-Juergen Neubauer, Peter Hofmeister, Christoph Kuenast, Joachim Leyendecker, Uwe Kardorff
  • Patent number: 5278195
    Abstract: A process for the production of plastic foams, preferably rigid foams containing urethane groups or urethane and isocyanurate groups, by reactinga) an organic and/or modified organic polyisocyanate withb) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired,c) a low-molecular-weight chain extender and/or cross-linking agent,in the presence ofd) a blowing agent,e) a catalyst and, if desired,f) assistants and/or additives,in which the blowing agent (d) used is at least one vinylfluoroalkane of the formula CH.sub.2 .dbd.CH--C.sub.n F.sub.
    Type: Grant
    Filed: December 8, 1992
    Date of Patent: January 11, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Otto Volkert, Corinne A. Meynard
  • Patent number: 5278253
    Abstract: A process for the continuous preparation of ABS polymers by free-radical-initiated polymerization of, in particular, styrene and acrylonitrile in the presence of polybutadiene, in the presence or absence of a solvent, in a reactor cascade comprising at least 3 stirred reactors operating essentially without back-mixing, at least some of which contain internal cooling tubes for dissipating the heat of polymerization, at from 50 to 180.degree. C., phase inversion taking place in one of the reactors which contains means for generating a high shear force, and an apparatus for carrying out the process comprising an essentially cylindrical/tubular vessel jacket and a cylindrical internal element connected to a stirrer shaft by rotational force and having an external diameter which is slightly less than the internal diameter of the vessel jacket.
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: January 11, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Ehrenfried Baumgartner, Juergen Hormann, Rainer Moors, Hansjoerg Schaech
  • Patent number: 5277711
    Abstract: Mixtures useful as luster pigments for coloring paints, printing inks, plastics, decorative cosmetic preparations and ceramic products and usable in dry form in printing and coating processes consist ofA) iron oxide-coated aluminum particles andB) iron oxide-coated mica particles with or without a prior coating of a colorless, highly refractive metal oxide as essential components.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: January 11, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Schmidt, Werner Ostertag, Norbert Mronga, Raimund Schmid
  • Patent number: 5276104
    Abstract: The invention relates to copolymers containing carboxyl groups and having an acid number of 20 to 150 mg of KOH/g and a number average molecular weight of 2000 to 8000, which can preferably be prepared from copolymers containing hydroxyl groups by reaction with carboxylic anhydrides, to a process for their preparation and their use in coating agents. The copolymers contain a vinyl ester, a vinyl aromatic, a hydroxyalkyl ester of an .alpha.,.beta.-unsaturated carboxylic acid, and optionally other monomers that may contain acid groups.
    Type: Grant
    Filed: December 5, 1991
    Date of Patent: January 4, 1994
    Assignee: BASF Lacke+ Farben Aktiengesellschaft[DE/DE
    Inventors: Peter Hoffmann, Werner A. Jung
  • Patent number: 5276148
    Abstract: Reactive dyes of the formula ##STR1## where n is 0 or 1,R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,A is unsubstituted or substituted C.sub.2 -C.sub.8 -alkylene,Y is vinyl or a radical of the formula --CH.sub.2 --CH.sub.2 --Q, whereQ is a group which can be eliminated under alkaline reaction conditions,D.sup.1 is phenyl or naphthyl, where these radicals may be substituted,D.sup.2 is phenylene or naphthylene, where these radicals may be substituted, andZ is a reactive radical,with the proviso thata) n is zero when D.sup.1 is substituted by unsubstituted or substituted phenylazo or by unsubstituted or substituted naphthylazo andb) the reactive radical Z is not devised from the triazine series when n is zero and D.sup.1 is dihydroxysulfonylphenyl or trihydroxysulfonylnaphthyl,are used for dyeing and printing organic substrates containing hydroxyl groups or nitrogen atoms.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: January 4, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Siegel, Manfred Patsch
  • Patent number: 5276256
    Abstract: A molding composition containing, based on the total weight of the composition:A) at least 40% by weight of at least one halogen-free polycarbonate;B) 5-40% by weight of at least one halogen-free graft copolymer composed of;1) 40-80% by weight of an elastomer with a glass transition temperature below 0.degree. C., which elastomer is composed of, at least 50% by weight of a diene or of an at least C.sub.4 -alkyl acrylate, 1-40% by weight of a halogen-free phosphorus compound of the formula ##STR1## 2) 20-60% by weight of a shell composed of, 40-98% by weight of styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.8 -alkyl (meth)acrylate, and 2-60% by weight of (meth)acrylonitrile and/or maleic anhydride;C) 5-40% by weight of a halogen-free thermoplastic copolymer composed of, 50-95% by weight of styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: January 4, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Niessner, Rainer Neumann, Karl Ruppmich, Friedrich Seitz, Doris Zeltner
  • Patent number: 5275847
    Abstract: The invention relates to a process for the production of a multi-layered coating in which the aqueous top coating composition contains a water-dilutable polyacrylate resin which has a hydroxyl number of 40 to 200, an acid number of 20 to 100 and a glass transition temperature (T.sub.G) of -40.degree. C. to +60.degree. C. and can be prepared by adding a mixture (I) of a (meth)acrylic acid ester and a copolymerizable monomer containing hydroxyl groups to an organic solvent, subjecting the mixture to free radical polymerization and, when the addition of mixture (I) has ended, adding a monomer containing carboxyl groups and polymerizing the mixture further.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: January 4, 1994
    Assignee: BASF Lacke+Farben Aktiengesellschaft
    Inventors: Stephan Schwarte, Ulrich Poth