Patents Assigned to BASF
  • Patent number: 4898909
    Abstract: Aqueous dispersions of copolymers having a glass transition temperature of not more than -45.degree. C. and a K value greater than 80 consist of not less than 80% by weight of acrylates of alkanols of 8 to 12 carbon atoms, from 1 to 4% by weight of .alpha.,.beta.- monoolefinically unsaturated carboxylic acids and/or their amide derivatives and from 0.1 to 3% by weight of .alpha.-methylstyrene, and are used for the production of self-adhesive structures having good tack at as low as -40.degree. C.
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: February 6, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Vietmeier, Peter Pfoehler, Gundo Brauch, Wolfgang Druschke, Albrecht Zosel
  • Patent number: 4898696
    Abstract: Microcapsules having melamine-formaldehyde precondensate capsule walls are prepared in a continuous process in aqueous dispersion starting from an appropriate melamine-formaldehyde precondensate in the presence of a water-soluble high polymer which contains strongly acid groups by further condensing the water-soluble precondensate until the solution starts to become turbid, then dispersing the material to be encapsulated in the resulting dispersion in the presence of the water-soluble high polymer which contains strongly acid groups and subsequently condensing the wall material of the resulting microcapsules to completion.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: February 6, 1990
    Assignee: BASF Aktiengesellschaft
    Inventor: Wolfgang Sliwka
  • Patent number: 4898610
    Abstract: Cyclohexane-1,3-dione derivatives of the formula ##STR1## where A is phenyl which is monosubstituted in the ortho- or meta-position by alkoxy, nitro, halogen or methylsulfonyl, or is phenyl which is monosubstituted in the ortho-, meta- or para-position by alkyl, phenyl, alkoxy, fluorine-substituted alkoxy, unsubstituted or substituted phenoxy, alkenyloxy, alkynyloxy, unsubstituted or substituted benzyloxy, alkylsulfinyl, alkylsulfonyl, alkylsulfonyloxy, trifluoromethyl, alkoxyalkyl or alkoxyalkoxy, or is phenyl which is disubstituted trisubstituted or tetrasubstituted by identical or different substituents selected from the group consisting of alkyl, alkoxy, halogen, nitro and 2,4-dichlorophenoxy, with the proviso that, where the substituents are identical, the disubstituted, trisubstituted or tetrasubstituted phenyl radical does not carry methyl radicals, R.sup.1 is hydrogen, methoxycarbonyl, ethoxycarbonyl, methyl or cyano, R.sup.2 is alkyl, and R.sup.
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: February 6, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Keil, Dieter Jahn, Rainer Becker, Wolfgang Rohr, Bruno Wuerzer
  • Patent number: 4897289
    Abstract: An electrically conductive surface layer is produced on moldings consisting of plastics which are soluble or swellable in organic solvents, the conductivity of the said layer being based on a system, incorporated therein, oforganic electron acceptors (I) on the one hand andorganic electron donors (II), iodides (III) or a mixture of (II) and (III) as electron donors, on the other hand,by a process in which the moldings are treated with organic solutions of these components.The products have a surface resistance of from 10.sup.8 to 10.sup.2 ohm and have the advantage that the remaining properties of the moldings are virtually unaffected by the agents (I) to (III).
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: January 30, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Alexander Aumueller, Peter Neumann, Gerd Blinne, Gerhard Lindenschmidt
  • Patent number: 4897215
    Abstract: A surfactant-based detergent contains water-soluble copolymers which contain(a) from 99.5 to 15 mol % of one or more monoethylenically unsaturated C.sub.3 - to C.sub.6 -monocarboxylic acids,(b) from 0.5 to 20 mol % or one or more comonomers which have two or more ethylenically unsaturated nonconjugated double bonds and are derived from esters,(c) from 0 to 84.5 mol % of one or more monoethylenically unsaturated C.sub.4 - to C.sub.6 -dicarboxylic acids,(d) from 0 to 20 mol % of one or more hydroxyalkyl esters of monoethlenically unsaturated C.sub.3 - to C.sub.6 -carboxlic acids and(e) from 0 to 30 mol % of other water-soluble monoethylenically unsaturated monomers copolymerizable with (a) to (d)as copolymerized units, with the proviso that the sum of the mol % ages (a) to (e) is always 100 and which have a Fikentscher K value of from 8 to 120.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: January 30, 1990
    Assignee: BASF Aktiegesellschaft
    Inventors: Wolfgang Trieselt, Richard Baur, Ekhard Winkler, Paul Diessel, Hans-Peter Seelmann-Eggebert, Dieter Boeckh, Heinrich Hartmann
  • Patent number: 4897431
    Abstract: Disclosed is a process for the preparation of primarily closed cell rigid foams, useful for strengthening mechanical construction parts or for use as insulation material, containing urethane groups, or urethane and isocyanurate groups where the polyol component is a higher molecular weight polyester polyol, containing in bonded form units having one or more of the structures: ##STR1## or a mixture of said polyester polyol and known polyester polyols and/or polyether polyols.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: January 30, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietrich Scherzer, Joachim Streu
  • Patent number: 4897220
    Abstract: A surfactant-based detergent contains water-soluble copolymers which contain(a) from 99.5 to 15 mol % of one or more monoethylenically unsaturated C.sub.3 - to C.sub.6 -monocarboxylic acids,(b) from 0.5 to 20 mol % of one or more comonomers which contain two or more ethylenically unsaturated nonconjugated double bonds and have one or more --CO--OX groups where X is hydrogen, an alkali metal, one equivalent of an alkaline earth metal or ammonium,(c) from 0 to 84.5 mol % of one or more monoethylenically unsaturated C.sub.4 - to C.sub.6 -dicarboxylic acids,(d) from 0 to 20 mol % of one or more hydroxyalkyl esters of monoethylenically unsaturated C.sub.3 - to C.sub.6 -carboxylic acids and(e) from 0 to 30 mol % of other water-soluble monoethylenically unsaturated monomers copolymerizable with (a) to (d)as copolymerized units, with the proviso that the sum of the mol % ages (a) to (e) is always 100 and which have a Finkentscher K value of from 8 to 120.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: January 30, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Trieselt, Richard Baur, Ekhard Winkler, Paul Diessel, Hans-Peter Seelmann-Eggebert, Dieter Boeckh, Heinrich Hartmann
  • Patent number: 4897425
    Abstract: Cyclohexylamines of the formula ##STR1## where X is a single bond or an alkylene chain, Y is hydrogen or an aryl, cyclohexyl, 4-cyclohexylcyclohexyl, perhydro-1- or 2-naphthyl or piperidyl radical, R.sup.1 and R.sup.2 are hydrogen, alkyl, alkenyl, alkynyl, hydroxyalkyl, cycloalkyl, cycloalkenyl or arylalkyl, or R.sup.1 and R.sup.2 together form an alkylene group and, togehter with the N atom, form a ring, and acid addition salts thereof, with the exception of compounds in which X is a single bond, Y is cyclohexyl, R.sup.1 and R.sup.2 are hydrogen or methyl, and the compounds in which X is C.sub.6 -, C.sub.7 - and C.sub.8 -alkyl, Y is hydrogen and R.sup.1 and R.sup.2 together with the N atom whose substituents they are form a 2,6-dimethylmorpholine radical, and fungicides containing such cyclohexylamines.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: January 30, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernhard Zipperer, Ernst Buschmann, Norbert Goetz, Ulrich Schirmer, Eberhard Ammermann, Ernst-Heinrich Pommer
  • Patent number: 4897480
    Abstract: N,N'-dialkyl-substituted cyclic urea derivatives of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each alkyl of 1 to 8 carbon atoms and A is CR.sup.3 R.sup.4 -CR.sup.5 R.sup.6 - or CR.sup.3 R.sup.4 -CR.sup.5 R.sup.6 -CR.sup.7 R.sup.8, where R.sup.3 to R.sup.8 are each hydrogen or alkyl of 1 to 17 carbon atoms, are prepared by reacting a diamine of the formula II ##STR2## with carbon dioxide, by a method in which the reaction is carried out in the gas phase in the presence of an oxide of an element of main group three or four or subgroup two to six of the Periodic Table, or a mixture of these, or in the presence of an aluminum silicate or magnesium silicate.1,3,4-trimethyl-2-imidazolidinone is used as a polar solvent at low temperatures.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: January 30, 1990
    Assignee: Basf Aktiengesellschaft
    Inventor: Willibald Schoenleben
  • Patent number: 4897309
    Abstract: The surfaces of particulate adsorbents are consolidated by a process in which the adsorbent is impregnated with a cationic aqueous polymer solution and then treated with an anionic aqueous dispersion of a polymer having a softening point of from 60.degree. to 150.degree. C. and the materials are dried together.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: January 30, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Haas, Gerold Schreyer
  • Patent number: 4897469
    Abstract: Azo reactive dyes of the aniline series for dye or printing fiber materials of the formula ##STR1## wherein K is the radical of a coupling component, and Z is a vinyl sulfonyl reactive group ortho- or para- to the azo bridge.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: January 30, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Ruediger Iden
  • Patent number: 4896603
    Abstract: The gap between the ends of a gravure printing plate (3) clamped on a plate cylinder (1) is closed by an apparatus having a gap (5) -covering plate (6) and means for filling the gap cavity with plastic and curable material, consisting of two shaped pieces (7), which are mounted on the shaft ends of the plate cylinder, and a section (8) which is firmly connected to the shaped pieces and in which two displaceable pressure bars (9) are incorporated, wherein a plurality of pressure screws (10) distributed over the length of the pressure bars are arranged above each of the pressure bars.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: January 30, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Dorow, Gerhard Bleckmann
  • Patent number: 4897478
    Abstract: Haloisatoic anhydrides are prepared by halogenating appropriately unsubstituted isatoic anhydrides with elemental chlorine or bromine in the presence of chlorosulfonic acid at from -10.degree. C. to +100.degree. C. using not less than 0.5 mole of halogen per mole of isatoic anhydride.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: January 30, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Hartmut Kanter, Heinrich Kowarsch, Burkhard Ort
  • Patent number: 4897458
    Abstract: Water-soluble copolymers having a K value of from 15 to 120 (determined according to H. Fikentscher in an aqueous solution of their sodium salt at 25.degree. C., a pH of 7 and a polymer concentration of the Na salt of 1% by weight) contain, in polymerized form,(a) not less than 80 mol % of one or more monoethylenically unsaturated C.sub.3 -C.sub.6 -monocarboxylic acids,(b) from 0.5 to 20 mol % of a comonomer which possesses two or more ethylenically unsaturated, non-conjugated double bonds and one or more --CO--OX groups and/or their salt with an alkali metal, ammonium or alkaline earth metal base, and, if required,(c) not more than 10 mol % of one or more comonomers which differ from (b) and possess two or more ethylenically unsaturated, non-conjugated double bonds, and the said copolymers are prepared by copolymerization of the monomers (a), (b) and, if required (c) in aqueous solution and are used for coating seed.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: January 30, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Peter Seelmann-Eggebert, Dieter Boeckh, Heinrich Hartmann, Wolfgang Trieselt
  • Patent number: 4895888
    Abstract: An improved fluid printing ink composition suitable for use in laminating inks is provided which comprises a resin, alcohol solvent, and a pigment. In accordance with the present invention the improvement is provided wherein the resin comprises an alcohol soluble polyamide resin having recurring units of the formula: ##STR1## wherein R.sub.1 is either hydrogen or methyl, R.sub.2 is either a carbocyclic, aralkyl or linear or branched aliphatic group, X is an alkylene group, and Z and Z' each represent an alkyl group which may be the same or different or taken together to represent an alkylene group. The fluid ink compositions of the invention have superior qualities when used as laminating inks, are less expensive than previous laminating inks, and can be used successfully on a wide variety of packaging films.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: January 23, 1990
    Assignee: BASF Corporation
    Inventor: William P. Keaveney
  • Patent number: 4895984
    Abstract: Aromatics are acylated by the Friedel-Crafts method by carrying out the acylation in the presence of metalalkyls or metalalkyl halides of metals or semimetals of main groups two to five and/or of metals of subgroups two or four of the Periodic Table.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: January 23, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Eggersdorfer, Hardo Siegel, Alfred Schuhmacher, Walter Grosch, Jochem Henkelmann
  • Patent number: 4895586
    Abstract: .alpha.-triazolyl glycol ethers of the formula I ##STR1## where R.sup.1 is alkyl, alkoxy, halogen or phenyl,R.sup.2 and R.sup.3 are each hydrogen or alkyl,R.sup.4 is alkyl or unsubstituted or substituted phenyl,Z is ##STR2## n is 0, 1, 2 or 3, R.sup.5 is hydrogen, alkyl, alkenyl or alkynyl andR.sup.6 is hydrogen, alkyl, alkenyl or unsubstituted or substituted benzyl,a process for their preparation, and their use as crop protection agents and growth regulators.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: January 23, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Ernst Buschmann, Linhard Sproesser, Bernd Zeeh, Johann Jung, Wilhelm Rademacher, Ernst-Heinrich Pommer, Eberhard Ammermann
  • Patent number: 4895711
    Abstract: Hydroxylammonium salts are prepared by catalytic reduction of nitrogen monoxide with hydrogen in dilute aqueous mineral acids at elevated temperature in the presence of suspended supported platinum catalysts obtainable by precipitating metallic platinum from aqueous solutions of platinum salts onto carriers suspended therein by means of reducing agents in the presence of one or more water-soluble substituted or unsubstituted thioureas.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: January 23, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Biffar, Werner Steigleiter, Franz-Josef Weiss
  • Patent number: 4895764
    Abstract: In magnetic recording media consisting of a nonmagnetic base and, firmly applied to this, one or more magnetic layers based on a magnetic material finely dispersed in organic binders, the binder consists of not less than 50% by weight of a high molecular weight branched polyurethane elastomer possessing OH-containing urea groups at the chain ends.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: January 23, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: August Lehner, Albert Kohl, Michael Bobrich, Hermann Roller, Peter Richter, Werner Lenz, Ludwig Kreitner, Peter Rudolf
  • Patent number: 4895961
    Abstract: Completely esterified rhodamine dyes of the formula ##STR1## where R, R.sup.2 and R.sup.4 are independently of one another methyl or ethyl, R.sup.1 and R.sup.3 are independently of one another hydrogen, methyl or ethyl, R.sup.5 and R.sup.6 are independently of one another hydrogen or methyl and A.sup..crclbar. is an anion, are prepared from compounds of the formula II ##STR2## or from the corresponding water addition products by esterification with dialkyl sulfates in solvents by using .gamma.-butyrolactone, alkylene carbonates, dialkyl carbonates, methoxypropyl acetate or dialkyl phthalates as solvent and working in the presence of an excess of a base, based on dialkyl sulfate.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: January 23, 1990
    Assignee: BASF Aktiengesellschaft
    Inventor: Karl Schmeidl