Patents Represented by Law Firm Keil & Witherspoon
  • Patent number: 4436702
    Abstract: A multi-stage reactor for hydrogenating coal slurry in a pressure vessel for pressures of up to 700 bar, preferably of up to 350 bar, with inlets for gas and coal slurry through the reactor bottom, an outlet for sludge, gases and vapors in the reactor top, and dividing trays in the pressure vessel, by means of which trays the individual reaction stages are separated from one another, wherein each dividing tray has a progressively reducing cross-section, with passage orifices, over its entire lower face, so as to prevent coal slurry caking onto the tray in the direction of flow of the reactants (gas and coal slurry).
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: March 13, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudi Schulz, Hubert Puestel, Georg Weber, Heribert Kuerten
  • Patent number: 4436548
    Abstract: .alpha.-Azolylglycols of the formula ##STR1## where R.sup.1 is alkyl, R.sup.2 is alkyl or unsubstituted or substituted phenyl or biphenyl, R.sup.3 is hydrogen, alkyl, alkenyl, alkynyl or unsubstituted or substituted benzyl and X is CH or N, their plant-tolerated salts and metal complexes, their preparation, and their use as plant growth regulators.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: March 13, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Zeeh, Norbert Goetz, Eberhard Ammermann, Johann Jung
  • Patent number: 4435427
    Abstract: A process for the preparation of .beta.-carotene micellar solutions, wherein a non-ionic emulsifier which is suitable for the preparation of micellar solutions is heated at from 160.degree. to 180.degree. C. and a total of from 20 to 30% by weight, based on the emulsifier, of .beta.-carotene is introduced in the presence of a conventional antioxidant, the hot homogeneous mixture is cooled rapidly to below 100.degree. C. by adding water, and the formulation is brought to the desired concentration of from 3 to 6% by weight by adding further water, and the .beta.-carotene micellar solutions obtained by this process. The non-ionic emulsifiers used in this process have an HLB value of from 12 to 16, and are in particular oxyethylated triglycerides of fatty acids of 12 to 18 carbon atoms containing 20-60 oxyethylene units. Parenteral admininstration of the stable .beta.-carotene micellar solutions according to the invention to cattle relieves the disturbed estrus cycle and impaired fertility caused by .beta.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: March 6, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter P. Hoppe, Joachim U. Schneider, Bernhard Schulz, Hubert Tiefenbacher
  • Patent number: 4433102
    Abstract: A thermoplastic molding material contains 50-90% by weight of a hard component A comprising one or more copolymers of styrene and/or .alpha.-methylstyrene with acrylonitrile, and 50-10% by weight of a graft copolymer B comprising 40-80% by weight of a crosslinked acrylate polymer which has a mean particle size greater than 0.8 .mu.m (d.sub.50 value of the cumulative mass distribution) and onto which 20-60% by weight of a mixture of styrene and acrylonitrile in a weight ratio of from 88:12 to 65:35 is grafted.The novel molding material is used for the production of moldings.
    Type: Grant
    Filed: July 19, 1982
    Date of Patent: February 21, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Brandstetter, Juergen Hambrecht, Rudolf Stephan
  • Patent number: 4433188
    Abstract: A process for the preparation of lower olefins from methanol or dimethyl ether by catalytic conversion at from 300.degree. to 550.degree. C. in two stages over borosilicate zeolites, wherein C.sub.2 -C.sub.4 -olefins and C.sub.1 -C.sub.4 -paraffins are removed after the first reaction stage, the C.sub.5.sup.+ hydrocarbons are passed to the second reaction stage, the aromatics are removed from the reaction product of the second stage and the remaining reaction products are recycled. The advantage of this process is an improvement in the yield of olefins.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: February 21, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Hoelderich, Wolf D. Mross, Matthias Schwarzmann
  • Patent number: 4433108
    Abstract: A process for the preparation of styrene homopolymers or copolymers by suspension polymerization of monomers which contain dissolved styrene polymers from a preceding suspension polymerization, in the presence of sparingly soluble metal phosphates as suspension stabilizers, wherein, before the polymerization is started, the monomer phase is dispersed in an aqueous phase, containing a dissolved mineral acid, preferably phosphoric acid, at from 10.degree. to 80.degree. C. for from 5 to 120 minutes, after which the sparingly soluble metal phosphate is formed in situ in the aqueous phase. The process is particularly suitable for the preparation of expandable styrene polymers, in which case a volatile blowing agent is added to the suspension before, during or after polymerization.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: February 21, 1984
    Assignee: BASF Aktiengesellschaft
    Inventor: Hans G. Keppler
  • Patent number: 4431553
    Abstract: The invention relates to a lubricant composition, the carrier material of which is a grease, a lubricating oil, a hydraulic oil or a cutting lubricant of natural and/or synthetic origin and as additive it contains 0.1 to 10 percent by weight of copper, tin and/or lead in the form of copper oxyquinolinate, tin oxyquinolinate and/or lead oxyquinolinate.The lubricant composition forms a plastic copper, tin and/or lead layer on the surfaces to be lubricated and ensures good frictional properties.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: February 14, 1984
    Assignee: Autoipari Kutato Intezet
    Inventors: Jozsef Fodor, Gyorgy Kolimar, Gizella Szilasi Muk, Margit Balog Hunyadi
  • Patent number: 4431740
    Abstract: A DNA having a base sequence coding for human proinsulin and a DNA having a base sequence coding for human pre-proinsulin have been cloned, and novel recombinant DNA transfer vectors containing said cloned DNAs have been constructed. Novel microorganisms transformed by said recombinant transfer vectors have been obtained. Certain of said transformed microorganisms have demonstrated capability to express the cloned DNA's, synthesizing a protein comprising human proinsulin and a protein-comprising human pre-proinsulin.
    Type: Grant
    Filed: June 8, 1982
    Date of Patent: February 14, 1984
    Assignee: The Regents of the University of California
    Inventors: Graeme Bell, Raymond Pictet, Howard M. Goodman, William J. Rutter
  • Patent number: 4431854
    Abstract: A process for the continuous preparation of ethylbenzene in a heterogeneous-phase reaction by alkylating benzene with ethylene in the presence of a catalyst based on a complex organic aluminum chloride compound and a co-catalyst at an elevated temperature and elevated pressure, with a residence time of from 5 to 60 minutes in one or more reaction zones, the reaction mixture, after completion of the reaction, being fed into a pressure vessel and vigorously mixed therein for from 20 to 60 minutes at from 120.degree. to 160.degree. C.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: February 14, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenther Heimlich, Gregor Tremmel, Manfred Lieb
  • Patent number: 4431794
    Abstract: Oxymethylene polymers are prepared by a continuous process, by mass polymerization of the monomers with the aid of conventional, preferably cationic, initiators, wherein the monomers as well as the resulting polymer are present substantially in molten form during the polymerization.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: February 14, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Sadlowski, Manfred Walter, Klaus Hinselmann
  • Patent number: 4431812
    Abstract: Pyridinecarbinols of the formula ##STR1## where R.sup.1 is hydrogen or alkyl, R.sup.2 is alkyl or alkenyl, and R.sup.3, R.sup.4 and R.sup.5 are hydrogen, chlorine, bromine, fluorine or alkyl, plant-physiologically tolerated addition salts of these compounds with acids, and fungicides containing these compounds.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: February 14, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Ernst Buschmann, Eberhard Ammermann, Ernst-Heinrich Pommer
  • Patent number: 4430417
    Abstract: Photopolymerizable mixtures of (a) one or more block copolymers, (b) one or more photopolymerizable, ethylenically unsaturated, low molecular weight compounds and (c) a photopolymerization initiator, with or without (d) other additives, contain as component (a) block copolymers which are composed solely of elastomeric polymer blocks, and contain two or more elastomeric polymer blocks having a glass transition temperature of from -20.degree. C. to +15.degree. C., linked by one or more elastomeric polymer blocks having a glass transition temperature of below -20.degree. C.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: February 7, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Heinz, Peter Richter, Wolfgang F. Mueller
  • Patent number: 4430362
    Abstract: Magnetic recording media are produced by a method wherein a fluid dispersion of finely divided magnetically anisotropic material in a film-forming binder mixture containing a polyurethane (obtained from a polyester which possesses free hydroxyl groups, and a di- or polyisocyanate) is applied to a non-magnetic base and the magnetic layer is then hardened.
    Type: Grant
    Filed: December 16, 1982
    Date of Patent: February 7, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Milena Melzer, Norbert Schneider, Helmut Kopke, Klaus Schoettle, Eberhard Koester, Werner Balz, Werner Grau
  • Patent number: 4430678
    Abstract: A drive apparatus for a recording disk, particularly a flexible magnetic disk in an envelope, comprising a rotatable clamping member which can be caused to engage one another, after the recording disk has been introduced therebetween, to clamp the disk for rotation thereof, in position between clamping surfaces of the two members. The clamping member is of axially expandable design and a resilient element is interposed between the face of the clamping member and the bottom of the recessed member so that the clamping member, prior to completion of its stroke and prior to its radial expansion, is engaged by the spring element. In this manner the spring element centers the position of the clamping member with respect to the recessed member and thereby insures clamping of the disk in its centered position.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: February 7, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Hack, Roland Brotzler, Klaus Schulze-Berge, Rudolf Angermann
  • Patent number: 4430336
    Abstract: N-Substituted 2-methylnaphthylamides of the general formula ##STR1## where R.sup.1 is ##STR2## R.sup.3 being hydrogen or alkoxy, or R.sup.1 is ##STR3## R.sup.4 and R.sup.5 being unsubstituted or substituted alkyl, or R.sup.4 and R.sup.5 together forming a heterocyclic ring which contains two oxygen atoms and is unsubstituted or substituted by alkyl or aryl,R.sup.2 is alkyl which is unsubstituted or substituted by halogen, alkoxy, imidazolyl, pyrazolyl or oxo (.dbd.O), or is alkenyl, alkynyl, cycloalkenyl or alkoxy, or substituted or unsubstituted phenyl, or substituted or unsubstituted hetaryl andX is hydrogen, methyl or halogen, fungicides containing these compounds, and processes for the preparation of the compounds.
    Type: Grant
    Filed: November 18, 1980
    Date of Patent: February 7, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Costin Rentzea, Bernd Zeeh, Ernst-Heinrich Pommer
  • Patent number: 4429155
    Abstract: Aromatic amines (anilines) are obtained directly or via the corresponding cycloaliphatic amines by an aminating/hydrogenating reaction of phenols with ammonia and hydrogen over a supported palladium catalyst which also contains elements from group 1b, 2b or 7b of the periodic table as well as iron, cobalt or nickel, as such or in the form of their compounds, and, preferably, an inorganic base, said catalysts also having dehydrogenating properties.
    Type: Grant
    Filed: December 1, 1981
    Date of Patent: January 31, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Goetz, Peter Jacobs, Leopold Hupfer, Herbert Toussaint, Wolfgang Reiss
  • Patent number: 4429130
    Abstract: Quinol-4-ylmethane derivatives of the formula I ##STR1## where R.sup.1 is hydrogen or chlorine, R.sup.2 is trifluoromethyl or chlorine, R.sup.3 is a nitrogen-containing, cyclic-unsaturated or acyclic-saturated radical of not more than 6 carbon atoms, R.sup.4 is hydrogen or an anion-stabilizing group and R.sup.5 is hydrogen, an anion center or an acetal radical of not more than 8 carbon atoms, their preparation and their use for the preparation of quinol-4-ylmethane derivatives.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: January 31, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Eckhard Hickmann, Heinz-Guenter Oeser
  • Patent number: 4429072
    Abstract: A process for the preparation of aqueous thermosetting electrical insulating varnishes, wherein polyester-imide precondensates are prepared by condensing aromatic tricarboxylic acid monoanhydrides, diamines, diols, triols containing an isocyanurate ring, and cyclic trimerization products of diisocyanates, whose free isocyanate groups are blocked, with or without aromatic dicarboxylic acids or their esterifiable derivatives, and are reacted, at from 50.degree. to 200.degree. C., with or without addition of from 1 to 10% by weight, based on polyester-imide, of a polar organic solvent, with ammonia or an organic amine, and then diluted with fully demineralized water, with or without addition of a water-soluble curing catalyst. The novel electrical insulating varnishes are used as wire enamels or impregnating varnishes.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: January 31, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Reiter, Helmut Lehmann
  • Patent number: 4428944
    Abstract: Trifluoromethoxyphenyl-(di)-thiophosphoric acid esters of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and X have the meanings given in the description, and their use in pest control.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: January 31, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Seufert, Karl Kiehs, Gerd Husslein, Juergen Varwig, Gerhard Hamprecht, Heinrich Adolphi
  • Patent number: 4428766
    Abstract: 2H-1,2,4,6-Thiatriazine-1,1-dioxides of the formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3 and Y have the meanings given in the description, are used for controlling undesirable plant growth.
    Type: Grant
    Filed: August 24, 1982
    Date of Patent: January 31, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hamprecht, Adolf Parg, Bruno Wuerzer