Patents Represented by Law Firm Keil, Thompson & Shurtleff
  • Patent number: 4154755
    Abstract: N',N'-disubstituted N-(2-cyanophenyl)-formamidines are manufactured by reacting isatoic anhydrides with ammonia and then with a mixture of acid halides and formamides.The N-(2-cyanophenyl)-formamidines which may be manufactured by the process of the invention are valuable starting materials for the manufacture of dyes, crop protection agents and drugs.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: May 15, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Schneider, Horst Scheuermann
  • Patent number: 4139641
    Abstract: Agents for preserving and ensiling animal feedstuffs and which contain one or several furan or thiophene derivatives, and the use thereof. These furan or thiophene derivatives have the general formula ##STR1## WHERE X denotes oxygen or sulfur, R denotes the radicals --CHO, --CN or --COOR.sup.3, or the vinylogous radicals --CH.dbd.CH--CHO, --CH.dbd.CH--C.tbd.N or --CH.dbd.CH--COOR.sup.3, R.sup.3 denoting hydrogen, a cation equivalent or alkyl of from 1 to 4 carbon atoms, and n denotes one of the integers 0, 1, 2 and 3.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: February 13, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Zeeh, Johann Jung, Eberhard Ammermann
  • Patent number: 4138591
    Abstract: Alkylphenols are manufactured by reacting phenols with olefins, stripping the reaction mixture by means of an inert gas, cooling the phenol-containing gas mixture and removing the unconverted phenol. The products are starting materials for the manufacture of dyes, pesticides, pharmaceuticals, emsulfiers, dispersing agents, stabilizers, antioxidants, plasticizers, corrosion inhibitors, disinfectants, seed dressings, stabilizers against ageing, crop protection agents and scents.
    Type: Grant
    Filed: October 19, 1977
    Date of Patent: February 6, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl G. Baur, Hans Hellbach, Rolf Platz, Kurt Taglieber
  • Patent number: 4138560
    Abstract: Melamine synthesis waste gases are first treated for the removal of melamine by condensation. The waste gases are then treated with urea-containing melts which are cooled indirectly. At least parts of said indirect cooling takes place together with the treatment of the reaction waste gases with the urea-containing melts in a single zone.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: February 6, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Engelbert Hillenbrand, Hermann D. Fromm, Alfred Widmann
  • Patent number: 4137261
    Abstract: N-Vinyl-N-alkyl-carbamic acid chlorides are manufactured by reacting crude Schiff bases, which have advantageously been manufactured in the presence of pentane, with phosgene and tertiary amines, treating the reaction mixture with water and then isolating the end product, after having separated off the aqueous phase containing the amine salt. The products are starting materials for the manufacture of surface-coating intermediates, plastics, paints and crop protection agents.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: January 30, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Koenig, Christian Reitel, Dietrich Mangold
  • Patent number: 4137213
    Abstract: Pigment formulations and their use.The formulations contain pigments, organic solvents and from 10 to 80% by weight of a wetting agent consisting of a non-ionic organic compound which has a viscosity of from 500 to 10,000 mPa.s and has been produced by reacting an alkylated amide/formaldehyde reaction product and an epoxy resin, which may or may not be modified, in a weight ratio of from 9:1 to 1:9. They are used as additives in surface-coating binders, especially in cationic electrocoating finishes.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: January 30, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz E. Kempter, Erich Gulbins, Armin Haag, Ruprecht Kroker
  • Patent number: 4137212
    Abstract: A flameproofed nylon molding composition which can be processed by thermoplastic methods and which contains, as the flameproofing agent, from 5 to 30% by weight of brominated styrene oligomers and a synergistic metal oxide. The compositions may be used for the manufacture of injection moldings for the electrical industry.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: January 30, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Theysohn, Klaus Penzien, Wolfgang Seydl, Rolf Wurmb, Horst Reimann, Claus Cordes, Hans-Josef Sterzel
  • Patent number: 4136100
    Abstract: Dyes of the formula ##STR1## where Y is alkyl of 3 to 18 carbon atoms or phenyl which is unsubstituted or substituted by chlorine, bromine, alkoxy of 1 to 4 carbon atoms, alkoxycarbonyl (where alkoxy is of 1 to 4 carbon atoms), phenoxy, benzoylamino, trifluoromethyl or alkylcarbonyl (where alkyl is of 1 to 6 carbon atoms), X is hydrogen or ##STR2## where R is alkyl of 1 to 17 carbon atoms, phenylamino, phenyl, alkoxycarbonyl-alkyl (where alkoxy is of 1 to 8 carbon atoms and alkyl of 2 to 4 carbon atoms), alkoxy of 1 to 10 carbon atoms or alkoxyalkyl of a total of 3 to 12 carbon atoms, A is chlorine, bromine, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms, B is hydrogen or nitro and n is 0, 1, 2 or 3. On cellulose and cellulose-containing textiles, the dyes, used in the presence of swelling agents, give bluish violet to greenish blue dyeings having very good fastness properties.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: January 23, 1979
    Assignee: BASF Aktiengesellschaft
    Inventor: Gerhard Epple
  • Patent number: 4135992
    Abstract: An aqueous cyanide-free alkaline zinc bath for electroplating metallic surfaces with mirror-bright zinc coatings, which bath contains zinc ions, alkali metal hydroxides and, as the brightener, a polyalkylenepolyamine which is at least partially alkylated, with alkyl of 1 to 3 carbon atoms, at the basic nitrogens.
    Type: Grant
    Filed: November 16, 1977
    Date of Patent: January 23, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Fikentscher, Klaus Glaser, Guenther Gotsmann, Werner Streit
  • Patent number: 4135909
    Abstract: New and valuable salts of phosphonic acids whose cationic components are ammonium radicals, agents for influencing the growth of plants with these salts, and a process for their manufacture.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: January 23, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Johann Jung, Karl Kiehs, Bernd Zeeh, Hans Theobald
  • Patent number: 4136124
    Abstract: Dialkyl-ketals are manufactured by reacting ketones with alkanols in the presence of an acid condensing agent and of an at least equivalent amount, based on the ketone, of anhydrous calcium sulfate.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: January 23, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Zinke-Allmang, Walter Scheidmeir
  • Patent number: 4134813
    Abstract: A photopolymerizable composition which contains one or more olefinically unsaturated compounds and from 0.2 to 20% by weight (based on the unsaturated compound(s)) of a photoinitiator, with or without conventional additives, the photoinitiator being a mixture of one or more aromatic carbonyl compounds of the general formula (A) ##STR1## where Ar is an ortho-arylene radical which may or may not be substituted by one or more radicals R.sup.1 to R.sup.4, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and each is H, alkyl or 1 to 5 carbon atoms, phenyl, halogen, alkoxy of 1 to 5 carbon atoms, alkaryl of 7 to 11 carbon atoms, aralkyl of 7 to 11 carbon atoms or --CO.sub.2 R.sup.9, where R.sup.9 is alkyl of 1 to 5 carbon atoms, and n is 0 or 1, and an amine, with or without an aromatic carbonyl compound which differs from (A).This photopolymerizable composition is particularly suitable for the manufacture of photopolymer printing plates and UV-curing printing inks.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: January 16, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Kuesters, Rolf Osterloh, Manfred Jacobi
  • Patent number: 4135043
    Abstract: Polymers in powder form are manufactured by polymerizing water-soluble ethylenically unsaturated monomers, which form hydrophilic polymers, in a powder bed of polymers of water-soluble ethylenically unsaturated compounds in the presence of polymerization initiators and water as an auxiliary liquid, the water being entirely or partially removed from the polymerization zone by evaporation during the polymerization.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: January 16, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Kast, Joachim Stedefeder, Axel Sanner, Hans-Uwe Schenck, Richard Thoma, Hermann Fischer
  • Patent number: 4134889
    Abstract: Manufacture of glycinonitriles by reacting amines with carbonyl compounds and hydrogen cyanide under specific reaction conditions in respect of the temperature, reaction time and hydrogen cyanide concentration.The glycinonitriles obtainable by the process of the invention are antioxidants and valuable starting materials for the manufacture of dyes, fungicides, bactericides, textile auxiliaries and inhibitors for use in antifreezes.
    Type: Grant
    Filed: May 2, 1977
    Date of Patent: January 16, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Harry Distler, Erwin Hartert, Helmut Schlecht
  • Patent number: 4134915
    Abstract: Formamide is manufactured continuously from methyl formate and gaseous ammonia. The reaction is carried out in a reactor at from 30 to 90.degree. C, from 5 to 20% by volume of the reactor output is drawn off continuously and fed to the formamide working-up stage, and the remainder of the reactor output is cooled, in an external circuit maintained by means of a pump, to from 25 to 60.degree. C and is mixed with the amount of fresh methyl formate required for steady-state operation, after which the appropriate amount of gaseous ammonia is introduced into the stream of liquid through a jet, by the sucking-jet principle, and the stream of liquid is recycled to the reactor.
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: January 16, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Hohenschutz, Max Strohmeyer, Manfred Herr, Hans Kiefer
  • Patent number: 4134932
    Abstract: Surface-coating binders for cathodic electrocoating which comprise a protonized heat-curable reaction product (A), substantially free from epoxide groups, of(a) one or more Mannich bases, prepared from(a.sub.1) one or more polyhydric condensed phenols which may or may not contain ether groups.(a.sub.2) one or more secondary amines which contain one or more hydroxyalkyl groups, with or without one or more secondary amines which do not contain such groups, and(a.sub.3) formaldehyde or a formaldehyde donor, with(b) one or more epoxy resins,Which binder also contains from 1 to 40% by weight, based on the total of (A) + (B), of a water-insoluble non-ionic resin (B), free from epoxide groups and containing urethane groups, which resin has been obtained by reacting a partially blocked diisocyanate or higher polyisocyanate with a reaction product of a polyepoxide and one or more low molecular weight compounds containing SH and/or OH groups.
    Type: Grant
    Filed: March 9, 1978
    Date of Patent: January 16, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz E. Kempter, Heinrich Hartmann, Erich Gulbins
  • Patent number: 4133911
    Abstract: The invention relates to an improved process for the manufacture of magnetic discs carrying very thin magnetic layers, by applying a fluid dispersion of magnetic materials in a binder mixture to rigid base discs by the spin-coating process. Above the side of the base disc which is to be provided with the magnetic layer, there are arranged means which produce an aerodynamic boundary layer above the discs during rotation of the latter. This avoids the formation of surface irregularities and of coating streaks during production of the layer by spin-coating.
    Type: Grant
    Filed: December 16, 1975
    Date of Patent: January 9, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Eberhard Koester, Paul Deigner, Roland Falk, Karl Uhl, Dieter Schaefer, Dieter Mayer, Herbert Motz, Peter Felleisen
  • Patent number: 4133946
    Abstract: New polymers which contain 1,6,6-trimethylnorpinanyl-2-methyl or 3-pinanylmethyl groups, i.e. macromolecular compounds in which the side chains contain optically active groups, so that the polymers may also be optically active. The new polymers may be used for the production of moldings, coatings and adhesives and as optical modifiers for films.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: January 9, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Hardo Siegel, Herbert Naarmann
  • Patent number: 4133836
    Abstract: A process for the manufacture of acetals by reacting aliphatic aldehydes with aliphatic alcohols, especially olefinically unsaturated aldehydes and allyl alcohols, in the presence of a distillable acid, especially nitric acid, using a rectifying column as the reaction vessel. The products may be used as starting materials for plastics, active substances, scents and vitamins.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: January 9, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Axel Nissen, Gerd Kaibel
  • Patent number: 4133806
    Abstract: Azo dyes represented by the formula ##STR1## in which R.sup.2 represents alkyl of 1 to 4 carbon atoms or may also represent ethyl or propyl substituted by hydroxy or alkoxy of 1 to 4 carbon atoms, and R.sup.3 is C.sub.4 H.sub.9 --, CH.sub.3 OCH.sub.2 CH.sub.2 --, CH.sub.3 (CH.sub.2).sub.4 --, CH.sub.3 (CH.sub.2).sub.5 --, CH.sub.3 (CH.sub.2).sub.7 --, ##STR2## or cycloalkyl of 5 to 8 carbon atoms. These dyes have excellent fastness properties and are especially useful for dyeing cellulose ester and polyester fibrous materials.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: January 9, 1979
    Assignee: BASF Aktiengesellschaft
    Inventor: Gerhard Gnad