Patents Assigned to BASF
  • Paint binders of Mannich bases and epoxy resins
    Patent number: 4001155
    Abstract: Paint binders substantially free from epoxide groups and manufactured by reactingA. Mannich bases ofA.sub.1. condensed phenols,A.sub.2. a secondary amine bearing at least 1 hydroxyalkyl group andA.sub.3. formaldehyde withB. at least one epoxy resin.These binders are suitable, in the acid-protonized form, for use in cathodic immersion electrocoating of electrically conductive surfaces.
    Type: Grant
    Filed: November 11, 1974
    Date of Patent: January 4, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Firtz Erdmann Kempter, Guenther Sabelus, Herbert Spoor
  • Manufacture of basic dyes by catalytic oxidation
    Patent number: 4000135
    Abstract: A catalytic process for the oxidation of compounds of the formula ##STR1## where Z to Z.sup.6 are hydrogen or substituents, in which iron tetraazaannulenes are used as catalysts. The process gives good yields when using oxygen for oxidation.
    Type: Grant
    Filed: July 8, 1974
    Date of Patent: December 28, 1976
    Assignee: BASF Aktiengesellschaft
    Inventor: Hellmut Kast
  • Method and apparatus for purifying aqueous streams contaminated with organic materials
    Patent number: 4000065
    Abstract: Aqueous streams contaminated with minor amounts of organic materials are separated into an aqueous fraction which is concentrated with respect to the organic contaminants and a water fraction relatively free of the organic contaminants by a method which includes a unique combination of reverse osmosis (RO) and ultrafiltration (UF). The organic contaminants include substances having molecular weights of less than 10,000 which are soluble in the aqueous stream initially but have limited solubility ranges and are precipitated therefrom upon concentration. The contaminated aqueous stream is circulated from the high pressure compartment of a RO unit to the high pressure compartment of an UF unit, then to the low pressure compartment of the UF unit, and then back to the high pressure compartment of the RO unit.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: December 28, 1976
    Assignee: BASF Wyandotte Corporation
    Inventors: Kamal K. Ladha, William M. Herring, Joseph F. Louvar
  • Defoaming compositions based on lithium salts
    Patent number: 4000082
    Abstract: Aqueous cleaning compositions incorporating lithium salts to inhibit foaming.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: December 28, 1976
    Assignee: BASF Wyandotte Corporation
    Inventors: Joseph V. Otrhalek, Robert E. Gansser
  • Production of cationic condensation products
    Patent number: 4000184
    Abstract: Condensation products are prepared from carboxamides, formaldehyde, dicyandiamide and ammonium and/or amine salts in a single process step. After the end of the exothermic reaction the reaction mixture is heated for from 30 minutes to 5 hours at a temperature of from 70.degree. to 100.degree. C.
    Type: Grant
    Filed: January 8, 1975
    Date of Patent: December 28, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Alfred Kerbeck, Eberhard Luecke, Erich Renauer, Guenter Reuss
  • Anhydro-2-mercapto-1,3,4-thiadiazolium hydroxides
    Patent number: 4000147
    Abstract: New anhydro-2-mercapto-1,3,4-thiadiazolium hydroxides substituted in the 4- and 5-position, their manufacture and their use as medicaments.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: December 28, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: August Amann, Horst Koenig, Peter Thieme, Hubert Giertz, Rolf Kretzschmar
  • Azo dye with a 3-cyano- or 3-carbamoyl-4-methyl-2,6-diamino-pyridine coupling component
    Patent number: 3998802
    Abstract: Azo dyes of the formula ##STR1## wherein D is the diazo component, the R substituents represent hydrogen or various organic radicals and X is cyano or carbamoyl. The R members are hydrogen, an alkyl or other aliphatic group as well as other selected groups including heterocyclic rings formed by R + R.sup.1 and R.sup.2 + R.sup.3 with the nitrogen atom. The dyes are eminently suitable for dyeing polyamides, cellulose esters, acrylonitrile polymers and particularly polyesters brilliant yellow to blue shades of excellent fastness properties to dry-heat pleating and setting and also to light.
    Type: Grant
    Filed: January 24, 1974
    Date of Patent: December 21, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Johannes Dehnert, Gunther Lamm
  • Manufacture of graft copolymers
    Patent number: 3998912
    Abstract: Unsaturated carboxylic acids are grafted onto copolymers of ethylene and carboxylates. Carboxylic acid containing initiator is caused to diffuse into shaped elements of the copolymers, polymerization then being carried to completion by heating. The products exhibit no fish eyes and are highly suitable for sheet manufacture.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: December 21, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Zeitler, Heinz Mueller-Tamm, Friedrich Urban
  • Manufacture of 1-methyl-3-(monohalogeno)-phenylindans and dihalogeno-1-methyl-3-phenylindans
    Patent number: 3998894
    Abstract: Manufacture of 1-alkyl-3-(monohalogeno)-phenylindans and dihalogeno-1-methyl-3-phenylindans by reaction of halogenostyrene and styrene in the presence of phosphoric acid of a certain concentration, or by reaction of halogenostyrenes in the presence of phosphoric acid of a certain concentration and of organic compounds irradiated with light of 2,000 to 8,000 A and capable of absorbing the said light, and the new dihalogeno-1-methyl-3-phenylindans and 1-methyl-3-(monohalogeno)-phenylindans. The products are starting materials for the manufacture of dyes and pesticides.
    Type: Grant
    Filed: November 15, 1973
    Date of Patent: December 21, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Karl Gerhard Baur, Manfred Patsch, Rolf Platz, Hans-Georg Schecker, Martin Fischer
  • Urethane modified carbodimide-isocyanurate foams from organic polyisocyanates and oxyalkylated mannich polyols
    Patent number: 3998766
    Abstract: Rigid cellular foam compositions characterized by carbodiimide, isocyanurate and urethane linkages are prepared by the reaction of an organic polyisocyanate with certain oxyalkylated Mannich polyols employing an NCO/OH equivalent ratio of from about 2:1 to 10:1. The use of the oxyalkylated Mannich polyols in the amounts stated eliminates the need for carbodiimide and isocyanurate promoting catalysts.
    Type: Grant
    Filed: December 26, 1974
    Date of Patent: December 21, 1976
    Assignee: BASF Wyandotte Corporation
    Inventors: Peter T. Kan, Moses Cenker, John T. Patton, Jr.
  • Manufacture of lavandulol and its esters
    Patent number: 3997577
    Abstract: A process for the manufacture of lavandulol and its esters, starting from the new compound 3,5,5-trimethyl-1,6-heptadien-3-ol, which is converted by conventional methods to 3,5,5-trimethyl-hepta-2,6-dien-1-ol or its esters, which are rearranged to lavandulol or lavandulyl esters by heating at from 150.degree. to 250.degree. C. Using the new process, the desirable product lavandulol, and its esters, which are also of great interest as scents, and even previously unknown lavandulyl esters, can be manufactured simply, in goods yields and in excellent purity, from easily obtainable starting compounds. Both the new starting compound 3,5,5-trimethyl-hepta-1,6-dien-3-ol and the new 3,5,5-trimethyl-hepta-2,6-dien-1-yl esters, obtained as intermediates, are scents and can be employed in the perfumery industry.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: December 14, 1976
    Assignee: BASF Aktiengesellschaft
    Inventor: Karl von Fraunberg
  • 2-Chloroethanephosphonic acid derivatives
    Patent number: 3997595
    Abstract: New and valuable 2-chloroethane-phosphonic acid derivatives having a strong biological action, agents for controlling the growth of plants containing these compounds as active ingredients, a process for influencing the growth of plants with these compounds, and a process for their preparation.
    Type: Grant
    Filed: February 12, 1975
    Date of Patent: December 14, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Johann Jung, Karl Kiehs, Hans Theobald
  • Lactones of the benzazaxanthene series and dye-forming components for duplication processes
    Patent number: 3997541
    Abstract: New lactones of the benzazaxanthene series, their production from benzoylbenzoic acids and homophthalimides and their use as dye-forming components in the red range for pressure-sensitive recording materials.
    Type: Grant
    Filed: July 26, 1974
    Date of Patent: December 14, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Ernst Schefczik, Hellmut Kast
  • 2,1,3-Benzothiadiazin-(4)-one-2,2-dioxides
    Patent number: 3997531
    Abstract: New and valuable 2,1,3-benzothiadiazin-(4)-one-2,2-dioxides having a good herbicidal action and a process for controlling the growth of unwanted plants with these compounds.
    Type: Grant
    Filed: September 16, 1974
    Date of Patent: December 14, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Adolf Fischer, Karl-Heinz Koenig, Gerhard Hamprecht
  • Frequency modulating and demodulating method and apparatus
    Patent number: 3997915
    Abstract: An apparatus and method for the frequency modulation and demodulation of a carrier signal by a modulating frequency signal, whereby essentially the same apparatus is used for both functions. During demodulation, the modulating device is switched into a closed loop having a relatively narrow bandwidth, thereby permitting the carrier generated by the modulator to be locked in phase with the signal to be demodulated. During modulation, the loop is opened up and the modulator is used in a normal fashion.
    Type: Grant
    Filed: April 24, 1975
    Date of Patent: December 14, 1976
    Assignee: BASF Aktiengesellschaft
    Inventor: Eugene A. Cooper
  • Process and apparatus for filling foldable or rigid packages
    Patent number: 3995408
    Abstract: A process and associated apparatus for filling packages with free-flowing solids through spouts, in which some of the material is initially fed to the package with the latter in its gravity position, the position of the package is changed once or a number of times with shaking of the entire package, and finally the remainder of the material is filled into the package with the latter in its gravity position.
    Type: Grant
    Filed: September 30, 1975
    Date of Patent: December 7, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Guenther, Gunter Thielen, Hans Hackner, Friedrich Ferdinand Hauptstein
  • Magnetic recording media
    Patent number: 3996407
    Abstract: Magnetic recording media comprising a non-magnetizable flexible base and a firmly adhering magnetic coating based on a dispersion, containing a silane, of a magnetic pigment in a polymeric binder, and a process for their manufacture. The silane is an aminoalkylsilane R.sub.n Si(OR').sub.4-n, wherein n is 1, 2 or 3, R' is alkyl of 1 to 8 carbon atoms and R is aminoalkyl of the formula with one or more primary and/or secondary amino groups and from 3 to 11 carbon atoms. Magnetic recording media comprising a magnetic coating containing such a silane exhibit better abrasion resistance and better electromagnetic properties than comparable coatings.
    Type: Grant
    Filed: December 18, 1974
    Date of Patent: December 7, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Egon Von Gross, Heinz Stritzinger, Job-Werner Hartmann, Manfred Steuerwald, Ursula Klein, Dieter Schaefer
  • Manufacture of easy-care finishing agents for cellulosic textiles
    Patent number: 3996178
    Abstract: A process for the manufacture of stable and at the same time highly reactive, liquid easy-care finishing agents for textiles containing, or consisting of, cellulose, the agents being manufactured from urea, formaldehyde, glyoxal and an aliphatic primary amine.
    Type: Grant
    Filed: November 4, 1975
    Date of Patent: December 7, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Kurt Fischer, Anna Steimmig, Heinz Bille, Harro Petersen, Herbert Tulo
  • Crystalline beryllo-alumino-silicates and process for their manufacture
    Patent number: 3996337
    Abstract: Alkali metal beryllo-alumino-silicates of the mordenite type form, under hydrothermal conditions (100.degree.-300.degree. C in a Carius tube), from aqueous mixtures containing the structural components SiO.sub.2, Al.sub.2 O.sub.3 and BeO and alkali metal hydroxides. In beryllium-containing mordenites, ratios of SiO.sub.2 to Al.sub.2 O.sub.3 of from 10:1 to 120:1 may be achieved, whereas values of only up to 10:1 are known in the pure alumino-silicates of this type. The alkali metal beryllo-alumino-silicates are accessible to ion exchange in the same way as the beryllium-free representatives. The so-called NH.sub.4 - and H-forms obtaineable by ion exchange may be used for the synthesis of highly active sorption compositions or catalysts after calcination.
    Type: Grant
    Filed: May 14, 1974
    Date of Patent: December 7, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Stabenow, Laszlo Marosi, Matthias Schwarzmann
  • Alkaline peroxide bleach liquor
    Patent number: 3996151
    Abstract: Concentrated aqueous/alkaline peroxide bleach liquor containing (a) silicate and (b) peroxide stabilizers having a content of alkaline earth metal are stabilized against precipitation of alkaline earth silicates.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: December 7, 1976
    Assignee: BASF Aktiengesellschaft
    Inventor: Uwe Kirner