Patents Assigned to BASF
  • NN' Para methoxy benzyl perylene-3,4,9,10-tetracarboxylic acid diimide
    Patent number: 4450273
    Abstract: A perylene-3,4,9,10-tetracarboxylic acid diimide of the formula ##STR1## gives black colorations with excellent lightfastness and weathering fastness, in polyethylene, PVC, surface coatings, inks and aqueous dye formulations.
    Type: Grant
    Filed: January 6, 1982
    Date of Patent: May 22, 1984
    Assignee: BASF Aktiengesellschaft
    Inventor: Fritz Graser
  • Anionic biocide emulsions in aqueous solutions of strongly ionizable salts
    Patent number: 4450001
    Abstract: Highly stable emulsions of biocides in liquid fertilizer compositions are disclosed which offer unexpected stability thus permitting application of both biocides and liquid fertilizers simultaneously. The improved emulsion stability can be obtained by utilizing higher polyoxyalkylene glycol ethoxylate esters or combinations thereof with certain anionic emulsifiers. Stable aqueous emulsions are also disclosed.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: May 22, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: Thomas M. Kaneko, Daniel R. Dutton, Bongsub Kim
  • Corrosion inhibited alcohol compositions
    Patent number: 4450088
    Abstract: Antifreeze or anticorrosive additive compositions and a process for inhibiting the corrosion of aluminum in contact with aqueous liquids are disclosed. The antifreeze compositions comprise a combination of an amino acid, an alkali metal phosphate, a heterocyclic nitrogen compound, as defined, and a conventional corrosion inhibitor in effective corrosion inhibiting amounts. The aqueous liquid can be an alcohol such as ethylene glycol.
    Type: Grant
    Filed: May 19, 1983
    Date of Patent: May 22, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: Joe C. Wilson, Stanley T. Hirozawa
  • Grinding or dispersing agents for pigments
    Patent number: 4450013
    Abstract: The subject invention relates to compositions which are used as auxiliaries for pigment grinding and as dispersing agents for pigments. The compositions are essentially copolymers based upon acrylic acid, methacrylic acid, and sulfonic acid group containing monomers such as 2-acrylamido-2-methylpropanesulfonic acid.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: May 22, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Hirsch, Gregor Ley
  • Injection mold with demolding device
    Patent number: 4449914
    Abstract: An injection mold comprising a fixed and a movable mold half and a demolding device for the moldings, which essentially consists of grippers and a kinematic chain, by means of which the opening movement of the mold half is transferable to the holders of the grippers. By this means, the opening movement of the mold half can cause the grippers to move towards the moldings to be taken out of the mold half.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: May 22, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Kurt Schmidts, Walter Schuett, Edmond Zeysolff, Wilhelm Saumer
  • Preparation of water-soluble, nitrogen-containing condensates and their use in papermaking
    Patent number: 4450045
    Abstract: Water-soluble, nitrogen-containing condensates are prepared by reacting a cross-linking agent, obtained by(a) condensing 1 mole of a dicarboxylic acid of 4 to 10 carbon atoms with from 1 to 2 moles of a polyalkylenepolyamine, having 3-10 basic nitrogen atoms in the molecule, to give a polyamidoamine and(b) reacting the polyamidoamine with epichlorohydrin and/or dichlorohydrin in aqueous solution at a pH of from 4.5 to 8.5 and at below 100.degree. C., from 1 to 130 parts by weight of epichlorohydrin and/or dichlorohydrin being employed per 100 parts by weight of the polyamidoamine from (a),with ammonia, a primary amine, a polyamine containing 2 to 4 N atoms, a polyether-amine or a polyamidoamine in aqueous solution at below 100.degree. C.The condensates are used as retention aids, flocculants and drainage aids in papermaking.
    Type: Grant
    Filed: September 10, 1982
    Date of Patent: May 22, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Otto Hertel, Friedrich Linhart, Emil Scharf
  • Preparation of 1-substituted imidazoles
    Patent number: 4450277
    Abstract: A process for the preparation of 1-substituted imidazoles by reacting an .alpha.-dicarbonyl compound with ammonia, an aldehyde and a primary amine in an aqueous medium, in a single stage, at 20.degree.-150.degree. C.
    Type: Grant
    Filed: September 25, 1980
    Date of Patent: May 22, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz Graf, Leopold Hupfer
  • High foaming liquid shampoo composition
    Patent number: 4450091
    Abstract: It has been found in accordance with the instant invention that the viscosity of a shampoo formulation based on a blend of amphoteric and nonionic surfactants could be considerably enhanced by replacement of a part of the amphoteric surfactant with an anionic surfactant. The shampoo compositions also contain as essential ingredients both an alkanolamide and a polyoxyalkylene glycol fatty ester. These shampoo products are characterized by increased viscosity as well as mildness towards the eyes and superior foam compared to some leading commercial products.The nonionic surfactant is a cogeneric mixture of conjugated polyoxybutylene-polyoxyethylene compounds containing in their structure oxybutylene groups, oxyethylene groups and an organic radical derived from an organic compound containing a pluarlity of reactive hydrogen atoms.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: May 22, 1984
    Assignee: BASF Wyandotte Corporation
    Inventor: Irving R. Schmolka
  • Process for the preparation of noncellular polyurethane elastomers based on 4,4-diisocyanato-1,2-diphenylethane
    Patent number: 4448946
    Abstract: The invention relates to a process for the manufacture of noncellular polyurethane elastomers by reacting 4,4'-diisocyanato-1,2-diphenylethane or diisocyanato-1,2-diphenylethane isomer mixtures with a 4,4'-diisocyanato-1,2-diphenylethane content in excess of 95 percent by weight, higher molecular weight polyhydroxyl compounds and low molecular weight chain extenders optionally in the presence of auxiliaries and additives.The polyurethane elastomers produced in accordance with this invention excel by a greater hardness and improved mechanical properties compared with polyurethane elastomers based on 4,4'-diphenylmethane diisocyanate with otherwise comparable composition.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: May 15, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Stutz, Karl H. Illers, Herbert Haberkorn, Walter Heckmann
  • Spray coating process, and an arrangement for carrying out the same
    Patent number: 4448812
    Abstract: The invention proposes a spray coating process in which through the use of inert gases the recovery of materials, safety at work and environmental protection conditions are improved, by drawing off, freeing from the solvents and returning to circulation the inert gases gaseously enriched (sic).
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: May 15, 1984
    Assignee: BASF Farben & Fasern A.G.
    Inventor: Arno Lauke
  • Process and apparatus for monitoring the formation and propagation of cracks in machine parts and components
    Patent number: 4448080
    Abstract: For the purpose of monitoring the formation and propagation of cracks in machine parts and components, especially in the rotating shafts of prime movers and mechanical equipment, at least one hole is drilled in the uncracked section of the component, this drilled hole intersecting the plane of the crack which is to be expected and being filled with a gas or a liquid, the gas or liquid being adjusted to a pressure above the ambient pressure, and the drilled hole being provided with a closure with respect to the environment and being connected, via a line, to an instrument for indicating a fall in the pressure of the medium present in the drilled hole.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: May 15, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Dressel, Johannes Greven, Arnulf Jeck, Rudolf Magin, Guenther Nick, Paul Schaffarczyk, Guenther Weiss
  • Defoaming detergent additives containing bleached tallow acid phosphates
    Patent number: 4448706
    Abstract: This invention relates to defoaming detergent additives especially suitable for use in automatic dishwashing machines. The defoaming detergent additives are mixtures of a certain nonionic surfactant and a bleached tallow acid phosphate ester.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: May 15, 1984
    Assignee: BASF Wyandotte Corporation
    Inventor: Bongsub Kim
  • Dichloroacetamides, herbicides containing acetanilides as herbicidal active ingredients and the dichloroacetamides as antagonists, and the use of these herbicides in controlling undesired plant growth
    Patent number: 4448960
    Abstract: Novel dichloroacetamides of the formula (I) ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, m, n, p and q have the meanings given in the description.The compounds are antagonists which increase the toleration, by crops, of herbicidal acetanilides. Herbicides containing the dichloroacetamides of the formula I in combination with acetanilides may be used for controlling undesired plant growth in Indian corn and cereals.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: May 15, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Rohr, Hanspeter Hansen, Peter Plath, Bruno Wuerzer
  • Halogenated phenolic polyols and rigid cellular compositions made therefrom
    Patent number: 4448952
    Abstract: Modified benzyl ether-containing resole polyols derived from a phenolic component, a non-aqueous aldehyde, and a halogen-containing aliphatic hydroxyl component are prepared using a metal derivative as a catalyst. These polyols react with organic polyisocyanates to yield closed cell, low friability, low combustibility, rigid polyurethane foams without the need for post curing at elevated temperature. They are also useful in the preparation of modified rigid polyisocyanurate foams.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: May 15, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: John T. Patton, Jr., John P. Rupert
  • Preparation of acicular, ferrimagnetic iron oxides
    Patent number: 4448761
    Abstract: Acicular ferrimagnetic iron oxides are prepared by a process in which iron (III) oxide hydroxide consisting essentially of lepidocrocite is reduced at from 350.degree. to 600.degree. C. by means of an organic compound which is a synthetic polymer with a molecular weight of from 3,000 to 40,000 to give magnetite, which, if desired, is subsequently partially or completely oxidized with an oxygen-containing gas at from 200.degree. to 450.degree. C.
    Type: Grant
    Filed: October 20, 1982
    Date of Patent: May 15, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Wilhelm Sarnecki, Jenoe Kovacs, Werner Loeser, Peter Rudolf, Guenter Vaeth
  • Phenolic polyols and rigid cellular compositions derived therefrom
    Patent number: 4448951
    Abstract: Modified benzyl ether-containing resole polyols derived from phenol, paraformaldehyde and an aliphatic hydroxyl compound are prepared using a metal derivative as a catalyst. These polyols react with organic polyisocyanates to yield closed cell, low friability, low combustibility, rigid polyurethane foams without the need for post curing at elevated temperature. They are also useful in the preparation of modified rigid polyisocyanurate foams.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: May 15, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: John P. Rupert, John T. Patton, Jr.
  • Isolation of isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene
    Patent number: 4448643
    Abstract: A process for isolating isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene by reacting the mixture with a primary alcohol in the presence of an acid condensing agent, to form the tertiary ether, separating off the unconverted hydrocarbons and decomposing the tertiary ether in the presence of an acid catalyst at an elevated temperature, wherein a primary C.sub.3 - or C.sub.4 -alcohol is used and the temperature at which the reaction mixture leaves the etherification stage, in which the tertiary ether is formed, is lower than the mean temperature in the etherification stage.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: May 15, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Alfred Lindner, Klaus Volkamer, Ulrich Wagner
  • Plant growth regulators
    Patent number: 4447255
    Abstract: New agents for regulating plant growth, especially for reducing the height of plants, containing a mixture of a quaternary substituted thianium or ammonium salt and a phosphonic acid derivative.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: May 8, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Eberhard P. Schott, Hans Lang
  • 10-Substituted 5-cyanomethylene-dibenzo[A,B]-cycloheptenes, their preparations, and therapeutic agents containing these compounds
    Patent number: 4447610
    Abstract: 10-Substituted 5-cyanomethylene-dibenzo[a,d]-cycloheptenes, their pure cis- and trans-isomers, their N-oxides and their pharmaceutically tolerated addition salts with acids, processes for their preparation, therapeutic agents containing these compounds and their use as drugs, especially as sedatives, hypnotics or tranquilizers.
    Type: Grant
    Filed: February 25, 1981
    Date of Patent: May 8, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Steiner, Hans P. Hofmann, Horst Kreiskott, Hans-Juergen Teschendorf, Dieter Lenke
  • Acylphosphine oxides and their use
    Patent number: 4447520
    Abstract: Acylphosphine oxides of the general formula ##STR1## where R.sup.1 is methyl or ethyl, R.sup.2 is a branched or straight-chain alkyl radical or chlorine, alkoxy or hydrogen, R.sup.3 and R.sup.4 are identical or different, and are each alkyl, alkoxy, alkylthio or chlorine and R.sup.5 is hydrogen, chlorine, alkoxy, alkylthio or alkyl, may be used as photoinitiators in photopolymerizable materials.
    Type: Grant
    Filed: August 19, 1982
    Date of Patent: May 8, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Henne, Anton Hesse, Manfred Jacobi, Gunnar Schornick, Rudolf Vyvial, Klaus Holoch