Patents Assigned to Hoechst
  • Patent number: 4186112
    Abstract: Catalyst for reducing carbon monoxide by means of hydrogen so as to obtain a mixture consisting substantially of C.sub.1 -C.sub.4 -hydrocarbons. The catalyst is made by precipitating a salt of a hydrocyanic acid of the general formula Me.sub.I Me.sub.II (CN).sub.x, separating and drying the salt so precipitated and forming it. In the formula, the cationic component Me I stands for at least one of the elements Ce, Cu, Co, Ni, Fe, Mn, Zn, Ag and K or a mixture of these elements, or for Ca or Mg in admixture with (NH).sub.4 ; the anionic component Me.sub.II stands for at least one of the elements Cu, Co, Ni, Fe, Mn, Zn and Ag or a mixture of these elements; and x stands for the sum of the metal valencies; Me.sub.I and Me.sub.II are not permitted to stand for iron alone, or for a mixture of iron with copper.
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: January 29, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wilhelm Vogt, Jurgen Koch, Hermann Glaser
  • Patent number: 4185012
    Abstract: Water copper complex disazo dyestuffs of the formula ##STR1## had been found wherein A is phenyl or naphthyl, C is phenylene or phenylene substituted by lower alkyl, C and C' together are naphthylene, B is naphthylene, m is 1, 2, 3, 4, 5 or 6 and Y is --SO.sub.2 --CH.dbd.CH.sub.2 or --SO.sub.2 --CH.sub.2 --CH.sub.2 --Z wherein Z is hydroxy, methylsulfonyloxy, p-tolylsulfonyloxy, acetoxy, dimethylamino, diethylamino, thiosulfato, phosphato or sulfato, which are well suitable for dyeing and printing wool, silk and polyamide fibres from an acidic, neutral or slightly alkaline medium, and they are particularly valuable for dyeing and printing cotton and other natural or regenerated cellulose fibres, yielding dyeings and prints distinguished by high tinctorial strengths and intense shades, such as navy blue, grey, black, brown or red brown, having good fastnesses especially to washing, to chlorinated water to light and to dry-cleaning.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: January 22, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Fritz Meininger, Hartmut Springer
  • Patent number: 4184932
    Abstract: Axially unsymmetrical articles are electropolished zonewise, or the inside and outside surfaces of articles are electropolished zonewise and simultaneously. To this end a cathode of which the geometrical configuration and surface area correspond to the surface to be electropolished is arranged opposite an anode; more particularly, the cathode is subdivided into a plurality of segments which are non-conductive with respect to one another, through which segments a current of the necessary density is alternately passed and discontinued, at intervals, for a period compatible with the production of the desired electropolishing effect.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: January 22, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Michael Ahlgrim, Gerhard Mietens, Helga Zygmann
  • Patent number: 4185105
    Abstract: 4-Phenyl-8-amino-tetrahydroisoquinolines of the formula ##STR1## in which R.sub.1 stands for bromine and R.sub.2 stands for hydrogen or both R.sub.1 and R.sub.2 represent chlorine, and their salts with physiologically tolerated acids, pharmaceutical preparations prepared therefrom, process for the manufacture of these preparations and their use for the treatment of depressive conditions.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: January 22, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl Schmitt, Irmgard Hoffmann, Ulrich Schacht
  • Patent number: 4185106
    Abstract: A cosmetic composition comprising a content of an 1-hydroxy-2-pyridone of the general formula ##STR1## in which R.sub.1 stands for hydrogen, alkyl of 1 to 17 carbon atoms, alkenyl of 2 to 17 carbon atoms, cycloalkyl of 5 to 8 carbon atoms, bicycloalkyl of 7 to 9 carbon atoms, cycloalkyl-alkyl of 1 to 4 alkyl carbon atoms, the cycloalkyl groups being optionally substituted by alkyl groups of 1 to 4 carbon atoms, aryl, aralkyl of 1 to 4 alkyl carbon atoms, aryl-alkenyl of 2 to 4 alkenyl carbon atoms, aryloxy-alkyl or arylthio-alkyl of 1 to 4 alkyl carbon atoms, benzhydryl, phenylsulfonyl-alkyl of 1 to 4 alkyl carbon atoms, furyl or furyl-alkenyl of 2 to 4 alkenyl carbon atoms, the aryl groups being optionally substituted by alkyl of 1 to 4 carbon atoms, by alkoxy of 1 to 4 carbon atoms, by nitro, cyano or halogen atoms, R.sub.2 stands for hydrogen, alkyl of 1 to 4 carbon atoms, alkenyl or alkinyl of 2 to 4 carbon atoms, halogen atoms or benzyl, R.sub.
    Type: Grant
    Filed: August 15, 1975
    Date of Patent: January 22, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Dittmar, Eberhard Futterer, Gerhard Lohaus
  • Patent number: 4185068
    Abstract: This invention relates to a process for continuously preparing a web of thermoplastic flat film for a subsequent winding operation, by providing it with embossed lines, preferably one line along each edge or very near each edge of the web, which process comprises embossing the lines while the film web is in a thermal state in which the tensioned film may be easily embossed, and is tensioned in all directions without undergoing a stretching operation effecting a dimensional change of the film web, and then cooling the embossed web of film.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: January 22, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Willi J. Schmidt, Norbert Roth
  • Patent number: 4184842
    Abstract: Process for the continuous dyeing of flat textile structures made of cellulose fibers and their mixtures with synthetic fiber materials by applying onto the web of fibrous material an aqueous solution of at least one reactive dyestuff and a fixation agent mixture of a liquid alkali metal silicate of the formula Me.sub.2.sup.I .multidot.x SiO.sub.2 (x=3-5) (water glass) and an aqueous alkali metal hydroxide solution, placing the material thus treated into a dwelling chamber, exposing the material in a cuttled-up or opened-out condition in said chamber to humid heat, so that the dyestuff is fixed by the dwelling operation, and finally removing the material again continuously from the dwelling chamber.
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: January 22, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Hans-Ulrich von der Eltz
  • Patent number: 4185028
    Abstract: Double ylide complexes of metals are made by reacting trimethylphosphin-imino-dimethyl-methylene phosphorane of the formula ##STR1## with one or more compounds of the metals nickel, palladium, platinum, gold, zinc, cadmium, aluminum, gallium, indium, thallium, magnesium or lithium.The novel double ylide complexes comprise various metal-bis[nitrido-bis(dimethylphosphonium methylides)], dimethyl-metal[nitrido-bis(dimethylphosphonium methylides)], and lithium-[nitrido-bis(dimethylphosphonium methylide)].
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: January 22, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hubert Schmidbaur, Hans-Jurgen Fuller
  • Patent number: 4185098
    Abstract: Disinfectants which are characterized in that they contain a mixture of a compound of the formula I ##STR1## in which R.sup.1 represents a hydrogen atom or a methyl group,R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6, which may be identical or different, each represent a hydrogen atom or an alkyl radical having of from 1 to 4 carbon atoms,R.sup.7 represents an alkyl or alkenyl group having from 8 to 18 carbon atoms,n is 2 or 3 andm is zero or an integer from 1 to 4, in admixture with one or more chlorinated hydrocarbons or with non chlorinated aromatic hydrocarbons and a compound of the formula II ##STR2## or of the formula III ##STR3## or of the formula IV ##STR4## or a mixture of compounds of the formulae II to IV, in which R.sup.8 represents an alkyl or alkenyl radical having from 8 to 18 carbon atoms,R.sup.9 represents an alkyl or alkenyl radical having from 7 to 17 carbon atoms;R.sup.10 represents a hydrogen atom, a methyl or ethyl group,R.sup.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: January 22, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ulrich Cuntze, Wolfgang Raether, Bernhard Reul, Gerhard Ross
  • Patent number: 4183811
    Abstract: A membrane unit and apparatus for removing toxic metabolites and metabolites normally present in urine from blood is disclosed. The unit comprises a cavity through which the contaminated blood passes, said cavity comprising at least one permselective membrane and at least one adsorbent. The apparatus comprises at least one membrane unit which is connected to inlet and outlet means for transporting contaminated blood to the unit and decontaminated blood from the unit.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: January 15, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Axel Walch, Ludwig Lammers
  • Patent number: 4183727
    Abstract: An improved process for the preparation of water-insoluble azo dyestuffs on vegetable fibers according to the method of the ice-color technique had been found, impregnating first the fibrous material with an azo component and then developing it with a diazo solution of an aromatic amino compound in the neutral or slightly alkaline range, wherein an alkali metal borate is used to neutralize the diazo solution.The dyeings prepared in this improved dyeing process for ice color dyeing have very good fastness properties and are obtained with high color yields. The improvement of the dyeing process is seen in the use of alkali metal borate as a neutralizing agent, which avoids the creation of foam in the surfactant-containing diazo solution.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: January 15, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hasso Hertel, Peter Frey
  • Patent number: 4184060
    Abstract: This invention relates to an improvement in the process for developing a two-component diazotype material on a non-metallic carrier and which can be developed by the influence of heat, and contains, in particular, compounds which can be decomposed under the influence of heat and produce in this process an alkaline environment, the heat influence being produced by electromagnetic radiation radiated from a power transmitter, the improvement comprising subjecting the diazotype copying material to microwave radiation with a frequency higher than 10.sup.9 Hz without a heat-generating body being placed between the power transmitter and the diazotype material. The invention also relates to a developing device for developing the diazotype material.
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: January 15, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Helmut Lembens
  • Patent number: 4182773
    Abstract: What is disclosed are prostaglandin-analogous cyclopentane derivatives of the formula I ##STR1## wherein R.sup.1 is hydrogen or a linear or branched, saturated or unsaturated aliphatic or cycloaliphatic radical having from 1 to 8 carbon atoms, or an araliphatic radical having from 7 to 9 carbon atoms, or a physiologically tolerable metal, NH.sub.4 or substituted ammonium ion derived from a primary, secondary or tertiary amine;R.sup.2 is a linear or branched, saturated or unsaturated aliphatic hydrocarbon radical having from 1 to 8 carbon atoms;R.sup.3 is hydrogen or a R.sup.4 CO group wherein R.sup.4 is a hydrogen atom or a linear or branched alkyl group having up to 10 carbon atoms;A is a saturated, linear or branched alkylene group having from 2 to 5 carbon atoms, and a process for the manufacture thereof.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: January 8, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wilhelm Bartmann, Ulrich Lerch, Hermann Teufel, Bernward Scholkens, Gerhard Beck
  • Patent number: 4182350
    Abstract: Cigarette filters made of a fibrous adsorption agent, wherein the adsorption agent contains weakly hydrophilic polyolefin fibers made by a flash evaporation process, have excellent adsorption properties for tar and nicotine.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: January 8, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Peter Steinau
  • Patent number: 4182626
    Abstract: Granular compositions containing pulverulent magnesium are made by blending the pulverulent magnesium ingredient with the desired other ingredient(s). To this end, a premix is formed by mixing, in a first stage, the pulverulent magnesium with the other ingredient(s) in a ratio by weight of 4:1 to 1:19; and intimately mixing this pre-mix, in a second stage, with further proportions of said other ingredient(s) giving a total ratio by weight of 1:799 to 1:19.
    Type: Grant
    Filed: June 20, 1978
    Date of Patent: January 8, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Georg Strauss, Wilhelm Portz, Albert Braun, Joachim Kandler, Klaus Komorniczyk, Hans-Dieter Thiel
  • Patent number: 4182624
    Abstract: Benzhydryl-imidazole derivatives having carboxyl functions in the imidazole ring have valuable properties in plant protection and growth regulation in agriculture and horticulture. They are also effective as antimycotis, fungicides and herbicides and can be used for combating plant-pathogenic bacteria.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: January 8, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Alfons Soder, Hermann Bieringer, Helmut Burstell, Peter Langeluddeke, Burkhard Sachse
  • Patent number: 4182899
    Abstract: The present application relates to the optical resolution into optical antipodes of compounds of the formula ##STR1## as well as to salts consisting of an optical isomer of a compound of the above formula and an optical isomer of 2-aminobutanol. The optically active compounds of the above formula are employed as starting materials for the production of semisynthetic antibiotics of the cephalosporin or penicillin type.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: January 8, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Yung B. Chae, Dae W. Kim
  • Patent number: 4182708
    Abstract: Azo pigments are obtained by diazotizing a diazotizable aromatic amine without solubilizing groups in anhydrous dipolar aprotic water-miscible solvents with the stoichiometric amount or a small excess of nitrosylsulfuric acid or nitrosyl chloride, coupling the diazonium compound so obtained with a coupling component and isolating the pigment obtained in usual manner. This process is carried out in homogeneous solution and yields azo pigments the advantageous properties of which cannot be achieved by other methods, for example, the excellent purity, grain softness, narrow range of particle size distribution, excellent dispersibility in plastic materials and color lacquers, high gloss and excellent opacity in color lacquers.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: January 8, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Josef Landler, Klaus Hunger, Erhard Worfel
  • Patent number: 4182775
    Abstract: Benzoic acids of the general formula I ##STR1## in which R, R.sup.1, R.sup.2 and Y have the meanings as mentioned in the following, and which in the form of the free compounds or in the form of the physiologically tolerated salts and esters possess valuable pharmacological properties, processes for preparing them, pharmaceutical preparations containing them, and their use as or in medicaments.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: January 8, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rudi Weyer, Volker Hitzel, Ernold Granzer
  • Patent number: 4181420
    Abstract: This invention relates to a development device for developing sheets of diazo copying material, in particular microfiches, comprising a substantially gas-tight, closed development chamber adapted to contain a developer medium composed of ammonia gas and water vapor, a pair of feed rolls at a feed opening, a pair of delivery rolls at a delivery opening and a first and a second pair of guide rolls in said chamber next to the pair of feed rolls and the pair of delivery rolls, an upper and a lower gas-permeable endless belt guided around one roll of each pair of guide rolls in each case, a space between adjacent sides of said endless belts aligned with gaps between the pairs of feed and delivery rolls, and means for presetting the peripheral speed of the feed rolls independently of the development temperature, whereby the sheets may be transported at a relatively high or a relatively low development temperature.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: January 1, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Blume, Eberhard Schornig