Patents by Inventor Hans-Ulrich Scholz

Hans-Ulrich Scholz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5336815
    Abstract: Preparation of vinyl glycols (I) ##STR1## (R.sup.1 to R.sup.6 =H, a carbo-organic radical, optionally substituted) in which an unsaturated diol of formula II ##STR2## is isomerized in the presence of a rhenium catalyst under neutral conditions. The compounds (I) serve as intermediates for the preparation of active substances and for the preparation of polymers.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: August 9, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Becker, Walter Gramlich, Michael Huellmann, Hans-Ulrich Scholz
  • Patent number: 5196609
    Abstract: The preparation of 3-alkoxycarbonyl propenals and 3-dialkoxymethyl propenals of the general formulae Ia and Ib respectively: ##STR1## (R.sup.1 =C.sub.1 -C.sub.3 -alkyl group; R.sup.2 and R.sup.3 =hydrogen, methyl, or ethyl; and R.sup.4 and R.sup.5 =C.sub.1 -C.sub.4 -alkyl groups, which may be joined to form a 5-membered or 6-membered ring), is effected by reacting a corresponding alcohol of the general formula IIa or IIb ##STR2## with oxygen or an oxygen-containing gas in the gas phase in the presence of a metal from Group IB of the Periodic Table or a compound of one such metal acting as catalyst.The target products serve as intermediates for the synthesis of carotenoids.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: March 23, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Aquila, Hans-Ulrich Scholz, Hartwig Fuchs, Wolfgang Krause, Joachim Paust, Werner Hoffmann
  • Patent number: 4871923
    Abstract: A wind power device comprises a rotor, a machine for converting wind energy, a transmission for transmitting a rotary movement of the rotor to the machine, a tower formed so that the rotor, the transmission and the machine are arranged on the tower, a housing accommodating the transmission and the machine, the rotor having a hub which is formed substantially as a circular ring and also having a plurality of blades which are arranged substantially centrally of the hub, and a bearing unit including at least two bearing members arranged symmetrically at both sides of the rotor wings as considered in an axial direction and supporting the hub on the housing.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: October 3, 1989
    Inventors: Hans-Ulrich Scholz, Heinz-Konrad Proeve
  • Patent number: 4816606
    Abstract: Aldehydes and ketones of the general formula I ##STR1## where R.sup.1 is hydrogen or an organic radical of 1 to n carbon atoms and R.sup.2 is a non-aromatic organic radical of 1 to m carbon atoms, (m+n) ranging from 2 to 24 and R.sup.1 and R.sup.2 being combinable to form a 4- to 12-membered ring, are prepared in a continuous manner by oxidizing an alcohol of the general formula II ##STR2## with oxygen or an oxygen-containing gas at elevated temperatures in the gas phase in the presence of a catalyst, by effecting the oxidation by means of a supported catalyst composed of an inert carrier having a smooth surface and from 0.1 to 20% by weight, based on the amount of carrier, of an active layer of copper, silver and/or gold in a tubular reactor or tube bundle reactor where the internal diameter D of the tube or tubes ranges from 10 to 50 mm and the largest diameter d of the coated supported catalysts is subject to the relationship d=from 0.1 to 0.2 D.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: March 28, 1989
    Assignee: Basf Aktiengesellschaft
    Inventors: Karl Brenner, Manfred Eggersdorfer, Wilhelm Ruppel, Harald Schultheiss, Hans-Ulrich Scholz
  • Patent number: 4206153
    Abstract: A process for treating residues which result from the Wittig synthesis of olefins and which consist principally of methanol, triphenylphosphine oxide, salts and organic by-products, by steam-stripping the volatile constituents, with partial condensation of the steam, and separating the resulting aqueous-organic mixture at C. into a saline aqueous phase and an organic phase containing principally triphenylphosphine oxide. Using this process provides a simple method of freeing, from triphenylphosphine oxide and other organic impurities, the effluent from syntheses which result in the formation of triphenylphosphine oxide, and thereby on the one hand substantially facilitates the purification of the effluent and on the other hand provides a simple method of recovering the triphenylphosphine oxide.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: June 3, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Paul Grafen, Hans-Ulrich Scholz, Bernhard Schulz
  • Patent number: 4182731
    Abstract: Aqueous solutions of polyenyltriarylphosphonium salts are prepared from solutions of the corresponding polyenyltriarylphosphonium salts in organic solvents by driving off the solvent with steam, part of the steam being allowed to condense. Some of the said triarylphosphonium salts may be used directly as pesticides while others are used as intermediates for organic syntheses, especially in the carotinoid field.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: January 8, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernhard Schulz, Paul Grafen, Hans-Ulrich Scholz, Hans Grassner, Werner Reif