Patents by Inventor Lothar Laupichler

Lothar Laupichler 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).

  • Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts
    Patent number: 6365790
    Abstract: Alkenes are prepared by partial hydrogenation of alkynes in the liquid phase at from 20 to 250° C. and hydrogen partial pressures of from 0.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: April 2, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Reimer, Gerd Kaibel, Ulrich Kammel, Franz Josef Bröcker, Andreas Ansmann, Heinz Etzrodt, Manfred Stroezel, Mathias Haake, Lothar Laupichler, Bernhard Bockstiegel
  • Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts
    Publication number: 20010039368
    Abstract: Alkenes are prepared by partial hydrogenation of alkynes in the liquid phase at from 20 to 250° C. and hydrogen partial pressures of from 0.
    Type: Application
    Filed: December 12, 2000
    Publication date: November 8, 2001
    Inventors: Klaus Reimer, Gerd Kaibel, Ulrich Kammel, Franz Josef Brocker, Andreas Ansmann, Heinz Etzrodt, Manfred Stroezel, Mathias Haake, Lothar Laupichler, Bernhard Bockstiegel
  • Preparation of .gamma.,.delta.-unsaturated ketones by the Carroll reaction, novel catalysts therefor and the preparation thereof
    Patent number: 6051741
    Abstract: A process for preparing .gamma.,.delta.-unsaturated ketones of the general formula I ##STR1## by reacting an allyl alcohol of the general formula II ##STR2## in which R.sup.1 is H or a hydrocarbon radical having 1 to 20 carbon atoms, with diketene or an alkyl acetoacetate of the general formula III ##STR3## in which R.sup.2 is alkyl having 1 to 4 carbon atoms in an unmodified or modified Carroll reaction in the presence of an aluminum catalyst, wherein aluminum compounds which are stable liquids at room temperature, or a mixture of such aluminum compounds, which comprise at least one radical formed from an alkyl acetoacetate and 1 or 2 alkoxy radicals, or else comprise exclusively radicals formed from alkyl acetoacetates, which are esterified with sec-butanol or isobutanol, or else are esterified with at least two different alcohols, are used as aluminum catalyst.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: April 18, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Etzrodt, Dietmar Weller, Carsten Oost, Hagen Jaedicke, Manfred Stroezel, Bernhard Bockstiegel, Lothar Laupichler, Klaus Reimer
  • Polymerizable, chiral compounds and their use
    Patent number: 5886242
    Abstract: The invention relates to chiral compounds containing at least one divalent or polyvalent chiral group, at least one polymerizable group, at least one spacer and at least one mesogenic group, and to their use as polymerizable, chiral dopes for the preparation of cholesteric networks.The novel compounds are suitable for use in electro-optical displays or as chiral dopes for nematic or cholesteric liquid crystals in order to produce layers which reflect in colors.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: March 23, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Etzbach, Paul Delavier, Karl Siemensmeyer, Gerhard Wagenblast, Lothar Laupichler, Volkmar Vill
  • Polymerizable, chiral compounds and their use
    Patent number: 5780629
    Abstract: The invention relates to chiral compounds containing at least one divalent or polyvalent chiral group, at least one polymerizable group, at least one spacer and at least one mesogenic group, and to their use as polymerizable, chiral dopes for the preparation of cholesteric networks. The novel compounds are suitable for use in electro-optical displays or as chiral dopes for nematic or cholesteric liquid crystals in order to produce layers which reflect in colors.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: July 14, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Etzbach, Paul Delavier, Karl Siemensmeyer, Gerhard Wagenblast, Lothar Laupichler, Volkmar Vill
  • Optically activate phosphines,their preparation and their metal complexes, and use in asymmetric synthesis
    Patent number: 5723642
    Abstract: Optically active phosphines of the general formula I or II ##STR1## where the variables have the following meanings: X is an optically active terpene radical,R is an unsubstituted or substituted phenyl radical,Y is a bridge member having 1-10 C atoms in the formula In is 1,2 or 3 andm is 0,1 or 2 with the proviso that n+m=3 in the formula IIn is 1 or 2 andm is 0 or 1 with the proviso that n+m=2, their preparation and use are described.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: March 3, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Sturmer, Lothar Laupichler, Paul Knochel, Falk Langer