Patents by Inventor Juergen Schossig

Juergen Schossig 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).

  • Continuous method for production of cinnamaldehyde and dihydrocinnamaldehyde derivatives
    Patent number: 6723883
    Abstract: The present invention relates to a continuous process for the preparation of cinnamaldehyde or cinnamaldehyde derivatives by continuous reaction of benzaldehyde derivatives with alkanals in the presence of bases and optionally subsequent continuous hydrogenation in a circulation reactor in the presence of a suspension catalyst and hydrogen to give dihydrocinnamaldehyde derivatives.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Jörg Therre, Andreas Kramer, Andreas Weiper-Idelmann, Michael Schulik, Regina Benfer, Jürgen Schossig, Mathias Haake, Hans-Georg Göbbel
  • Preparation of glutaric dialdehyde
    Patent number: 5679868
    Abstract: A process for the preparation of glutaric dialdehyde by the reaction of alkoxy dihydropyrans of the general formula I ##STR1## in which R stands for C.sub.1 to C.sub.20 alkoxy, with water at temperatures ranging from 0.degree. to 150.degree. C. and pressures of from 0.01 to 50 bar in the presence of a which microporous, crystalline aluminum silicate catalyst, e.g. a beta-type zeolite or pentasil catalyst having a pore diameter greater than 5.4 .ANG..
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: October 21, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz-Josef Kneuper, Rainer Becker, Eugen Gehrer, Juergen Schossig, Andreas Henne
  • Preparation of glutaraldehyde
    Patent number: 5600018
    Abstract: A process for preparing glutaraldehyde by reaction of alkoxydihydropyrans of the general formula I ##STR1## where R is C.sub.1 -C.sub.20 -alkoxy, with water at from 0.degree. to 150.degree. C. and from 0.01 to 50 bar in the presence of a catalyst consisting essentially of a bleaching earth.
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: February 4, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Becker, Wolfgang Friedrich, Walter Klink, Juergen Schossig, Andreas Henne
  • Catalyst and the amination of alcohols under hydrogenating conditions
    Patent number: 5166433
    Abstract: Catalysts whose active material contains, in addition to from 20 to 85% by weight, calculated as ZrO.sub.2, of oxygen-containing zirconium compounds, from 1 to 30% by weight, calculated as CuO, of oxygen-containing compounds of copper and from 1 to 40% by weight each, calculated as CoO or NiO, respectively, of oxygen-containing compounds of cobalt and of nickel are used for the amination of alcohols under hydrogenating conditions.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: November 24, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Irgang, Juergen Schossig, Wolfgang Schroeder, Siegfried Winderl
  • Hydrogenation of acetylenic alcohols
    Patent number: 5068468
    Abstract: A process for the preparation of saturated alcohols by catalytic hydrogenation of acetylenic alcohols at a temperature of from 50.degree. to 200.degree. C. and under a pressure of from 30 to 320 bar, wherein use is made of a catalyst containing from 20 to 85% of nickel oxide, from 0 to 30% w/w of copper oxide, from 1 to 30% w/w of zirconium dioxide, from 1 to 30% w/w of silicon dioxide and from 1 to 30% w/w of aluminum oxide, by weight of the oxidic, unreduced catalyst.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: November 26, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Schossig, Gerhard Koppenhoffer, Matthias Irgang, Rudi Schnur, George Roley
  • Catalyst for the hydrogenation of unsaturated aliphatic compounds
    Patent number: 5037793
    Abstract: A catalyst for the hydrogenation of unsaturated aliphatic compounds having a content of 20-70% w/w of nickel oxide, 25-45% w/w of zirconium oxide and 5-40% w/w of copper oxide, based on the oxidic, unreduced catalyst.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: August 6, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Toussaint, Juergen Schossig, Heinz Graefje, Wolfgang Reiss, Roland Spahl, Matthias Irgang, Walter Himmel, Gerhard Koppenhoefer
  • Process for the hydrogenation of acetylenic alcohols
    Patent number: 5015788
    Abstract: A process for the preparation of saturated alcohols by catalytic hydrogenation of acetylenic alcohols at a temperature of from 50.degree. to 200.degree. C. and under a pressure of from 30 to 320 bar, wherein the catalyst used has a content of from 20 to 75% of nickel oxide, from 10 to 75% of zirconium dioxide and from 5 to 50% of copper oxide, by weight of the oxidic, unreduced catalyst.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: May 14, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Toussaint, Juergen Schossig, Heinz Graefje, Wolfgang Reiss, Roland Spahl, Matthias Irgang, Walter Himmel, Gerhard Koppenhoefer
  • Catalyst for the amination of alcohols under hydrogenating conditions
    Patent number: 5002922
    Abstract: Catalysts whose active material contains, in addition to from 20 to 85% by weight, calculated as ZrO.sub.2, of oxygen-containing zirconium compounds, from 1 to 30% by weight, calculated as CuO, of oxygen-containing compounds of copper and from 1 to 40% by weight each, calculated as CoO or NiO, respectively, of oxygen-containing compounds of cobalt and of nickel are used for the amination of alcohols under hydrogenating conditions.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: March 26, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Irgang, Juergen Schossig, Wolfgang Schroeder, Siegfried Winderl
  • Preparation of alkanediols from alkynols
    Patent number: 4864066
    Abstract: A process for the preparation of alkanediols by hydrogenation of alkynediols of from 3 to 8 carbon atoms in which a solution of the alkynediol in an alcohol of from 1 to 8 carbon atoms, the mass fraction of alkynediol being more than 5%, of water at most 10%, and of alkanediol from 20% to 85%, is hydrogenated at temperatures of 110.degree. C. to 240.degree. C. and pressures greater than 10 bar, the pH being greater than 6.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: September 5, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Mueller, Herbert Toussaint, Juergen Schossig
  • Preparation of catalysts, and their use in hydrogenation and amination reactions
    Patent number: 4758546
    Abstract: Catalysts containing one of the metals iron, cobalt or nickel or a mixture of these are prepared by reduction of the particular catalyst intermediate with hydrogen at from 80.degree. to 260.degree. C. and under from 1 to 300 bar, in the liquid phase and in the presence of a redox system, and are used in the hydrogenation and amination of organic compounds.
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: July 19, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Baer, Wolfgang Reiss, Juergen Schossig, Herbert Toussaint
  • Preparation of N-alkylpiperidines and N-alkylpyrrolidines
    Patent number: 4386208
    Abstract: N-Alkylpiperidines or N-alkylpyrrolidines are obtained by hydrogenating a corresponding N-alkyldicarboxylic acid imide over a fixed catalyst by first working to only partial conversion, for example of about 50%, and distilling off the required product together with water from the partially converted mixture, where appropriate with recycling of the unconverted remainder.
    Type: Grant
    Filed: July 15, 1981
    Date of Patent: May 31, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Rebafka, Juergen Schossig, Wolfgang Reiss, Dieter Voges