Patents by Inventor Rainer Manetsberger

Rainer Manetsberger 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).

  • Sulfonated phosphines, processes for their preparation, and use thereof as constituents of catalyst systems
    Patent number: 5780674
    Abstract: Sulfonated phosphines of the formula ##STR1## in which R is cyclohexyl or alkyl having 1 to 4 carbon atoms, M is hydrogen, alkyl substituted ammonium, aryl substituted-ammonium, monovalent metal, or the chemical equivalent of a polyvalent metal, x is 1, 2, or 3 and n is 0 or 1. These compounds are obtained by sulfonation of the non-sulfonated parent substances with oleum or an anhydrous mixture of sulfuric acid and orthoboric acid.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: July 14, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Guido Albanese, Rainer Manetsberger, Wolfgang A. Herrmann
  • Process for the preparation of sulfonated arylphosphines
    Patent number: 5684181
    Abstract: The sulfonation of arylphosphines, which contain at least one aromatic radical which can be sulfonated, is carried out with an anhydrous mixture of sulfuric acid and orthoboric acid. By choosing the appropriate reaction temperature, the process allows selective introduction of the desired number of sulfonic acid radicals into the phosphine molecule and avoids the formation of phosphine oxides. When separating the sulfonation mixture, the orthoboric acid can be separated off together with the sulfuric acid.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: November 4, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Guido Albanese, Rainer Manetsberger, Wolfgang A. Herrmann, Christine Schwer
  • Sulfonated phosphines, processes for their preparation, and use thereof as constituents of catalyst systems
    Patent number: 5663426
    Abstract: Sulfonated phosphines of the formula ##STR1## in which R is cyclohexyl or alkyl having 1 to 4 carbon atoms, M is hydrogen, alkyl substituted ammonium, aryl substituted-ammonium, monovalent metal, or the chemical equivalent of a polyvalent metal, x is 1, 2, or 3 and n is 0 or 1. These compounds are obtained by sulfonation of the non-sulfonated parent substances with oleum or an anhydrous mixture of sulfuric acid and orthoboric acid.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: September 2, 1997
    Assignee: Hoechst Aktiengeschaft
    Inventors: Guido Albanese, Rainer Manetsberger, Wolfgang A. Herrmann
  • 5H-phenyl-3,13-disulfonatodibenzo-phosphole and a process for its preparation
    Patent number: 5637762
    Abstract: 5H-phenyl-3,13-disulfonatodibenzophosphole and a process for its preparation.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: June 10, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Guido Albanese, Rainer Manetsberger, Wolfgang A. Herrmann, Rochus Schmid
  • Sulfonated 2,2'-bis (Diphenylphosphinomethyl)-1,1'-binaphthalenes, process for their preparation and their use in a process for the hydroformylation of olefinically unsaturated compounds
    Patent number: 5565398
    Abstract: Sulfonated diphosphines of the formula ##STR1## in which Ar is m--C.sub.6 H.sub.4 --SO.sub.3 M, M is hydrogen, ammonium, a monovalent metal, or the chemical equivalent of a polyvalent metal; Ph is phenyl; the m's are individually 1 or 2, and the n's are individually 0, 1, or 2. A method of their preparation and the hydroformylation of olefins and olefinically unsaturated compounds using these compounds as a constituent of water-soluble catalyst systems are also disclosed.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: October 15, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang A. Herrmann, Rainer Manetsberger, Helmut Bahrmann, Christian Kohlpaintner
  • Sulfonated 2,2'-bis (diphenylphosphinomethyl)-1,1'-binaphthalenes, process for their preparation and their use in a process for the hydroformylation of olefinically unsaturated compounds
    Patent number: 5481045
    Abstract: Sulfonated diphosphines of the formula ##STR1## in which Ar is m-C.sub.6 H.sub.4 -SO.sub.3 M, M is hydrogen, ammonium, a monovalent metal, or the chemical equivalent of a polyvalent metal; Ph is phenyl; the m's are individually 1 or 2, and the n's are individually 0, 1, or 2. A method of their preparation and the hydroformylation of olefins and olefinically unsaturated compounds using these compounds as a constituent of water-soluble catalyst systems are also disclosed.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: January 2, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang A. Herrmann, Rainer Manetsberger, Helmut Bahrmann, Christian Kohlpaintner, Peter Lappe
  • Process for the preparation of sulfonated arylphosphines
    Patent number: 5451698
    Abstract: The sulfonation of arylphosphines, i.e. mono-, di-, oligo- and polyphosphines, which contain at least one aromatic radical capable of being sulfonated, is carried out in the presence of a Lewis acid at 0.degree. to 80.degree. C. The process avoids side-reactions, in particular the formation of phosphine oxides. In treating the sulfonation mixture, the Lewis acid can be removed together with the sulfuric acid.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: September 19, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Helmut Bahrmann, Peter Lappe, Wolfgang A. Herrmann, Rainer Manetsberger, Guido Albanese, Klaus Bergrath
  • Sulfonated 2,2'-bis (diphenylphosphinomethyl)-1,1'-binaphthalenes, process for their preparation and their use in a process for the hydroformylation of olefinically unsaturated compounds
    Patent number: 5347045
    Abstract: Sulfonated diphosphines of the formula ##STR1## in which Ar is m-C.sub.6 H.sub.4 --SO.sub.3 M, M is hydrogen, ammonium, a monovalent metal, or the chemical equivalent of a polyvalent metal; Ph is phenyl; the m's are individually 1 or 2, and the n's are individually 0, 1, or 2. A method of their preparation and the hydroformylation of olefins and olefinically unsaturated compounds using these compounds as a constituent of water-soluble catalyst systems are also disclosed.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: September 13, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang A. Herrmann, Rainer Manetsberger, Helmut Bahrmann, Christian Kohlpaintner, Peter Lappe
  • 3,4-dimethyl-2,5,6-tris(p-sulfonatophenyl)-1-phosphanorbornadiene, process for the preparation thereof and process for the hydroformylation of olefinnically unsaturated compounds
    Patent number: 5312951
    Abstract: The chemical compound 3,4-dimethyl-2,5,6-tris(p-sulfonatophenyl)-1-phosphanorbernadiene, a process for the preparation thereof and a process for the hydroformylation of olefinically unsaturated compounds with the use of catalysts which contain the aforementioned chemical compound.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: May 17, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang A. Herrmann, Rainer Manetsberger, Christian Kohlpaintner, Helmut Bahrmann