Patents by Inventor Bruno Bomer

Bruno Bomer 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).

  • Chromatographic separation of enantiomers of lactones
    Patent number: 6689889
    Abstract: The present invention relates to the use of optically active polymers of N-acryloyl-phenylalanine neomenthylamide as such, in crosslinked form and/or in carrier-bonded form as stationary phases for the chromatographic separation of enantiomers of lactones.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: February 10, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Lange, Rolf Grosser, Burkhard Köhler, Stefan Michel, Bruno Bömer, Uwe Zweering
  • Polymers chromatographic separation of enantiomers
    Patent number: 6559334
    Abstract: The invention relates to novel optically active polymerizable dipeptides, to the process for the preparation thereof, to the polymerization thereof and to the use of the polymers as adsorbents for the chromatographic separation of enantiomers.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: May 6, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Lange, Michael Grosse-Bley, Bruno Bömer, Rolf Grosser, Franz-Peter Hoever
  • Chromatographic separation of enantiomers of lactones
    Publication number: 20020133017
    Abstract: The present invention relates to the use of optically active polymers of N-acryloyl-phenylalanine neomenthylamide as such, in crosslinked form and/or in carrier-bonded form as stationary phases for the chromatographic separation of enantiomers of lactones.
    Type: Application
    Filed: January 10, 2001
    Publication date: September 19, 2002
    Inventors: Walter Lange, Rolf Grosser, Burkhard Kohler, Stefan Michel, Bruno Bomer, Karin-Elfriede Bomer, Guido Martin Bomer, Felix Marcel Bomer, Uwe Zweering
  • Chromatographic enantiomer separation of lactones
    Patent number: 6274736
    Abstract: The present invention relates to the use of optically active polymers of N-acryloyl-phenylalanine neomenthylamide as such, in crosslinked form and/or in carrier-bonded form as stationary phases for the chromatographic separation of enantiomers of lactones.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: August 14, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Lange, Rolf Grosser, Burkhard Köhler, Stefan Michel, Bruno Bömer, Uwe Zweering
  • Chiral stationary phases for chromatographic separation of optical isomers
    Patent number: 5868938
    Abstract: The invention relates to chiral polymers which are bonded to a support and have improved properties, a process for the preparation of these materials and their use as chiral stationary phases in the chromatograhic separation of optical isomers, in particular of racemates into their enantiomers.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: February 9, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bruno Bomer, deceased, by Guido Martin Bomer, Rolf Grosser, Walter Lange, Uwe Zweering, Burkhard Kohler, Wolfram Sirges, Michael Grosse-Bley
  • Chlorine-free multifunctional resins for paper finishing
    Patent number: 5739249
    Abstract: The invention relates to a new process for the preparation of cellulose-containing material provided with a dry-strength and wet-strength finish and/or sized, characterised in that the cellulose-containing material is treated with a water-dispersible polyisocyanate mixture (I), which contains tertiary amino and/or ammonium groups, optionally polyether units and optionally hydrophobic groups.
    Type: Grant
    Filed: August 8, 1995
    Date of Patent: April 14, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Reiners, Hans-Josef Laas, Joachim Konig, Helmut Reiff, Joachim Probst, Bruno Bomer, Reinhard Halpaap, Fritz Puchner, Harro Traubel
  • Leather tanning agent and standardizing agents for dyestuffs
    Patent number: 5580355
    Abstract: Polyaspartic acid and its salts and anhydrides are outstandingly suitable as tanning agents, as retanning agents and as standardizing agents for dyestuffs.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: December 3, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Torsten Groth, Winfried Joentgen, Ulrich Muller, Bruno Bomer, deceased, Guido M. Bomer, heir, Harro Traubel
  • Optically active sulphur-containing amino acid derivatives
    Patent number: 5510530
    Abstract: The invention relates to new optically active sulphur-containing amino acid derivatives, a process for their preparation, their polymerization to give optically active polymers and the use of these optically active polymers as adsorbents for chromatographic separation of racemates into enantiomers.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: April 23, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Grosse-Bley, Bruno Bomer, Rolf Grosser, Dieter Arlt, Walter Lange
  • Chlorine-free multifunctional resins for paper finishing
    Patent number: 5503714
    Abstract: The invention relates to a new process for the preparation of cellulose-containing material provided with a dry-strength and wet-strength finish and/or sized, characterized in that the cellulose-containing material is treated with a water-dispersible polyisocyanate mixture (I), which contains tertiary amino and/or ammonium groups, optionally polyether units and optionally hydrophobic groups.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: April 2, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Reiners, Hans-Josef Laas, Joachim Konig, Helmut Reiff, Joachim Probst, Bruno Bomer, Reinhard Halpaap, Fritz Puchner, Harro Traubel
  • Optically active amino acid sulphoxide and amino acid sulphone derivatives
    Patent number: 5481026
    Abstract: The invention relates to new optically active amino acid derivatives of the general formula (I) ##STR1## in which n, R, R.sub.1, R.sub.2, R.sub.3, X and A have the meaning given in the description, which amino acid derivatives contain sulphoxide or sulphone groups, to two basic synthetic routes for the preparation from sulphur-containing amino acids, to the polymerization of these monomers and to the use of the polymers as optically active adsorbents for chromatographic resolution of racemates to give the enantiomers.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: January 2, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Grosse-Bley, Bruno Bomer, Rolf Grosser, Walter Lange, Franz-Peter Hoever, Dieter Arlt
  • Softening and waterproofing retanning agents
    Patent number: 5472741
    Abstract: Copolymers containing incorporated radicals of long-chain alcohols and neutralized carboxyl groups are suitable as retanning agents for leather. They result in an excellent combination of water repellency, softness and grain tightness.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: December 5, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunter Sackmann, Bruno Bomer, Joachim Kochta, Henricus Slaats
  • Optically active sulphur-containing amino acid derivatives, their preparation, their polymerization to give optically active polymers and the use thereof
    Patent number: 5432251
    Abstract: The invention relates to new optically active sulphur-containing amino acid derivatives, a process for their preparation, their polymerisation to give optically active polymers and the use of these optically active polymers as adsorbents for chromatographic separation of racemates into enantiomers.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: July 11, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Grosse-Bley, Bruno Bomer, Rolf Grosser, Dieter Arlt, Walter Lange
  • Optically active sulphur-containing amino acid derivatives, their preparation, their polymerization to give optically active polymers and the use thereof
    Patent number: 5432252
    Abstract: The invention relates to new optically active sulphur-containing amino acid derivatives, a process for their preparation, their polymerization to give optically active polymers and the use of these optically active polymers as adsorbents for chromatographic separation of racemates into enantiomers.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: July 11, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Grosse-Bley, Bruno Bomer, Rolf Grosser, Dieter Arlt, Walter Lange
  • Optically active amino acid sulphoxide and amino acid sulphone derivatives, their preparation, their polymerisation and use as adsorbents for chromatographic resolution of racemates
    Patent number: 5357001
    Abstract: The invention relates to new optically active amino acid derivatives of the general formula (I) ##STR1## in which n, R, R.sub.1, R.sub.2, R.sub.3, X and A have the meaning given in the description, which amino acid derivatives contain sulphoxide or sulphone groups, to two basic synthetic routes for the preparation from sulphur-containing amino acids, to the polymerization of these monomers and to the use of the polymers as optically active adsorbents for chromatographic resolution of racemates to give the enantiomers.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: October 18, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Grosse-Bley, Bruno Bomer, Rolf Grosser, Walter Lange, Franz-Peter Hoever, Dieter Arlt
  • Optically active N-.alpha.-fluoroacryloylamino acid derivatives for the resolution of racemates
    Patent number: 5354884
    Abstract: .alpha.-Fluoro-substituted N-acryloylamino acid derivatives of the formula ##STR1## are used to make polymers optionally for chromatographic resolution of racemates into their enantiomers. The fluorine atom improves performance in many instances.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: October 11, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Grosser, Walter Lange, Bruno Bomer, Dieter Arlt, Dietmar Bielefeldt
  • Optically active bead polymers containing fillers
    Patent number: 5348656
    Abstract: The invention relates to optically active, pressurestable bead polymers containing fillers, and their use as adsorbents for the chromatographic resolution of enantiomeric mixtures (or racemates) into their enantiomers.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: September 20, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Podszun, Bruno Bomer, Rolf Grosser, Walter Lange, Michael Grosse-Bley
  • Optically active sulphur-containing amino acid derivatives, their preparation, their polymerisation to give optically active polymers and the use thereof
    Patent number: 5347042
    Abstract: The invention relates to new optically active sulphur-containing amino acid derivatives, a process for their preparation, their polymerisation to give optically active polymers and the use of these optically active polymers as adsorbents for chromatographic separation of racemates into enantiomers.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: September 13, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Grosse-Bley, Bruno Bomer, Rolf Grosser, Dieter Arlt, Walter Lange
  • Polymer dyestuffs and preparation and use thereof
    Patent number: 5298583
    Abstract: The present invention relates to polymer dyestuffs, i.e. polymer-bound dyestuffs, to a process for their preparation and to their use, for example as markers in analytical procedures. Polymer dyestuffs contain linkable functional groups and are water-soluble under customary conditions of analysis. The polymer portion is usually responsible for this water solubility. The dyestuffs per se are often water-insoluble.
    Type: Grant
    Filed: April 28, 1992
    Date of Patent: March 29, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ludger Heiliger, Hans-Ulrich Siegmund, Herbert Hugl, Antonius Lobberding, Eberhard Kuckert, Bruno Bomer, Thomas Bocker, Gunther Franke
  • Optically active N-.alpha.-fluoroacryloylamino acid polymers for the resolution of racemates
    Patent number: 5292924
    Abstract: .alpha.-Fluoro-substituted N-acryloylamino acid derivatives of the formula ##STR1## are used to make polymers optionally for chromatographic resolution of racemates into their enantiomers. The fluorine atom improves performance in many instances.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Grosser, Walter Lange, Bruno Bomer, Dieter Arlt, Dietmar Bielefeldt
  • Polymeriable optically active (meth) acrylic acid derivatives
    Patent number: 5274167
    Abstract: An optically active N-(meth)acryloyl amino acid amide of the formula ##STR1## in which R is hydrogen or methyl,R.sub.1 represents an optionally substituted alkyl, cycloalkyl, aralkyl, aryl or heteroaryl radical,R.sub.3 represents hydrogen or denotes together with R.sub.1 a tri- or tetramethylene group;X denotes oxygen or a NR.sub.4 -group wherein R.sub.4 represents hydrogen or alkyl or denotes together with R.sub.2 and the nitrogen atom a 5- to 7-membered ring which ring is optionally substituted by the group COO-alkyl (1-6 carbon atoms) or by one or two alkyl radicals (1-4 carbon atoms) andR.sub.2 denotes a strongly space-filling hydrocarbon radical.The amide is polymerized and optionally bound to a support such as silica, and can then be used for the chromatographic separation of racemic mixtures of pharmacologically active compounds.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: December 28, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Lange, Bruno Bomer, Rolf Grosser, Dieter Arlt