Patents by Inventor Monique Calmes

Monique Calmes 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).

  • Chiral polymers for the production of excess enantiomers
    Patent number: 5281750
    Abstract: The present invention relates to chiral supports and to their use in the asymmetric synthesis, deracemization and optical inversion of organic chiral compounds. In particular, the supports are used in combination with thermal equilibration of a species having a reactive achiral portion. Preferably, these supports are obtained by the copolymerization of at least one chiral unit and at least one functionalizing unit or by the polymerization of at least one chiral unit which is a source of said functionalizing unit. Optionally, a crosslinking agent is utilized. By utilizing these supports and thermal equilibration, excess enantiomers can be produced.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: January 25, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Robert Jacquier, Monique Calmes, Jacques Daunis
  • Chiral polymers for the synthesis of pure enantiomers of amino acids
    Patent number: 5280093
    Abstract: The present invention relates to chiral polymers and to their uses for operations of asymmetric synthesis, deracemization and optical inversion.These polymers are characterized in that they comprise:a chiral unita functionalizing unitan optional crosslinking unitApplication to chiral organic synthesis.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: January 18, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Robert Jacquier, Monique Calmes, Jacques Daunis