Patents Assigned to EKA Chemicals
  • Optically active support materials, their method of preparation and their uses
    Patent number: 7597804
    Abstract: This invention relates to optically active support materials which include one or more esters and/or one or more carbamates and/or one or more mixed ester and carbamate compounds of polysaccharide or oligosaccharide, and an organic and/or inorganic substrate.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: October 6, 2009
    Assignee: EKA Chemicals
    Inventors: Raphaël Duval, Hubert Leveque