Patents Assigned to Titmus Eurocon Kontaktlinsen GmbH KG & Co.
  • Contact lens and compositions
    Patent number: 4463148
    Abstract: A soft contact lens having in preferred embodiment an elliptical inside surface which has a numerical eccentricity of 0.2 to 0.5 and a zenith radium of curvature of 8.0 to 8.4 mm. It preferably consists of a copolymer comprising of 50% to 90% hydroxyethyl-methacrylate (HEMA) by weight, 2% to 20% one or more unsaturated carboxylic acids, 2% to 20% one or more base monomers, 5% to 25% aliphatic acrylate or methacrylate, and 0.1% to 1% of a dialkylene-glycol-dimethacrylate crosslinker.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: July 31, 1984
    Assignee: Titmus Eurocon Kontaktlinsen GmbH KG & Co.
    Inventors: Peter Hofer, Ulrich Muller, Manfred Barenz, Horst Schafer, Wolfgang Muller-Lierheim