Patents by Inventor Coenraad Spaans

Coenraad Spaans 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).

  • Publication number: 20070092742
    Abstract: A sheet material to be made into an object by an industrial forming process, the material comprising a metal substrate and a polymer coating system bonded thereto, the coating system comprising—an inner layer comprising PET, modified PET and/or combinations thereof, as a layer for bonding the system to the substrate;—a layer comprising PET, PBT and/or combinations thereof, as a barrier layer;—an outer layer comprising PET; wherein the outer layer has non-tacking properties so as to avoid sticking of the material to the forming tools at normal operation temperatures in the industrial forming process.
    Type: Application
    Filed: March 29, 2004
    Publication date: April 26, 2007
    Applicant: CORUS STAAL BV
    Inventors: Coenraad Spaans, Adrianus Den Hartog
  • Publication number: 20060243626
    Abstract: Use of a polymer material as a product contact layer in or on packaging for a product, wherein the polymer material is made from a blend of a polyester resin and an apolar resin such as a polyolefin and has improved product-release properties as compared to a polymer material made from essentially the polyester resin.
    Type: Application
    Filed: February 18, 2004
    Publication date: November 2, 2006
    Applicant: Corus STaal BV
    Inventors: Coenraad Spaans, Lene Hviid, Cornelis Waringa, Johannes Dommershuijzen
  • Publication number: 20050008705
    Abstract: The present invention relates to new hydrogels with improved mechanical properties and methods of their preparation. The hydrogels are formed from hydrophilic polymers having function hydroxyl groups and have low elasticity modulus typically less than about 10 kPa, a tensile strength above 1 Mpa, an elongation above 50% which makes suitable as medical implants, in particular intraocular lenses. The hydrogels are prepared by a crosslinking method with a comparatively low concentration of hydrophilic polymer of a sufficiently high molecular weight dissolved in a good solvent.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 13, 2005
    Inventors: Albert Pennings, Coenraad Spaans, Jacqueline deGroot