Patents by Inventor Renee Polzin

Renee Polzin 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).

  • Patent number: 4145240
    Abstract: A process for the manufacture of an article such as a tray made of laminated plastics having a non-slippery surface comprises the steps of forming on a temporary flexible support a vulcanizable coating comprising a mixture of 100 parts of crude polyethylene chlorosulphonate rubber with a 3-50 parts by weight of heat-hardenable melamine resin, forming of a pack of:(a) a core for the laminate,(b) at least one sheet of melamine impregnated paper or melamine impregnated fabric, heat-hardenable on one face of the core (a),(c) the said temporary support with the said vulcanizable layer being in contact with the component (b); and pressing the pack at 125-155.degree. C. to simultaneously vulcanize the rubber, harden the resin and combine the components into a monolithic laminated structure.
    Type: Grant
    Filed: August 5, 1977
    Date of Patent: March 20, 1979
    Assignee: Plama Plastic Metallic Limited
    Inventor: Renee Polzin