Patents by Inventor Hendrikus Pieter Ruinaard

Hendrikus Pieter Ruinaard 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).

  • POLYETHYLENE FOAM
    Publication number: 20100196641
    Abstract: The invention is directed to polyethylene foam based on a blend comprising 95.5-99.5% by weight low density polyethylene and 0.5-4.5% by weight high density polyethylene and a nucleating agent. The invention is also directed to a process for physical foaming of a blend comprising 95.5-99.5% by weight low density polyethylene and 0.5-4.5% by weight high density polyethylene in the presence of a physical blowing agent and a nucleating agent.
    Type: Application
    Filed: May 16, 2008
    Publication date: August 5, 2010
    Applicant: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Roelof Franciscus Gerardus Maria De Vos, Pratip Sengupta, Johan Maria Krist, Hendrikus Pieter Ruinaard