Patents by Inventor Per M. Hansen

Per M. Hansen 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).

  • Polypropylene materials grafted with an epoxyalkyl acrylate compound
    Patent number: 5561196
    Abstract: This invention relates to grafted polypropylene compositions and a process for their production. More particularly, the invention relates to polypropylene compositions based on polypropylene homopolymers, and copolymers of propylene with ethylene and/or butadiene, grafted with certain epoxy-alkyl acrylate compounds, and a process for their production. The grafted polypropylene compositions are useful especially as compatibilizers for addition to other polymer compositions.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: October 1, 1996
    Assignee: Den norske stats oljeselskap a.s.
    Inventors: Hans K. Kotlar, Per M. Hansen