Patents by Inventor John R. Grasmeder

John R. Grasmeder 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: 5585420
    Abstract: Filled polymer compositions having improved scratch resistance comprise as a major component a polymer resin blend itself comprising 70 to 95% polypropylene homopolymer, and 5 to 30% low density polyethylene, particularly lldpe or vldpe; and 5 to 30% plate like inorganic filler. Optional components include high rubber ethylene-propylene copolymers, fatty acid amides, polyorganosiloxanes and epoxy resins as well as pigments, antioxidants etc. The compositions are formed by mixing the plate like filler and the epoxy resin prior to mixing with another component of the composition which is significantly absorbed by the plate like filler, and subsequently mixing the components of the composition in the melt phase, particularly in a twin screw extruded, and extruding the composition.
    Type: Grant
    Filed: July 19, 1995
    Date of Patent: December 17, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: John R. Grasmeder, Christopher I. Lindsay