Patents by Inventor Jean-Pierre Gazonnet

Jean-Pierre Gazonnet 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).

  • Polyamide masterbatches
    Patent number: 4331776
    Abstract: Masterbatches useful for lightweight polyamide molding or extrusion comprise polyamide, a pore-forming agent and a fusible binder that is compatible with the polyamide. Admixture of the masterbatch and granular polyamide polymer results in a polyamide composition which can be molded or extruded into a product having increased homogeneity and expansion uniformity.
    Type: Grant
    Filed: May 20, 1981
    Date of Patent: May 25, 1982
    Assignee: Rhone-Poulenc Industries
    Inventor: Jean-Pierre Gazonnet