Patents by Inventor Daniel Fontanel

Daniel Fontanel 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).

  • Granules and pellets for the modification of polycondensates which can be shaped, as well as the process for obtaining these granules and pellets and shaped articles thus obtained
    Patent number: 4076667
    Abstract: The present invention relates to masterbatches in the form of granules or pellets, as well as the process for obtaining these.These granules or pellets consist of:At least 37.5% of polycondensates serving as a carrier, of which at least a part consists of the same polycondensate as that which is to be shaped, in the form of a powder of particle size at least 50 microns,From 12.5 to 40% of a binder of melting point 70.degree. - 100.degree. C which is compatible with the polycondensate to be shaped, andUp to 50% of at least one compound intended to modify the polycondensate to be shaped.They are used with advantage for modifying polycondensates, particularly polyamides and polyesters, intended for spinning or moulding.
    Type: Grant
    Filed: March 12, 1976
    Date of Patent: February 28, 1978
    Assignee: Rhone-Poulenc Textile
    Inventors: Daniel Fontanel, Jean Rampin