Patents by Inventor Bernard Regnault

Bernard Regnault 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).

  • Process for the regeneration of polymer from waste
    Patent number: 4255295
    Abstract: A process is disclosed for the production of a polymer of good spinnability from waste. It consists in compressing the finely chopped waste by means of a screw until a bulk density of at least 500 kg/m.sup.3 is reached, introducing same into a double screw degassing extruder, and subjecting the molten polymer to a post-condensation operation. The polymer obtained can be used as such in many textile applications and in plastics.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: March 10, 1981
    Assignee: Rhone-Poulenc-Textile
    Inventors: Bernard Regnault, Pierre Revol