Patents by Inventor Marie-Francoise Morizur

Marie-Francoise Morizur 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).

  • Bitumen compositions and a process for their preparation
    Patent number: 5830925
    Abstract: The invention provides a process for preparing a bitumen composition comprising blowing a mixture with an oxygen-containing gas which mixture comprises a bitumen having a penetration of less than 300 and a thermoplastic rubber which is present in an amount of less than 5% w, based on total mixture; bitumen compositions obtainable by such process; and the use of such bitumen compositions in asphalt mixtures for road applications.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: November 3, 1998
    Assignee: Shell Oil Company
    Inventors: Jacques Chion, Marie-Francoise Morizur
  • Bitumen compositions
    Patent number: 5665153
    Abstract: Bitumen compositions comprising bitumen and at least one succinic anhydride derivative contained in the bitumen, processes for their preparation and their use in bitumen emulsions for road applications, e.g. surface dressings.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: September 9, 1997
    Assignee: Shell Oil Company
    Inventors: Jean-Claude Desaix, Marie-Francoise Morizur, Denis Rabiot