Patents by Inventor Marie Abiuso

Marie Abiuso 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 preparation of resins with a primary amine or guanidine function, and resins thus obtained
    Patent number: 5973080
    Abstract: The process includes the reaction of a chloro-formamidinium chloride with a polystyrene-divinylbenzene resin functionalized with primary amine groups. The resins which can be obtained according to this process may in particular have a spacer arm of general formula (IV): ##STR1## with X representing oxygen or sulphur and m being equal to 1 or 2. This spacer arm bears at its end, on the right, a primary amine group or a guanidine group.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: October 26, 1999
    Assignee: Elf Aquitaine Production
    Inventors: Pierre Le Perchec, Marie Abiuso, Emmanuel Arretz
  • Resins with a primary amine or guanidine function
    Patent number: 5817716
    Abstract: The process includes the reaction of a chloroformamidinium chloride with a polystyrene-divinylbenzene resin functionalized with primary amine groups. The resins which can be obtained according to this process may in particular have a spacer arm of general formula (IV):--CH.sub.2 --(--X--CH.sub.2 --CH.sub.2 --).sub.m -- (IV)with X representing oxygen or sulphur and m being equal to 1 or 2. This spacer arm bears at its end, on the right, a primary amine group or a guanidine group.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: October 6, 1998
    Assignee: Elf Aquitaine Production
    Inventors: Pierre Le Perchec, Marie Abiuso, Emmanuel Arretz
  • Process for the preparation of resins with a primary amine or guanidine function, and resins thus obtained
    Patent number: 5726253
    Abstract: The process includes the reaction of a chloroformamidinium chloride with a polystyrene-divinylbenzene resin functionalized with primary amine groups. The resins which can be obtained according to this process may in particular have a spacer arm of general formula (IV):--CH.sub.2 (--X--CH.sub.2 --CH.sub.2 --(.sub.m -- (IV)with X representing oxygen or sulphur and m being equal to 1 or 2. This spacer arm bears at its end, on the right, a primary amine group or a guanidine group.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: March 10, 1998
    Assignee: Elf Aquitaine Production
    Inventors: Pierre Le Perchec, Marie Abiuso, Emmanuel Arretz