Patents by Inventor Maria-Lidice Soto-Portas

Maria-Lidice Soto-Portas 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 manufacturing microcapsules by interfacial polycondensation with polyoxyalkyleneamine and acid chlorides
    Patent number: 6706397
    Abstract: The present invention relates to a process of obtaining microcapsules, comprising mainly the following stages: preparing a scarcely water-soluble organic phase containing a determined amount of acid chlorides, forming an emulsion of said organic phase in an aqueous phase, adding to the aqueous emulsion an amount of at least one polyoxyalkylene polyamine, reacting the monomers containing the amine and acid chloride functions so as to form a polyamide membrane around the emulsified organic phase, recovering the microcapsules obtained. The present invention also relates to a microcapsule.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: March 16, 2004
    Assignee: Institut Francais du Petrole
    Inventors: Jean-François Argillier, Maria-Lidice Soto-Portas, Nathalie Zydowicz, Françoise Mechin, Angèle Chomard
  • Process for manufacturing microcapsules by interfacial polycondensation with polyoxyalkyleneamine and acid chlorides
    Publication number: 20020158356
    Abstract: The present invention relates to a process of obtaining microcapsules, comprising mainly the following stages:
    Type: Application
    Filed: April 24, 2002
    Publication date: October 31, 2002
    Inventors: Jean-Francois Argillier, Maria-Lidice Soto-Portas, Nathalie Zydowicz, Francoise Mechin, Angele Chomard