Patents by Inventor René ROSSIN

René ROSSIN 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 producing aromatic polyimides
    Patent number: 10745520
    Abstract: The invention relates to a process for producing aromatic polyimides, comprising the following steps: (a) preparation of one or more solid salt(s) by reacting one or more aromatic tetracarboxylic acid(s) and one or more diamine(s) according to a mole ratio ranging from 0.95 to 1.05; (b) drying of the solid salt(s), (c) addition, to the dry salt resulting from step (b), of one or more compound(s) (C) comprising one or more group(s) chosen from a carboxylic acid group, an anhydride group, an ester group and an acyl chloride group; (d) solid-state polymerization of said solid salt(s) in the presence of the compound(s) (C).
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 18, 2020
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE CLAUDE BERNARD LYON1, UNIVERSITE JEAN MONNET SAINT-ETIENNE, Rhodia Operations, Institut National Des Sciences Appliquees De Lyon
    Inventors: Stéphane Jeol, René Rossin, Vincent Mollet, Benjamin Paci, Françoise Fenouillot-Rimlinger, Alain Rousseau
  • PROCESS FOR PRODUCING AROMATIC POLYIMIDES
    Publication number: 20180355109
    Abstract: The invention relates to a process for producing aromatic polyimides, comprising the following steps: (a) preparation of one or more solid salt(s) by reacting one or more aromatic tetracarboxylic acid(s) and one or more diamine(s) according to a mole ratio ranging from 0.95 to 1.05; (b) drying of the solid salt(s), (c) addition, to the dry salt resulting from step (b), of one or more compound(s) (C) comprising one or more group(s) chosen from a carboxylic acid group, an anhydride group, an ester group and an acyl chloride group; (d) solid-state polymerization of said solid salt(s) in the presence of the compound(s) (C).
    Type: Application
    Filed: December 17, 2015
    Publication date: December 13, 2018
    Inventors: Stéphane JEOL, René ROSSIN, Vincent MOLLET, Benjamin PACI, Francoise FENOUILLOT-RIMLINGER, Alain ROUSSEAU
  • Articles obtained from a polymer composition, preparation process and uses
    Publication number: 20160159982
    Abstract: Articles obtained from a polymer composition, preparation process and uses The present invention relates to novel articles formed from a polymer composition, the process for preparing same and also the uses of said articles. More specifically, the present invention targets articles that are molded or extruded from a polymer composition in molten form comprising polyamide 10,6.
    Type: Application
    Filed: July 22, 2014
    Publication date: June 9, 2016
    Applicant: RHODIA OPERATIONS
    Inventors: Stéphane JEOL, Elodie SEIGNOBOS, Olivier CHAUBET, Michel SORIN, René ROSSIN
  • Emulsions Comprising A Dendritic Polymer And Use Of A Dendritic Polymer As An Emulsification Agent
    Publication number: 20070202071
    Abstract: The invention relates to novel emulsions comprising a dendritic polymer. The invention also relates to the use of a dendritic polymer as an emulsification agent. The inventive emulsions are suitable for use in the cosmetics, detergents, paint and coatings industries.
    Type: Application
    Filed: September 29, 2004
    Publication date: August 30, 2007
    Inventors: Mikel Morvan, Alain Senechal, Olivier Anthony, Franck Touraud, Jean-Francois Sassi, Katerina Karagianni, Rene Rossin