Patents by Inventor Fabrice Martinet

Fabrice Martinet 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).

  • Method for the continuous preparation of a catalytic system that is used to polymerize a conjugated diene and installation for implementing same
    Patent number: 9056303
    Abstract: The present invention relates to a process for the continuous preparation of a catalytic system that can be used for the polymerization of at least one conjugated diene monomer, said catalytic system being based on at least: a preforming conjugated diene; an organic phosphoric acid salt of one or more rare-earth metal(s), said salt being in suspension in at least one saturated aliphatic or alicyclic and inert hydrocarbon-based solvent; an alkylating agent comprising an alkylaluminium having the formula AlR3 or HAlR2; and a halogen donor comprising an alkylaluminium halide; characterized in that it comprises successively in one line (L): (i) a reaction between the preforming conjugated diene, with the solution of the salt of rare-earth element(s) and the alkylating agent, with the alkylation reaction being carried out for a characteristic minimum period of at least 5 minutes in an alkylation reactor (30) composed of at least one well-mixed dynamic mixer; (ii) the addition of said halogen donor to the mixtur
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: June 16, 2015
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Helene Parola, Fanny Barbotin, Pierre Kiener, Bernard Anselme, Fabrice Martinet
  • Method for the Continuous Preparation of a Catalytic System that is Used to Polymerize a Conjugated Diene and Installation for Implementing Same
    Publication number: 20090182106
    Abstract: The present invention relates to a process for the continuous preparation of a catalytic system that can be used for the polymerization of at least one conjugated diene monomer, said catalytic system being based on at least: a preforming conjugated diene; an organic phosphoric acid salt of one or more rare-earth metal(s), said salt being in suspension in at least one saturated aliphatic or alicyclic and inert hydrocarbon-based solvent; an alkylating agent comprising an alkylaluminium having the formula AlR3 or HAlR2; and a halogen donor comprising an alkylaluminium halide; characterized in that it comprises successively in one line (L): (i) a reaction between the preforming conjugated diene, with the solution of the salt of rare-earth element(s) and the alkylating agent, with the alkylation reaction being carried out for a characteristic minimum period of at least 5 minutes in an alkylation reactor (30) composed of at least one well-mixed dynamic mixer; (ii) the addition of said halogen donor to the mixtur
    Type: Application
    Filed: October 16, 2006
    Publication date: July 16, 2009
    Applicant: MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Helene Parola, Fanny Barbotin, Pierre Kiener, Bernard Anselme, Fabrice Martinet