Patents by Inventor Didier Bourissou

Didier Bourissou 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 POLYLACTONES AND POLYLACTAMS
    Publication number: 20100121021
    Abstract: The present invention relates to a process for the preparation of a lactone or lactam homopolymer, comprising the stage consisting in reacting a lactone or lactam with a nonpolymeric initiator comprising at least one hydroxyl or thiol functional group in a nonchlorinated solvent in the presence of a sulfonic acid of formula R—SO3H. It also relates to the polymer composition thus obtained and to its uses, in particular as antistatic additive.
    Type: Application
    Filed: February 15, 2008
    Publication date: May 13, 2010
    Applicant: Arkema France
    Inventors: Stéphanie Magnet, Christophe Navarro, Stéphanie Gazeau-Bureau, Blanca Martin-Vaca, Didier Bourissou
  • NOVEL METHOD FOR SYNTHESIS OF 1,4-MORPHOLINE-2,5-DIONES
    Publication number: 20100036120
    Abstract: The invention concerns a novel method for synthesis of 1,4-morpholine-2,5-diones of formula (I), wherein: R, R1, R2, R3 and R4 independently represent various radicals, by oxidizing the ketone function of a cyclic compound of formula (II).
    Type: Application
    Filed: January 24, 2007
    Publication date: February 11, 2010
    Applicant: Societe de Conseils de Recherches et D'Applications Scientifiques (S.C.R.A.S.)
    Inventors: Didier Bourissou, Blaca Martin-Vaca, Sylvie Moebs-Sanchez, Coralie Ivens, Roland Cherif-cheikh, Anne-Paula De Sousa Delgado
  • Catalytic lactide and glycolide (co)polymerization system
    Publication number: 20090171066
    Abstract: A catalytic lactide and glycolide copolymerization system comprising a trifluoromethane sulfonate as a catalyst and copolymerization additive and a copolymerization process.
    Type: Application
    Filed: December 11, 2008
    Publication date: July 2, 2009
    Inventors: Blanca Martin-Vaca, Anca Dumitrescu, Lidija Vranicar, Jean-Bernard Cazaux, Didier Bourissou, Roland Cherif-Cheikh, Frederic Lacombe
  • Method for controlled polymerization of o-carboxy anhydrides derived from ?-hydroxy acids
    Patent number: 7528211
    Abstract: The invention concerns a method for preparing poly(-hydroxy acids), the polymerization reaction being performed in controlled manner in the presence of a catalytic system including a base, said base being a 5- or 6-membered aromatic heterocycle comprising at least one endocyclic nitrogen atom, provided that when the base is used alone in the catalytic system, it does not represent pyridine, 2-methylpyridine, 2,6-dimethylpyridine or 2-methoxypyridine. The invention also concerns poly(-hydroxy acids) of formula (IV). Finally, the invention concerns the use of a poly(-hydroxy acid), obtainable by the inventive method, for vectoring active principles or for making biomaterials.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: May 5, 2009
    Assignees: Isochem, Centre de la Recherche Scientifique (CNRS), Universite Paul Sabatier Toulouse III
    Inventors: Didier Bourissou, Olivier Thillaye Du Boullay, Emmanuel Marchal, Bianca Martin-Vaca
  • Method for synthesis of 2,5-dioxane-1,4-diones
    Patent number: 7504524
    Abstract: The invention relates to a novel method for the synthesis of 2,5-dioxane-1,4-diones having formula (I), comprising the oxidation of the ketone function of a cyclic compound having formula (II), wherein R1, R2, R3 and R4 independently represent the hydrogen atom, halo, (C2-C6) alkenyl, (C3-C7)cycloalkyl, cyclohexenyl and a radical having formula —(CH2)m—V—W.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: March 17, 2009
    Assignee: Societe de Conseils de Recherches Et d'Applications Scientifiques
    Inventors: Didier Bourissou, Blanca Martin-Vaca, Frédéric Ben, Magalie Graullier, Roland Cherif-Cheikh, Martin Montes
  • Method for Synthesis of 2,5-Dioxane-1,4-Diones
    Publication number: 20080004453
    Abstract: The invention relates to a novel method for the synthesis of 2,5-dioxane-1,4-diones having formula (I), comprising the oxidation of the ketone function of a cyclic compound having formula (II), wherein R1, R2, R3 and R4 independently represent the hydrogen atom, halo, (C2-C6) alkenyl, (C3-C7)cycloalkyl, cyclohexenyl and a radical having formula —(CH2)m—V—W.
    Type: Application
    Filed: July 25, 2005
    Publication date: January 3, 2008
    Applicant: Societe de Conseils de Recherches et D'Applications Scientifiques
    Inventors: Didier Bourissou, Blanca Martin-Vaca, Frederic Ben, Magalie Graullier, Roland Cherif-Cheikh, Martin Montes
  • Method for controlled polymerization of o-carboxy anhydrides derived from alpha-hydroxy acids
    Publication number: 20070249654
    Abstract: The invention concerns a method for preparing poly(-hydroxy acids), the polymerization reaction being performed in controlled manner in the presence of a catalytic system including a base, said base being a 5- or 6-membered aromatic heterocycle comprising at least one endocyclic nitrogen atom, provided that when the base is used alone in the catalytic system, it does not represent pyridine, 2-methylpyridine, 2,6-dimethylpyridine or 2-methoxypyridine. The invention also concerns poly(-hydroxy acids) of formula (IV). Finally, the invention concerns the use of a poly(-hydroxy acid), obtainable by the inventive method, for vectoring active principles or for making biomaterials.
    Type: Application
    Filed: April 6, 2007
    Publication date: October 25, 2007
    Inventors: Didier Bourissou, Olivier Thillaye Du Boullay, Emmanuel Marchal, Bianca Martin-Vaca
  • Use of catalytic system for lactide and glycolide (co) oligomerization
    Publication number: 20070185304
    Abstract: The use of a catalytic ring-opening lactide and glycolide (co)oligomerization system consisting of a strongly acidic ion-exchange resin-type polymeric catalyst and a (co)oligomerization additive, and a lactide and glycolide (co)oligomerization method using said catalytic system, are disclosed.
    Type: Application
    Filed: March 15, 2005
    Publication date: August 9, 2007
    Inventors: Frederic Ben, Didier Bourissou, Roland Cherif-Cheikh, Anne De Sousa Delgado, Magalie Graullier, Blanca Martin-Vaca
  • Use of zinc derivatives as cyclic ester polymerization catalysts
    Patent number: 7169729
    Abstract: The invention concerns the use of zinc derivatives of general formula (I) wherein: L1 represents a group of formula: —E14(R14)(R?14)(R?14), —E15(R15) (R?15) or —E16(R16); E is an atom of group 15; L2 and L3 independently represent a group of formula: —E14(R14)(R?14)(R?14), —E15(R15)(R?15) or —E16(R16), or together form a chain of formula —L?2—A—L?3—; A represents a saturated or unsaturated chain comprising one, two or three elements of group 14; L?2 and L?3 independently represent a group of formula —E14(R14)(R?14) —E15(R15) or —E16—; E14 is an element of group 14; E15 is an element of group 15; E16 is an element of group 16; R14, R?14, R?14, R15, R?15 and R16 represent various groups, as (co) polymerisation catalysts of cyclic esters
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: January 30, 2007
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Anca Dumitrescu, Martin-Vaca Blanca, Heinz Gornitzka, Didier Bourissou, Jean-Bernard Cazaux, Guy Bertrand
  • Polymerization catalysts
    Patent number: 7101959
    Abstract: A subject of the present invention is new compounds having a lanthanide and having a tridentate ligand, a process for their preparation and their use in particular as polymerization catalysts.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: September 5, 2006
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Use of stannylenes and germylenes as polymerization catalysts for heterocycles
    Patent number: 7084237
    Abstract: The use of stannylenes and germylenes of general formula (I) wherein: M represents a tin or geranium atom; L1 and L2 independently represent a group of formula: -E14(R14) (R?14) (R?14), -E15(R15) (R?15) or -E16(R16)) or together form a chain of formula -L?1-A- L?2; A represents a saturated or unsaturated chain comprising one, two or three elements of group 14; L?1 and L?2, represent, independently, a group of formula: -E14(R14) (R?14)-, E15(R15)- or -E16-; E14 is an element of group 14; E15 is an element of group 15; E16 is an element of group 16; R14, R?14, R?14, R15, R?15 and R16 represent variable groups as polymerization catalysts of heterocycles.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: August 1, 2006
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique
    Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Lactide and glycolide(co)polymerization catalytic system
    Publication number: 20060149030
    Abstract: A catalytic lactide and glycolide copolymerization system comprising a trifluoromethane sulfonate as a catalyst and copolymerization additive and a copolymerization process.
    Type: Application
    Filed: January 19, 2004
    Publication date: July 6, 2006
    Inventors: Blanca Martin-Vaca, Anca Dumitrescu, Lidija Vranicar, Jean-Bernard Cazaux, Didier Bourissou, Roland Cherif-Cheikh, Frederic Lacombe
  • Polymerisation catalysts
    Publication number: 20040209768
    Abstract: A subject of the present invention is new compounds having a lanthanide and having a tridentate ligand, a process for their preparation and their use in particular as polymerization catalysts.
    Type: Application
    Filed: January 20, 2004
    Publication date: October 21, 2004
    Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Polymerisation catalysts
    Patent number: 6790972
    Abstract: The invention relates to new compounds having an element of group 12 and having a tridentate ligand, a process for their preparation and their use in particular as a polymerization catalyst.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: September 14, 2004
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Hanh Nguyen Ngoc, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Use of zinc derivatives as cyclic ester polymerization catalysts
    Publication number: 20040110912
    Abstract: The invention concerns the use of zinc derivatives of general formula (I) wherein: L1 represents a group of formula: —E14(R′14)(R″14), —E15(R15)(R′15) or —E16(R16); E is an atom of group 15; L2 and L3 independently represent a group of formula: —E14(R14)(R′14)(R″14), —E15(R15)(R′15) or —E16(R16), or together form a chain of formula —L′2—A—L′3—; A represents a saturated or unsaturated chain comprising one, two or three elements of group 14; L′2 and L′3 independently represent a group of formula —E14(R14)(R′14) —E15(R15) or —E16—; E14 is an element of group 14; E15 is an element of group 15; E16 is an element of group 16; R14, R′14, R″1, R15, R′15 and R16 represent various groups, as (co) polymerisation catalysts of cyclic esters.
    Type: Application
    Filed: November 3, 2003
    Publication date: June 10, 2004
    Inventors: Anca Dumitrescu, Martin-Vaca Blanca, Heinz Gornitzka, Didier Bourissou, Jean-Bernard Cazaux, Guy Bertrand
  • Polymerisation catalyst
    Patent number: 6716787
    Abstract: A subject of the present invention is new compounds having a lanthanide and having a tridentate ligand, a process for their preparation and their use in particular as polymerization catalysts.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: April 6, 2004
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Use of stannylenes and germylenes as polymerisation catalysts for heterocycles
    Publication number: 20030153717
    Abstract: The invention concerns the use of stannylenes and germylenes of general formula (1) wherein: 1
    Type: Application
    Filed: November 7, 2002
    Publication date: August 14, 2003
    Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux