Patents by Inventor Nicolas Jacquel

Nicolas Jacquel 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).

  • Patent number: 12134680
    Abstract: A crystallization method that comprises a step of providing a polyester comprising at least one 1,4:3,6-dianhydrohexitol unit, and a step of crystallizing this semi-crystalline polyester at a pressure of at least 600 mbar absolute. The method according to the invention makes it possible to strongly limit, or even eliminate, the phenomenon of polyester expansion during crystallization. Advantageously, the elimination of the expansion phenomenon through pressure conditions implemented according to the invention thus makes it possible to dispense with obtaining very fragile empty spheres that break when agitated and thus cause the formation of undesirable fine particles.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: November 5, 2024
    Assignee: Roquette Freres
    Inventors: Nicolas Jacquel, René Saint-Loup, Audrey Dausque, Sébastien Naudin, Nicolas Descamps
  • Patent number: 12098244
    Abstract: The invention relates to a process for producing semi-aromatic polyethers based on an aliphatic diol, to semi-aromatic polyethers based on an aliphatic diol obtained by said process, and to the use of said semi-aromatic polyethers based on an aliphatic diol for manufacturing membranes, manufactured parts and coatings.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: September 24, 2024
    Assignee: Roquette Freres
    Inventors: Nicolas Jacquel, Sarah Degras, Régis Mercier
  • Patent number: 12037453
    Abstract: The present invention relates to a polymer of the aromatic polyether type, containing a biosourced furan diol, to a method for producing said polymer, and to the use of said polymer for producing membranes.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: July 16, 2024
    Assignees: Roquette Freres, Universite Claude Bernard Lyon 1, Centre National de la Recherche Scientifique
    Inventors: Nicolas Jacquel, Sarah Degras, Régis Mercier, Thierry Delaunay
  • Publication number: 20240092796
    Abstract: The present invention relates to a product of internal dehydration of sorbitol, characterized in that it has a total residual nitrogen atom content of between 0.01 ppm and 150 ppm, preferably of between 0.02 ppm and 20 ppm, more preferably of between 0.05 ppm and 10 ppm, and, more preferentially, of between 0.07 ppm and 5 ppm, this residual content being expressed as dry weight relative to the total dry weight of said product, and in that it has a total residual sulphur atom content of between 0.0001 ppm and 100 ppm, preferably between 0.0002 ppm and 50 ppm, more preferably between 0.0004 ppm and 30 ppm, and more preferentially, between 0.0008 ppm and 20 ppm, this total residual content being expressed in dry weight relative to the dry weight of said product; a method for purifying such a product and a polymer comprising a unit corresponding to said product.
    Type: Application
    Filed: November 19, 2021
    Publication date: March 21, 2024
    Inventors: Nicolas JACQUEL, René SAINT-LOUP, Théodore VANBESIEN
  • Patent number: 11866546
    Abstract: A thermoplastic polyester, and in particular a thermoplastic polyester including at least one 1,4:3,6-dianhydro-L-iditol unit (A), at least one linear aliphatic diol unit (B), at least one aromatic dicarboxylic unit (C), the thermoplastic polyester having a reduced viscosity in solution (25° C.; phenol (50 wt. %):ortho-dichlorobenzene (50 wt. %); 5 g of polyester/L) greater than 25 mL/g. A method for preparing such a polyester, a composition including the same and the use of the thermoplastic polyester for the production of finished or semi-finished plastic articles. The thermoplastic polyester is advantageous in that it has a particularly high incorporation rate of 1,4:3,6-dianhydro-L-iditol (A) units, at least greater than 85%, and most specifically at least greater than 90%.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: January 9, 2024
    Assignee: ROQUETTE FRERES
    Inventors: René Saint-Loup, Nicolas Jacquel
  • Patent number: 11859046
    Abstract: The invention relates to a thermoplastic polymer comprising at least one 1,4:3,6-dianhydrohexitol unit (A), at least one alicyclic diol unit (B) other than the 1,4:3,6-dianhydrohexitol units (A) and at least one high-viscosity terephthalic acid unit (C).
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: January 2, 2024
    Assignee: ROQUETTE FRERES
    Inventors: Nicolas Jacquel, René Saint-Loup, Jean-Pierre Pascault, Françoise Fenouillot, Alain Rousseau
  • Patent number: 11718765
    Abstract: The present invention relates to a crosslinkable composition for forming a polyurethane coating on different types of substrate. The present invention relates in particular to a polyurethane composition comprising isosorbide as a diol chain extender, and to the polyurethane coating obtained from this composition.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: August 8, 2023
    Assignee: Roquette Freres
    Inventors: Nicolas Jacquel, René Saint-Loup, Jean-Pierre Pascault, Héloïse Blache, Alain Rousseau, Françoise Mechin, Etienne Fleury
  • Publication number: 20230050671
    Abstract: The present invention relates to the field of polymers, in particular that of polyester fibers, and relates more specifically to a process for manufacturing a colored synthetic fiber, and to the uses thereof. More particularly, the present invention relates to a process for manufacturing a colored synthetic fiber from a semicrystalline thermoplastic polyester based on isosorbide, said fiber being colored by means of an aqueous solution of at least one disperse dye. The present invention also relates to a fiber colored by a disperse dye and also to the use thereof in the field of furnishings, textiles or sporting goods. The process according to the invention makes it possible to obtain colored synthetic fibers having improved quality and improved stability of the dyeing.
    Type: Application
    Filed: December 10, 2020
    Publication date: February 16, 2023
    Inventors: Hélène AMEDRO, Nicolas JACQUEL, René SAINT-LOUP
  • Publication number: 20230013441
    Abstract: A method for manufacturing a polyester containing at least one 1,4:3,6-dianhydrohexitol unit, including a step of introducing, into a reactor, monomers comprising at least one monomer (A) which is a diacid or a diester and at least one monomer (B) which is a 1,4:3,6-dianhydrohexitol, a step of introducing, into the reactor, a catalytic system comprising either a catalyst comprising the element germanium and a catalyst comprising the element tin, or a catalyst comprising the elements germanium and tin or a mixture of said catalysts, a step of polymerizing the monomers to form the polyester, a step of recovering a polyester composition comprising the polyester and the catalytic system. The invention also relates to a polyester composition containing a catalytic system and the use of same to reduce the colouring of the polyester.
    Type: Application
    Filed: December 17, 2020
    Publication date: January 19, 2023
    Inventors: René SAINT-LOUP, Nicolas JACQUEL, Gabriel DEGAND
  • Publication number: 20220267514
    Abstract: The invention relates to the field of polymers and concerns a method for the crystallization of polyester. More particularly, it relates to a crystallization method that comprises a step of providing a polyester comprising at least one 1,4:3,6-dianhydrohexitol unit, and a step of crystallizing said semi-crystalline polyester, said method being characterized in that the crystallization step is performed at a pressure of at least 600 mbar absolute. The method according to the invention makes it possible to strongly limit, or even eliminate, the phenomenon of polyester expansion during crystallization. Advantageously, the elimination of the expansion phenomenon through pressure conditions implemented according to the invention thus makes it possible to dispense with obtaining very fragile empty spheres that break when agitated and thus cause the formation of undesirable fine particles.
    Type: Application
    Filed: May 29, 2019
    Publication date: August 25, 2022
    Inventors: Nicolas Jacquel, René Saint-Loup, Audrey Dausque, Sébastien Naudin, Nicolas Descamps
  • Publication number: 20220177648
    Abstract: The invention relates to a process for producing semi-aromatic polyethers based on an aliphatic diol, to semi-aromatic polyethers based on an aliphatic diol obtained by said process, and to the use of said semi-aromatic polyethers based on an aliphatic diol for manufacturing membranes, manufactured parts and coatings.
    Type: Application
    Filed: April 3, 2020
    Publication date: June 9, 2022
    Inventors: Nicolas JACQUEL, Sarah DEGRAS, Régis MERCIER
  • Publication number: 20220002479
    Abstract: The invention relates to the field of polymers and relates to a process for crystallizing polyester. More particularly, this is a crystallization process comprising a step of provision of a polyester comprising at least one 1,4:3,6-dianhydrohexitol unit, a step of provision of a coalescence-preventing additive, and a step of crystallization of said semicrystalline polyester. The process according to the invention makes it possible to greatly limit, indeed even to eliminate, the phenomenon of agglomeration of the polyester granules during the crystallization.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 6, 2022
    Inventors: Nicolas JACQUEL, René SAINT-LOUP, Audrey DAUSQUE, Nicolas DESCAMPS, Hélène AMEDRO, Nicolas CAIVEAU, Sébastien NAUDIN
  • Publication number: 20220002476
    Abstract: The invention relates to a method for preparing a polyester of the poly(1,4:3,6-dianhydrohexitol-cocyclohexylene terephthalate) type using at least one nucleating agent. The invention also relates to a composition comprising a polyester of the poly(1,4:3,6-dianhydrohexitol-cocyclohexylene terephthalate) type and at least one nucleating agent as well as to a finished or semi-finished plastic article comprising the composition according to the invention.
    Type: Application
    Filed: October 2, 2019
    Publication date: January 6, 2022
    Inventors: René SAINT-LOUP, Nicolas JACQUEL, Nicolas DESCAMPS
  • Publication number: 20210340332
    Abstract: The present invention relates to a method for producing a block copolymer of the poly-ethersulfone type containing a biosourced diol, to a block copolymer that can be obtained by said method, and to the use of said block copolymer for producing membranes.
    Type: Application
    Filed: August 20, 2019
    Publication date: November 4, 2021
    Inventors: Nicolas JACQUEL, Sarah DEGRAS, Régis MERCIER, Thierry DELAUNAY
  • Publication number: 20210317265
    Abstract: The present invention relates to a polymer of the aromatic polyether type, containing a biosourced furan diol, to a method for producing said polymer, and to the use of said polymer for producing membranes.
    Type: Application
    Filed: August 20, 2019
    Publication date: October 14, 2021
    Inventors: Nicolas JACQUEL, Sarah DEGRAS, Régis MERCIER, Thierry DELAUNAY
  • Patent number: 11130860
    Abstract: A thermoplastic composite comprising a thermoplastic polymer matrix comprising an amorphous polyester containing 1,4: 3,6-dianhydrohexitol units, an alicyclic diol and terephthalic acid, wherein diol component comprises 1,4:3,6-dianhydrohexitol and alicyclic diol in ratio from 0.32 to 0.75; and thermoplastic fibers comprising a semi-crystalline polyester containing 1,4: 3,6-dianhydrohexitol units, an alicyclic diol and terephthalic acid, wherein diol component comprises 1,4:3,6-dianhydrohexitol and alicyclic diol in ratio from 0.05 to 0.30 are disclosed. Methods for producing the polymer composite are also disclosed.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: September 28, 2021
    Assignee: ROQUETTE FRERES
    Inventors: Hélène Amedro, Jean-Marc Corpart, Nicolas Jacquel, René Saint-Loup
  • Publication number: 20210070930
    Abstract: The invention relates to the field of polymers, particularly a thermoplastic polyester having an improved resistance to the cracking phenomenon, to the production method thereof, and to the use of same for producing plastic items. The thermoplastic polyester comprises at least one 1,4:3,6-dianhydrohexitol motif (A), at least one diol motif (B), other than the 1,4:3,6-dianhydrohexitol motif (A), at least one aromatic dicarboxylic acid motif (C) and at least one branching agent, and has a reduced viscosity in solution of a minimum of 0.75 dL/g and a maximum of 1.5 dL/g. Said thermoplastic polyester is advantageous in that it is particularly resistant to the phenomenon of cracking and also has improved esterification and polycondensation times during the production method thereof.
    Type: Application
    Filed: February 19, 2019
    Publication date: March 11, 2021
    Inventors: Nicolas JACQUEL, Hélène AMEDRO, René SAINT-LOUP
  • Publication number: 20200339834
    Abstract: The present invention relates to a crosslinkable composition for forming a polyurethane coating on different types of substrate. The present invention relates in particular to a polyurethane composition comprising isosorbide as a diol chain extender, and to the polyurethane coating obtained from this composition.
    Type: Application
    Filed: October 26, 2018
    Publication date: October 29, 2020
    Inventors: Nicolas JACQUEL, René SAINT-LOUP, Jean-Pierre PASCAULT, Héloïse BLACHE, Alain ROUSSEAU, Françoise MECHIN, Etienne FLEURY
  • Publication number: 20200339835
    Abstract: The present invention relates to a crosslinkable composition for forming a polyurethane coating on different types of substrates. The present invention relates in particular to a polyurethane composition with a high biosourced monomer content, comprising isosorbide as a diol chain extender and a pentamethylene diisocyanate trimer; the invention also relates to the polyurethane coating obtained from this composition.
    Type: Application
    Filed: October 26, 2018
    Publication date: October 29, 2020
    Inventors: Nicolas JACQUEL, René SAINT-LOUP, Jean-Pierre PASCAULT, Héloïse BLACHE, Alain ROUSSEAU, Françoise MECHIN, Etienne FLEURY
  • Publication number: 20200255590
    Abstract: A thermoplastic polyester, and in particular a thermoplastic polyester including at least one 1,4:3,6-dianhydro-L-iditol unit (A), at least one linear aliphatic diol unit (B), at least one aromatic dicarboxylic unit (C), the thermoplastic polyester having a reduced viscosity in solution (25° C.; phenol (50 wt. %): ortho-dichlorobenzene (50 wt. %); 5 g of polyester/L) greater than 25 mL/g. A method for preparing such a polyester, a composition including the same and the use of the thermoplastic polyester for the production of finished or semi-finished plastic articles. The thermoplastic polyester is advantageous in that it has a particularly high incorporation rate of 1,4:3,6-dianhydro-L-iditol (A) units, at least greater than 85%, and most specifically at least greater than 90%.
    Type: Application
    Filed: October 10, 2018
    Publication date: August 13, 2020
    Applicant: ROQUETTE FRERES
    Inventors: René SAINT-LOUP, Nicolas JACQUEL