Patents by Inventor Stephane Jeol

Stephane Jeol 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).

  • Adaptive vapor barrier
    Patent number: 10808089
    Abstract: The present invention relates to the use, as water vapour barrier, of a film, of a textile or of a layer of material P, said material P comprising, or even consisting of, at least one copolymer A which is a polyamide of PAXY/XAIS Mn+1/n type or of PAZ/XAISMn+1/n type. It also relates to a construction element comprising a film, a textile or a layer of said material P and a construction material.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: October 20, 2020
    Assignee: RHODIA OPERATIONS
    Inventors: Louise-Anne Fillot, Stephane Jeol
  • STABILIZED POLYAMIDE
    Publication number: 20200190262
    Abstract: An article may include a polyamide composition comprising at least one modified polyamide produced by polymerizing polyamide precursors in a polymerization reactor to form a polyamide and adding, before, during, or at the end of polymerization, a polyhydric alcohol comprising at least three hydroxyl groups to the precursors and/or polyamide in the polymerization reactor.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Applicant: PERFORMANCE POLYAMIDES, SAS
    Inventors: Stephane Jeol, Thierry Badel
  • Stabilized polyamide
    Patent number: 10611882
    Abstract: The present invention relates to the use of a polyhydric alcohol in a polyamide polymerization process for giving the modified polyamide obtained increased stability toward heat, light and/or bad weather. The invention also relates to a polyamide modified in this way, and also to polyamide compositions that may be used for the preparation of specific articles liable to be subjected to high temperatures.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: April 7, 2020
    Assignee: Performance Polyamides, SAS
    Inventors: Stephane Jeol, Thierry Badel
  • Curable composition and process for the manufacture of an epoxy thermoset
    Patent number: 10077332
    Abstract: Curable composition comprising at least one epoxy resin and at least one curing agent selected from derivatives of 5-hydroxymethylfurfural. Curable dispersion, curable prepolymer composition and process for manufacturing it. Process for the manufacture of an epoxy thermoset, epoxy thermoset and method for adhering at least two substrates.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: September 18, 2018
    Assignee: Rhodia Operations
    Inventor: Stephane Jeol
  • Thermoplastic polyimides
    Patent number: 9902809
    Abstract: The present invention relates to thermoplastic polyimides and to the synthesis thereof. The invention relates in particular to a method for manufacturing semi-aromatic thermoplastic polyimides by means of the solid-state polymerization of a solid ammonium carboxylate salt formed from an aliphatic diamine and an aromatic tetracarboxylic acid, thereby enabling powders having controlled particle sizes to be produced.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: February 27, 2018
    Assignee: RHODIA OPERATIONS
    Inventors: Stephane Jeol, Vincent Mollet, Benjamin Paci
  • Polyamide, preparation process and uses
    Patent number: 9637595
    Abstract: The present invention relates to a novel polyamide synthesized from biobased monomers. The novel polyamide comprises the repeat unit of following formula (I). The present invention also relates to the process for the preparation of said polyamide, to its uses and to articles and compositions comprising said polyamide.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: May 2, 2017
    Assignee: RHODIA OPERATIONS
    Inventors: Stephane Jeol, Floryan Decampo, Peng Li
  • Thermoplastic copolyimides
    Patent number: 9403946
    Abstract: The present invention relates to semiaromatic and semicrystalline thermoplastic polyimides obtained by polymerization of at least one aromatic compound comprising two anhydride functions and/or carboxylic acid and/or ester derivatives thereof and a diamine comprising between 13 and 22 carbon atoms. These polyimides may be converted into plastic articles by various methods, such as injection-molding.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: August 2, 2016
    Assignee: RHODIA OPERATIONS
    Inventor: Stephane Jeol
  • ADAPTIVE VAPOR BARRIER
    Publication number: 20160152784
    Abstract: The present invention relates to the use, as water vapour barrier, of a film, of a textile or of a layer of material P, said material P comprising, or even consisting of, at least one copolymer A which is a polyamide of PAXY/XAIS Mn+1/n type or of PAZ/XAISMn+1/n type. It also relates to a construction element comprising a film, a textile or a layer of said material P and a construction material.
    Type: Application
    Filed: July 21, 2014
    Publication date: June 2, 2016
    Inventors: Louise-Anne FILLOT, Stephane JEOL
  • Curable composition and process for the manufacture of an epoxy thermoset
    Publication number: 20160152764
    Abstract: Curable composition comprising at least one epoxy resin and at least one curing agent selected from derivatives of 5-hydroxymethylfurfural. Curable dispersion, curable prepolymer composition and process for manufacturing it. Process for the manufacture of an epoxy thermoset, epoxy thermoset and method for adhering at least two substrates.
    Type: Application
    Filed: July 3, 2014
    Publication date: June 2, 2016
    Inventor: Stephane JEOL
  • POLYIMIDES, PROCESSES FOR PRODUCING SAID POLYIMIDES AND ARTICLES OBTAINED FROM SAID POLYIMIDES
    Publication number: 20160096928
    Abstract: The present invention relates to (co)polymers comprising at least one imide function, making use of at least one diamine chosen from 2,5-bis(aminomethyl)furan and 2,5-bis(aminomethyl)tetrahydrofuran, or diisocyanate equivalents thereof. These (co)polymers can be converted into articles by various methods.
    Type: Application
    Filed: April 22, 2014
    Publication date: April 7, 2016
    Inventor: Stephane JEOL
  • NOVEL POLYAMIDE, PREPARATION PROCESS AND USES
    Publication number: 20150337083
    Abstract: The present invention relates to a novel polyamide synthesized from biobased monomers. The novel polyamide comprises the repeat unit of following formula (I). The present invention also relates to the process for the preparation of said polyamide, to its uses and to articles and compositions comprising said polyamide.
    Type: Application
    Filed: January 6, 2014
    Publication date: November 26, 2015
    Inventors: Stephane JEOL, Floryan DECAMPO, Peng LI
  • THERMOPLASTIC POLYIMIDES
    Publication number: 20140228513
    Abstract: The present invention relates to thermoplastic polyimides and to the synthesis thereof. The invention relates in particular to a method for manufacturing semi-aromatic thermoplastic polyimides by means of the solid-state polymerization of a solid ammonium carboxylate salt formed from an aliphatic diamine and an aromatic tetracarboxylic acid, thereby enabling powders having controlled particle sizes to be produced.
    Type: Application
    Filed: September 18, 2012
    Publication date: August 14, 2014
    Applicant: RHODIA OPERATIONS
    Inventors: Stephane Jeol, Vincent Mollet, Benjamin Paci
  • NOVEL POLYAMIDEIMIDES AND PREPARATION AND COMPOSITIONS COMPRISED THEREOF
    Publication number: 20110160407
    Abstract: Novel semi-aromatic polyamideimides are prepared by melt polymerization of at least one organic compound having carboxyl groups, of at least one diamine compound and, optionally, of at least one diacid compound; such novel polyamideimides are formulated into compositions based on a thermoplastic matrix.
    Type: Application
    Filed: June 5, 2009
    Publication date: June 30, 2011
    Applicant: RHODIA OPERATIONS
    Inventors: Franck Touraud, Veronique Bossennec, Stephane Jeol