Patents by Inventor Didier Lagneaux
Didier Lagneaux 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).
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Patent number: 9453107Abstract: The object of the invention is a method for preparing a polyamide from one or several monomers adapted for the preparation of polyamide characterized in that the selected monomer(s), is(are) introduced without any preliminary reaction and without any preliminary preparation of the corresponding salt, in an extruder including at least two conveying screws rotating co-rotatively and in that all the reaction and polycondensation steps, initially starting from the selected monomer(s), and giving the possibility of ending up with the desired polyamide, are conducted in an extruder including at least two conveying screws rotating co-rotatively, and polycondensation is achieved by carrying out at least two operations for discharging the by-product(s) formed by the polycondensation reaction.Type: GrantFiled: July 25, 2013Date of Patent: September 27, 2016Assignee: SETUP PERFORMANCEInventors: Didier Lagneaux, Jerome Gimenez, Anne-Carine Brosse, Laurent Goujard, Henri Sautel
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Publication number: 20150191569Abstract: The object of the invention is a method for preparing a polyamide from one or several monomers adapted for the preparation of polyamide characterized in that the selected monomer(s), is(are) introduced without any preliminary reaction and without any preliminary preparation of the corresponding salt, in an extruder including at least two conveying screws rotating co-rotatively and in that all the reaction and polycondensation steps, initially starting from the selected monomer(s), and giving the possibility of ending up with the desired polyamide, are conducted in an extruder including at least two conveying screws rotating co-rotatively, and polycondensation is achieved by carrying out at least two operations for discharging the by-product(s) formed by the polycondensation reaction.Type: ApplicationFiled: July 25, 2013Publication date: July 9, 2015Inventors: Didier Lagneaux, Jérôme Gimenez, Anne-Carine Brosse, Laurent Goujard, Henri Sautel
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Patent number: 8916628Abstract: A novel starch-based composition includes: (a) at least 45% by weight of at least one soluble starch, (b) at most 55% by weight of at least one non-biodegradable, non-amylaceous polymer, and (c) a bonding agent carrying at least two functional groups capable of reacting with molecules carrying functions including an active hydrogen, these amounts being expressed with respect to solids and relative to the sum of (a) and (b). A method for preparing such a starch-based composition and a thermoplastic composition prepared by heating such a composition are also described.Type: GrantFiled: January 29, 2009Date of Patent: December 23, 2014Assignee: Roquette FreresInventors: Leon Mentink, Didier Lagneaux, Jerome Gimenez
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Patent number: 8809424Abstract: Process for preparing a composition based on a synthetic polymer includes: introducing, into a reactor containing a softened or molten synthetic polymer, a non-plasticized starchy component and a plasticizer of the latter; and kneading the mixture obtained under conditions sufficient to obtain the plasticization of the starchy component by the plasticizer, and a homogeneous mixture of the synthetic polymer and of the plasticized starchy component. The reactor may especially be a co-rotating or counter-rotating single-screw or twin-screw extruder, for example a co-rotating twin-screw extruder. The synthetic polymer may advantageously be chosen from the group including polyethylenes (PE) and polypropylenes (PP), which are functionalized or unfunctionalized, polyamides (PA), thermoplastic polyurethanes (TPU), styrene-ethylene-butylene-styrene (SEBS) copolymers, preferably that are functionalized, amorphous polyethylene terephthalates (PETG) and blends thereof.Type: GrantFiled: July 17, 2009Date of Patent: August 19, 2014Assignee: Roquette FreresInventors: Thierry Feron, Rene Saint Loup, Jerome Gimenez, Didier Lagneaux, Henri Sautel
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Publication number: 20130245173Abstract: A processing aid is used in the processing of thermoplastic polyurethanes to give various articles including a self-supporting film. The processing aid contains a) 10-50% by weight of hydrophobized, at least partially aggregated, metal oxide particles selected from the group consisting of aluminium oxide, silicon dioxide and mixtures thereof, b) 20-75% by weight of one or more thermoplastic polyurethanes, c) 0.5-25% by weight of one or more isocyanates, d) 0.5-15% by weight of one or more compounds which act as lubricant and dispersant, the sum of the constituents a) to d) amounting to at least 90% by weight, based on a total weight of said processing aid.Type: ApplicationFiled: May 13, 2013Publication date: September 19, 2013Applicant: Evonik Degussa GmbHInventors: Thomas Welker, Ulrich Boes, Frank Menzel, Dieter Kuhn, Uwe Schachtely, Didier Lagneaux, Henri Sautel
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Publication number: 20130020744Abstract: Processing aid comprising a) 10-50% by weight of hydrophobized, at least partially aggregated, metal oxide particles b) 20-75% by weight of one or more thermoplastic polyurethanes, c) 0.5-50 by weight of one or more prepolymers comprising isocyanate groups the sum of the constituents a) to c) amounting to at least 80% by weight, based on the processing aid.Type: ApplicationFiled: March 21, 2011Publication date: January 24, 2013Applicant: Evonik Degussa GmbHInventors: Thomas Welker, Frank Menzel, Dieter Kuhn, Uwe Schachtely, Uwe Kinzlinger, Ulrich Boes, Didier Lagneaux, Henri Sautel
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Publication number: 20120289629Abstract: The present invention relates to a method for preparing novel thermoplastic amylaceous compositions, as well as to such thermoplastic amylaceous compositions.Type: ApplicationFiled: January 14, 2011Publication date: November 15, 2012Applicant: Roquette FreresInventors: René Saint-Loup, Jérôme Gimenez, Didier Lagneaux
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Publication number: 20110118390Abstract: Process for preparing a composition based on a synthetic polymer includes: introducing, into a reactor containing a softened or molten synthetic polymer, a non-plasticized starchy component and a plasticizer of the latter; and kneading the mixture obtained under conditions sufficient to obtain the plasticization of the starchy component by the plasticizer, and a homogeneous mixture of the synthetic polymer and of the plasticized starchy component. The reactor may especially be a co-rotating or counter-rotating single-screw or twin-screw extruder, for example a co-rotating twin-screw extruder. The synthetic polymer may advantageously be chosen from the group including polyethylenes (PE) and polypropylenes (PP), which are functionalized or unfunctionalized, polyamides (PA), thermoplastic polyurethanes (TPU), styrene-ethylene-butylene-styrene (SEBS) copolymers, preferably that are functionalized, amorphous polyethylene terephthalates (PETG) and blends thereof.Type: ApplicationFiled: July 17, 2009Publication date: May 19, 2011Applicant: ROQUETTE FRERESInventors: Thierry Feron, Rene Saint Loup, Jerome Gimenez, Didier Lagneaux, Henri Sautel
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Publication number: 20110086949Abstract: A thermoplastic and/or elastomer composition includes: at least 50 wt % and 99.95 wt % at most of a starchy composition (a) including at least one starch; at least 0.05 wt % and 50 wt % at most of a nanometric product (b) including particles having at least one dimension of 0.1 to 500 nanometers and selected from mixed products containing at least one lamellar clay and at least one cationic oligomer or cationic synthetic polymer, organic, mineral or mixed nanotubes, organic, mineral or mixed nanocrystals and nanocrystallites, organic, mineral or mixed nanobeads and nanospheres customized into clusters or agglomerated, and mixtures of these nanometric products, the percentage being expressed in dry weight and added to the sum in dry weight of (a) and (b); and at least one non-starchy polymer (c).Type: ApplicationFiled: June 12, 2009Publication date: April 14, 2011Applicant: ROQUETTE FRERESInventors: Léon Mentink, Jérôme Gimenez, Didier Lagneaux
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Publication number: 20100311905Abstract: A method for preparing a starch-based thermoplastic composition, includes the following steps: (a) selecting at least one granular starch and at least one organic plasticizer for this starch, (b) preparing a plasticized composition by thermomechanically mixing this starch and this plasticizer, (c) optionally incorporating at least one functional substance carrying functions including an active hydrogen, (d) incorporating at least one bonding agent carrying at least two functional groups capable of reacting with molecules carrying functions including an active hydrogen, and optionally (e) heating the mixture to a temperature sufficient to cause the bonding agent to react with the plasticizer and with the starch and/or the functional substance, it being possible for steps (d) and (e) to be carried out simultaneously, and also a starch-based thermoplastic composition that can be obtained by this method.Type: ApplicationFiled: January 29, 2009Publication date: December 9, 2010Applicant: ROQUETTE FRERESInventors: Leon Mentink, Didier Lagneaux, Jerome Gimenez
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Publication number: 20100311874Abstract: A starch-based composition includes: (a) at least 51% by weight of a plasticized amylaceous composition including starch and a plasticizer for the starch, obtained by thermomechanically mixing granular starch and a plasticizer for the starch, (b) at most 49% by weight of at least one non-amylaceous polymer, and (c) a bonding agent having a molecular mass of less than 5000, including at least two functions, at least one which is capable of reacting with the plasticizer and at least another of which is capable of reacting with the starch and/or the non-amylaceous polymer, these amounts being expressed with respect to solids and relative to the sum of (a) and (b), a method for preparing such a composition and a thermoplastic composition obtained by heating such a composition.Type: ApplicationFiled: January 29, 2009Publication date: December 9, 2010Applicant: ROQUETTE FRERESInventors: Leon Mentink, Didier Lagneaux, Jerome Gimenez
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Patent number: 7772309Abstract: Thermoplastic polyurethane (TPU) compositions are disclosed comprising TPU polymer, polyisocyanate, and a salt of zirconium phosphate. The compositions have enhanced thermal properties, good processability, and good hydrolysis resistance. Processes are also disclosed to combine the ingredients by melt mixing or to prepare the compositions in-situ as the TPU is being polymerized.Type: GrantFiled: October 9, 2007Date of Patent: August 10, 2010Assignee: Lubrizol Advanced Materials, Inc.Inventors: Didier Lagneaux, Vicky M. J. Bertels, Robert Jansen
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Publication number: 20100092710Abstract: A processing aid is used in the processing of thermoplastic polyurethanes to give various articles including a self-supporting film. The processing aid contains a) 10-50% by weight of hydrophobized, at least partially aggregated, metal oxide particles selected from the group consisting of aluminium oxide, silicon dioxide and mixtures thereof, b) 20-75% by weight of one or more thermoplastic polyurethanes, c) 0.5-25% by weight of one or more isocyanates, d) 0.5-15% by weight of one or more compounds which act as lubricant and dispersant, the sum of the constituents a) to d) amounting to at least 90% by weight, based on a total weight of said processing aid.Type: ApplicationFiled: October 15, 2009Publication date: April 15, 2010Applicant: EVONIK DEGUSSA GmbHInventors: Thomas Welker, Ulrich Boes, Frank Menzel, Dieter Kuhn, Uwe Schachtely, Didier Lagneaux, Henri Sautel
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Publication number: 20080114093Abstract: Thermoplastic polyurethane (TPU) compositions are disclosed comprising TPU polymer, polyisocyanate, and a salt of zirconium phosphate. The compositions have enhanced thermal properties, good processability, and good hydrolysis resistance. Processes are also disclosed to combine the ingredients by melt mixing or to prepare the compositions in-situ as the TPU is being polymerized.Type: ApplicationFiled: October 9, 2007Publication date: May 15, 2008Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Didier Lagneaux, Vicky M.J. Bertels, Robert Jansen
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Patent number: 6861491Abstract: A method for producing thermosetting polyurethane after transformation from thermoplastic polyurethane with a hydrolyzable organo-silane which is grafted onto macromolecules of said thermoplastic polyurethane by means of a bonding agent. Said organo-silane has general formula (I), wherein R1,R2,R3=aliphatic alkyl, aromatic alkyl; n>1; R4 is an organic radical which can react with said bonding agent which comprises at least two isocyanate functions and the thermoplastic polyurethane obtained can, after transformation, become automatically cross-linked by coming into contact with water molecules in order to become thermosetting. The invention also relates to a product which can be obtained according to the inventive method.Type: GrantFiled: December 10, 2001Date of Patent: March 1, 2005Assignee: Noveon IP Holdings Corp.Inventors: Didier Lagneaux, Stephane Dassin, Michel Dumon, Francoise Mechin, Jean-Pierre Pascault
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Publication number: 20040236035Abstract: Thermoplastic polyurethane, either alone or blended with other polymers, are grafted with diisocyanate trimers or blocked isocyanates. The thermoplastic polyurethane is crosslinked at a temperature above 85° C. to make the composition thermosetting. The crosslinked compositions have low compression set and are insoluble in THF.Type: ApplicationFiled: April 20, 2004Publication date: November 25, 2004Inventors: Didier Lagneaux, Jean-Pierre Pascault, Michel Dumon, Francoise Mechin
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Publication number: 20030232933Abstract: A polymer blend composition made by reacting a thermoplastic polyurethane polymer and another polymer such as poly(ethylene-co-vinyl acetate) polymer, having a functional group capable of reacting with an isocyanate. The polymers are reacted using a polyisocyanate compound during melt blending. Preferably, the melt blending occurs in an extruder. The polymer blend has improved tensile strength, improved abrasion resistance and higher melt strength, thus giving improved processability.Type: ApplicationFiled: June 17, 2002Publication date: December 18, 2003Inventors: Didier Lagneaux, A. Donald Meltzer
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Publication number: 20020169255Abstract: A method for producing thermosetting polyurethane 1Type: ApplicationFiled: December 10, 2001Publication date: November 14, 2002Applicant: Gemoplast(Societe Anonyme)Inventors: Didier Lagneaux, Stephane Dassin, Michel Dumon, Francoise Mechin, Jean-Pierre Pascault