Patents by Inventor Barbara Ramfel

Barbara Ramfel 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).

  • Publication number: 20190322806
    Abstract: One subject of the present invention is a composition that combines at least one polyamide having at least one MXD entity, MXD denoting meta-xylylenediamine or a mixture of meta-xylylenediamine and of para-xylylenediamine, with a bioresourced reinforcement. The invention also relates to the conversion of these compositions, by injection moulding or extrusion, into objects that have good mechanical properties, said objects corresponding to technical application specifications such as may be found, for example, in the automotive industry, construction, sport and in electrical or electronic fields.
    Type: Application
    Filed: June 6, 2019
    Publication date: October 24, 2019
    Applicant: ARKEMA FRANCE
    Inventors: Benoit BRULE, Philippe BUSSI, Gilles HOCHSTETTER, Guillaume LE, Barbara RAMFEL
  • Patent number: 10400097
    Abstract: The present invention concerns a fluorinated polymer composition, methods for producing same, and products that can be produced from said composition. More particularly, the invention concerns a thermoplastic polymer composition comprising the following components A, B and C: A—a polyvinylidene fluoride (PVDF) homopolymer comprising a fraction of ultra high molecular weight chains (UHMCF); B—a vinylidene fluoride (VDF) elastomeric copolymer and at least one other fluorinated comonomer copolymerisable with VDF, and C—a VDF homopolymer having a lower viscosity than component A.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: September 3, 2019
    Assignee: ARKEMA FRANCE
    Inventors: Anthony Bonnet, Cyrille Mathieu, Alejandra Reyna-Valencia, Barbara Ramfel (Epouse Wiegert), Christophe Degoulet
  • Patent number: 10358527
    Abstract: One subject of the present invention is a composition that combines at least one polyamide having at least one MXD entity, MXD denoting meta-xylylenediamine or a mixture of meta-xylylenediamine and of para-xylylenediamine, with a bioresourced reinforcement. The invention also relates to the conversion of these compositions, by injection molding or extrusion, into objects that have good mechanical properties, said objects corresponding to technical application specifications such as may be found, for example, in the automotive industry, construction, sport and in electrical or electronic fields.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: July 23, 2019
    Assignee: Arkema France
    Inventors: Benoit Brule, Philippe Bussi, Gilles Hochstetter, Guillaume Le, Barbara Ramfel
  • Publication number: 20180334566
    Abstract: The invention relates to a composition comprising at least one first polyamide, conforming to the formula MXD.10 or MXD.10/Z and having a melting temperature Tf1, and at least one second polyamide. Said at least second polyamide has a melting temperature Tf2 such that Tf1?40° C.?Tf2<Tf1+20° C. The invention likewise relates to an article obtained from such a composition, to a method of shaping such an article, and to the use of such a composition and of such an article.
    Type: Application
    Filed: February 12, 2018
    Publication date: November 22, 2018
    Inventors: Benoît Brule, Barbara Ramfel
  • Publication number: 20180134886
    Abstract: The present invention concerns a fluorinated polymer composition, methods for producing same, and products that can be produced from said composition. More particularly, the invention concerns a thermoplastic polymer composition comprising the following components A, B and C: A- a polyvinylidene fluoride (PVDF) homopolymer comprising a fraction of ultra high molecular weight chains (UHMCF); B- a vinylidene fluoride (VDF) elastomeric copolymer and at least one other fluorinated comonomer copolymerisable with VDF, and C- a VDF homopolymer having a lower viscosity than component A.
    Type: Application
    Filed: July 27, 2016
    Publication date: May 17, 2018
    Inventors: Anthony BONNET, Cyrille MATHIEU, Alejandra REYNA-VALENCIA, Barbara RAMFEL (EPOUSE WIEGERT), Christophe DEGOULET
  • Patent number: 9890283
    Abstract: The invention relates to a composition comprising at least one first polyamide, conforming to the formula MXD.10 or MXD.10/Z and having a melting temperature Tf1, and at least one second polyamide. Said at least second polyamide has a melting temperature Tf2 such that Tf1?40° C.?Tf2<Tf1+20° C. The invention likewise relates to an article obtained from such a composition, to a method of shaping such an article, and to the use of such a composition and of such an article.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: February 13, 2018
    Assignee: Arkema France
    Inventors: Benoit Brule, Barbara Ramfel
  • Publication number: 20160271912
    Abstract: The present invention concerns compositions made from fluorinated polymers and the uses of same in order to produce transparent monolayer or multilayer films intended to protect various substrates. The polymer composition consists of at least one polymer made from vinylidene fluoride, at least one acrylic polymer and at least one UV absorber, the mass ratio of said fluorinated polymer being 60 and 90%, the mass ratio of said UV absorber being from 0.5 to 5% and the molecular weight of the latter is greater than 500 g/mol.
    Type: Application
    Filed: October 6, 2014
    Publication date: September 22, 2016
    Inventors: Stephane BIZET, Anthony BONNET, Samuel DEVISME, Thomas Fine, Barbara RAMFEL
  • Publication number: 20160215133
    Abstract: The invention relates to a method for producing composition, said method involving—mixing a polyvinylidene fluoride with a copolymer of vinylidene fluoride and a comonomer, and with a crosslinking agent; crosslinking the obtained mixture. The invention further relates to the composition obtained by said method as well as the use of the composition for producing various items, such as pipes.
    Type: Application
    Filed: September 2, 2014
    Publication date: July 28, 2016
    Inventors: Anthony BONNET, Cyrille MATHIEU, Barbara RAMFEL, Alejandra REYNA-VALENCIA
  • Publication number: 20160017136
    Abstract: The invention relates to a composition comprising: a homopolymer of vinylidene fluoride (VDF) and at least one other fluorinated monomer copolymerizable with VDF, the weight proportion of said copolymer in the composition being between 10 to 35%; and a plasticisizer, the weight proportion of said plasticizer in the composition being between 1 to 5%. The invention also relates to a method for producing said composition and the use thereof for producing various items.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 21, 2016
    Applicant: Arkema France
    Inventors: Gilles Hochstetter, Lionel HUGON, Thomas LABOUR, Thierry LANNUZEL, Barbara RAMFEL, Ramin AMIN-SANAYEI
  • Patent number: 8765849
    Abstract: The invention relates to a composition comprising, relative to the total weight of the composition: between 25% and 52% by weight of at least one semi-crystalline or amorphous polyamide, having an amine chain-end content of less than 0.040 meq/g, between 24% and 40% by weight of at least one reinforcer, and between 24% and 35% by weight of at least one metal salt, optionally contained in a polymer, chosen from a metal salt of phosphinic acid, a metal salt of diphosphinic acid, and a mixture thereof. The invention also relates to the process for preparing this composition and its use.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: July 1, 2014
    Assignee: Arkema France
    Inventors: Philippe Blondel, Eric Gamache, Benjamin Saillard, Barbara Ramfel
  • Publication number: 20140044976
    Abstract: The invention relates to a novel use of a multilayer structure, combining fluorinated polymers and PVC, as protection for use at the rear of a photovoltaic solar panel, said structure having improved durability in outdoor environments, while retaining the other properties associated with a back-sheet, namely good electric insulation, thermal stability in terms of volume and dimensions and good adhesion to the encapsulating material. The invention relates to the use of a multilayer structure as protection at the rear of a solar panel, said structure comprising at least one layer of fluorinated polymer and one layer of PVC.
    Type: Application
    Filed: April 27, 2012
    Publication date: February 13, 2014
    Applicant: ARKEMA FRANCE
    Inventors: Anthony Bonnet, Samuel Devisme, Barbara Ramfel, Stephane Bizet
  • Publication number: 20130319510
    Abstract: The present invention relates to a composition comprising a fluoropolymer and two white inorganic fillers, the said composition being intended for the manufacture of thin monolayer films which are opaque to visible light and to UV rays and which can be used in particular in the field of photovoltaic cells. This composition consists of at least one fluoropolymer and of two white inorganic fillers, which are zinc oxide and titanium oxide; they are present in a proportion by weight ranging from 5 to 30% and from 3 to 7.5% respectively, The said composition additionally comprises less than 5% by weight of acrylic polymer, with respect to the total weight of the composition.
    Type: Application
    Filed: September 30, 2011
    Publication date: December 5, 2013
    Applicant: Arkema France
    Inventors: Anthony Bonnet, Nicolas Devaux, Barbara Ramfel, Emmanuel Veret, Stephane Bizet, Gregory S. O'Brien
  • Patent number: 8309190
    Abstract: The invention relates to an article formed by a rotational molding process, having at least one layer formed from a high molecular weight polyamide. The high molecular weight polyamide is one having a molecular weight in the range of 20,000 to 35,000 and also having an inherent viscosity of 1.05-1.60 dL/g. Rotomolded articles having a high molecular weight polyamide layer have better low-temperature impact performance compared to articles formed from lower molecular weight polyamides.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: November 13, 2012
    Assignee: Arkema Inc.
    Inventors: John C. Chen, Barbara Ramfel, Bruce Clay, William Todd Rogers
  • Publication number: 20120183711
    Abstract: The invention relates to a composition comprising at least one first polyamide, conforming to the formula MXD.10 or MXD.10/Z and having a melting temperature Tf1, and at least one second polyamide. Said at least second polyamide has a melting temperature Tf2 such that Tf1?40° C.?Tf2<Tf1+20° C. The invention likewise relates to an article obtained from such a composition, to a method of shaping such an article, and to the use of such a composition and of such an article.
    Type: Application
    Filed: July 1, 2010
    Publication date: July 19, 2012
    Applicant: ARKEMA FRANCE
    Inventors: Benoit Brule, Barbara Ramfel
  • Publication number: 20120040115
    Abstract: The invention relates to a composition comprising, relative to the total weight of the composition: between 25% and 52% by weight of at least one semi-crystalline or amorphous polyamide, having an amine chain-end content of less than 0.040 meq/g, between 24% and 40% by weight of at least one reinforcer, and between 24% and 35% by weight of at least one metal salt, optionally contained in a polymer, chosen from a metal salt of phosphinic acid, a metal salt of diphosphinic acid, and a mixture thereof. The invention also relates to the process for preparing this composition and its use.
    Type: Application
    Filed: January 27, 2010
    Publication date: February 16, 2012
    Applicant: Arkema France
    Inventors: Philippe Blondel, Eric Gamache, Benjamin Saillard, Barbara Ramfel
  • Publication number: 20120027971
    Abstract: The invention relates to an article formed by a rotational molding process, having at least one layer formed from a high molecular weight polyamide. The high molecular weight polyamide is one having a molecular weight in the range of 20,000 to 35,000 and also having an inherent viscosity of 1.05-1.60 dL/g. Rotomolded articles having a high molecular weight polyamide layer have better low-temperature impact performance compared to articles formed from lower molecular weight polyamides.
    Type: Application
    Filed: February 24, 2010
    Publication date: February 2, 2012
    Applicant: Arkema Inc.
    Inventors: John C. Chen, Barbara Ramfel, Bruce Clay, William Todd Rogers
  • Publication number: 20110288194
    Abstract: One subject of the present invention is a composition that combines at least one polyamide having at least one MXD entity, MXD denoting meta-xylylenediamine or a mixture of meta-xylylenediamine and of para-xylylenediamine, with a bioresourced reinforcement. The invention also relates to the conversion of these compositions, by injection moulding or extrusion, into objects that have good mechanical properties, said objects corresponding to technical application specifications such as may be found, for example, in the automotive industry, construction, sport and in electrical or electronic fields.
    Type: Application
    Filed: November 23, 2009
    Publication date: November 24, 2011
    Applicant: Arkema France
    Inventors: Benoit Brule, Philippe Bussi, Gilles Hochstetter, Guillaume Le, Barbara Ramfel
  • Patent number: 7241817
    Abstract: The present invention relates to a process for grafting an unsaturated monomer onto a fluoropolymer, having the steps of: a) melt blending the fluoropolymer with the unsaturated monomer; b) forming the blend obtained in a) into films, sheets, granules or powder; c) exposing the products from step b), in the absence of air, to photon (?) or electron (?) irradiation with a dose of between 1 and 15 Mrad; and d) optionally treating the product obtained at c) in order to remove all or part of the unsaturated monomer that has not been grafted onto the fluoropolymer. Structures made with these materials are barriers to many fluids and in particular to petrol and to air-conditioning fluids and may be formed into bottles, tanks, containers, pipes, hoses and vessels of all sorts. They may also be converted into films with which packaging is made.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: July 10, 2007
    Assignee: Arkema France
    Inventors: Anthony Bonnet, Barbara Ramfel, Fabrice Chopinez, Karine Triballier, Michael Werth, Thierry Pascal
  • Publication number: 20050203203
    Abstract: The present invention relates to a process for grafting an unsaturated monomer onto a fluoropolymer, having the steps of: a) melt blending the fluoropolymer with the unsaturated monomer; b) forming the blend obtained in a) into films, sheets, granules or powder; c) exposing the products from step b), in the absence of air, to photon (y) or electron (?) irradiation with a dose of between 1 and 15 Mrad; and d) optionally treating the product obtained at c) in order to remove all or part of the unsaturated monomer that has not been grafted onto the fluoropolymer. Structures made with these materials are barriers to many fluids and in particular to petrol and to air-conditioning fluids and may be formed into bottles, tanks, containers, pipes, hoses and vessels of all sorts. They may also be converted into films with which packaging is made.
    Type: Application
    Filed: June 2, 2004
    Publication date: September 15, 2005
    Inventors: Anthony Bonnet, Barbara Ramfel, Fabrice Chopinez, Karine Triballier, Michael Werth, Thierry Pascal
  • Publication number: 20050069778
    Abstract: The present invention relates to a structure comprising, in succession: a metal layer L1, optionally a fluorinated primer L2, which is a blend comprising, by weight, 1 to 100% of at least one modified fluoropolymer per 0 to 99% of fluoropolymer, respectively, and a layer of a fluoropolymer L3; such that, if the primer layer L2 is absent, the fluoropolymer L3 is a blend comprising, by weight, 1 to 100% of at least one modified fluoropolymer per 0 to 99% of fluoropolymer, respectively; the said modified fluoropolymer being chosen from: fluoropolymers grafted with an unsaturated monomer, the grafting being carried out in the absence of oxygen by irradiation of the unsaturated monomer and of the fluoropolymer that are melt-blended beforehand, and fluoropolymers irradiated in the presence of oxygen (also referred to as oxidized fluoropolymers). The structure is useful as a positive electrode for a lithium-ion battery.
    Type: Application
    Filed: July 28, 2004
    Publication date: March 31, 2005
    Inventors: Anthony Bonnet, Barbara Ramfel, Benoit Barriere, Thierry Pascal