Patents by Inventor Ludwik Leibler
Ludwik Leibler 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: 7750113Abstract: The invention relates to a supramolecular polymer containing units which are linked by hydrogen bonds, said units being monomers of prepolymers comprising at least one functional group selected from the functional groups (1) and (3) and a second functional group (5) wherein A denotes oxygen, sulphur or NH and X is any unit; the hydrogen bonds in the supramolecular polymer being formed between two identical or different functional groups chosen from the functional groups (1) to (5). The inventive polymers can be used alone, i.e. in the form of a composition which is essentially made from said polymers and, optionally, stabilizers, antioxidants, etc. or in the form of a mixture with other polymers or other products.Type: GrantFiled: March 19, 2008Date of Patent: July 6, 2010Assignee: Arkema FranceInventors: Francois-Genes Tournilhac, Corinne Soulie-Ziakovic, Ludwik Leibler, Laurent Lachaize
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Publication number: 20100135940Abstract: The invention relates to a supramolecular polymer derived from the reaction between (i) an amine bearing a nitrogen-containing heterocyclic group: imidazolidone, trimethyleneurea or triazine, capable of joining together via hydrogen bonds with (ii) at least one fatty acid monomer comprising at least one reactive functional group, a dimer of identical or different fatty acids and/or a trimer of identical or different fatty acids, or a derivative of said fatty acid(s) chosen from a fatty acid ester, and a fatty acid chloride.Type: ApplicationFiled: September 7, 2007Publication date: June 3, 2010Applicant: Arkema FranceInventors: Sandra Grimaldi, Jean-Philippe Gillet, Manuel Hidalgo, Francois-Genes Tournilhac, Philippe Cordier, Ludwik Leibler
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Publication number: 20100120983Abstract: A polymeric material from the styrene family, consisting of macromolecular chains grafted by nitrogen-containing heterocyclic groups; wherein the macromolecular chains consist of a polymeric backbone to which a grafted agent is attached by at least one covalent bond, the grafting agent comprises, in a single molecule, one or more associative groups capable of being bound by hydrogen bonds, and one or more reactive groups capable of forming covalent bonds with the polymeric backbone, at least one of the associative groups of the modifier is an imidazolidone heterocyclic ring. The mean number of imidazolidone groups to be inserted into the macromolecular chains is dependent both on the mean mass of said chains and on the final properties to be imparted to the material. The polymeric material of the invention can be extruded, coextruded, injected, blow-moulded, moulded, overmoulded, calendered or thermoformed. Objects such as tubes, films, plates, stiffenerss, bottles and containers can be made.Type: ApplicationFiled: February 1, 2008Publication date: May 13, 2010Applicants: Arkema France, Centre National De La Recherche Scientifique (CNRSInventors: Nicolas Dufaure, Sandra Grimaldi, Manuel Hidalgo, Ludwik Leibler, Francois-Genes Tournilhac
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Publication number: 20100063223Abstract: The invention relates to a graft copolymer composed of a block copolymer of general formula B-(A)n in which A is a rigid block polymer with a glass transition temperature of more than 0° C., B is a flexible block polymer with a glass transition temperature of less than 0° C.; and n is 1 or is a natural integer greater than 1, it being possible for the blocks A, when n is 2 or more, to be identical or different; and of polyamide (PA) grafts which are carried by the rigid polymer block or blocks, the resulting graft copolymer being represented by the formula (Ag)m-B-(A)p in which A and B are as defined above, Ag is the block A carrying at least one graft (PA) and m and p are natural integers whose sum is equal to n, but p being able to be equal to 0.Type: ApplicationFiled: December 1, 2006Publication date: March 11, 2010Applicant: Arkema FranceInventors: Mathilde Weber, Ilias Iliopoulos, Ludwik Leibler, Pierre Gerard
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Publication number: 20090321694Abstract: The invention relates to a core-shell-type multilayer particle comprising at least one layer B that comprises at least one photoactive monomer bearing a photoisomerizable chromophore and a rigid shell A. The photoactive monomer has the following formula (I): (I) in which: X denotes H or CH3—; G denotes ?O—C(?O)—, —C(?O)—O—, a substituted or unsubstituted phenyl group, or else —NR—C(?O)—, NR being bonded to L and R being H or a C1-C10 alkyl group; L denotes a spacer group; CR denotes a photoisomerizable chromophore. It is possible to use the multilayer particle of the invention to achieve optical storage of 2D data.Type: ApplicationFiled: November 26, 2007Publication date: December 31, 2009Applicant: Arkema FranceInventors: Christophe Le Crom, Ludwik Leibler
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Publication number: 20090062551Abstract: The present invention relates to materials exhibiting the property of rubbery elasticity, consisting of molecules with a mass of between 9 and 9000 g/mol, all or some of the molecules having at least three groups (also referred to as “associative groups”) capable of associating via non-covalent interactions. Although consisting of small non-polymerized molecules that are not chemically crosslinked, this material exhibits properties of rubbery elasticity. According to an embodiment of the invention, this material exhibits rubbery elasticity at ambient temperature. Above a certain temperature, the material flows like a simple liquid. The material is thermoreversible, i.e. after cooling, the material again exhibits the property of rubbery elasticity. This material is self-repairing and potentially recyclable, which is never the case with a chemically crosslinked elastomer.Type: ApplicationFiled: February 14, 2006Publication date: March 5, 2009Applicant: ARKEMA FRANCEInventors: Francois-Genes Tournilhac, Ludwik Leibler, Philippe Cordier, Corinne Soulie-Ziakovic
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Publication number: 20080221272Abstract: The invention concerns a polymer material consisting of macromolecular chains bound by hydrogen bonds wherein: the macromolecular chains consist of a polymer skeleton whereon is fixed by at least one covalent bond a modifying agent, the modifying agent comprising, assembled in a common molecule, one or more associative groups capable of being bound by hydrogen bonds and one or more reactive groups capable of forming covalent bonds with the polymer skeleton, at least one of the associative groups of the modifying agent is an imidazolidone heterocycle, the macromolecular chains bear on average 1 to 10 imidazolidone groups per chain. The average number of imidazolidone groups to be introduced into the macromolecular chains depends both on the average mass of said chains and the final properties desired for the material. The inventive polymer material can be extruded, co-extruded, injected, blown, moulded, overmoulded, calandered, thermoformed.Type: ApplicationFiled: July 6, 2005Publication date: September 11, 2008Inventors: Francois-Genes Tournilhac, Ludwik Leibler, Philippe Cordier, Corinne Soulie-Ziakovic, Annett Linemann, Manuel Hidalgo
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Publication number: 20080167442Abstract: The invention relates to a supramolecular polymer containing units which are linked by hydrogen bonds, said units being monomers of prepolymers comprising at least one functional group selected from the functional groups (1) and (3) and a second functional group (5) wherein A denotes oxygen, sulphur or NH and X is any unit; the hydrogen bonds in the supramolecular polymer being formed between two identical or different functional groups chosen from the functional groups (1) to (5). The inventive polymers can be used alone, i.e. in the form of a composition which is essentially made from said polymers and, optionally, stabilizers, antioxidants, etc. or in the form of a mixture with other polymers or other products.Type: ApplicationFiled: March 19, 2008Publication date: July 10, 2008Applicant: Arkema FranceInventors: Francois-Genes Tournilhac, Corinne Soulie-Ziakovic, Ludwik Leibler, Laurent Lachaize
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Patent number: 7348397Abstract: The invention relates to a supramolecular polymer containing units which are linked by hydrogen bonds, said units being monomers of prepolymers comprising at least one functional group selected from the functional groups (1) and (3) and a second functional group (5) wherein A denotes oxygen, sulphur or NH and X is any unit; the hydrogen bonds in the supramolecular polymer being formed between two identical or different functional groups chosen from the functional groups (1) to (5). The inventive polymers can be used alone, i.e. in the form of a composition which is essentially made from said polymers and, optionally, stabilizers, antioxidants, etc. or in the form of a mixture with other polymers or other products.Type: GrantFiled: November 14, 2006Date of Patent: March 25, 2008Assignee: Arkema FranceInventors: Francois-Genes Tournilhac, Corinne Soulie-Ziakovic, Ludwik Leibler, Laurent Lachaize
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Patent number: 7250487Abstract: The invention relates to a supramolecular polymer containing units which are linked by hydrogen bonds, said units being monomers of prepolymers comprising at least one functional group selected from the functional groups (1) and (3) and a second functional group chosen from functional groups (1) to (5) wherein A denotes oxygen, sulphur or NH and X is any unit; the hydrogen bonds in the supramolecular polymer being formed between two identical or different functional groups chosen from the functional groups (1) to (5). The inventive polymers can be used alone, i.e. in the form of a composition which is essentially made from said polymers and, optionally, stabilizers, antioxidants, etc. or in the form of a mixture with other polymers or other products.Type: GrantFiled: January 15, 2003Date of Patent: July 31, 2007Assignee: Arkema FranceInventors: Francois-Genes Tournilhac, Corinne Soulie-Ziakovic, Ludwik Leibler, Laurent Lachaize
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Publication number: 20070123694Abstract: The invention relates to a supramolecular polymer containing units which are linked by hydrogen bonds, said units being monomers of prepolymers comprising at least one functional group selected from the functional groups (1) and (3) and a second functional group (5) wherein A denotes oxygen, sulphur or NH and X is any unit; the hydrogen bonds in the supramolecular polymer being formed between two identical or different functional groups chosen from the functional groups (1) to (5). The inventive polymers can be used alone, i.e. in the form of a composition which is essentially made from said polymers and, optionally, stabilizers, antioxidants, etc. or in the form of a mixture with other polymers or other products.Type: ApplicationFiled: November 14, 2006Publication date: May 31, 2007Inventors: Francois-Genes Tournilhac, Corinne Soulie-Ziakovic, Ludwik Leibler, Laurent Lachaize
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Patent number: 7144952Abstract: These compositions based on semi-crystalline thermoplastic resin and on ABC block copolymers result in materials or in items which exhibit an impact strength, an elongation at break, a resistance to cracking and to deformation under stress, and a thermal behavior which are improved with respect to semi-crystalline resin or resins alone or mixed with conventional impact additives, while retaining a high modulus and thus a degree of stiffness. They are generally suitable for the preparation of items or articles, such as sheets, films, pipe sheathings, tubings, pipes, yarns, strands, cable sheathings, bracing wires, leaktight sheathings, sleeve tubes, both mono- and multilayer, shaped components, molded panels, thermoformed articles, sections, bottles or powders for coating substrates. The materials or items obtained from these compositions exhibit a characteristic morphology visible in electron microscopy.Type: GrantFiled: December 7, 1998Date of Patent: December 5, 2006Assignee: Arkema FranceInventors: Francois Court, Ludwik Leibler, Ahmed Mourran, Christophe Navarro, Vincent Royackkers
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Publication number: 20060128892Abstract: The invention concerns transparent materials having good impact resistance, a high modulus and good heat resistance. The inventive materials comprise an amorphous matrix, preferably based on styrene/methyl methacrylate statistical copolymer whether impact-reinforced of not with a standard additive, and a block copolymer having at least an elastomeric block and at least a block partly or entirely compatible with the amorphous matrix.Type: ApplicationFiled: October 15, 2003Publication date: June 15, 2006Inventors: Manuel Hidalgo, Silvija Abele, Francois Court, Ludwik Leibler, Djamel Bensarsa
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Publication number: 20060116475Abstract: The invention relates to a shock-reinforced thermoplastic composition comprising at least one polyamide and at least one block copolymer having a block that is entirely or mainly comprised of sydiotactic methyl polymethacrylate at a rate of more than 60%. The inventive composition has excellent mechanical properties and can be used in various applications.Type: ApplicationFiled: January 13, 2004Publication date: June 1, 2006Inventors: Ludwik Leibler, Francois Court, Valery Rebizant, Volker Abertz, Francois-Genes Tournilhac, Christophe Navarro
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Publication number: 20060063891Abstract: The invention relates to the production and use of block copolymers which are obtained by means of controlled radical polymerisation in the presence of nitroxides for the purpose of reinforcing fragile polymer matrices. The invention offers advantages such as (i) simplicity of copolymer synthesis and use and (ii) fine dispersion of the copolymer molecules in the fragile matrix, which ensures both the transparency of the material and high reinforcement against impact. More specifically, the invention relates to the radical synthesis of block copolymers comprising at least three blocks, which include one block having a glass transition temperature of less than 0° C. and a thermoplastic end block having a glass transition temperature of more than 0° C., thereby guaranteeing compatibility with the fragile matrix to be reinforced against impact.Type: ApplicationFiled: January 21, 2003Publication date: March 23, 2006Inventors: Anne-Valerie Ruzette, Florence Chauvin, Olivier Guerret, Denis Bertin, Bruno Vuillemin, Ludwik Leibler, Pierre Gerard, Yannick Ederle
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Publication number: 20050148760Abstract: The invention relates to a supramolecular polymer containing units which are linked by hydrogen bonds, said units being monomers of prepolymers comprising at least one functional group selected from the functional groups (1) and (3) and a second functional group chosen from functional groups (1) to (5) wherein A denotes oxygen, sulphur or NH and X is any unit; the hydrogen bonds in the supramolecular polymer being formed between two identical or different functional groups chosen from the functional groups (1) to (5). The inventive polymers can be used alone, i.e. in the form of a composiiotn which is essentially made from said polymers and, optionally, stabilizers, antioxidants, etc. or in the form of a mixture with other polymers or other products.Type: ApplicationFiled: January 15, 2003Publication date: July 7, 2005Inventors: Francois-Genes Tournilhac, Corinne Soulie-Ziakovic, Ludwik Leibler, Laurent Lachaize
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Patent number: 6894113Abstract: The present invention relates to a thermoset material with improved impact resistance comprising: 99 to 20% of a thermoset resin, and 1 to 80% of an impact modifier comprising at least one copolymer comprising S-B-M, B-M and M-B-M blocks, wherein: each block is connected to the other by means of a covalent bond or of an intermediate molecule connected to one of the blocks via a covalent bond and to the other block via another covalent bond, M is a PMMA homopolymer or a copolymer comprising at least 50% by weight of methyl methacrylate, B is incompatible with the thermoset resin and with the M block and its glass transition temperature Tg is less than the operating temperature of the thermoset material, and S is incompatible with the thermoset resin, the B block and the M block and its Tg or its melting temperature is greater than the Tg of B. S is advantageously polystyrene and B polybutadiene.Type: GrantFiled: May 17, 2001Date of Patent: May 17, 2005Assignee: AtofinaInventors: Francois Court, Ludwik Leibler, Jean-Pierre Pascault, Sophie Ritzenthaler
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Publication number: 20040221395Abstract: The invention concerns leather finish compositions containing at least an aqueous dispersion of film-forming polymer at room temperature without cosolvent, or plasticizing agent and optionally a cross-linking agent. Said dispersions free of organic solvent provide non-sticky and abrasion resistant coatings with good water resistance. Said dispersions consist of structured polymer particles having one or more soft phases (Tg<20° C.) and one or more hard phases (Tg>60° C.).Type: ApplicationFiled: December 5, 2002Publication date: November 11, 2004Inventors: Claudine Biver, Xavier Drujon, Ludwik Leibler, Emeryc Valot
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Patent number: 6762245Abstract: The present invention relates to a conductive composition comprising (i) a fluoropolymer, (ii) an electrically conductive product and (iii) a triblock copolymer ABC, the three blocks A, B and C being linked together in this order, each block being either a homopolymer or a copolymer obtained from two or more monomers, block A being linked to block B and block B to block C by means of a covalent bond or an intermediate molecule linked to one of these blocks via a covalent bond and to the other block via another covalent bond, and such that: block A is compatible with the fluoropolymer, block B is incompatible with the fluoropolymer and is incompatible with block A, block C is incompatible with the fluoropolymer, block A and block B. The invention also relates to the components manufactured with the above composition. These components may be plates, films, tubes, rods, centrifugal pump components and containers.Type: GrantFiled: December 3, 2001Date of Patent: July 13, 2004Assignee: ATOFINAInventors: Anthony Bonnet, Francois Court, Ludwik Leibler
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Patent number: 6723779Abstract: A latex which forms a film by evaporation at a temperature of less than 40° C. is based on hydrophobic polymer particles having a core/shell structure. The particles consist of 70 to 90% by weight of at least one polymer with a soft character having a glass transition temperature of less than 20° C. forming the core, and 10 to 30% by weight of at least one polymer with a hard character having a glass transition temperature of greater than 50° C. forming the shell. When applied to any surface and after drying at low temperature, the latex, without the use of any coalescents or volatile organic compounds, provides a continuous film which is homogeneous, has no surface tack and has good mechanical integrity.Type: GrantFiled: April 30, 2002Date of Patent: April 20, 2004Assignee: Elf Atochem S.A.Inventors: Xavier Drujon, Pascale Fabre, Ludwik Leibler, Gilles Meunier, Fabrice Domingues Dos Santos