Abstract: Provided is a gelled carbon-based composition forming an organic polymeric monolithic gel capable of forming a porous carbon monolith by pyrolysis, a use thereof and a process for preparing this composition. A composition according to the invention is based on a resin derived at least partly from polyhydroxybenzene(s) R and formaldehyde(s) F, has a thermal conductivity of less than or equal to 40 mW·m?1·K?1, and includes at least one water-soluble cationic polyelectrolyte P. A process for preparing this composition comprises: a) polymerization, in an aqueous solvent, of the polyhydroxybenzene(s) and formaldehyde(s), in the presence of at least one cationic polyelectrolyte dissolved in this solvent and of a catalyst, in order to obtain a solution based on the resin, b) gelling of the solution in order to obtain a gel, and c) drying in order to obtain the organic polymeric monolithic gel.

Abstract: The present invention relates to a multilayer conductive transparent electrode comprising: a substrate layer (1), a conductive layer (2) comprising at least one optionally substituted polythiophene conductive polymer, and the conductive layer (2) being in direct contact with the substrate layer (1) and the conductive layer (2) also comprising at least one hydrophobic adhesive polymer which has chemical compatibility with the optionally substituted polythiophene conductive polymer, such that said multilayer conductive transparent electrode has a coefficient of haze of less than or equal to 3%. The invention also relates to the process for manufacturing such a multilayer conductive transparent electrode.

Abstract: An anode usable in a cell of a lithium-ion battery comprising an electrolyte based on a lithium salt and a non-aqueous solvent, to a process for manufacturing this anode and to a lithium-ion battery having one or more cells incorporating this anode. This anode is based on a polymer composition, obtained by melt processing and without solvent evaporation, that is the product of a hot compounding reaction between an active material and additives having a polymer binder and an electrically conductive filler. The binder is based on at least one crosslinked elastomer and the additives furthermore include at least one non-volatile organic compound usable in the electrolyte solvent, the composition advantageously includes the active material in a mass fraction greater than or equal to 85%.

Abstract: Organic gels of resorcinol-formaldehyde type, carbon-based materials of adjusted porosity derived therefrom by pyrolysis. Such materials may be used, in particular, for the production of electrodes.

Abstract: A process for preparing a reinforced and reactive thermoplastic composition having a continuous phase based on a thermoplastic polymer and dispersed therein is a discontinuous phase based on a reactive reinforcing agent that may be immiscible with the thermoplastic polymer is provided. A composition obtained by this process is also provided. The reinforcing agent is selected from the group consisting of epoxy resins, polyorganosiloxanes having SiH functional group(s), diisocyanates or polyisocyanates and mixtures thereof, comprises a grafting, a branching and/or a crosslinking, that are carried out in situ, by reactive compounding of these phases with a shear rate greater than 102 s?1, of the reinforcing agent onto the chain of the thermoplastic polymer, so that the discontinuous phase is dispersed homogeneously in the continuous phase in the form of nodules having a number-average size of less than 5 ?m.

Abstract: A subject-matter of the invention is a novel process for the preparation of sulphur-modified monolithic porous carbon-based materials by impregnation with a strong sulphur-based acid, the materials capable of being obtained according to this process and the use of these materials with improved supercapacitance properties to produce electrodes intended for energy storage systems. Electrodes composed of sulphur-modified monolithic porous carbon-based materials according to the invention and lithium batteries and supercapacitors having such electrodes also form part of the invention.

Abstract: Novel articles, in particular films, made from polymers, which are elastic, impermeable to water and permeable to water vapor. Said articles are made from a composition comprising a dispersion of an elastomer in an aqueous solvent, a hydrophilic compound and a cross-linking agent.

Abstract: The invention relates to a process for preparing a reinforced and reactive thermoplastic composition having a continuous phase which is based on at least one thermoplastic polymer and dispersed in which is a discontinuous phase based on at least one reactive reinforcing agent that may be immiscible with said at least one thermoplastic polymer, and also to a composition obtained by this process.

Abstract: A subject-matter of the invention is a novel process for the preparation of sulphur-modified monolithic porous carbon-based materials by impregnation with a strong sulphur-based acid, the materials capable of being obtained according to this process and the use of these materials with improved supercapacitance properties to produce electrodes intended for energy storage systems. Electrodes composed of sulphur-modified monolithic porous carbon-based materials according to the invention and lithium batteries and supercapacitors having such electrodes also form part of the invention.

Abstract: The present invention relates in particular to a conductive electrode for an electrical energy storage system (1) having an aqueous electrolyte solution, said electrode comprising a metallic current collector (3) and an active material (7), said metallic current collector (3) comprising a protective conductive layer (5) placed between said metallic current collector (3) and said active material (7), characterized in that said protective conductive layer (5) comprises:—between 30% and 85% as a proportion by weight of dry matter of a copolymer matrix,—between 70% and 15% as a proportion by weight of dry matter of conductive fillers, in addition to the proportion by weight of dry matter of copolymer in order to achieve a total of 100%.

Abstract: The present invention relates to a thermoplastic elastomer vulcanizate having two respectively thermoplastic and liquid silicone elastomer phases, and the preparation process thereof.

Abstract: The present invention relates to a novel polymer composition having conductive properties comprising: (a) at least one dispersion or suspension of elastomer having a Tg<20° C. and/or of thermoplastic polymer having a Tg<20° C., and/or a polymer solution, (b) at least one optionally substituted polythiophene conductive polymer, (c) particles of crosslinked or uncrosslinked polymer chosen from functionalized or unfunctionalized particles of polystyrene, of polycarbonate, of polymethylene melamine, said un crosslinked polymer particles having a Tg>80° C., glass particles, silica particles, and/or particles of metal oxides chosen from the following metal oxides: ZnO, MgO, MgAl2O4, and borosilicate particles.

Abstract: An anode usable in a cell of a lithium-ion battery comprising an electrolyte based on a lithium salt and a non-aqueous solvent, to a process for manufacturing this anode and to a lithium-ion battery having one or more cells incorporating this anode. This anode is based on a polymer composition, obtained by melt processing and without solvent evaporation, that is the product of a hot compounding reaction between an active material and additives having a polymer binder and an electrically conductive filler. The binder is based on at least one crosslinked elastomer and the additives furthermore include at least one non-volatile organic compound usable in the electrolyte solvent, the composition advantageously includes the active material in a mass fraction greater than or equal to 85%.

Abstract: The invention relates to a ribbed power transmission belt exhibiting a toothing made of elastomer based on ethylene/?-olefin elastomer, characterized in that at least the sides of the toothing are coated with a film made of at least partially crosslinked thermoplastic comprising at least 30% of at least one low-density polyethylene having a molecular weight of between 50 000 and 200 000 g/mol. The invention also relates to a manufacturing process which makes use of the application of a said thermoplastic film in the noncrosslinked or at least partially crosslinked state.

Abstract: A subject-matter of the invention is a novel process for the preparation of sulphur-modified monolithic porous carbon-based materials by impregnation with a strong sulphur-based acid, the materials capable of being obtained according to this process and the use of these materials with improved supercapacitance properties to produce electrodes intended for energy storage systems. Electrodes composed of sulphur-modified monolithic porous carbon-based materials according to the invention and lithium batteries and supercapacitors comprising such electrodes also form part of the invention.

Abstract: The invention relates to a process for preparing a reinforced and reactive thermoplastic composition having a continuous phase which is based on at least one thermoplastic polymer and dispersed in which is a discontinuous phase based on at least one reactive reinforcing agent that may be immiscible with said at least one thermoplastic polymer, and also to a composition obtained by this process.

Abstract: The present invention relates to a thermoplastic elastomer vulcanizate having two respectively thermoplastic and liquid silicone elastomer phases, and the preparation process thereof.

Abstract: Organic gels of resorcinol-formaldehyde type, carbon-based materials of adjusted porosity derived therefrom by pyrolysis. Such materials may be used, in particular, for the production of electrodes.

Abstract: The present invention relates to a composition comprising at least two incompatible thermoplastic polymers and at least one compatibilizer, to a method of preparing this composition, and to the use of said composition for the manufacture of thermoplastic articles or semi-finished products having, in particular, improved mechanical properties. A composition according to the invention is such that said polymeric compatibilizer includes at least two groups of polar and apolar units compatible with the respectively polymers, and it is characterized in that it comprises the product of a hot compounding reaction, in the presence of a crosslinking system, of said compatibilizer in the crosslinkable state with said thermoplastic polymers, in such a way that only said compatibilizer is crosslinked in said composition.

Abstract: The invention relates to a method for modifying the surface of a membrane by plasma treatment, wherein said method imparts water-repellent and imperviousness properties to said membrane while preserving the steam perviousness and the elastic properties thereof. The method comprises, inter alia, a step of treating the membrane with a plasma of a precursor compound selected from a hydrocarbon gas, a fluorocarbon gas, mixtures thereof, a fluorocarbon liquid, a fluorocarbon solid, wherein the precursor compound is selected in such a way that the F/C ratio is lower than 2, followed by a step of treating the same surface of the substrate from the previous step with a plasma of a fluorocarbon gas selected in such a way that the F/C ratio is at least 2. The invention also relates to the resulting membranes.