Arkema France

Sk Global Chemical Co., Ltd.

Sk Geo Centric Co., Ltd.

Whitecell Eisenhuth Gmbh & Co. Kg

Solutia Solar Gmbh

Stéphane Bizet

Pierre Gerard

Gregory Scott O'Brien

Dominique Jousset

Jérôme Chauveau

Jean-Jacques Flat

Samuel Devisme

Laurent B Cartier

Anthony Bonnet

Benoît Savignat

Guillaume Jacques

Grégory Schmidt

Mathieu Sabard

Amy A Lefebvre

Grégoire Aussedat

Thomas Fine

Gregory Schmidt

Johann Laffargue

Catherine Corfias-Zuccalli

Thorsten Hickmann

Jerome Chauveau

Aude Lapprand

Nadine Rivas

Julien Le Boterff

Frédéric Godefroy

Nicolas Devaux

Molly Cannet

Grégory S O'BRIEN

Marc Vogt

The invention relates to a fluoropolymer film which makes it possible to manufacture a gelled dense membrane which offers a very good compromise between ionic conductivity and mechanical strength after swelling. This membrane is intended for use as a separator for Li-ion batteries.

Gelled polymer membrane for Li-ion battery

The invention relates to a composition based on a thermoplastic fluoropolymer powder, in particular on polyvinylidene fluoride (PVDF) with improved flowability, particularly suitable for manufacturing parts by 3D laser sintering. The invention also relates to a method for agglomerating powder layer by layer, by melting or sintering using said composition. The invention finally relates to a three-dimensional article obtained by implementing said method.

Fluoropolymer powder adapted for rapid prototyping by laser sintering

The invention relates to a method for producing a composition comprising the steps of: melt-blending a fluorinated polymer, preferably a polyvinylidene fluoride polymer, with a first conductive filler so as to obtain a conductive fluorinated polymer; grinding to powder said conductive fluorinated polymer; mixing the powder of conductive fluorinated polymer with a second conductive filler. The invention also relates to a composition comprising a second conductive filler and particles of conductive fluorinated polymer, wherein the particles of conductive fluorinated polymer comprise a fluorinated polymer matrix in which a first conductive filler is dispersed The invention also relates to a method for producing a bipolar plate and to a bipolar plate.

Compositions for bipolar plates and methods for preparing same

The present invention relates to new compositions for bipolar plates and to methods for manufacturing said compositions. More specifically, the invention relates to a method for manufacturing a composition, comprising the following steps: mixing a thermoplastic polymer in the molten state with a first conductive charge in order to obtain a conductive thermoplastic polymer; grinding said conductive thermoplastic polymer in order to reduce it to a powder; mixing the conductive thermoplastic polymer powder with a second conductive charge.

Compositions for bipolar plates and methods for manufacturing said compositions

The present invention relates to new compositions for bipolar plates and processes for manufacturing said compositions. More particularly, the invention relates to a process for manufacturing a composition, comprising the following steps: —mixing a thermoplastic polymer in the molten state with a first conductive filler in order to obtain a conductive thermoplastic polymer, —grinding said conductive thermoplastic polymer in order to reduce it to powder; —mixing the conductive thermoplastic polymer powder with a second conductive filler.

Compositions for bipolar plates and processes for manufacturing said compositions

An encapsulant of a photovoltaic module, intended for coating a photovoltaic cell, having a composition which does not include any cross-linking agent and including: an ethylene&#x2014;alkyl acrylate copolymer, the copolymer making up 70% to 96% of the weight of the composition; a silane, making up 0.1% to 2% of the weight of the composition; wherein the composition also includes a terpolymer of ethylene&#x2014;acrylic ester&#x2014;maleic anhydride or glycidyl methacrylate, the terpolymer making up 2% to 29.9% of the weight of the composition. Also relates to the use of such an encapsulant in a photovoltaic module as well as to a photovoltaic module including such an encapsulant.

Encapsulant of a photovoltaic module

An impervious breathable film made of a composition that does not include polymers having polyether units and includes one or more polymers, at least one of which is an ethylene copolymer. Said impervious breathable film is moreover made of a comonomer, having the function of an acid or one of the derivatives thereof. In said impervious breathable film, the weight of comonomers, having the function of carboxylic acid or a derivative of said acid, is greater than or equal to 21 wt % in said copolymer. Said impervious film moreover relates to a slip additive. The film has a thickness of 2 to 30 &#x3bc;m. Also, an impervious breathable structure, containing a fibrous material and said film, and moreover relates to a method for manufacturing said structure. Said film and said structure are advantageously usable as an impervious breathable material for, for example, construction siding.

Impervious breathable ethylene copolymer film

An encapsulant of a photovoltaic module, intended for coating a photovoltaic cell (), including: a copolymer of ethylene-alkyl acrylate, the melt flow index (MFI) of the copolymer being 1 g/10 min to 40 g/10 min; and a silane making up 0.1% to 0.5% of the weight of the composition; wherein the encapsulant also includes a cross-linking agent making up 0.1% to 0.5% of the weight of the composition and wherein the copolymer makes up at least 99% of the weight of the composition. Also, a use of such an encapsulant in a photovoltaic module as well as to a photovoltaic module including such an encapsulant.

The present invention relates to a binder which can be used in a lithium-ion battery, comprising at least one polyvinylidene fluoride and at least one acrylic copolymer including monomers having functional groups which have an affinity for metals or are capable of fixing to the metals. According to the invention, in a characteristic manner, said polyvinylidene fluoride is such that a solution of N-methyl-2-pyrrolidone containing 5 wt % of said polyvinylidene fluoride has a viscosity, measured at 23&#xb0; C. with an imposed shear rate of 30 rpm, of 125 mPa&#xb7;s to 1500 mPa&#xb7;s.

Binder containing polyvinylidene fluoride capable of fixing to a metal and associated lithium-ion battery electrode

The invention relates to the field of storing electrical energy in secondary lithium batteries of the Li-ion type. More precisely, the invention relates to an electrode material for a Li-ion battery, to the method for the production thereof, and to the use of same in a Li-ion battery. The invention also relates to Li-ion batteries produced using said electrode material.

Electrodes of li-ion batteries with improved conductivity

A polyamide-grafted polyolefin composition in which the grafting rate of the composition is between 41% and 70% by weight. Also, a thermoplastic composition including a polyolefin backbone comprising a residue of at least one unsaturated monomer (X) and a plurality of polyamide grafts, in which: the polyamide grafts are attached to the polyolefin backbone by the residue of the unsaturated monomer (X) comprising a functional group capable of reacting by a condensation reaction with a polyamide having at least one amine end and/or at least one carboxylic acid end, the residue of the unsaturated monomer (X) is attached to the backbone by grafting or copolymerization, wherein the polyamide grafts represent from 41% to 70%, preferably from 45% to 70%, by mass of said polyamide-grafted polymer. Also, a thermoplastic film for encapsulating and/or protecting the back ('backsheet') of a photovoltaic module that includes said polyamide-grafted polyolefin composition.

Thermoplastic composition having a high polyamide grafting rate

A composition of a blend of polypropylene, which may be present at between 10% and 90% by weight of the blend, and a polymer having a polyolefin core and polyamide grafts, optionally with an EPDM and/or a functional additive, which may be present at between 10% and 90% by weight of the blend. Also, a multilayer structure including a plurality of adjacent layers, at least one of which is the aforementioned composition.

Thermoplastic composition made of polypropylene and polyamide-grafted polyolefin

A thermoplastic composition including a mixture of three particular and different polyolefins, including one of a polyamide-grafted polyolefin having particular polyamide grafts (type and quantity), for example, a polyamide-grafted polymer having a polyolefin trunk containing a residue of at least one unsaturated monomer and a plurality of polyamide grafts. Also, a thermoplastic film and, more specifically, a film for encapsulating a photovoltaic module incorporating the polyamide-grafted polyolefin composition.

Thermoplastic composition, in particular for photovoltaic modules

A composition including at least two grafted copolymers, having a polyolefin trunk and polyamide grafts, the polyamide grafts being 15% to 25% by weight of the composition. Also, a multilayered structure including a plurality of adjacent layers, at least one of which has the above composition. The first grafted copolymer is a polyolefin backbone containing a residue of at least one unsaturated monomer (X) and a plurality of polyamide grafts, the polyamide grafts are attached to the polyolefin backbone by the residue of the unsaturated monomer (X). The second copolymer is a grafted elastomeric copolymer of a polyolefin backbone.

Nanostructured thermoplastic polyamide-grafted polyolefin composition

The invention relates to the use in a photovoltaic module of a film of a composition as a backsheet or as an encapsulant, this composition comprising, with respect to the total weight of the composition: from 1 to 99% of a polyethylene having an ethylene whose level by weight is greater than or equal to 80% chosen from the homopolymers of ethylene and the copolymers of ethylene and another alpha-olefin; from 99 to 1% of a polyolefin B, other than A, carrying a reactive functional group X chosen from the anhydride carboxylic acids and epoxides. The invention further relates to a photovoltaic module comprising the film of the composition according to the invention and also a process for the manufacture of this module.

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Barc, France

Stéphane Bizet