Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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—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—acrylic ester—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.

Abstract: An encapsulant of a photovoltaic module, intended for coating a photovoltaic cell (10), 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.

Abstract: 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.

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.

Abstract: 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.

Abstract: The present invention relates to a composition comprising at least two grafted copolymers having a polyolefin basic polymer chain and polyamide grafts, the polyamide grafts being 5 wt % and 35 wt % of the composition bonded to the first and second copolymer as well as a third component selected among certain polyamides, polyethylenes or polypropylenes or a mixture thereof. The invention also relates to a multilayer structure comprising a plurality of adjacent layers, at least one of which consists of the aforementioned composition.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The use of a multilayer polyamide film as a rear protective sheet in a photovoltaic module. Also, a photovoltaic module containing photovoltaic cells protected by an encapsulant, a front protective layer, and a rear protective layer, wherein the rear protective layer is formed by a multilayer polyamide film including: a CA layer including, as predominant polymer, at least one polyamide A exhibiting a mean number of carbon atoms per nitrogen atom of between 4 and 8, a CB layer including: (a) as predominant polymer, at least one polyamide B exhibiting a mean number of carbon atoms per nitrogen atom of between 8 and 15, the polyamide(s) B exhibiting a mean number of carbon atoms per nitrogen atom which is strictly greater than the mean number of carbon atoms per nitrogen atom of the polyamide(s) A, and (b) at least one additive for combating UV radiation.

Abstract: The invention relates to a multilayer film of A/B/C structure comprising: a first layer of composition A, comprising a fluoropolymer; a second layer of composition B, comprising a filled fluoropolymer; and a third layer of composition C, comprising a fluoropolymer, characterized in that the first and third layers have a melting point above 150° C., measured by DSC, and in that the transmittance in visible light is less than 30% for a multilayer film thickness of 25 ?m. The invention also relates to the use of a fluoropolymer-based film preferably for a photovoltaic cell back panel, a high-performance textile or a metal, the film adhering to the substrate by means of an adhesive layer placed between the substrate and the film.

Abstract: The present invention relates to a photovoltaic module comprising as an encapsulant a composition comprising at least one polyacrylate- or polymethacrylate-type block copolymer with the general formula B-(A)n, n being a natural integer no lower than one, preferably 1 to 8, the block A being selected from among methacrylates having a Tg higher than 0° C., the block B being a polyacrylate or a polymethacrylate having a Tg lower than 0° C., the block B being at least 50 wt % of the total weight of the block copolymer.

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.

Abstract: An encapsulant for a photovoltaic module, intended to coat a photovoltaic cell, including at least two adjacent thermoplastic layers together forming a core-skin assembly: the skin layer is a polyamide graft polymer including a polyolefin backbone representing 50 wt % to 95 wt % of the polyamide graft polymer, containing a residue of at least one unsaturated monomer (X) and at least one polyamide graft, representing 5 wt % to 50 wt % of said polyamide graft polymer; the polyolefin backbone and the polyamide graft of the skin layer are chosen so that the polyamide graft polymer has a flow temperature greater than or equal to 75° C. and less than or equal to 160° C., this flow temperature being defined as the highest temperature out of the melting temperature and the glass transition temperature of the polyamide graft and of the polyolefin backbone.

Abstract: An encapsulant for a photovoltaic module, intended to coat a photovoltaic cell, including at least two adjacent thermoplastic layers forming a core-skin assembly, wherein the skin layer consists of a polyamide-grafted polymer including a polyolefin backbone, representing from 50% to 95% by weight of the polyamide-grafted polymer, containing a residue of at least one unsaturated monomer (X) and at least one polyamide graft, representing from 5% to 50% by weight of polyamide-grafted polymer, the core layer including a polyethylene chosen from a homopolymer of ethylene or a copolymer including at least 50 mol % of ethylene and one or more comonomers. Also, a photovoltaic module incorporating such an encapsulant.

Abstract: A double-layer thermoplastic film of a photovoltaic module, including two layers, one forms the encapsulator and the other forms the backsheet, wherein: a) the encapsulator is a layer including at least one polyolefin containing a polyethylene selected from a homopolymer of ethylene or a copolymer comprising at least 50 mol % of ethylene and at least one comonomer and between 0% and 100% of a polyamide grafted polymer comprising a polyolefin trunk that represents between 50 mass % and 95 mass % of the polyamide grafted polymer containing a radical of at least one unsaturated monomer (X) and at least one polyamide graft that represents between 5 mass % and 50 mass % of said polyamide grafted polymer; and b) the backsheet comprises a layer formed from a polyamide grafted polymer that is identical to that of the encapsulator except that it has a flow temperature higher than 160° C.

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.