Patent application number | Description | Published |
20110303263 | USE OF A POLETHYLENE-BASED FILM IN A PHOTOVOLTAIC MODULE - 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. | 12-15-2011 |
20120152324 | USE OF A POLYETHYLENE-BASED FILM IN A PHOTOVOLTAIC MODULE - 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 also relates to, the composition additionally comprises a polyolefin C, other than B, which carries a functional group Y capable of reacting with the functional group X. The invention further relates to a photovoltaic module comprising the film which is used of the composition and also a process for the manufacture of this module. | 06-21-2012 |
20120186636 | FLUORINATED POLYMER AND ZINC OXIDE FILM FREE OF ANY ACRYLIC ODOR FOR PHOTOVOLTAIC USE - The present invention relates to a polymeric composition composed of a fluoropolymer and of zinc oxide (ZnO) of nanometric size which is intended for the manufacture of films transparent in the visible region and opaque to UV radiation. More particularly, in the composition according to the invention, the said filler is present in a proportion by weight of 0.1 to 10%, preferably of 0.5 to 6%, the ZnO particles have a size ranging from 25 to 40 nm, preferably from 30 to 35 nm, these particles have a surface treatment and the said composition is devoid of acrylic polymers. | 07-26-2012 |
20120260975 | PHOTOVOLTAIC MODULE - 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. | 10-18-2012 |
20130022806 | MULTILAYER FLUORINATED FILMS - The present invention relates to multilayer films made of fluoro polymers, which have properties that make them suitable for use in the agricultural field, especially as greenhouse covering films. According to a first aspect, the invention relates to multilayer fluorinated films comprising at least three layers, including a layer A made of a first vinylidene fluoride copolymer with a crystallization temperature TcA, and a layer B made of a second vinylidene fluoride copolymer with a crystallization temperature TcB, TcA being greater than TcB, layers A and B being alternating, layer A being placed to the exterior and layer B between two layers A. Another subject of the invention relates to the use of the film according to the invention as an agricultural covering material, especially as a greenhouse covering. | 01-24-2013 |
20130034716 | IMPERVIOUS BREATHABLE ETHYLENE COPOLYMER FILM - The invention relates to 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 μm and preferably 5 to 24 μm, for example, 10 to 20 μm. The invention also relates to 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, | 02-07-2013 |
20130053498 | FLUORINATED POLYMER AND ZINC OXIDE FILM FREE OF ANY ACRYLIC ODOR FOR PHOTOVOLTAIC USE - The present invention relates to a process for forming a polymeric composition composed of a fluoropolymer and of zinc oxide (ZnO) of nanometric size from an acrylic masterbatch. The polymeric composition is intended for the manufacture of films transparent in the visible region and opaque to UV radiation. More particularly, in the composition according to the invention, the filler is present in a proportion by weight of 0.1 to 10%, preferably of 0.5 to 6%, the ZnO particles have a size ranging from 25 to 40 nm, preferably from 30 to 35 nm, these particles have a surface treatment and the said composition is devoid of acrylic polymers. | 02-28-2013 |
20130112268 | FILM CONTAINING AN ODOURLESS FLUORINATED ACRYLIC POLYMER FOR PHOTOVOLTAIC USE - The present invention relates to a composition consisting of a fluoropolymer and a white inorganic filler, said composition being intended for the manufacture of monolayer films opaque to visible tight and to UV radiation, useable in particular in the field of photovoltaic cells. The polymeric composition consists of a fluoropolymer and zinc oxide (ZnO), said filler being present in said composition in a weight proportion of 20 to 40%, preferably 20 to 35%. The use of this filler serves on the one hand to avoid the addition of acrylic polymers to the fluoropolymer, and on the other hand, to use processing temperatures that are compatible with the manufacture of a monolayer film by extrusion blow moulding, that is, a temperature of about 220 to 260° C., thereby serving to prevent the degradation of the fluoropolymer. | 05-09-2013 |
20130319510 | FLUOROPOLYMER-BASED FILM FOR PHOTOVOLTAIC APPLICATION - 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. | 12-05-2013 |
20140000707 | DOUBLE-LAYER FILM OF A PHOTOVOLTAIC MODULE | 01-02-2014 |
20140014180 | ENCAPSULANT FOR A PHOTOVOLTAIC MODULE - 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. | 01-16-2014 |
20140026960 | ENCAPSULENT FOR A PHOTOVOLTAIC MODULE - 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. | 01-30-2014 |
20140044976 | USE OF A MULTILAYER PVC/FLUORINATED POLYMER STRUCTURE FOR PROTECTING THE REAR OF SOLAR PANELS - 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. | 02-13-2014 |
20140332063 | MULTILAYER POLYAMIDE FILM FOR REAR PANEL OF PHOTOVOLTAIC MODULE - 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. | 11-13-2014 |