A MULTILAYER TRANSPARENT POLYESTER FILM, METHOD FOR MANUFACTURING SAID FILM AND USE OF SAID FILM IN PARTICULAR IN THE BACKSHEETS OF PHOTOVOLTAIC PANELS

The invention relates to a biaxially oriented multilayer transparent film comprising at least two layers of polyester, respectively a core layer and at least one outer layer, which can be identical or different, wherein: i) at least the core layer comprises at least one biaxially oriented transparen...

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Bibliographische Detailangaben
1. Verfasser:	LACRAMPE, VALÉRIE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS SEMICONDUCTOR DEVICES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a biaxially oriented multilayer transparent film comprising at least two layers of polyester, respectively a core layer and at least one outer layer, which can be identical or different, wherein: i) at least the core layer comprises at least one biaxially oriented transparent polyester PE1, more preferably an aromatic polyester, and, further more preferably, a polyethylene terephthalate, ii) at least one of the outer layers comprises, on the one hand, at least one biaxially oriented polyester PE2, more preferably an aromatic polyester, and, further more preferably, a polyethylene terephthalate, and, on the other hand, particles coming from the reaction between at least one metal compound and at least one monomeric or oligomeric unit of PE2, said particles having more preferably a d50 -as μm and following an order of preference - between 0.5 and 5; between 1.0 and 4, and between 1.5 and 3.0. The invention also relates to the manufacture of this film and its applications as a laminate in particular in the backsheets of photovoltaic cells. L'invention concerne un film transparent multicouche à orientation biaxiale comprenant au moins deux couches de polyester, respectivement une couche centrale et au moins une couche extérieure, qui peuvent être identiques ou différentes : i) au moins la couche centrale comprenant au moins un polyester (PE1) transparent orienté biaxialement, plus préférentiellement un polyester aromatique, et encore plus préférentiellement, un téréphtalate de polyéthylène, ii) au moins une des couches extérieures comprenant, d'une part, au moins un polyester (PE2) orienté biaxialement, plus préférentiellement un polyester aromatique, et, encore plus préférentiellement, un téréphtalate de polyéthylène, et, d'autre part, des particules provenant de la réaction entre au moins un composé métallique et au moins un motif monomère ou oligomère de PE2, lesdites particules présentant idéalement un d50 - en μm et selon un ordre de préférence - compris entre 0,5 et 5 ; compris entre 1,0 et 4, et compris entre 1,5 et 3,0. L'invention concerne également la production de ce film et ses applications comme stratifié en particulier dans les feuilles de support de cellules photovoltaïques.