Patent ID: 7901991

Claim:
A method for manufacturing a photovoltaic panel comprising one or more photovoltaic elements confined by two supports, wherein said supports, before being subjected to a thermosealing process, are joined together in proximity of the edge by means of three superimposed polymeric layers stacked in a direction perpendicular to the photovoltaic panel and having a H 2 O transmission lower than 10 g m −2 d −1 mm at 25° C. and 60% RH and a softening or melting temperature lower than 170° C., in which the two outermost layers are in contact with said supports and are composed of a polymeric material essentially without getter material, whereas the central layer is in contact with the outermost layers only and is composed of a composite getter system for H 2 O sorption, with the weight percentage of the H 2 O sorber inside said composite getter system being between 10 and 60 wt %.