Patent ID: 6693237
Filing Date: 2004-02-17
Classification: B32B,H01L,Y02B,Y02E

Abstract:
A solar cell module comprising a photovoltaic element arranged between a surface covering material and a back face covering material, said photovoltaic element being sealed by a sealing material between said surface covering material and said back face covering material, wherein said sealing material consists of a sealing composition consisting of a polymer blend or a polymer alloy, said polymer blend or said polymer alloy consisting of one polyolefin series copolymer and one crystalline polyolefin, and wherein said polyolefin series copolymer has a fusing point Ta by a differential scanning calorimetry (DSC) which falls in a range of from 50 to 110Â° C. and said crystalline polyolefin has a fusing point Tb by a differential scanning calorimetry (DSC) which falls in a range of from 110 to 170Â° C., and said one polyolefin series copolymer is selected from the group consisting of ethylene-vinyl acetate copolymer, ethylene-acrylate ester copolymer, ethylene-methacrylate ester copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-acrylate ester multi-copolymer, ethylene-methacrylate ester multi-copolymer, ethylene-acrylic acid multi-copolymer, and ethylene-methacrylic acid multi-copolymer.