THERMOPLASTIC RESIN COMPOSITION, SHEET FOR SEALING SOLAR CELL, AND SOLAR CELL

摘要

A thermoplastic resin composition giving a solar cell sealing sheet which, even in a non-crosslinked state, is satisfactory in mechanical strength, solar-cell-sealing properties, transparency, and weatherability. The thermoplastic resin composition comprises: 1-95 wt.% propylene polymer (A) satisfying the following (i) and (ii); and 5-99 wt.% propylene copolymer (B) which is a copolymer of propylene with at least one C_2-20 a-olefin other than propylene and which, when examined with a differential scanning calorimeter (DSC), has a melting point lower than 80°C or has no melting point. (i) When examined with a differential scanning calorimeter (DSC), the polymer has a melting point in the range of 80-135°C and (ii) when examined with a differential scanning calorimeter (DSC), the polymer gives an endotherm curve in which no endotherm attributable to crystal fusion is observed in the region of temperatures not lower than 140°C.