Composition for solar cell sealing film, solar cell sealing film and solar cell using the sealing film

A composition for a solar cell sealing film comprising ethylene-polar monomer copolymer, a crosslinker and a compound having an alkyleneoxy group,

• wherein the compound having an alkyleneoxy group is represented by the following formula (1):
• in which R2 represents a substituted or unsubstituted alkylene group, R3 represents a hydrogen atom or a methyl group, n is an integer of 1 to 30, m is an integer of 1 to 3, R1 represents an alkoxy group, an aryloxy group, a phosphoric acid group, a phosphate ester group, a methacryloyl-ethoxy phosphoric acid group, a acryloyl-ethoxy phosphoric acid group, an acryloyloxy group or a methacryloyloxy group provided that m is 1, R1 represents a divalent aliphatic hydrocarbon group provided that m is 2, and R1 represents a trivalent aliphatic hydrocarbon group provided that m is 3,
• wherein the compound having an alkyleneoxy group is contained in an amount of 0.05 to 0.6 parts by weight based on 100 parts by weight of the ethylene-polar monomer copolymer, and
• wherein triallyl isocyanurate is further contained in an amount of 0.1 to 3.0 parts by weight based on 100 parts by weight of the ethylene-polar monomer copolymer.