Patent ID: 8791182

Claim:
A solar cell sealing film obtained from a composition consisting essentially of: ethylene-vinyl acetate copolymer, an organic peroxide, a silane-coupling agent, and a phosphite compound, wherein the phosphite compound is triisodecyl phosphite, wherein the organic peroxide is 2,5-dimethyl-2,5-di(2-ethylhexanoylperoxy)hexane, wherein the silane-coupling agent is γ-methacryloxypropyl trimethoxysilane, the organic peroxide is contained in an amount of 1.3 to 1.8 parts by weight based on 100 parts by weight of the ethylene-vinyl acetate copolymer, the silane-coupling agent is contained in an amount of 0.05 to 1 part by weight based on 100 parts by weight of the ethylene-vinyl acetate copolymer and the phosphite compound is contained in an amount of 0.05 to 1 part by weight based on 100 parts by weight of the ethylene-vinyl acetate copolymer, and wherein the content of the vinyl acetate recurring unit of the ethylene-vinyl acetate copolymer is in the range of 20 to 35% by weight.