METHOD FOR PRODUCING RESIN COMPOSITION FOR SOLAR CELL SEALING MATERIAL, RESIN COMPOSITION FOR SOLAR CELL SEALING MATERIAL, SOLAR CELL SEALING MATERIAL, AND SOLAR CELL MODULE

摘要

An object of the present invention is to provide a method for producing a resin composition for solar cell sealing material which is capable of lowering a cost by shortening of a processing time and has good storage stability. Further, another object of the present invention is to provide a solar cell sealing material having excellent transparency due to no generation of lumps therein by using the obtained resin composition for solar cell sealing material. A method for producing a resin composition for solar cell sealing material according to the present invention includes: preparing an ethylene-vinyl acetate copolymer (A) containing a vinyl acetate unit in an amount of 25 to 35 wt% and a crosslinking agent (B), whose impregnation weight with respect to 1 g of the ethylene-vinyl acetate copolymer (A) per 24 hours at a temperature of 23°C is in the range of 40 to 80 mg, as raw components; and impregnating the crosslinking agent (B) into the ethylene-vinyl acetate copolymer (A) at a temperature of 15 to 80°C.