SOLAR CELL BACKSHEET

摘要

Provided is a back sheet for a solar battery which holds an excellent gas barriering property and which is excellent in a weatherability and a light shielding property. It is a back sheet for a solar battery comprising a light shielding colored layer and a weather resistant polyester base resin layer and comprising a gas barriering layer containing a weather resistant coating layer and an inorganic thin film layer provided between the above layers, wherein the weather resistant coating layer comprises at least one selected from (a) a cross-linked product of polycaprolactonepolyol and/or polycarbonatepolyol, (b) a cross-linked product of modified polyvinyl alcohol and (c) an acryl base copolymer having at least one group selected from the group consisting of a UV ray stabilizing group, a UV ray absorbing group and a cycloalkyl group.