| 摘要 |
Provided is a back sheet for a solar battery that is low in production costs, excellent in adhesive properties between individual constituting members thereof, and further excellent in weather resistance and water-vapor-barrier performance. The sheet is a back sheet having a laminated structure including at least three layers. First one of the layers is a weather-resistant polyester resin film or a fluororesin film; second one thereof is a polyolefin layer which is made of a modified polyolefin resin yielded by grafting 1 to 30 parts by weight of an epoxy-group-containing vinyl monomer and 0.1 to 30 parts by weight of an aromatic vinyl monomer to 100 parts by weight of polyethylene, polypropylene or an ethylene/propylene copolymer, and which has a thickness of 5 to 250 µm; and third one thereof is a polyester layer, a polyolefin layer, or an aluminum foil piece. The second layer and the third layer have a total thickness of 30 µm or more. |
