BLENDED POLYMER CONTAINING ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER, MOLDED PRODUCT OF SUCH BLENDED POLYMER, BACK SHEET FOR SOLAR CELL, AND METHOD FOR PRODUCING THE MOLDED PRODUCT

摘要

To provide a blended polymer containing an ethylene/tetrafluoroethylene copolymer, which is excellent in weather resistance and has a high thermal deformation temperature, a molded product such as a film thereof, a back sheet for a solar cell provided with such a film, etc., and a method for producing such a molded product. A blended polymer which comprises an ethylene/tetrafluoroethylene copolymer and a polymethyl methacrylate, wherein the mass ratio of the ethylene/tetrafluoroethylene copolymer to the total mass of the ethylene/tetrafluoroethylene copolymer and the polymethyl methacrylate, is from 50 to 75%, and which has a microphase-separated structure wherein the continuous phase is the ethylene/tetrafluoroethylene copolymer, and the dispersed phase is the polymethyl methacrylate.