| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solar cell backside protection sheet which is capable of solving a conventional problem, inexpensive, and excel in abrasion resistance, long-term outdoor weathering resistance, and long-term moisture resistance, and to provide a solar cell using the solar cell backside protection sheet. <P>SOLUTION: A solar cell backside protection sheet comprises: a weather resistance resin layer (1) having a film thickness of t (μm), a plastic film (2), and an adhesive layer (3). The weather resistance resin layer (1) is formed on one side of the solar cell backside protection sheet and the adhesive layer (3) is formed on the other side of the solar cell backside protection sheet. The weather resistance resin layer has a specific glass-transition temperature, a specific weight-average molecular weight, and a hydroxyl value. Also, the weather resistance resin layer is formed by a weather resistance resin composition (1') including: an acrylic copolymer (A) with a maximum aromatic ring content of 50 wt.%; a polyisocyanate compound (B); a white pigment (C) having a specific particle size; and other particle (D) having a specific particle size. <P>COPYRIGHT: (C)2012,JPO&INPIT |
