| 摘要 |
PROBLEM TO BE SOLVED: To provide an adhesive for a solar cell back sheet good in initial adhesion at manufacturing the solar cell back sheet and adhesive strength to a film after curing, and excellent in long-term weather resistance and hydrolysis resistance, and to provide the solar cell back sheet using the same and a solar cell module using the same.SOLUTION: An adhesive for a solar cell back sheet obtained by a reaction of acrylic polyol (a1) and an isocyanate compound (a2) and having a glass transformation temperature of the acrylic polyol (a1) of 20°C or less is good in initial adhesion at manufacturing the solar cell back sheet and adhesive strength to a film after curing, and excellent in long-term weather resistance and hydrolysis resistance. The adhesive for a solar cell back sheet having a hydroxyl value of the acrylic polyol (a1) of 0.5 to 40 mgKOH/g is preferable. |
