To provide a seal material sheet for solar cells excelling in processability in performing a process such as melting or processing, excelling in light resistance and heat resistance while having high transparency, and high in stability.
This seal material sheet for solar cells contains (A) an ethylene-vinyl acetate copolymer resin and (B) hydrated rosin ester. In (B) hydrated rosin ester, a residual rate R of aromatic rings given by formula (1): residual rate R (%) of aromatic ring=(H-peak area/total H-peak area of aromatic ring)×100 is <1% (in the formula (1), the H-peak area of the aromatic rings is the sum of H-peak areas of 6-8 ppm obtained by 1H-NMR spectrum measurement which measures hydrated rosin ester in heavy chloroform (TMS standard) (in this case, the peak of chloroform being an impurity is excluded), and the total H-peak area is the sum of the H-peak areas derived from hydrogen groups).
NAKATANI TAKASHI
NAKAMOTO CHU
OKAZAKI TAKUMI
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