| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a manufacturing method of resin composition for solar cell sealing material which includes an ethylene-α-olefin copolymer, a silane coupling agent, and a high-molecular weight type hindered amine light stabilizer, where the high-molecular weight type hindered amine light stabilizer has high dispersibility. <P>SOLUTION: A manufacturing method of resin composition for solar cell sealing material is characterized in that a high-molecular weight type hindered amine light stabilizer (C) is supplied by a master batch in combining an ethylene-α-olefin copolymer (A) having a density of 0.860 to 0.920 g/cm<SP POS="POST">3</SP>(characteristics(a1)) with a silane coupling agent (B) and the high-molecular weight type hindered amine light stabilizer (C). It is preferable that the ethylene-α-olefin copolymer constituent (A) has the following characteristics (a2) to (a4): (a2) the ratio (Mz/Mn) of Z average molecular weight (Mz) to number-average molecular weight (Mn) acquired by a gel permeation chromatography (GPC) is 8.0 or less; (a3) the melt viscosity measured at 100°C under a shearing speed of 2.43×10s<SP POS="POST">-1</SP>is 9.0×10<SP POS="POST">4</SP>poise or less; and (a4) the melt viscosity measured at 100°C under a shearing speed of 2.43×10<SP POS="POST">2</SP>s<SP POS="POST">-1</SP>is 1.8×10<SP POS="POST">4</SP>poise or less. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
