| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot melt seal composition used in a flexible solar cell module having two sheets disposed with a fixed gap therebetween and a solar cell element layer and an encapsulation resin layer arranged in the gap, the solar cell module whose inner face at an end of a front sheet is a PET film having an untreated surface, the hot melt seal composition that seals the end maintaining sufficient adhesiveness, that has appropriate flow property at a melting temperature of a seal material, and that is excellent in insulation property, waterproofness, vapor barrier property, and durability.SOLUTION: A hot melt seal composition includes: polyisobutylene of weight average molecular weight of 100-300 thousand; terpene phenol resin; a desiccant made of at least quicklime or zeolite; polyolefin including at least amorphous polyolefin or silane-modified amorphous polyolefin; and a filler. |
