| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an adhesive composition enabling manufacturing of a sheet for protecting a rear face of a solar cell which exhibits a high adhesion between various sheet-like members, specifically between layers including PET film layers, and can retain the high adhesion even when exposed to an environment of high temperature and high humidity. <P>SOLUTION: The adhesive composition includes polycarbonate urethane polyol (A) and polyisocyanate (B) so that the molar ratios of the isocyanate group and hydroxyl group fall within a specified range, wherein the polycarbonate urethane polyol (A) is a specific molecular weight of the polycarbonate urethane polyol (A) with a specific glass transition temperature including liquid polycarbonate polyol(C) containing a specific amount of diol units consisting of straight chain alkylene diol and diisocyanate (D) as its constituents. <P>COPYRIGHT: (C)2013,JPO&INPIT |
