| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an adhesive composition which exhibits a high adhesive force between various types of sheet-form members, particularly between layers containing a plastic film-surface treated layer, is capable of maintaining a high adhesive force even if exposed to a high-temperature high-humidity environment, and is suitable for production of a back surface protecting sheet for a solar cell. <P>SOLUTION: The adhesive composition for a laminate sheet includes an acryl polyol (A) and a polyisocyanate (B), wherein the number-average molecular weight of the acryl polyol (A) is 10,000 to 100,000; the hydroxyl value thereof is 1 to 100 mgKOH/g; and the glass transition temperature (Tg) thereof is >-40°C and ≤10°C. The equivalent weight ratio NCO/OH of the hydroxyl group originated from the acryl polyol (A) and the isocyanate group originated from the polyisocyanate (B) is 0.1 to 3. <P>COPYRIGHT: (C)2013,JPO&INPIT |
