| 摘要 |
PROBLEM TO BE SOLVED: To make a self-adhesive sheet having excellent durability.SOLUTION: A self-adhesive sheet 1 contains a resin obtained by allowing an acrylic copolymer having a nitrogen-containing functional group and a crosslinkable functional group to react with a crosslinking agent as an essential component and has ≤-35°C glass transition temperature, 20,000-400,000 Pa storage modulus (A) at 25°C, 10,000-200,000 Pa storage modulus (B) at 90°C and a ratio of the storage modulus (B)/the storage modulus (A) of 0.25-0.50 or ≤80,000 Pa storage modulus (A) and the storage modulus (B) equal to or above 10,000 Pa and equal to or below the storage modulus (A). |
