| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface protection pressure-sensitive adhesive sheet in which even when being applied to an adherend having unevenness on the surface, there is no paste remainder after the release, unwinding from a winding state can be performed smoothly, the development is excellent, and float from the adherend is extremely reduced.SOLUTION: The surface protection pressure-sensitive adhesive sheet includes: a substrate sheet including a polyolefin resin; and a pressure-sensitive adhesive layer that is laminated and integrated on the substrate sheet and contains an acrylic pressure-sensitive adhesive. The acrylic pressure-sensitive adhesive includes: 100 pts.wt. of an acrylic resin including 50-95 wt.% of a block copolymer (I) shown by the general formula A-B-A, and 5-50 wt.% of a block copolymer (II) shown by the general formula A-B; and 1-50 pts.wt. of a tackifier resin, wherein the weight average molecular weight of the block copolymer (I) and the block copolymer (II) is 50,000-300,000 on a polystyrene conversion basis and the molecular weight distribution is 1.1-2.8. |
