| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a double-sided adhesive sheet excellent in both waterproof property (water stopping property) and impact resistance. <P>SOLUTION: The present invention relates to a double-sided adhesive sheet including a polyolefin foam substrate and an acrylic adhesive layer on both surfaces of the polyolefin foam substrate, wherein the polyolefin foam substrate has a volume percentage of closed cells of 70% or more and a degree of crosslinking of from 3 to 60 wt.%. The acrylic adhesive layer is formed from an adhesive composition containing: an acrylic polymer formed by including, as an essential monomer component, an alkyl (meth)acrylate having a linear or branched alkyl group; and a tackifying resin. <P>COPYRIGHT: (C)2013,JPO&INPIT |
