| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a removable pressure sensitive adhesive sheet having a rubber adhesive layer excellent in heat resistance and removability on a substrate. <P>SOLUTION: This removable pressure sensitive adhesive sheet includes the substrate and the adhesive layer with a gel fraction of≥50% formed thereon. In the removable pressure sensitive adhesive sheet, the adhesive layer is subjected to irradiation of an active energy ray to crosslink: (A) an uncrosslinked rubber having an unsaturated bond; (B) an electron attractive group-containing multifunctional monomer; and (C) an uncrosslinked rubber material layer containing a polymeric plasticizer with a number average molecular weight of≥3,000. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
