| 摘要 |
PURPOSE: To obtain an acrylic self-adhesive sheet excellent in the strength of adhesion to an object having a high polar surface energy. CONSTITUTION: This sheet is obtd. by forming an acrylic pressure-sensitive adhesive layer on a substrate, and the substrate has a 10-sec shear creep compliance of 0.1×10<-6> -2×10<-6> cm<2> /dyn at 20 deg.C, while the adhesive layer has a 10-sec shear creep compliance of 2×10<-6> -3.5×10<-6> cm<2> /dyn at 20 deg.C and a polar component of surface free energy of 6-12dyn/cm.
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