| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an adhesive, capable of peeling the end of the surface protection adhesive film easily from an adherend, even when a blanked piece is obtained by blanking from a laminate of the adherend and the surface protection adhesive film; and to provide a surface protection adhesive film. <P>SOLUTION: This adhesive composition contains a copolymer (which may contain a coupling agent residue) containing a polymer block A mainly composed of an aromatic alkenyl compound unit and an aromatic alkenyl-conjugated diene copolymer block B containing conjugated diene units and aromatic alkenyl compound units at random, or its hydrogenated product, wherein, the aromatic alkenyl compound unit content rate (St(A+B)) in the whole polymer is 30-50 wt.%, and the weight ratio (A:B) of the total amount of the polymer block A to the total amount of the polymer block B is in the range of 5:95 to 25:75, and further at least either of an imine-based compound and fatty acid amide is contained. <P>COPYRIGHT: (C)2012,JPO&INPIT |
