| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an adhesive composition capable of producing a surface protecting film having an adhesive force satisfactory even relative to a rough surface, having a small expansion force, suppressing an adhesive acceleration, and suppressing the generation of an adhesive layer residue. <P>SOLUTION: This adhesive composition includes a block copolymer represented by general formula A-B-A, [A-B]<SB POS="POST">n</SB>, or (A-B)<SB POS="POST">x</SB>-Y (where, the block A represents a poly conjugated diene polymer block having a vinyl bond content of 20 mass% or less; the block B represents an aromatic alkenyl compound-conjugated diene copolymer block in which the vinyl bond content of the conjugated diene unit is in a range of 25 to 95 mass%; n represents an integer of 1 to 3; x represents an integer of 2 or larger; and Y represents a coupling agent residue) or a hydrogenated product thereof. <P>COPYRIGHT: (C)2013,JPO&INPIT |
