| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surface protection adhesive film for a polyolefin base material layer having moderate peeling force. <P>SOLUTION: An adhesive for a protective film having moderate peeling force, and comprising a composition of a polymer (I): a block copolymer constituted of a following polymer block A and a following polymer block B or a hydrogenated product thereof, and a polymer (II): a copolymer constituted of a following polymer block C and a following polymer block D, can be obtained by setting the content of the polymer (I) at 10-40 wt.%, wherein polymer block A is a polymer block mainly composed of an aromatic alkenyl compound unit, polymer block B is an aromatic alkenyl-conjugated diene copolymer block containing a conjugated diene unit and an aromatic alkenyl compound unit at random, polymer block C is a polymer block mainly composed of a methacrylic acid ester block, and polymer block D is a polymer block mainly composed of an acrylic acid ester block. <P>COPYRIGHT: (C)2012,JPO&INPIT |
