| 摘要 |
Disclosed is a surface protective film which exhibits high adhesion and excellent unwinding characteristics. The surface protective film is characterised in that: the surface protective film comprises at least two layers, which are a surface layer (A) and an adhesive layer (X); the surface layer (A) comprises 0-98 wt% of a propylene (co)polymer (a), and 2-100 wt% of an olefin (co)polymer (b) having an a-olefin with a carbon number of at least 4 as a main constituent (for the purposes of explaining the ratio of (a) to (b), the total of (a) and (b) is made 100 wt%); and the adhesive later (X) is formed from 0-80 wt% of an olefinic elastomer, and 20-100 wt% of a styrene/isobutylene copolymer (in order to explain the ratio of the olefinic elastomer to the styrene/isobutylene copolymer, the total is made 100 wt%). |
