| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface protection film having an appropriate adhesive force, easy to extend in case made into a roll, and capable of manufacturing in a relatively simple process. SOLUTION: This surface protection film comprises a first layer, a second layer, and an adhesive layer and is integrated into a laminate in this order. The first layer comprising a low density polyethylene with a thickness of 5μm and the second layer comprising a random polypropylene with a thickness of 35μm are laminated and form a substrate layer with a tensile modulus of elasticity of 49,000 N/cm2, and the adhesive layer (10μm thick) contains 100 parts hydrogenated product (SEBS) of a styrene/butadiene/styrene copolymer (SBS) and 50 parts alicyclic hydrogenated petroleum resin.
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