| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface protective film capable of being suppressed in blocking even if pressure-sensitive adhesive strength is planned high while holding good productivity and film forming properties due to a coextrusion multilayer lamination method, capable of keeping a pressure-sensitive adhesive surface clean until use, having sufficient pressure-sensitive adhesive strength with respect to an adherend and capable of smoothly peeling a peeling layer at the time of use. SOLUTION: The surface protective film is constituted by laminating the peeling layer (A) comprising a polyamide resin, a pressure-sensitive adhesive layer (B) comprising an amorphousα-olefinic polymer and a propylene polymer and a base material layer (C) comprising a thermoplastic resin in an order of (A)/(B)/(C) by the coextrusion multilayer lamination method. COPYRIGHT: (C)2007,JPO&INPIT
|
