| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a surface protecting sheet prepared by forming a film according to coextrusion of a substrate layer and a pressure-sensitive adhesive layer and having good unwinding properties from a roll etc., a smooth surface of the pressure-sensitive adhesive layer and good adhesiveness thereof to a rough surface without transfer of a mold release component and without causing problems of staining properties. <P>SOLUTION: The surface protecting sheet has the pressure-sensitive adhesive layer on one surface of the substrate layer containing a thermoplastic resin and a back surface treated layer containing a polyethylenic resin on the other surface. The substrate layer, pressure-sensitive adhesive layer and the back surface treated layer are integrally formed by the coextrusion. The pressure-sensitive adhesive layer contains≥50 wt.% of an amorphous polyolefinic elastomer. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
