| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a surface protection sheet the base material layer and self-adhesive layer of which are formed by a co-extrusion process, the base material layer of which is subjected to release treatment and which has an excellent unwinding property from a roll or the like and is free from such a contamination problem that a mold releasing component is transferred to the self-adhesive layer. <P>SOLUTION: The surface protection sheet is produced by forming the base material layer containing a polyolefin resin and the self-adhesive layer containing thermoplastic elastomer by the co-extrusion process, and successively forming a mold release layer by a mold releasing agent on the opposite surface of the base material layer to the self-adhesive layer-attached surface. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
