| 摘要 |
PROBLEM TO BE SOLVED: To prevent the poor appearances due to the exposure of a foam layer at its section and the tearing off of a skin material from developing in a forming laminated sheet used for forming a covering layer on the surface of aggregate. SOLUTION: This sheet is produced by pasting a skin material 6 on one side of a polypropylene-based resin foam 5 having the closed cell percentage of 70% or more and the gel fraction of 40wt.% or more and has excess portion to be cut off after covering the surface of aggregate 7. In addition, this is so locally compressed that the thickness of the foam at the position, which is specified to be cut off, is set to be 60% or less of the thickness of the foam except the above-mentioned position. |
