Jsp Corporation

Takashi Muroi

Hirotoshi Kakuta

Kazuhiko Morita

The present invention relates to a sheet or board like multiple layers laminated polyolefin foam having a plurality of polyolefin layers laminated on at least one side of a polyolefin foam by a coextrusion method. More specifically, the present invention relates to said multiple layers laminated polyolefin foam, wherein the thickness of the outermost layer constituting the plurality of polyolefin layers is 5 to 80 &#x3bc;m, and the density d (g/L) of the polyolefin foam, the melt flow rate X (g/10 min) of the polyolefin constituting the innermost layer among the plurality of polyolefin layers, and the thickness Y (&#x3bc;m) of the innermost layer of the multiple polyolefin layers satisfy the following relationships (1) to (4).Y&#x2266;0.29dX&#x2003;&#x2003;(1)5&#x2266;X&#x2266;40&#x2003;&#x2003;(2)70&#x2266;Y&#x2266;300&#x2003;&#x2003;(3)100&#x2266;d&#x2266;300&#x2003;&#x2003;(4)

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Kanuma, Japan

Takashi Muroi