| abstract |
The present invention relates to a sheet or board likenmultiple layers laminated polyolefin foam having anplurality of polyolefin layers laminated on at least onenside of a polyolefin foam by a coextrusion method. Morenspecifically, the present invention relates to saidnmultiple layers laminated polyolefin foam, wherein thenthickness of the outermost layer constituting the pluralitynof polyolefin layers is 5 to 80 µm, and the density d (g/L)nof the polyolefin foam, the melt flow rate X (g/10 min) ofnthe polyolefin constituting the innermost layer among thenplurality of polyolefin layers, and the thickness Y (µm) ofnthe innermost layer of the multiple polyolefin layersnsatisfy the following relationships (1) to (4).n Y ≦ 0.29dX n 5 ≦ X ≦ 40 n 70 ≦ Y ≦ 300 n 100 ≦ d ≦ 300 |