OLEFIN BASED COMPOSITE RESIN LAMINATED SHEET

PROBLEM TO BE SOLVED: To provide an olefin based composite resin laminated sheet, prominent in draw-down property and having rigidity, transparency, resistance to cold as well as resistance to heat upon manufacturing and the like of a vessel or a lid employed for the field of foodstuff packaging material. SOLUTION: At least either one of the surface layers or the intermediate layer of an olefin based resin laminated sheet is constituted of an olefin based composite resin sheet. The olefin based composite resin laminated sheet is constituted of surface layers, having the density of 1.75 g/cm or less and the melt flow rate of 0.3-20 g/10 min, and the intermediate layer, containing 15 wt.% of polyethylene resin and having the melt flow rate of 10 g/10 min or less and the density of 1.75 g/cm or less while being pinched between the surface layers. In this case, the maximum amount of sagging of the sheet is specified so as to be 30 mm or less when the sheet (sample test piece of 30 cm×30 cm) having the thickness of x mm of central horizontal part, apart from upper and lower heater surfaces, heated to 450 deg.C, by 15 cm, is heated for the period of time of f(x). Here, f(x) is shown by the formula of f(x)=21.8x+19.5.