| 摘要 |
PURPOSE:The titled film having excellent transparency, slipperiness, and blocking resistance, obtained by molding a resin composition, consisting of a specified crystalline PP, nucleator, and Si compound, in the form of a film. CONSTITUTION:0.01-1.0pts.wt. nucleator (e.g. sodium adipate), and 0.05-2.0pts. wt. inorganic or organic Si compound having an average diameter of 0.2-5.0mu (e.g. synthetic zeolite) are incorporated into 100pts.wt. crystalline PP, having an intrinsic viscosity [eta] of tetralin solution at 135 deg.C of 1.0-2.0, an isotactic index of at least 98%, to obtain the resin composition. Then, the composition is molded in the form of a film, which is stretched biaxially, 3-7 times longitudinally and 5-15 times transversely, producing a biaxially oriented PP film having a gloss value of at least 145 and a thickness of 5-150mu. |
