| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem inherent in PE resins led by ethylene-α-olefin copolymers used as film grades, namely the roughening of the coating surface thereof when applied as coating materials for insulated electric wires or cables due, despite excellent economies, to narrow molecular weight distributions thereof inevitable in cases where strengths and heat sealability are taken into account.SOLUTION: As a polyolefin resin composition including at least one type of polyethylene (PE) resin, a polyolefin resin composition yielding, in a case where the ratio of the melt flow rate (MFR) measured at 190°C under a load of 10 kg (I) with respect to the MFR measured at 190°C under a load of 0.5 kg (I), namely (I/I), is defined as MFRR, a difference of at least 5 in-between the MFRR of the polyolefin resin composition including at least one type of the PE resin and the MFRR of the PE resin is used. |
