| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a resin composition for a transparent elastically recoverable film or sheet containing well-balanced propylene/ethylene copolymer having a good balance between elastic recovery and heat resistance, being excellent in transparency, alleviated in appearance defects such as whitening upon release from the state of being stuck, and being capable of being endowed with low-temperature characteristics. <P>SOLUTION: What is provided is a propylene/ethylene copolymer satisfying the following requirements: (1) [EEE] triad chain fraction≤0.1 (mol%), (2) product of the reactivity ratio of ethylene and the reactivity ratio of propylene≥0.5, (3) molecular weight distribution≤3.5, (4) a melting enthalpy of 10 to 60 J/g, (5) melting point≥105°C, and (6) ethylene content≤10 mol%; a resin composition containing a combination of 60 to 95 mass% above propylene/ethylene copolymer with 5 to 40 mass% polyethylene having a density of 0.860 to 0.920 g/cm<SP>3</SP>; and a wrap film comprising the resin composition. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
