| 摘要 |
<p>PURPOSE:To provide the titled resin composition having excellent processability and mechanical properties, by mixing a relatively high molecular weight ethylene-alpha-olefin copolymer with a relatively low molecular weight ethylene-alpha-olefin copolymer in a specific mixing ratio. CONSTITUTION:10-70wt% copolymer of ethylene and 3-18C alpha-olefin (A) having a density of 0.895-0.935g/cm<3>, an intrinsic viscosity of 1,2-6dl/g, and the number of short branched chains per 1,000 carbons (a degree of short chain branching) of 7-40 and 90-30wt% copolymer of ethylene and 3-18C alpha-olefin (B) having a density of 0.91-0.955g/cm<3>, an intrinsic viscosity of 0.3-1.5dl/g, and a degree of short chain branching of 5-35 are mixed in a ratio of the degree of short chain branching of component A to that of components B of 0.6 or more and in a ratio of the intrinsic viscosity of component A to that of component B of 1.5 or more to provide the titled resin composition having a density of 0.91- 0.94g/cm<3>.</p> |
