| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin composition for crosslinking/foam-molding, with which a crosslinked and foam-molded article having fatigue resistance and lightness in a good balance can be produced.SOLUTION: The resin composition for crosslinking/foam-molding comprises a resin component, a foaming agent, and a crosslinking agent, wherein the resin component is an ethylene/α-olefin copolymer that comprises monomer units based on ethylene and monomer units based on an α-olefin having 3 to 20 carbon atoms and satisfies all of the following requirements (1) to (5): (1) a density of 860-950 kg/m; (2) a melt flow rate (MFR) of 0.01-10 g/10 min; (3) a ratio of weight-average molecular weight (Mw) to number-average molecular weight (Mn), Mw/Mn, of 5.5-30; (4) a ratio of Z-average molecular weight (Mz) to weight-average molecular weight (Mw), Mz/Mw, of 2-4; and (5) a melt tension (MT) of 8 cN or higher. |
