Abstract: This is a resin composition for a film containing an ionomer which comprises, in a copolymer (P) containing a structural unit (A) derived from ethylene and/or an ?-olefin having 3 to 20 carbon atoms, and a structural unit (B) derived from a monomer having a carboxyl group(s) and/or a dicarboxylic anhydride group(s) as essential constitutional units, at least a part of the carboxyl groups and/or the dicarboxylic anhydride groups in the copolymer (P) being converted into a metal-containing carboxylic acid salt(s) containing at least one kind of a metal ion(s) selected from Group 1, Group 2 or Group 12 of the periodic table, and having a phase angle ? at an absolute value G*=0.1 MPa of a complex modulus of elasticity measured by a rotary rheometer of 50 degrees to 75 degrees, and a molded body molded by using the same.

Abstract: A polyethylene for a pipe and a joint of the present invention satisfies the following characteristics (1) to (5): Characteristic (1): a melt flow rate at a temperature of 190° C. and a load of 21.6 kg (HLMFR) is 5 to 20 g/10 minutes, Characteristic (2): a density (D) is 0.954 to 0.960 g/cm3, Characteristic (3): a ratio of weight-average molecular weight (Mw) and number-average molecular weight (Mn) (Mw/Mn) measured by gel permeation chromatography (GPC) is 15 to 27, Characteristic (4): a rupture time at 80° C. and 5 MPa by a full notch creep test (FNCT) is 150 hours or more, and Characteristic (5): a Charpy impact strength (CIS) measured at ?20° C. is 8.5 kJ/m2 or more.

Abstract: A polyethylene for a pipe and a joint of the present invention satisfies the following characteristics (1) to (5): Characteristic (1): a melt flow rate at a temperature of 190° C. and a load of 21.6 kg (HLMFR) is 5 to 20 g/10 minutes, Characteristic (2): a density (D) is 0.954 to 0.960 g/cm3, Characteristic (3): a ratio of weight-average molecular weight (Mw) and number-average molecular weight (Mn) (Mw/Mn) measured by gel permeation chromatography (GPC) is 15 to 27, Characteristic (4): a rupture time at 80° C. and 5 MPa by a full notch creep test (FNCT) is 150 hours or more, and Characteristic (5): a Charpy impact strength (CIS) measured at ?20° C. is 8.5 kJ/m2 or more.

Abstract: A polyethylene-based resin molding material having an ethylene-based polymer in an amount from ?20% to <30% by weight that has a high load melt flow rate (HLMFR) at a temperature of 190° C. under a load of 21.6 kg of 0.1 to 1.0 g/l0 min and a density of 0.910 to 0.930 g/cm3; and an ethylene-based polymer in an amount from >70% to ?80% by weight that has a melt flow rate (MFR) at a temperature of 190° C. under a load of 2.16 kg of ?150 g/10 min to <400 g/10 min and a density of ?0.960 g/cm3; and wherein the polyethylene-based resin molding material has an MFR from ?0.4 g/10 min to <2.0 g/10 min, an HLMFR from ?70 g/10 min to <180 g/10 min, an HLMFR/MFR of 100 to 200, and a density from ?0.953 g/cm3 to <0.965 g/cm3.