ETHYLENE-alpha-OLEFIN COPOLYMER, THERMOPLASTIC RESIN COMPOSITION, FILM, AND LAMINATE

An ethylene-α-olefin copolymer (A) which is a copolymer of ethylene and one or more α-olefins having 4 to 10 carbon atoms, and which satisfies the following requirements (1) to (7):

• (1) the density is in a range of 890 kg/m3 or more and 925 kg/m3 or less;
• (2) the melt flow rate (MFR) at 190° C. under a load of 2.16 kg is in a range of 3.0 g/10 min or more and 15.0 g/10 min or less;
• (3) the ratio [MT/η* (g/P)] of the melt tension [MT (g)] at 190° C. to the shear viscosity [η* (P)] at 200° C. at the angular velocity of 1.0 rad/s is in a range of 1.40×10−4 or more and 2.90×10−4 or less;
• (4) the zero shear viscosity [η0 (P)] at 200° C. and the weight average molecular weight (Mw) as measured by GPC-viscometry (GPC-VISCO) satisfy the following equation (Eq-1):
• 0.01×10−13×Mw3.4≤η0≤4.5×10−13×Mw3.4 (Eq-1);
• (5) the number average molecular weight (Mn), the weight average molecular weight (Mw), and the Z average molecular weight (Mz) as measured by GPC-viscometry (GPC-VISCO) satisfy the following equation (Eq-2):
• −2.0≤Mz/Mw−Mw/Mn≤15 (Eq-2);
• (6) the total number of vinyls, vinylidenes, disubstituted internal olefins, and trisubstituted internal olefins per 1000 carbon atoms (number/1000 C) as measured by 1H-NMR is in a range of 0.1 or more and 1.0 or less;
• and
• (7) a plurality of peaks is present in a melting curve obtained by differential scanning calorimetry (DSC).