A laminate comprising a sealant layer and an intermediate layer disposed in contact with the sealant layer, wherein: the sealant layer comprises an ethylene/α-olefin copolymer satisfying the following requirements to: the copolymer is a copolymer of ethylene and a C3-C20 α-olefin, the melt flow rate measured at 190°C under 2.16 kg load is 1 to 50 g/10 min according to the method JIS K7210-1, the density is 890 to 910 kg/m 3, and when the copolymer in a differential scanning calorimeter is heated from 0°C to 200°C at a rate of 10°C/min, held at 200°C for 10 minutes, cooled to 0°C at a rate of 10°C/min, held at 0°C for 10 minutes and then heated to 200°C at a rate of 10°C/min, the copolymer satisfies the equations below wherein ΔH is the total heat of melting observed during the second heating in the above process, and ΔH is the heat of melting observed during the second heating in the above process from 0°C to T°C, 0.35 ≤ Δ H 80 / Δ H ≤ 0.85 and 0.60 ≤ Δ H 100 / Δ H ≤ 0.85; and the intermediate layer is an intermediate layer comprising an ethylene resin satisfying the following requirements to: the resin comprises a copolymer of ethylene and a C3-C20 α-olefin, the melt flow rate measured at 190°C under 2.16 kg load is 1 to 50 g/10 min according to the method JIS K7210-1, and the density is 900 to 925 kg/m 3. the sealant layer comprises an ethylene/α-olefin copolymer satisfying the following requirements to: the copolymer is a copolymer of ethylene and a C3-C20 α-olefin, the melt flow rate measured at 190°C under 2.16 kg load is 1 to 50 g/10 min according to the method JIS K7210-1, the density is 890 to 910 kg/m 3, and when the copolymer in a differential scanning calorimeter is heated from 0°C to 200°C at a rate of 10°C/min, held at 200°C for 10 minutes, cooled to 0°C at a rate of 10°C/min, held at 0°C for 10 minutes and then heated to 200°C at a rate of 10°C/min, the copolymer satisfies the equations below wherein ΔH is the total heat of melting observed during the second heating in the above process, and ΔH is the heat of melting observed during the second heating in the above process from 0°C to T°C, 0.35 ≤ Δ H 80 / Δ H ≤ 0.85 and 0.60 ≤ Δ H 100 / Δ H ≤ 0.85; and the copolymer is a copolymer of ethylene and a C3-C20 α-olefin, the melt flow rate measured at 190°C under 2.16 kg load is 1 to 50 g/10 min according to the method JIS K7210-1, the density is 890 to 910 kg/m 3, and when the copolymer in a differential scanning calorimeter is heated from 0°C to 200°C at a rate of 10°C/min, held at 200°C for 10 minutes, cooled to 0°C at a rate of 10°C/min, held at 0°C for 10 minutes and then heated to 200°C at a rate of 10°C/min, the copolymer satisfies the equations below wherein ΔH is the total heat of melting observed during the second heating in the above process, and ΔH is the heat of melting observed during the second heating in the above process from 0°C to T°C, 0.35 ≤ Δ H 80 / Δ H ≤ 0.85 and 0.60 ≤ Δ H 100 / Δ H ≤ 0.85; and the intermediate layer is an intermediate layer comprising an ethylene resin satisfying the following requirements to: the resin comprises a copolymer of ethylene and a C3-C20 α-olefin, the melt flow rate measured at 190°C under 2.16 kg load is 1 to 50 g/10 min according to the method JIS K7210-1, and the density is 900 to 925 kg/m 3. the resin comprises a copolymer of ethylene and a C3-C20 α-olefin, the melt flow rate measured at 190°C under 2.16 kg load is 1 to 50 g/10 min according to the method JIS K7210-1, and the density is 900 to 925 kg/m 3.