Abstract: Provided is a laminate excellent in both adhesiveness to a substrate or the like and easy-openability such as easy-tearability, and a laminate production method. The laminate comprises at least four layers which are, respectively, a substrate layer 1 (?), a resin layer (?), an adhesive agent layer (?) and a substrate layer 2 (?). The substrate layer 1 (?), the resin layer (?), the adhesive agent layer (?) and the substrate layer 2 (?) are laminated adjacent to one another, and the resin layer (?) and the adhesive agent layer (?) satisfy, respectively, the following characteristics: resin layer (?): comprising a polyethylene resin composition (B) containing an ethylene-based copolymer (A) having characteristics (a-1) to (a-4), and adhesive agent layer (?): comprising a reaction product of a polyol compound and a polyisocyanate compound.

Abstract: Provided is a laminate excellent in both adhesiveness to a substrate or the like and easy-openability such as easy-tearability, and a laminate production method. The laminate comprises at least four layers which are, respectively, a substrate layer 1(?), a resin layer (?), an adhesive agent layer (?) and a substrate layer 2(?). The substrate layer 1(?), the resin layer (B), the adhesive agent layer (?) and the substrate layer 2(?) are laminated adjacent to one another, and the resin layer (B) and the adhesive agent layer (?) satisfy, respectively, the following characteristics: resin layer (?): comprising a polyethylene resin composition (B) containing an ethylene-based copolymer (A) having characteristics (a-1) to (a-4), and adhesive agent layer (?): comprising a reaction product of a polyol compound and a polyisocyanate compound.

Abstract: The present invention relates to a polyethylene resin composition for lamination having excellent adhesiveness to a substrate or the like, and preferably also excellent in easy-opening properties such as easy piercing properties, and more specifically, relates to a polyethylene resin composition (C) for lamination containing an ethylene/propylene copolymer (A) having the following properties (a-1) to (a-4). (a-1) A constituent unit derived from ethylene is contained 80 to 98 mol % as a main component, a constituent unit derived from propylene is contained 2 to 20 mol % as an essential sub-component, and a constituent unit derived from a third ?-olefin other than ethylene and propylene may be contained 5 mol % or less as a sub-component. (a-2) MFR 0.1 to 100 g/10 min. (a-3) Density is 0.88 to 0.94 g/cm3. (a-4) Total of vinyl and vinylidene is 0.35 or more.