Adhesive resin laminate, laminate, and method of producing same

A method of producing a laminate comprising two adherends and an adhesive resin laminate consisting essentially of a first adhesive layer and a second adhesive layer, the method comprising:

• (1) a first step of laminating a first adherend and said first adhesive layer and heat-pressing said first adherend and said first adhesive layer to laminate said first adherend and said adhesive resin laminate;
• and
• (2) a step of laminating a second adherend and said second adhesive layer and heat-pressing said second adherend and said second adhesive layer at a temperature higher than a temperature in said first step by 30° C. or more to laminate said second adherend and said adhesive resin laminate, in this order,
• wherein
• the two adherends and the adhesive resin laminate are laminated in an order of said first adherend, said first adhesive layer of said adhesive resin laminate, said second adhesive layer of said adhesive resin laminate, and said second adherend,
• said first adhesive layer comprises a base resin and a crosslinking agent, in which a maleic acid anhydride-modified propylene-1-butene copolymer is contained as said base resin a ratio of 98 to 99.99 parts by mass, and a phenol novolak epoxy resin having a bisphenol skeleton is contained as said crosslinking agent with a ratio of 0.01 to 2 parts by mass,
• said second adhesive layer comprises a layer composed of block polypropylene and a layer composed of random polypropylene, wherein the layer composed of random polypropylene is contact with a surface of the first adhesive layer, and
• when an adhesion initiation temperature of said first adhesive layer is set to T1, and an adhesion initiation temperature of said second adhesive layer is set to T2, T2 is higher than T1 by 30° C. or more.