Adhesive resin laminate, laminate, and method of producing same
Provided are an adhesive resin laminate having an excellent adhesive force to two adherends, a laminate in which this adhesive resin laminate is laminated with two adherends, and a method of producing them. An adhesive resin laminate having at least a first adhesive layer and a second adhesive layer, in which the first adhesive layer includes a base resin and a crosslinking agent, the base resin is a modified polyolefin resin, the crosslinking agent is an epoxy-based compound, the second adhesive layer includes a polyolefin-based resin, and when an adhesion initiation temperature of the first adhesive layer is set to T 1 , and an adhesion initiation temperature of the second adhesive layer is set to T 2 , T 2 is higher than T 1 by 30° C. or more.
1. An adhesive resin laminate consisting essentially of a first adhesive layer and a second adhesive layer,
wherein
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 with 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 in contact with a surface of said first adhesive layer, and
when an adhesion initiation temperature of said first adhesive layer is set to T 1 , and an adhesion initiation temperature of said second adhesive layer is set to T 2 , T 2 is higher than T 1 by 30° C. or more.
2. The adhesive resin laminate according to claim 1 , wherein said phenol novolak epoxy resin having said bisphenol skeleton is a phenol novolak epoxy resin having a bisphenol A skeleton.
3. The adhesive resin laminate according to claim 1 , wherein said second adhesive layer further comprises a polyolefin-based resin layer.
4. The adhesive resin laminate according to claim 1 , wherein said second adhesive layer has a film thickness five times or more of a film thickness of said first adhesive layer.
5. A laminate comprising the adhesive resin laminate as defined in claim 1 and two adherends, the adhesive resin laminate and the two adherends being laminated in an order of a first adherend, said first adhesive layer of said adhesive resin laminate, said second adhesive layer of said adhesive resin laminate, and a second adherend.
6. The laminate according to claim 5 , wherein said first adherend is metal, and said second adherend is selected from any one of a polyolefin resin, a polyamide resin, and a polyester resin.