Adhesive resin composition and laminate
Provided are an adhesive resin composition having high adhesiveness and high strength in acid resistance, and a laminate including the same. Provided is an adhesive resin composition including an acid-modified polyolefin resin component (A) having a weight average molecular weight of 30,000 or more and 150,000 or less, a resin component (B) having an epoxy group in a molecule, a resin component (C) having an amino group at a molecular end, and a solvent (S), in which a content of the resin component (B) is 1 part by mass or more and 30 parts by mass or less based on 100 parts by mass of the acid-modified polyolefin resin component (A), and a content of the resin component (C) is 0.5 parts by mass or more and 15 parts by mass or less based on 100 parts by mass of the acid-modified polyolefin resin component (A).
1. An adhesive resin composition consisting essentially of:
an acid-modified polyolefin resin component (A) having a weight average molecular weight of 30,000 or more and 150,000 or less;
a resin component (B) having an epoxy group in a molecule;
a resin component (C) having an amino group at a molecular end; and
a solvent (S),
wherein
a content of said resin component (B) is 1 part by mass or more and 30 parts by mass or less based on 100 parts by mass of said acid-modified polyolefin resin component (A), and
a content of said resin component (C) is 0.5 parts by mass or more and 15 parts by mass or less based on 100 parts by mass of said acid-modified polyolefin resin component (A),
said acid-modified polyolefin resin component (A) is maleic anhydride-modified polypropylene having a melting point of 60° C. or higher and 85° C. or lower,
said resin component (B) is a novolac-modified epoxy resin having a bisphenol A structure in the molecule, and has a weight average molecular weight of 5,000 or more and 100,000 or less, and
said resin component (C) is at least one resin selected from the group consisting of an olefin resin in which a molecular end is modified with an amino group, a polyamine resin, a polyamide resin in which a molecular end is modified with an amino group, and a urea resin, and has a weight average molecular weight of 5,000 or more and 1,000,000 or less.
2. The adhesive resin composition according to claim 1 , wherein said acid-modified polyolefin resin component (A) has an acid addition amount of 0.5% by mass or more and 3.0% by mass or less.
3. The adhesive resin composition according to claim 1 , further comprising an isocyanate compound (D).
4. A laminate comprising:
an adherend; and
an adhesive resin layer laminated on one side of said adherend,
wherein said adhesive resin layer is formed of the adhesive resin composition according to claim 1 .