Laminate adhesive

摘要

A laminate adhesive that can suppress elusion of a low molecular weight compounds of a composite film into the content, so as to prevent the inherent properties or performances of the content from being spoiled by the low molecular weight compounds. The laminate adhesive comprises a polyisocyanate component and a polyol component, wherein the polyol component includes polyester polyol and/or polyester polyurethane polyol which is produced by reaction of polyester polyol and polyisocyanate, and wherein concentration of cyclic compounds in extracted water which are extracted from a composite film bonded by the laminate adhesive by water of 0.5mL/cm<2> per unit area of the composite film is 0.5 ppb or less in terms of dibutyl phthalate concentration measured by a gas chromatograph-flame ionization detector.