SOLVENT FREE LAMINATION ADHESIVE CURED PRODUCT OF SAME POLYOL COMPOSITION FOR LAMINATION ADHESIVES AND MULTILAYER FILM

摘要

Provided are: a solvent free lamination adhesive which enables a laminate after lamination to have a good appearance and which enables a laminate to maintain a good appearance especially in cases where the laminate is formed by high speed lamination; a cured product of this solvent free lamination adhesive; a polyol composition for lamination adhesives which serves as one component of this adhesive; and a multilayer film which uses this adhesive. A solvent free lamination adhesive composition which contains as essential components (A) a polyisocyanate component and (B) a polyol component. This solvent free lamination adhesive composition is characterized in that the polyol component (B) contains (b1) castor oil or a hydroxyl group containing castor oil derivative and (b2) a polyalkylene glycol having a number average molecular weight of 2 500 7 000.