Urethane adhesive, polyol composition for urethane adhesive, polyisocyanate composition for urethane adhesive, cured product of urethane adhesive, and laminated film

摘要

Polyol (A) selected from the group consisting of polyester polyol, polyester polyether polyol, polyester polyurethane polyol, polyether polyurethane polyol, and polyester polyether polyurethane polyol, polyisocyanate (B), and SP value of 20 to 32 (J / Cm3) 1/2 and the carboxyl group-containing compound (C) having an acid value of 250 to 1,000 mgKOH / g as an essential component, and the carboxyl group-containing compound (C) is 0 per 100 parts by mass of the polyol (A). A urethane-based adhesive contained at a ratio of 0.01 to 1.5 parts by mass.