| abstract |
PROBLEM TO BE SOLVED: To provide a solvent-free, moisture-curable adhesive having good storage stability and weather resistance, and particularly having a low odor during bonding. SOLUTION: This is a solvent-free moisture-curing adhesive comprising (A) an organic polyisocyanate and (B) an isocyanate group-containing prepolymer obtained by reacting an active hydrogen group-containing compound, wherein the (A) organic polyisocyanate is used. Is (A1) hexamethylene diisocyanate and (A 2) An alkyl monool having 1 to 10 carbon atoms is converted into (A) 3) Solved by a solventless moisture-curing adhesive characterized by being a polyisocyanate obtained by allophanation in the presence of a zirconium carboxylate. |