MOISTURE-CURABLE HOT-MELT ADHESIVE

摘要

A moisture-curable hot-melt adhesive which comprises a hot-melt urethane prepolymer (A) containing isocyanate groups, an acidic ester (B) of phosphoric acid, and at least one silane coupling agent (C) selected from the group consisting of a silane coupling agent (c-1) having an epoxy group and a silane coupling agent (c-2) having a mercapto group, wherein the hot-melt urethane prepolymer (A) is one obtained by reacting one or more polyols with a polyisocyanate and the polyols comprise at least 20 wt.% polyester polyol. The moisture-curable hot-melt adhesive contains no organic solvents causative of the sick-house problem and is less harmful to the environment. It is useful especially in the field of interior building materials.