POLYURETHANE-BASED ONE-PACK TYPE MOISTURE-CURING COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a polyurethane-based one-pack type moisture-curing composition meeting such a demand that the one-pack type moisture-curing composition especially suitably used for a clean room, not generating gaseous organic compounds besides a small amount thereof, and of low cost should be given. SOLUTION: This polyurethane-based one-pack type moisture-curing composition is cured by moisture in the air, wherein the composition contains a main component changed into a polyurethane resin after cured and an additive, and further the composition is used without adding any organic solvent thereto. A thixotropic agent comprising a polyurea compound expressed by the general formula: R1(NHCONR2R3)m (R1 is a polyisocyanate reside derived from a polyisocyanate; R2 and R3 are each a reside derived from a monoamine, and one of both the R2 and R3 may be H; and m is an integer of 2-4) is preferably added to the composition as the additive.