| abstract |
(57) [Summary] [Object] To provide a moisture-curable urethane sealant composition having a structural strength suitable for being attached to glass when unvulcanized and having excellent adhesion to an adherend after curing. [Constitution] (1) Urethane prepolymer (A) and (2) A polyurethane compound (B) obtained by reacting HDI with a copolymerized polyol of propylene oxide and ε-caprolactone, and further adding a monoalcohol to the reaction, And (3) a polyurethane compound (C) obtained by reacting a polyester polyol with HDI, and further adding and reacting a monoalcohol, and the polyurethane compound (C) is added to 100 parts by weight of the urethane prepolymer (A). A moisture-curable urethane sealant composition in which the total content of B) and (C) is 1 to 20 parts by weight, and the weight ratio of (B) / (C) is 0.1 to 5. |