POLYISOCYANATE COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a sealing material excellent in thixotropy by using a polyisocyanate composition containing few urethane bond and low viscosity without using a low-molecular weight compound causing the deterioration in a surface tack. SOLUTION: The polyisocyanate composition is characterized by containing (A) an isocyanate-terminated prepolymer derived from an aliphatic and/or an alicyclic diisocyanate; (B) calcium carbonate particles having an average particle diameter of >=1 μm; (C) calcium carbonate particles having an average particle diameter of <=0.2 μm.