| abstract |
(57) [Problem] To provide a one-part thixotropic polyurethane resin composition having excellent storage stability and curability, having low modulus and suppressed foaming properties, and suitable for use as a low modulus type sealing material. To do. A urethane prepolymer containing a terminal free isocyanate group obtained by reacting a polyisocyanate with a compound having two or more active hydrogens in one molecule, a monool and N-hydroxyalkyl-oxazolidine, and a hydrophobic fine powder A one-pack thixotropic polyurethane resin composition containing silica has solved the above-mentioned problems. |