| 摘要 |
PURPOSE:To obtain a hardenable composition containing a specific polymerizable liquid resin binder, an inorganic powdery filler and an aggregate at specific ratios, having excellent workability and applicability and giving a hardened product having excellent water-resistance. CONSTITUTION:This composition contains (A) a polymerizable liquid resin as a binder composed of an unsaturated urethane expressed by the formula and a vinyl monomer copolymerizable with the unsaturated urethane at an (unsaturated urethane/vinyl monomer) weight ratio of 90/10 to 10/90 and (B) 300-1,150 pts.wt. (based on 100 pts.wt. of the binder) of an inorganic powdery filler and aggregate in total. In the formula, X is residue obtained by removing isocyanate group from polyisocyanate, Y is residue obtained by removing hydroxyl group from trihydric alcohol, A<1> and A<2> are 2-6C and 2-4C alkylene groups, respectively, R<1>, R<2> and R<3> are H or CH3, p and r are integers of 0-2 and at least one of them is not 0, q is integer of 1-3, 2<=p+q+r<=4 and m is integer of 2-5. |
