Urethane (meth) acrylate for civil engineering and construction

摘要

PROBLEM TO BE SOLVED: To provide a urethane (meth) acrylate for civil engineering and construction having a high elastic modulus, breaking strength and breaking elongation. A urethane (meth) acrylate (A) contains at least a urethane (meth) acrylate (A-1) having a structure (a) derived from a polycarbonate polyol and a structure (b) derived from an isocyanate, and is derived from a polycarbonate polyol. The structure (a) is a structure derived from an amorphous polycarbonate polyol (a-1) and / or a structure derived from a polycarbonate polyol containing two or more kinds of repeating units (a-2). Meta) acrylate. [Selection diagram] None