Pressure-sensitive adhesive body, the adhesive sheet and its use

Low viscosity good coating properties at a possible solventless, adhesive strength is low and temporal increase of adhesion is small, has good adhesion to a substrate, also adhesion to an adherend and excellent removability, and wettability to provide a good pressure-sensitive adhesive body. The molecular terminal of the polyurethane prepolymer obtained by reacting a polyol compound with a polyisocyanate compound, and a silyl group-containing polymer obtained by introducing a hydrolyzable silyl group of the curable composition comprising (S) to cure adhesive body obtained peel adhesion is equal to or less than 8N / 25 mm.