| abstract |
An object of the present invention is to provide a reactive urethane compound having superior curability, adhesion to substrates, transparency, molecular flexibility, and mechanical properties, a curable composition containing the compound, and a cured material formed from the composition. An ethylenically-unsaturated-group containing reactive urethane compound of the present invention is represented by formula (I):n nwherein R 1 and R 2 are each independently a hydrogen atom or an alkylene group; R 3 is a hydrogen atom, a alkyl group, or an aryl group; R 4 is a single bond or an alkylene group; R 5 is a hydrogen atom or a methyl group; R 6 is an oxygen atom, a sulfur atom, or an imino group; n is 2 to 12; m is 1 to 300; and X is an aliphatic, aromatic or heterocyclic compound residue. |