Polyurethane compound, photosensitive resin composition, method for producing photosensitive resin composition, and cured product

Provided are the following: a polyurethane compound able to give a resin composition which exhibits excellent flexibility and high weathering resistance and light resistance, can maintain transparency, and is suitable for use in optical applications in particular; a photosensitive resin composition that contains the compound; a method for producing the photosensitive resin composition; and a cured product of the composition. The polyurethane compound is obtained by reacting a hydrogenated polybutadiene polyol compound (A), a polyisocyanate compound (B), a (meth)acrylate compound (C) having a hydroxyl group and, as an optional component, a diol compound (D) other than compound (A). 提供聚氨酯化合物、包含该化合物的感光性树脂组合物、该感光性树脂组合物的制造方法、以及该组合物的固化物，所述聚氨酯化合物能够制成柔软性优异且耐候性、耐光性高、可以保持透明性并且尤其适合应用于光学用途的树脂组合物。聚氨酯化合物是使氢化聚丁二烯多元醇化合物(A)和多异氰酸酯化合物(B)、具有羟基的(甲基)丙烯酸酯化合物(C)以及作为可选成分的化合物(A)以外的二元醇化合物(D)反应而得到的。