Polyurethane compound and resin composition containing same

The invention discloses a polyurethane compound and a resin composition containing the same. The invention provides a polyurethane resin (E) that has excellent flexibility, weather resistance, and light resistance, can maintain transparency, and is suitable for use in optical applications. The polyurethane resin (E) is obtained by reacting a compound (A), a compound (B), and a compound (C), based on the relationship (number of moles of isocyanate groups of (B)) > (total number of moles of hydroxyl groups of (A) and (C)), and then reacting a compound (D). Compound (A): a polyol compound; compound (B): a polyisocyanate compound; compound (C): a (meth)acrylate compound that has at least one hydroxyl group; and compound (D): a polyol compound. 本发明提供种聚氨酯树脂(E)，其柔软性和耐候性、耐光性优异，可维持透明性，适合用于光学用途，所述聚氨酯树脂(E)通过如下方式得到：使以下所示的化合物(A)与化合物(B)、化合物(C)以((B)的异氰酸酯基的摩尔数)>((A)与(C)的羟基的摩尔数总数)的关系反应，接着使化合物(D)反应。化合物(A)：多元醇化合物、化合物(B)：多异氰酸酯化合物、化合物(C)：具有至少1个以上羟基的(甲基)丙烯酸酯化合物、化合物(D)：多元醇化合物。