| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyurethane resin having a fluorene skeleton having flexibility, handling ability, adhesiveness, scratch resistance and high refractive index.SOLUTION: There is provided a polyurethane resin obtained by reaction of a fluorene compound represented by the formula (1) and a polyisocyanate compound. In the formula (1), where Zand Zrepresent aromatic hydrocarbon rings, R, R, Rand Rrepresent substituents, R, R, Rand Rrepresent alkylene groups, k1 and k2 represent each 0 to 4, n1 and n2 represent each 1 or more, m11, m12, m21, m22, p1 and p2 represent each an integer of 0 or more, but m11+m12+m21+m22 is 3 or more. |
