A compound represented by the following formula (1) has sufficient solubility, a wide usable concentration range, and excellent haze-lowering performance. In the formula, L1 to L6 represent a single bond, -O-, -CO-, -COO-, etc; Sp1 to Sp4 represent a single bond or alkylene of 1 to 10 carbon atoms; A1 and A2 represent trivalent or tetravalent aromatic hydrocarbon or heterocyclic; T represents the following formulae, etc; Hb represent perfluoroalkyl of 2 to 30 carbon atoms; m and n are 2 or 3; and o and p are an integer of 0 or more.
(Hb-Sp1-L1-Sp2-L2)m-A1-L3-T-L4-A2-(L5-Sp3-L6-Sp4-Hb)n (1)
下式(1)所代表的化合物具有足够的溶解性、较宽的可用浓度范围和优异的降雾性能。式中,L1 至 L6 代表单键、-O-、-CO-、-COO-等;Sp1 至 Sp4 代表单键或 1 至 10 个碳原子的亚烷基;A1 和 A2 代表三价或四价
芳香烃或杂环;T 代表下式等;Hb 代表 2 至 30 个碳原子的
全氟烷基;m 和 n 为 2 或 3;o 和 p 为 0 或 0 以上的整数。
(Hb-Sp1-L1-Sp2-
L2)m-A1-L3-T-L4-A2-(L5-Sp3-L6-Sp4-Hb)n (1)