A photocurable paint composition for road markings is disclosed, comprising (A) a compound having an ethylenically unsaturated group, (B) a filler, (C) a cationic dye represented by formula (1):
D+·A1- (1)
(wherein D+ represents a cation having an absorption maximum wavelength in the wavelength region of from 400 to 1,200 nm, and A1- represents an optional anion), (D) a quaternary organic borate-type sensitizer represented by formula (2):
(wherein R1, R2, R3 and R4 each independently represents an alkyl group, an aryl group, an aralkyl group, an alkenyl group, an alkynyl group, a silyl group, a heterocyclic group or a halogen atom, and Z+ represents an optional cation) and (E) an ultraviolet radical polymerization initiator capable of generating a radical upon absorption of light at a wavelength of 400 nm or less, or additionally comprising (F) glass beads.
本发明公开了一种用于道路标线的光固化涂料组合物,它包括 (A) 具有
乙烯不饱和基团的化合物;(B) 填料;(C) 由式 (1) 表示的
阳离子染料:
D+-A1- (1)
(其中 D+ 代表一种阳离子,其吸收最大波长在 400 至 1 200 nm 的波长范围内,A1- 代表一种任选阴离子),(D)由式(2)代表的季
硼酸有机敏化剂:
(其中 R1、R2、R3 和 R4 各自独立地代表烷基、芳基、芳烷基、烯基、炔基、
硅基、杂环基或卤素原子,Z+ 代表任选阳离子)和 (E) 紫外自由基聚合
引发剂,能够在吸收波长为 400 纳米或以下的光时产生自由基,或另外包括 (F)
玻璃珠。