| 摘要 |
PURPOSE: Provided is a photocurable coating composition using urethane acrylate oligomer, which allows the molded product to have excellent appearance, durability, heat resistance, and other physical property. CONSTITUTION: The photocurable coating composition comprises 10-70 wt% of urethane acrylate oligomer of formula 1, 10-60 wt% of reactive monomer, 0.1-20 wt% of photoinitiator, and 0-10 wt% of leveling agent. In the formula 1, R3 is aliphatic, alicyclic, aromatic compounds, or oligomer of these compounds, X is fluorine compound of formula 4: CpF(2P+1)-R8-OH or formula 5, or a mixture thereof, R8 is C1-C10 alkylene group, p is an integer of 1-10, R9 is any one of F, CF3, CH2F, CHF2, q is an integer of 1-5, R10 is C1-10 alkylene, Y is polyester polyol of formula 2 or polyether polyol of formula 3: HO-£-R6-O-C(=O)-R4-C(=O)-O-R5-O-|n-H, each of R4 and R5 is C2-C10 aliphatic or aromatic compounds, n is 1-20, each of R6 and R7 is C2-C10 aliphatic or aromatic compounds, o is 1-20, R1 is hydrogen or methyl group, R2 is C2-C6 alkylene group, and each of l and m is 1-6.
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