| 摘要 |
PURPOSE:To provide the titled absorber having excellent dispersion and transparency and capable of being added to a cationic electrodeposition paint because of its high water solubility, which is low in volatility and exhibits the effect by adding a small amount of it, by using a 2-hydroxybenzophenone compound as a starting material. CONSTITUTION:The substituent C1 and/or the substituent C2 of a 2- hydroxybenzophenone compound of the formula I (wherein A and B are each H, a halogen, an alkyl or an alkoxy; Y is H or OH; C1 and C2 are each groups of the formula II or III, etc.; and Q1 and Q2 are each a 1C or 5C or lower alkylene) are reacted with an amino compound of the formula IV or V (wherein Q3 is an alkylene and Q4-Q5 are each an alkyl). The terminal amino group or tertiary amine of the obtained compound is reacted with an alkyl halide of the formula Q6X (wherein Q6 is CH3, etc.; and X is a halogen) to obtain a water-soluble benzophenone ultraviolet absorber of the formula VI [wherein Z1 and/or Z2 are a quaternary ammonium salt of the formula VII or VIII (wherein R1 is a direct bond or an alkylene; R2 is an alkylene; and R3-R5 are each an alkyl)]. |
