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ELECTROCONDUCTIVITY-CONTROLLING AGENT FOR CATIONIC ELECTRODEPOSITION COATING COMPOSITION AND METHOD FOR ADJUSTING ELECTROCONDUCTIVITY OF CATIONIC ELECTRODEPOSITION COATING COMPOSITION THEREWITH
ELECTROCONDUCTIVITY-CONTROLLING AGENT FOR CATIONIC ELECTRODEPOSITION COATING COMPOSITION AND METHOD FOR ADJUSTING ELECTROCONDUCTIVITY OF CATIONIC ELECTRODEPOSITION COATING COMPOSITION THEREWITH
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机译:阳离子电沉积涂料组合物的电导率控制剂及其调节阳离子电沉积涂料组合物的电导率的方法
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摘要
The present invention is intended to provide a technology preventing decrease in an electroconductivity or an throwing power of a cationic electrodeposition coating composition having a lower solid content and/or a lower ash content. Therefore, the present invention relates to:an electroconductivity-controlling agent used for a low solid content type cationic electrodeposition coating composition having 0.5 to 9.0 wt % of solid content of the coating composition, which agent includes an amino group-containing compound having 500 to 20000 of molecular weight and 200 to 500 mmol/100 g of amine value, to adjust an electroconductivity of the composition to 900 to 2000 μS/cm;a method for adjusting an electroconductivity of a cationic electrodeposition coating composition, which includes steps of:adding an electroconductivity-controlling agent to a low solid content type cationic electrodeposition coating composition having 0.5 to 9.0 wt % of solid content of the coating composition, andadjusting an electroconductivity of the cationic electrodeposition coating composition to 900 to 2000 μS/cm during the above step,wherein the electroconductivity-controlling agent includes an amino group-containing compound having 200 to 500 mmol/100 g of amine value; and the like.展开▼