| 摘要 |
PURPOSE:To obtain a coating resin composition which can give a coating film which is very excellent in flexibility and adhesion to a metal substrate by modifying an epoxy resin with a butadiene/acrylonitrile copolymer having a specified group and a bifunctional mononuclear phenol. CONSTITUTION:A coating resin composition is obtained by reacting an epoxy resin with a butadiene/acrylonitrile copolymer having COOH groups or NH2 groups at both terminals and a bifunctional mononuclear phenolic compound (e.g. resorcinol). Because this composition or an electrodeposition coating composition containing this is good in adhesion to a metallic substrate and can give a highly corrosion-resistant film excellent in flexibility, pitting resistance, low- temperature properties, etc., it can be desirably used in many industrial fields, especially the of automobile industry.
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