| 摘要 |
<p>PURPOSE: Provided is a cationic coating composition, which can form a coating film having excellent electrodeposition coating property and an adhesive property to an anti-rust steel plate, anti-corrosive property and a low temperature curability. CONSTITUTION: The cationic coating composition comprises, as a vehicle component, an amino group-containing epoxy resin modified with a xylene-formaldehyde resin obtained by reacting an epoxy resin having an epoxy equivalent of 180 to 2500 with a xylene-formaldehyde resin and an amino group-containing compound. Particularly, the epoxy resin is obtained by reacting a polyphenol compound with epihalohydrin. Further, the xylene-formaldehyde resin is obtained by the condensation of xylene, formaldehyde and phenols in the presence of an acid catalyst.</p> |
