Electrodip paints, useful for coating electrically conductive materials, in preparation of electrodip coated components and/or in multilayer wet-on-wet painting, contain bismuth compounds and binder

摘要

Electrodip paints contain bismuth compounds, self-crosslinking binder and/or independently crosslinking binder with cationic or anionic groups and reactive functional groups (RFG), which can undergo crosslinking with themselves or with self-crosslinking binder with complementary RFG or in the case of independently crosslinking binder with a crosslinking agent having complementary RFG, and at least one bismuth compound. Bismuth compounds-containing electrodip paint (EDP) containing: (A) at least one self-crosslinking and/or independently crosslinking binder with (potential) cationic or anionic groups and reactive functional groups (RFG), which can undergo a crosslinking reaction (i) with themselves or with self-crosslinking binder with complementary RFG or (ii) in the case of independently crosslinking binder with a crosslinking agent (A) with complementary RFG, where (B) optionally at least one crosslinking agent contains the complementary RFG, and (C) at least one bismuth (Bi) compound. An Independent claim is also included for preparation of the paint by adding at least one Bi compound, preferably a Bi carboxylate, to a conventional electrodip paint.