AQUEOUS BINDER DISPERSIONS INTENDED FOR CATHODIC ELECTROCOAT MATERIALS AND COMPRISING A CROSSLINKER BASED ON 2,2-DIMETHYL-1,3-DIOXOLANE-4-METHANOL-BLOCKED POLYISOCYANATES

The present invention relates to aqueous binder dispersions for cationic electrocoat materials, comprising as binders amine-modified, hydroxy-functional epoxy resins and comprising as crosslinker at least one fully blocked polyisocyanate blocked at least partly with 2,2-dimethyl-1,3-dioxolane-4-meth...

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Bibliographische Detailangaben
Hauptverfasser: OTT Guenther, GROSSE BRINKHAUS Karl-Heinz, PRZYBILLA Silke, OBERHOFF Markus, STOLL Dominik
Format: Patent
Sprache:eng
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Zusammenfassung:The present invention relates to aqueous binder dispersions for cationic electrocoat materials, comprising as binders amine-modified, hydroxy-functional epoxy resins and comprising as crosslinker at least one fully blocked polyisocyanate blocked at least partly with 2,2-dimethyl-1,3-dioxolane-4-methanol, and also to the use of such cationic electrocoat materials for producing coating systems and to the use of crosslinkers based on polyisocyanates blocked with 2,2-dimethyl-1,3-dioxolane-4-methanol in aqueous binder dispersions.