Cathodic electrodeposition coating compositions and process...

Chemistry: electrical and wave energy – Processes and products – Electrophoresis or electro-osmosis processes and electrolyte...

Reexamination Certificate

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C204S489000, C528S322000

Reexamination Certificate

active

07153406

ABSTRACT:
A cathodic electrodeposition coating composition which produces substantially pinhole-free coatings on galvanized surfaces, said composition comprising 0.2 to 8% by weight, based on the weight of resin solids in the composition, of at least one 5- or 6-membered cyclic imide having a (cyclo)alkyl or (cyclo)alkenyl residue comprising 4 to 12 carbon atoms on the imide nitrogen.

REFERENCES:
patent: 4423172 (1983-12-01), Otsuki et al.
patent: 5702581 (1997-12-01), Kerlin et al.
patent: 5905103 (1999-05-01), Honig et al.

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