Patent No. U.S. . 7,077,941 B2 Kansai Paint Company has been granted a patent for a multi-layer electrodeposition coating film-forming method which is comprised of subjecting a cationic electrodeposition coating composition containing at least two emulsions to an electrodeposition coating. The cationic electrodeposition coating composition being such that a difference in an electrical quantity required for deposition starting between a first coating composition comprising a first emulsion and a second coating composition comprising a second emulsion in two emulsions selected from the at least two emulsions is in the range of 50 to 400 C/m2.
kansai patents Multi-layer
Published December 18, 2006
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