Continuous method for cathodic electrodeposition

Details Continuous method for cathodic electrodeposition Continuous method for cathodic electrodeposition

1978-06-02

1980-06-17

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25D 1306, C25D 1322

Patent

active

042082617

ABSTRACT:
An improvement in a method for coating an electrically conductive article by electrodeposition, wherein the article, as the cathode, is immersed in an aqueous bath containing a basic resin, at least partially neutralized with an acid compound, and a particulate synthetic resin, is provided. The improvement is the conducting of the electrodeposition continuously while adding a replenishing supply liquid to the aqueous bath to maintain a constant bath composition. The composition of the replenishing supply liquid is such that (a) the proportion of water is smaller than in the initial aqueous bath, (b) the proportion of the basic resin to the acid compound is larger than employed in the initial partial neutralization, and (c) the particulate synthetic resin is also present.

REFERENCES:
patent: 3869366 (1975-03-01), Suzuki et al.

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