Tribostatic fluidised bed powder coating process

Coating processes – Direct application of electrical – magnetic – wave – or... – Electrostatic charge – field – or force utilized

Reexamination Certificate

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C427S460000, C427S461000

Reexamination Certificate

active

10534059

ABSTRACT:
A process for forming a coating on a substrate, including the steps of effecting tribostatic charging of a body of powder by establishing a fluidised-bed of the body of powder in a fluidising chamber at least a part of which is conductive, applying a voltage to the conductive part of the fluidising chamber, immersing a substrate which is electrically non-conductive or poorly conductive, either electrically isolated or earthed, wholly or partly in the fluidised bed, withdrawing the substrate from the fluidised-bed and forming adherent particles of the powder into a continuous coating over at least part of the substrate.

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patent: WO 02/098577 (2002-12-01), None
Liberto, N.P. (Ed.), Powder Coating The Complete Finisher's Handbook, pp. 88-89, 1994.

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