Electrostatic fluidised powder bed coating process

Details Electrostatic fluidised powder bed coating process Electrostatic fluidised powder bed coating process

2011-07-05

2011-07-05

Parker, Frederick J (Department: 1715)

Coating processes

Direct application of electrical, magnetic, wave, or...

Electrostatic charge, field, or force utilized

C427S460000, C427S461000

Reexamination Certificate

active

07972660

ABSTRACT:
The present invention pertains to a process for forming a coating on a substrate using a tribo-charging electrostatic fluidized bed process; characterized in that a powder coating is used which has a particle size distribution such that a) d(v,90)≦42.5 μm, and b) i) the percentage of particles <10 μm in size is ≦12% by volume, and/or ii) [d(s,90)÷d(s,10)]2≦3.5, [d(s,90)−7]d(s,90) being greater than 7 μm and d(s,90) and d(s,10) being measured in microns.

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