Electrospraying method with conductivity control

Details Electrospraying method with conductivity control Electrospraying method with conductivity control

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

C427S479000, C427S483000, C427S485000

Reexamination Certificate

active

07972661

ABSTRACT:
An electrospraying apparatus and/or method is used to coat particles. For example, a flow including at least one liquid suspension may be provided through at least one opening at a spray dispenser end. The flow includes at least particles and a coating material. A spray of microdroplets suspending at least the particles is established forward of the spray dispenser end by creating a nonuniform electrical field between the spray dispenser end and an electrode electrically isolated therefrom. The particles are coated with at least a portion of the coating material as the microdroplet evaporates. For example, the suspension may include biological material particles.

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