Coating processes – Direct application of electrical – magnetic – wave – or... – Electrostatic charge – field – or force utilized
Patent
1995-12-20
1997-12-16
Lusignan, Michael
Coating processes
Direct application of electrical, magnetic, wave, or...
Electrostatic charge, field, or force utilized
427485, 427486, 427533, B05D 106, B05D 314
Patent
active
056982690
ABSTRACT:
This invention provides a process for electrostatically applying a coating composition onto dielectric materials which have a dielectric constant less than 4.0. In this process, a positive charge is induced onto a coating composition. The dielectric material is electrically isolated, negatively charge, or both. The positively-charged coating composition is sprayed onto the dielectric material. If the dielectric material is charged negatively, the process of the present invention further includes the step of maintaining at least a portion of the negative charge on the dielectric material while positively-charged coating particles are being sprayed thereon.
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Carlblom Leland H.
Chirgott Paul S.
Jones Donald B.
Niederst Ken W.
Chirgott Paul S.
Lusignan Michael
Parker Fred J.
PPG Industries Inc.
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