Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1989-08-08
1990-07-10
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204165, 204168, 204169, 204170, 427 39, 427 40, 427 41, 118620, 42218605, 42218606, 422907, B05D 314
Patent
active
049405217
ABSTRACT:
Pretreating the surface of electrically conducting molded materials, such as metal foil or plastic films in whose polymer matrix electrically conducting particles have been incorporated, by means of electrical corona discharge is provided. A generator subjects the high voltage discharge electrodes of the corona discharge to a high-frequency alternating current of high voltage. The metal core of a roller, over whose metallic circumference a film web or foil is transported, serves as the grounded metallic counter-electrodes. A housing encloses the high voltage electrodes of the corona discharge and is connected via a line to an atomizer apparatus, in which a liquid is atomized to give a suspendible aerosol by means of a piezoelectric ultrasonic vibrator system or by two-material atomizer nozzles operating at the speed of sound. A blower whose throughput can be regulated is connected to the atomizing apparatus and conveys the carrier gas, for example air, for the aerosol through the atomizing apparatus into the corona discharge.
REFERENCES:
patent: 3142630 (1964-07-01), Antokal et al.
patent: 3274089 (1966-09-01), Wolinski
patent: 3291712 (1966-12-01), McBride
patent: 3396308 (1968-08-01), Whitmore
patent: 3397132 (1968-08-01), Wolinski
patent: 3600122 (1971-08-01), Coleman
patent: 3661735 (1972-05-01), Drelich
Bothe Lothar
Dallmann Hermann
Dinter Peter
Gribbin John D.
Clements Gregory N.
Hoechst Aktiengesellschaft
Niebling John F.
Ryser David G.
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