Electrostatic coating method utilizing mixture of rough and sphe

Details Electrostatic coating method utilizing mixture of rough and sphe Electrostatic coating method utilizing mixture of rough and sphe

1977-08-19

1979-05-15

Beck, Shrive P.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427185, 427195, 428402, B05D 302, B05D 104

Patent

active

041548710

ABSTRACT:
Improved electrostatic coating is obtained by heat-rounding or spheroidizing pulverized resin particles so that 30-80% take on a glossy appearance while the rest remain rough to provide a mixture that is free flowing at ordinary room temperature and would pass through a screen having openings not exceeding 200 micrometers. Preferably each particle of the mixture is a blend of thermosetting resin and curing agent.

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