Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1990-02-20
1992-07-14
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
523404, 523414, 523415, 523420, 525525, 525526, 524901, C25D 1310
Patent
active
051300044
ABSTRACT:
A pigment paste suitable for use in cationic electrodeposition is disclosed. The pigment paste comprises a cationic resinous grinding vehicle derived from an epoxy resin containing both quaternary ammonium and ternary sulfonium salt groups. Also disclosed are cationic electrodeposition paints containing the pigment paste and the use of these paints in the process of cationic electrodeposition. The paste improves the stability of lead-containing cationic electrodeposition paints.
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Johnson Mark W.
McCollum Gregory J.
Mayekar Kishor
Niebling John
PPG Industries Inc.
Uhl William J.
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