Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1979-06-29
1982-01-12
Downey, Mary F.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430108, 430111, 430122, 430137, 75 05AA, 252 6254, 252 6255, 427216, 427327, 428403, 428407, G03G 900, C04B 3504, B22F 300
Patent
active
043106110
ABSTRACT:
Electrographic carrier particles with improved conductivity and stability are prepared from magnetic stainless steel particles of at least 9 weight percent chromium content. The particles are passivated by reaction with nitric acid. This forms a chromium-rich, stable film on the particle surfaces. Before passivation the particles may also be treated, e.g., with hydrofluoric acid, to remove surface silicon. The passivated particles, preferably after thinly coating with a resin, e.g., poly(vinylidene fluoride), are mixed with toner powder for electrographic dry development.
REFERENCES:
patent: 3003462 (1961-10-01), Streich
patent: 3632512 (1972-01-01), Miller
patent: 3718594 (1973-02-01), Miller
patent: 3736257 (1973-05-01), Miller
patent: 3767477 (1973-10-01), McCabe
patent: 3795617 (1974-03-01), McCabe
patent: 3795618 (1974-03-01), Kasper
patent: 3849182 (1974-11-01), Hagenbach
patent: 3859086 (1975-01-01), Church et al.
patent: 3893935 (1975-07-01), Jadwin
patent: 3922381 (1975-11-01), Datta
patent: 3923503 (1975-12-01), Hagenbach
patent: 3938992 (1976-02-01), Jadwin
patent: 4076857 (1978-02-01), Kasper
patent: 4147834 (1979-04-01), Munzel
patent: 4229234 (1980-10-01), Krutenat et al.
Downey Mary F.
Eastman Kodak Company
French William T.
LandOfFree
Electrographic magnetic carrier particles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrographic magnetic carrier particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrographic magnetic carrier particles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1541732