Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1990-02-05
1991-05-07
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
546191, G03G 9097
Patent
active
050136283
ABSTRACT:
Particulate toner material for use in the development of latent electrostatic images, wherein said particulate toner material is capable of acquiring by triboelectric contact electrification when in admixture with carrier particles a net positive charge and contains at least one thermoplastic resin as binder in combination with a colorant and a colorless compound capable of imparting a positive charge to the particulate toner material when in frictional contact with said carrier particles, characterized in that said colorless compound contains in it molecular structure at least one polyalkyl substituted piperidine group and a sterically hindered phenol group.
De Deyne Hedwig E.
Kok Piet
Tavernier Serge M.
Vanmaele Luc J.
Agfa-Gevaert N.V.
Daniel William J.
Martin Roland
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