Dry toners containing methinefanal pigments

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

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430107, G03G 910

Patent

active

048493066

ABSTRACT:
Dry toners for developing latent electrostatic images in electrostatic recording and printing methods contain, as charge-control substance, a pigment of the formula

REFERENCES:
patent: 4301227 (1981-11-01), Hotta et al.
patent: 4680245 (1987-07-01), Suematsu et al.
patent: 4734350 (1988-03-01), Lin et al.
Derwent Accession No. 84-279 376, Questel Telesystemes (WPIL) Derwent Publications Let., London *Zusammenfassung* & JP-A-59 172 655 (Sumitomo).

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