Diphenylmethane electrophotographic liquid developer

Details Diphenylmethane electrophotographic liquid developer Diphenylmethane electrophotographic liquid developer

1973-10-18

1976-09-14

Klein, David

Compositions

Electrolytes for electrical devices

427 15, G03G 900, G03G 1300

Patent

active

039805778

ABSTRACT:
An electrophotographic developer containing a lake of a diphenylmethane color of the formula: ##SPC1##
Wherein R.sub.1 and R.sub.3 are each hydrogen, phenyl or alkyl substituted or unsubstituted with hydroxyl, alkoxy, cyano, carbalkoxy, carbamoyl or phenyl, R.sub.2 and R.sub.4 are each alkyl substituted or unsubstituted with hydroxyl, alkoxy, cyano, carbalkoxy, carbamoyl or phenyl and R.sub.5 and R.sub.6 are each hydrogen, alkoxy or halogen.

REFERENCES:
patent: 3325409 (1967-06-01), Whitbread et al.
Metcalfe et al.; Fine Grain Development in Xerography; pp. 194, 195; Journal of Sci. Inst.[5/56].
The Color Index vol. 3 & 4, Third Ed. ('71) Soc. of Dyers & Colourists.
The Chemical Technology of Dyeing & Printing vol. 2 Reinhold 1951, p. 90.
The Chemistry of Synthetic Dyes & Pigm'ts -Lubs, Hafner Pub. Co., 1955.

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