Processes for the preparation of photogenerating compositions

Details Processes for the preparation of photogenerating compositions Processes for the preparation of photogenerating compositions

1992-01-31

1993-07-06

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Process of making radiation-sensitive composition

430128, 430135, G03G 506

Patent

active

052253074

ABSTRACT:
A process for the preparation of photogenerating pigments which comprises the sublimation of a pelletized crude photogenerating pigment at a temperature of from about 250.degree. to about 500.degree. C.; depositing the sublimate onto a substrate; subsequently increasing the sublimation temperature by from about 10.degree. to about 100.degree. C. above the first sublimation temperature, and depositing the resulting sublimate onto a substrate.

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patent: 5002734 (1991-03-01), Kowalczyk et al.

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