Sensitization of methine dyes by aggregated pyrylium dyes

Details Sensitization of methine dyes by aggregated pyrylium dyes Sensitization of methine dyes by aggregated pyrylium dyes

1989-10-30

1991-02-05

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 57, G03G 1502

Patent

active

049904221

ABSTRACT:
Photoconductive compositions of methine dye and aggregated pyrylium dye which, when incorporated into charge generation compositions for use in photoconductive film elements, display extended spectral sensitivity, enhanced visibility, and high resolution characteristics compared to either dye used separately. Preferred methine dyes are cyanine dyes with near infra red region sensitivity. The film elements also display reduced energy requirements for discharge.

REFERENCES:
patent: 3958991 (1976-05-01), Jones et al.
patent: 3973962 (1976-08-01), Contois et al.
patent: 4513071 (1985-04-01), Mey
patent: 4634553 (1987-01-01), Detty et al.
patent: 4687722 (1987-08-01), Ogawa
patent: 4769022 (1988-09-01), Chang et al.
patent: 4857431 (1989-08-01), Kato et al.
William Mey, Multi-Active Photoconductive Element, #13324, Research Disclosure, May 1975, pp. 44-47.

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