Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1988-05-20
1989-08-01
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 93, G03G 504, G03G 506
Patent
active
048533106
ABSTRACT:
Cyanine dyes, particularly indocyanine dyes, having at least 7 carbon atoms in the polymethine chain which may possess a fused cyclopentene or cyclohexene ring in the form of a tri-iodide salt exhibit a substantial reduction in the propensity to associate compared to dyes having the identical cation but different anion. The tri-iodide salts are particularly useful as sensitizers in organic photoconductor systems.
REFERENCES:
patent: 4337305 (1982-06-01), Beretta et al.
patent: 4617247 (1986-10-01), Suzuki et al.
J. Org. Chem., vol. 42, No. 5, 1977, "Stable Heptamethine Pyrylium Dyes that Absorb in the Infrared," G. A. Reynolds et al., pp. 885-888.
Zhurnal Organicheskoi Khimii, vol. 14, No. 10, pp. 2214-2221, Oct. 1978, Y. L. Slominskii et al., "Polymethine Dyes with Hydrocarbon Bridges" (Chlorine Substituted Tricarbocyanines).
Brown David E.
Leichter Louis M.
Kirn Walter N.
Lindeman Jeffery A.
Litman Mark A.
Michl Paul R.
Minnesota Mining and Manufacturing Company
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