Anthraquinone compounds useful in photographic processes

Details Anthraquinone compounds useful in photographic processes Anthraquinone compounds useful in photographic processes

1973-05-23

1978-08-29

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

96 91R, 96 29R, 260147, 260152, 260163, 260174, 260177, 260178, 260180, 260181, 260184, 260185, 260187, 260188, 260194, 260195, 260196, 260197, 260199, 260201, 260202, 260203, 260207, 2602071, 26034791, 260373, 260374, 260377, 260519, 260559R, 260559A, 260561R, C09B 150

Patent

active

041103556

ABSTRACT:
This invention relates to a novel class of compounds which are capable of reacting in such a way as to form a new heterocyclic ring, and as a function of such reaction and ring formation to split off a color-providing material.

REFERENCES:
patent: 2063246 (1936-12-01), Haddock
patent: 3070602 (1962-12-01), Buebler
patent: 3252969 (1966-05-01), Blout
patent: 3418064 (1968-12-01), Buecheler
patent: 3533788 (1970-10-01), Coles
patent: 3772362 (1973-11-01), Weaver
patent: 3842101 (1974-10-01), Graser
patent: 3925347 (1975-12-01), Huyffer

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