Acyl hydrazino thiourea derivatives as photographic nucleating a

Details Acyl hydrazino thiourea derivatives as photographic nucleating a Acyl hydrazino thiourea derivatives as photographic nucleating a

1976-06-29

1977-06-21

Wyman, Daniel E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

96 64, 260552R, C07C12152, C07C12160, C07C15709, G03C 530

Patent

active

040311279

ABSTRACT:
Photographic nucleating agents are disclosed of the formula ##STR1## wherein R is a hydrogen, phenyl, alkylphenyl, cyanophenyl, halophenyl, alkoxyphenyl, alkyl, cycloalkyl, haloalkyl, alkoxyalkyl or phenylalkyl substituent;

REFERENCES:
patent: 2498418 (1950-02-01), Hanford
patent: 2563785 (1951-08-01), Ives
patent: 2588982 (1952-03-01), Ives
patent: 3227552 (1966-01-01), Whitmore
patent: 3495982 (1970-02-01), Blake

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