Photographically useful compounds including at least one 1,3-sul

Details Photographically useful compounds including at least one 1,3-sul Photographically useful compounds including at least one 1,3-sul

1996-05-13

1997-10-07

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534573L, 534649, 534751, 534797, 534799, 540 74, 540874, 5483111, C09B 2901, C09B 2936, C09B 29036, C09B 2915, C07D23302

Patent

active

056749864

ABSTRACT:
There are described heat-developable photosensitive image-recording materials which include a compound having at least one cyclic 1,3-sulfur-oxygen moiety. The compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a reagent in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The reagent includes a photographically useful group such as a complete dye or dye intermediate.

REFERENCES:
patent: 3719489 (1973-03-01), Cieciuch et al.
patent: 4098783 (1978-07-01), Cieciuch et al.
patent: 5021329 (1991-06-01), Kawagishi et al.
patent: 5328799 (1994-07-01), Freedman et al.
patent: 5415970 (1995-05-01), Arnost et al.

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