Novel electron donor precursors and photographic element contain

Details Novel electron donor precursors and photographic element contain Novel electron donor precursors and photographic element contain

1979-09-06

1981-04-21

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430222, 430239, 430241, 430390, 430440, 430443, 430446, 430483, 430564, 430566, 430559, 430959, G03C 140, G03C 700, G03C 554, G03C 110

Patent

active

042633931

ABSTRACT:
Novel electron donor precursors have the structure: ##STR1## wherein: Z represents the atoms to complete a mono-, bi- or tricyclic ring system, each ring of which contains 5 to 6 nuclear atoms;

REFERENCES:
patent: 2957883 (1960-10-01), Novello
patent: 4139379 (1979-02-01), Chasman et al.
patent: 4139389 (1979-02-01), Hinshaw et al.
Hettler, Advances in Heterocyclic Chemistry vol. 15, Academic Press, N.Y., 1973, pp. 223-276.

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