Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1978-03-02
1980-01-29
Schilling, Richard C.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430957, 430379, 430382, 430218, G03C 148, G03C 106, G03C 140, G03C 530
Patent
active
041860128
ABSTRACT:
Non-diffusible thioether compounds capable of releasing, on reaction with color developer oxidation compounds, a diffusible silver halide development inhibitor without at the same time forming permanent dyes to any substantial extent are characterized by containing a group of the formula ##STR1## or its tautomeric form, wherein Z.sup.1 represents an electron attracting substituent and X represents an aliphatic, aromatic or heterocyclic group that if released together with the sulfur atom, forms a diffusible silver halide development inhibiting mercaptane.
REFERENCES:
patent: 3028238 (1962-04-01), Puschel et al.
patent: 3227554 (1966-01-01), Barr et al.
patent: 3620745 (1971-11-01), Seymour
patent: 4088491 (1978-05-01), Odenwalder et al.
Odenwalder Heinrich
Pollet Robert J.
Puschel Walter
Ranz Erwin
Agfa-Gevaert Aktiengesellschaft
Schilling Richard C.
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