Organic/inorganic developer composition

Details Organic/inorganic developer composition Organic/inorganic developer composition

1998-03-31

2000-07-04

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Developer

430435, 430400, 430446, 430479, 430480, 430483, G03C 530

Patent

active

060836733

ABSTRACT:
The present invention concerns an organic/inorganic developer composition comprising a regeneratable iron chelate, novel codevelopers of the phenidone type including one or more solubilizing groups that are not directly attached to the phenyl nucleus or to the pyrazolidino nucleus and optionally ascorbic acid. These compositions are particularly useful for the black-and-white development of films or photographic papers, in particular for the fast development of radiographic products.

REFERENCES:
patent: 3865591 (1975-02-01), Katz
patent: 3887375 (1975-06-01), Newman et al.
patent: 3938997 (1976-02-01), Fisch et al.
patent: 3942985 (1976-03-01), Newman et al.
patent: 3982945 (1976-09-01), Willems
patent: 5041363 (1991-08-01), Sakuma
patent: 5098819 (1992-03-01), Knapp
patent: 5187050 (1993-02-01), Yamada et al.
patent: 5236816 (1993-08-01), Purol et al.
patent: 5238791 (1993-08-01), Tappe et al.
patent: 5310631 (1994-05-01), Nakamura et al.
patent: 5474879 (1995-12-01), Fitterman et al.
UDC 77.023.415.22 . . . "The superadditive and activating action of 1-(p-carboxy-ethylpenyl)-pyrazolidone-3" by VL Abritalin et al from ALL-union State Scientific and Design Institute of the Chemical-Photographic Industry, Sep. 1972.

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