Color developing agent composition and method of processing silv

Details Color developing agent composition and method of processing silv Color developing agent composition and method of processing silv

1998-09-01

2000-06-06

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Developer

430467, 430490, G03C 7413

Patent

active

060716797

ABSTRACT:
As it has been described above, a color developing agent composition according to the invention, which includes a compound given by Formula (I) ##STR1## wherein R.sub.1 through R.sub.6 are substituents respectively and independently are selected from the group consisting of a hydrogen atom or any substituted or unsubstituted group selected from among an alkyl group, an alkoxyl group, a hydroxyl group and an amino group, possible substitution groups for the selected group comprising a hydroxyl group, an amino group and an alkoxyl group; (2) a paraphenylene diamine type color developing agent; and (3) a compound given by Formula (II) ##STR2## wherein R.sub.7 and R.sub.8 are substituents respectively and independently selected from the group consisting of a hydrogen atom or a substituted or an unsubstituted alkyl group.

REFERENCES:
patent: 4937178 (1990-06-01), Koboshi et al.
patent: 5354646 (1994-10-01), Kobayashi et al.

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