Toning agents for use in substantially light-insensitive...

Details Toning agents for use in substantially light-insensitive... Toning agents for use in substantially light-insensitive...

2006-05-16

2006-05-16

Hess, Bruce H. (Department: 1774)

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Heavy metal reactant

C503S208000

Reexamination Certificate

active

07045487

ABSTRACT:
A black and white monosheet substantially light-insensitive thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one toning agent, wherein the at least one toning agent is selected from compounds represented by formula (I):wherein R1is an alkyl group optionally substituted with a hydroxy, carboxy, carboxy ester, acyl or carbonato group; X is S, O or N—R6; R6is an optionally substituted alkyl group; R2, R3, R4and R5independently represent a hydrogen atom, a halogen atom or an alkyl, an alkoxy, a thio-alkoxy, a nitro, a cyano, a carboxy, a carboxy ester, an acyl, an aldehyde, an acylamido, a sulphonamido, an acylamino, a carbonato, a hydroxy or an aryl group or at least one of R2and R3, R3and R4and R4and R5independently represent the atoms necessary to form a carbocyclic or heterocyclic group or at least one of R1and R5and R2and R6independently represent the atoms necessary to form a heterocyclic ring; and compounds represented by formula (II):wherein R7is an optionally substituted alkyl group; Y is S, O or N—R10; R10is an optionally substituted alkyl group; R8and R9independently represent a hydrogen atom, a halogen atom or an alkyl, an alkoxy, a thio-alkoxy, a nitro, a cyano, a carboxy, a carboxy ester, an acyl, an aldehyde, an acylamido, a sulphonamido, an acylamino, a carbonato, a hydroxy or an aryl group or R8and R9represent the atoms necessary to form a heterocyclic or a non-aromatic carbocyclic ring or at least one of R8and R10and R9and R7independently represent the atoms necessary to form a heterocyclic ring; and both R8and R9cannot both be an alkyl group.

REFERENCES:
patent: 3080254 (1963-03-01), Grant, Jr.
patent: 3418131 (1968-12-01), Bigelow
patent: 3433640 (1969-03-01), Nishio et al.
patent: 3620749 (1971-11-01), Haist et al.
patent: 3666471 (1972-05-01), Ohyama et al.
patent: 3702246 (1972-11-01), Ohyama et al.
patent: 3885967 (1975-05-01), Sashihara et al.
patent: 3893860 (1975-07-01), Sutton et al.
patent: 3951660 (1976-04-01), Hagemann et al.
patent: 4451561 (1984-05-01), Hirabayashi et al.
patent: 6479227 (2002-11-01), Kubo et al.
patent: 0 752 616 (1997-01-01), None
patent: 1 191 394 (2002-03-01), None
patent: 1 101 927 (1968-02-01), None
patent: 07-306492 (1995-11-01), None
patent: 11 202444 (1999-07-01), None
Brinkman et al;Unconventional Imaging Processes,New York & London: The Focal Press, pp. 74-75 (1978).
Sturge et al. (eds.);Imaging Processes and Materials,Neblette's eighth ed., New York: Van Nostrand Reinhold, Chapter 9 (1989).
Zou et al.;J. Imaging Sci.&Tech.,40(2), 94-103 (Mar./Apr. 1996).
Search Report for EP 02 10 2832 (Jun. 3, 2003).

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