Toning agents for use in thermographic recording materials

Details Toning agents for use in thermographic recording materials Toning agents for use in thermographic recording materials

2006-03-28

2006-03-28

Schilling, Richard L. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Thermographic process

Heat applied after imaging

C430S618000, C430S619000, C430S965000, C430S964000

Reexamination Certificate

active

07018786

ABSTRACT:
A black and white monosheet 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 represented by formula (I):wherein R1is a hydrogen atom or an alkyl, an alkenyl, an alkynyl, a cycloalkyl, an alkaryl, an aryl, a heterocyclic or a heteroaryl group all of which may be optionally substituted; with the proviso that R1may not be a hydrogen atom if both R2and R3are both hydrogen atoms; R2and R3are independently a hydrogen or a halogen atom or an amino, amide, ester, carboxy, carbonate, alkyl, alkenyl, alkynyl, cycloalkyl, alkaryl, aryl, heterocyclic or heteroaryl group all of which may be optionally substituted; R2and R3may together represent the atoms necessary to complete a heteroaromatic ring with no more than one nitrogen atom, an alicyclic or a heterocyclic group which all may be optionally substituted; and X is a carbonyl group, or is —N—R4, where R4is an alkyl group.

REFERENCES:
patent: 3080254 (1963-03-01), Grant Jr.
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: 4624911 (1986-11-01), Idota et al.
patent: 5599647 (1997-02-01), Defieuw et al.
patent: 6479227 (2002-11-01), Kubo et al.
patent: 0 752 616 (1997-01-01), None
patent: 0 921 433 (1999-06-01), None
patent: 1 191 394 (2002-03-01), None
patent: 11 202444 (1999-07-01), None
patent: WO 96/10213 (1996-04-01), None
Brinckman et al.;Unconventional Imaging Processes, London & New York, 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 Science and Technol., 40(2), 94-103, (Mar./Apr. 1996).
Search Report for EP 02 10 2832 (Jun. 3, 2003).

Affiliated with

Also associated with

Rating

Toning agents for use in thermographic recording materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Toning agents for use in thermographic recording materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toning agents for use in thermographic recording materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3582777