Stabilizers for use in substantially light-insensitive...

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C430S611000, C430S964000, C430S965000

Reexamination Certificate

active

06902880

ABSTRACT:
A substantially light-insensitive 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 stabilizer selected from the group consisting of 1-(5-mercapto-1-tetrazolyl)-acetyl compounds represented by formula (I):wherein R1is —NR2R3, —OR4or an optionally substituted aryl or heteroaryl group; R2is hydrogen or an optionally substituted alkyl, aryl or heteroaryl group; R3is an optionally substituted aryl or heteroaryl group; and R4is an optionally substituted aryl group; and compounds with two or more groups represented by formula (II):where Q comprises the necessary atoms to form a 5- or 6-membered unsaturated heterocyclic ring, A is hydrogen, a counterion to compensate the negative charge of the thiolate group or two or more A groups provide a linking group between the two or more groups represented by formula (II).

REFERENCES:
patent: 4201582 (1980-05-01), White
patent: 4569899 (1986-02-01), Inagaki et al.
patent: 5686228 (1997-11-01), Murray et al.
patent: 5922529 (1999-07-01), Tsuzuki et al.
patent: 6348308 (2002-02-01), Loccufier et al.
patent: 2001/0038977 (2001-11-01), Katoh
patent: 2002/0155401 (2002-10-01), Yamaguchi
patent: 0 218 385 (1987-04-01), None
patent: 0 256 820 (1988-02-01), None
patent: 0 295 507 (1988-12-01), None
patent: 0 713 133 (1996-05-01), None
patent: 0 807 850 (1997-11-01), None
patent: 0 838 722 (1998-04-01), None
patent: 0 897 130 (1999-02-01), None
patent: 0 901 040 (1999-03-01), None
patent: 0 933 672 (1999-08-01), None
patent: 1 079 269 (2001-02-01), None
patent: 1 164 421 (2001-12-01), None
patent: WO 94/16361 (1994-07-01), None
patent: WO 96/10213 (1996-04-01), None
patent: WO 01/96944 (2001-12-01), None
Search Report for EP 02 10 2586 (Feb. 27, 2003).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Stabilizers for use in substantially light-insensitive... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stabilizers for use in substantially light-insensitive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilizers for use in substantially light-insensitive... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3502683

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.