Global Patent Index - EP 1006405 A1

EP 1006405 A1 2000-06-07 - Black and white thermographic recording material with improved image tone

Title (en)

Black and white thermographic recording material with improved image tone

Title (de)

Thermographisches Schwarz-Weiss-Aufzeichnungsmaterial mit verbessertem Bildton

Title (fr)

Matériau d'enregistrement thermographique noir et blanc ayant un ton de l'image amélioré

Publication

EP 1006405 A1 (EN)

Application

EP 99204003 A

Priority

  • EP 99204003 A
  • EP 98204016 A

Abstract (en)

A substantially light-insensitive black and white monosheet thermographic recording material comprising a support and a thermosensitive element provided with a protective layer, the thermosensitive element containing a substantially light-insensitive organic silver salt, a 1,2-dihydroxy-benzene derivative in thermal working relationship therewith and a first polymer having active hydrogen atoms at least part of which has reacted with a first polyisocyanate selected from the group consisting of: hexamethylene diisocyanate, toluene diisocyanate, diphenylmethane diisocyanat, naphthylene diisocyanate and triphenylmethane-p,p',p''-trityl triisocyanate; and the protective layer being exclusive of fluorine-containing compounds; and a thermographic recording process therefor.

IPC 1-7 (main, further and additional classification)

G03C 1/498

IPC 8 full level (invention and additional information)

G03C 1/498 (2006.01)

CPC (invention and additional information)

G03C 1/4989 (2013.01)

Combination set (CPC)

G03C 1/4989 + G03C 1/49863 + G03C 1/30

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 1006405 A1 20000607; EP 1006405 B1 20030723

INPADOC legal status


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2003-07-23 [REG GB FG4D] EUROPEAN PATENT GRANTED

2002-02-20 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: AGFA-GEVAERT

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