EP 0903624 B1 20030514 - Binders for thermographic materials
Title (en)
Binders for thermographic materials
Title (de)
Bindemittel für thermographische Materialien
Title (fr)
Liants pour des produits thermographiques
Publication
Application
Priority
- EP 98202544 A 19980729
- EP 97202875 A 19970917
Abstract (en)
[origin: EP0903624A1] A substantially light-insensitive black and white thermographic material including a support and a thermosensitive element, containing a substantially light-insensitive organic silver salt, a reducing agent therefor in thermal working relationship therewith and a binder, characterized in that the binder is a water-dispersible film-forming polymer with covalently bonded moieties with one or more acid groups or anhydrides thereof and the thermographic material is thermally developable under substantially water-free conditions; and a process for producing the substantially light-insensitive black and white thermographic material comprising the steps of: producing an aqueous dispersion of the substantially light-insensitive organic silver salt; producing one or more aqueous coating compositions containing together the aqueous dispersion of the substantially light-insensitive organic silver salt, the reducing agent and the binder; and applying the one or more aqueous coating compositions to the support thereby forming after drying the thermosensitive element.
IPC 1-7
IPC 8 full level
G03C 1/498 (2006.01)
CPC (source: EP)
G03C 1/49863 (2013.01); G03C 1/4989 (2013.01); G03C 1/04 (2013.01); G03C 2200/36 (2013.01)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 98202544 A 19980729