EP 0614769 B1 19960925 - Direct thermal imaging material containing a protective layer
Title (en)
Direct thermal imaging material containing a protective layer
Title (de)
Schutzschichtenthalttendes thermisches Direktbildaufzeichnungsmaterial
Title (fr)
Matériau sensible à la chaleur contenant une couche protectrice pour l'enregistrement direct d'images
Publication
Application
Priority
- EP 94200472 A 19940224
- EP 93200653 A 19930308
Abstract (en)
[origin: EP0614769A1] A thermosensitive recording material suited for use in direct thermal imaging by means of an information-wise energized heating element, said recording material containing a thermosensitive recording layer of which the optical density is changed by heat, characterized in that said recording layer is coated with a protective transparent resin layer essentially consisting of a polycarbonate or copolycarbonate derived from one or more bisphenols, wherein at least 25 mole % of said bisphenols consists of a bis-(hydroxyphenyl)-cycloalkane corresponding to following general formula (I): <CHEM> wherein: each of R<1>, R<2> , R<3>, and R<4> (same or different) represents hydrogen, halogen, a C1-C8 alkyl group, a substituted C1-C8 alkyl group, a C5-C6 cycloalkyl group, a substituted C5-C6 cycloalkyl group, a C6-C10 aryl group, a substituted C6-C10 aryl group, a C7-C12 aralkyl group, or a substituted C7-C12 aralkyl group, and X represents the atoms necessary to complete a 5- to 8-membered alicyclic ring, which either carries at least one C1-C6 alkyl group or at least one 5- or 6-membered cycloalkyl group, or carries a fused-on 5- or 6-membered cycloalkyl group.
IPC 1-7
IPC 8 full level
B41M 5/32 (2006.01); G03C 1/498 (2006.01); B41M 5/40 (2006.01); B41M 5/44 (2006.01); B41M 7/00 (2006.01)
CPC (source: EP)
B41M 5/44 (2013.01); G03C 1/4989 (2013.01); B41M 2205/04 (2013.01); B41M 2205/40 (2013.01); G03C 2001/7635 (2013.01)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 94200472 A 19940224