Patent EP-0567172-A1 (EP)
Inventor: VANMAELE LUC C O AGFA-GEVAERT
IPC: C09B53/02
Filed: 1993-03-25
Abstract: Dye-donor element for use according to thermal dye sublimation transfer, said dye-donor element comprising a support provided with a dye layer containing a dye dispersed in a polymeric binder, characterized in that said dye corresponds to the following formula (I)
       
 wherein 
   R¹, R² and R³ independently represent hydrogen, halogen, nitro, an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, an aryloxy group, a alkylthio group, a arylthio group, an acylamino group, a sulfamoyl group, a carbamoyl group, which groups may be substituted, or R² and R³ together can form a saturated or aromatic or heterocyclic ring fused-on the cyclohexadiene ring, which ring may be substituted;
       
 wherein 
   R⁴ represents hydrogen, an alkyl group, a cycloalkyl group, an aryl group, which groups may be substituted, SO₂R¹⁰, COR¹⁰, POR¹⁰R¹¹; 
   R⁵ represents hydrogen, halogen, nitro, cyano, an alkyl group, an aryl group, an alkoxy group, an alkylthio group, which groups may be substituted; 
   R⁶ and R 6'  independently represent an alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an amino group or a heterocyclic group, which groups may be substituted, or R⁶ and R 6'  together form a 5- or 6-membered ring, which ring may be substituted; 
   R⁷ represents an alkyl group, an aryl group, a cycloalkyl group, which groups may be substituted; 
   R⁸ and R⁹ independently represent hydrogen, an alkyl group,an aryl group, a cycloalkyl group, which groups may be substituted, or R⁸ and R⁹ together can form a heterocyclic ring, which ring may be substituted; 
   R¹⁰ and R¹¹ independently represent an alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an amino group or a heterocyclic group, which groups may be substituted, or R¹⁰ and R¹¹ together form a 5- or 6-membered ring, which ring may be substituted; 
K represents
       
 wherein: 
   R¹² and R¹³ (independently) represent hydrogen, an alkyl group, an aryl group, a heterocyclic group, which groups may be substituted, or R¹² and R¹³ together represent the necessary atoms to close a heterocyclic ring, which ring may be substituted, or R¹² and/or R¹³ together with R¹⁴ and/or R¹⁷ represent the necessary atoms to close a ring fused-on the benzene ring, which ring may be substituted; 
   R¹⁴, R¹⁵, R¹⁶ and R¹⁷ independently represent hydrogen, hydroxy, halogen, an alkyl group, a cycloalkyl group, an aryl group, an alkyloxy group, an aryloxy group, a carbamoyl group, a sulfamoyl group, which groups may be subsituted which groups may be substituted, NH-SO₂R¹⁸, NH-COR¹⁸, O-SO₂R¹⁸, O-COR¹⁸, or R¹⁴ and R¹⁵ together and/or R¹⁶ and R¹⁷ together represent the necessary atoms to close (a) ring(s) fused-on the benzene ring or R¹⁴ and/or R¹⁷ together with R¹² and/or R¹³ represent the necessary atoms to close a heterocyclic ring fused-on the benzene ring, which groups may be substituted; 
   R¹⁸ represents an alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an aryl group, an alkyloxy group, an aryloxy group, an alkylthio group, an arylthio group, an amino group, a heterocyclic group, which groups may be substituted.