Patent EP-0792757-A1 (EP)
Inventor: VANMAELE LUC
IPC: B41M5/388
Filed: 1996-02-27
Abstract: The present invention provides a dye-donor element for use according to thermal dye sublimation transfer, said dye-donor element comprising a support having thereon a dye layer comprising a polymeric binder and at least one dye, wherein said at least one dye corresponds to the following general formula (I) :
      wherein :
     
     X represents N-R or   R represents NR 3 R 4  or the residue of an aromatic coupling compound R-Q wherein Q is a group displaceable by a diazotised amine;   R 1  represents NR 3 R 4 , OR 12  or SR 12 ;   R 2  represents hydrogen, cyano, COR 13 , CO 2 R 13 , CONR 14 R 15  or SO 2 R 16 ;   R 3  and R 4  each independently represent hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group or R 3  and R 4  together with the nitrogen atom to which they are attached represent the atoms necessary to complete a ring or R 3  and/or R 4  and one of the Y-substituents together with the atoms to which they are attached represent the necessary atoms to form a 5- or 6- membered, fused-on heterocyclic ring ;   Y represents a substituent, e.g. SH, OH, an amino group, a halogen, CN, NO 2 , an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, a thioalkoxy group, a carbamoyl group, a sulfamoyl group, an acylamino group, a sulfonylamino group or a carboxylic ester;   n represents 0, 1, 2, 3 or 4, the substituents being the same or different when n is greater than 1 or two or more Y substituents can form an annelated ring system;   R 12 , R 13 , R 14  and R 15  each independently represent hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic ring or R 14  and R 15  together with the atoms to which they are attached represent the necessary atoms to form a 5- or 6-membered ring or R 12  or R 13  or R 14  or R 15  together with one of the Y-substituents and the atoms to which they are attached represent the necessary atoms to form a 5- or 6-membered fused-on heterocyclic ring;   R 16  represents hydroxy, an alkoxy group, an aryloxy group, NR 17 R 18 , an aryl group, an alkyl group, an alkenyl group, an alkynyl group, or R 16  together with one of the Y-substituents and the atoms to which they are attached represent the necessary atoms to form a 5- or 6-membered fused-on heterocyclic ring;   R 17  and R 18  each independently represent hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic ring or R 17  and R 18  together with the atoms to which they are attached represent the necessary atoms to form a 5- or 6-membered ring;   A represents an alkyl group, an alkenyl group, an alkynyl group or an aryl group;   G represents hydrogen, CN or R 19 -C=B;   Z represents hydrogen, halogen, CN, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, an alkoxy group, a thioalkoxy group, a sulphone group, or G and Z together with the atoms to which they are attached represent the atoms necessary to form an alicyclic, aromatic or heteroaromatic ring;   B represents O, N-R 20 , CR 21 R 22 ;   R 19  represents hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an aryloxy group, an alkoxy group, such as methoxy or ethoxy, a alkylthio group, an amino group, an electron withdrawing group, e.g. CN, a halogen, a carboxylic ester, an amide e.g. carboxylamide, a sulphonate, a phosphonate, a carbonyl group, a nitro group or R 19  and R 21 , R 22  or R 20  together with the atoms to which they are attached represent the necessary atoms to form a ring;   R 20  represents H, CN, NR 23 R 24 , OR 23 , OCOR 23 , OCO 2 R 23 , OCONR 23 R 24 , OSO 2 R 23 , OP(O)(OR 23 )(OR 24 ), an alkyl group, an alkenyl group, an alkynyl group or an aryl group;   R 21  and R 22  independently represent a heterocyclic ring, e.g. thiazolyl, benzothiazolyl, isothiazolyl, benzoisothiazolyl, thienyl, pyridinyl, imidazolyl, benzimidazolyl, pyrazolyl, oxazolyl, thiadiazolyl, triazolyl, quinolyl, isoquinolyl, pyridoisothiazolyl, benzoxazolyl, isoxazolyl, benzoisoxazolyl, pyrrolyl and isothiadiazolyl or an electron withdrawing group. e.g. CN, a carboxylic ester, an amide e.g. carboxylamide, a sulphonate, a phosphonate, a carbonyl group, a nitro group or R 21  and R 22  together with the atoms to which they are attached represent the necessary atoms to form a ring;   R 23  and R 24  independently represent hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic ring e.g. as defined hereinbefore, or R 23  and R 24  together with the atoms to which they are attached represent the atoms necessary to form a heterocyclic ring.