METALLKOMPLEXE ALS LICHTABSORBIERENDE VERBINDUNGEN IN DER INFORMATIONSSCHICHT VON OPTISCHEN DATENTR GERN
    5.
    发明公开
    METALLKOMPLEXE ALS LICHTABSORBIERENDE VERBINDUNGEN IN DER INFORMATIONSSCHICHT VON OPTISCHEN DATENTR GERN 审中-公开
    金属配合物作为光学数据载体的信息层的光吸收性化合物如

    公开(公告)号:EP1709039A1

    公开(公告)日:2006-10-11

    申请号:EP05700952.4

    申请日:2005-01-15

    摘要: The invention relates to optical data carriers containing a preferably transparent substrate that is optionally already coated with at least one reflective layer. An information layer on which data can be written with light, optionally at least one reflective layer, and optionally a protective layer or another substrate or a covering layer, are applied to the surface of said substrate, and can be written on or read with a blue light, preferably light having a wavelength of between 360-460 nm, especially between 390 and 420 nm, preferably between 400 and 410 nm, and preferably laser light. The information layer contains a light-absorbent compound and optionally a binding agent. The inventive data carriers are characterised in that at least one metallic complex is used as a light-absorbent compound, comprising at least one ligand of formula (I) wherein (A) represents an optionally substituted and/or benzene-annelated or naphthane-annelated, five or six-membered, aromatic or quasi-aromatic or partially hydrated, heterocyclic radical, n represents 0 or 1, Y1 represents N or C-R1, Y2 represents N or C-R2, Y3 represents N or C-R3, X represents O, S or N-R5, R5 represents hydrogen, alkyl, alkenyl, aralkyl, cycloalkyl, acyl, aryl or a heterocyclic radical, Rl to R4 independently represent hydrogen, halogen, alkyl, alkoxy, monoalkylamino or dialkylamino, aralkyl, aryl, hetaryl, arylazo, hetarylazo, cyano or alkoxycarbonyl, R1; R2, R2; R3 and R4; R5 can respectively form a bridge independently from each other, and R2; R5 can form a bridge when n is 0.