G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 7/24 (2006.01) G11B 7/241 (2006.01) G11B 7/244 (2006.01) G11B 7/247 (2006.01) G11B 7/249 (2006.01) G11B 7/26 (2006.01)
Patent
CA 2364496
In addition to a cationic dye and at least one substance which functions as a quenching agent, the inventive recording medium contains a stabiliser in order to increase the stability of the optical data storage device, which has a recording layer consisting of such a recording medium. Said stabiliser is a phenol with one or more hydroxy groups which is advantageously present in the recording medium in the form of a phenolate ion and which forms part of the anions for the dye cations. In addition, the recording medium can also contain an anionic, metallo-organic thiolene complex which replaces a usual quencher and forms another part of the anions for the dye cations.
L'invention vise à accroître la stabilité de mémoires de données optiques présentant une couche d'enregistrement constituée d'un support d'enregistrement. A cet effet, ce dernier contient, outre un colorant cationique et au moins une substance présentant une fonction d'extinction de luminescence, un stabilisateur. Ce dernier est un phénol comportant un ou plusieurs groupes hydroxy, se présentant de préférence sous la forme d'une phénolation dans le support d'enregistrement et formant une partie des anions pour les cations du colorant. Ce support d'enregistrement peut en outre contenir un complexe thiol anionique, organométallique, qui remplace l'extincteur de luminescence usuel et forme une autre partie des anions pour les cations du colorant.
Bakardjieva-Eneva Jana
Rakovski Slavtcho
Zafirov Atanas
Freedman Gordon
Vivastar Materials Ag
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