C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 209/14 (2006.01) C07C 223/04 (2006.01) C07D 209/86 (2006.01) C07D 401/12 (2006.01) C07D 417/12 (2006.01) C07D 471/06 (2006.01) C07D 487/04 (2006.01) C09B 56/00 (2006.01) C09B 57/00 (2006.01) G11B 7/249 (2006.01)
Patent
CA 2362640
Novel squarylium compounds having spectral characteristics, light resistance, solubility and thermal decomposition properties which are favorable for recording material of DVD-R; and optical recording media made by using the same. In particular, novel squarylium compounds represented by general formula (I); and optical recording media provided with recording layers containing the compounds.
L'invention concerne des composés de squarylium dont les caractéristiques spectrales, la résistance à la lumière, la solubilité et les propriétés de décomposition thermique sont favorables à une utilisation comme matériau d'enregistrement pour support DVD inscriptible (DVD-R). L'invention concerne en outre des supports d'information optiques à base de ces composés. En particulier, l'invention concerne des composés de squarylium représentés par la formule générale (I), et des supports d'information optiques dont les couches d'enregistrement sont à base de ces composés.
Ikuta Masanori
Kinugasa Motoharu
Mutoh Kenji
Satoh Tsutomu
Shimizu Ikuo
Kirby Eades Gale Baker
Kyowa Hakko Chemical Co. Ltd.
Kyowa Hakko Kogyo Co. Ltd.
Kyowa Yuka Co. Ltd.
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