Title:
大容量光学記憶媒体
Document Type and Number:
Japanese Patent JP2008510052
Kind Code:
A
Abstract:
The invention accordingly relates to an optical recording medium comprising a substrate, a reflecting layer and a recording layer, wherein the recording layer comprises a compound of formula (I) or a mesomeric or a tautomeric form thereof, wherein M1 is a metal cation in the oxidation state +3, a hydroxy or halogeno metal group wherein the metal is in the oxidation state +4, or an oxo metal group wherein the metal is in the oxidation state +5; (III) and (IV)are each independently of the other (V), (VI) or (VII); (VIII) is (IX), (X), (XI), (XII), (XIII), or (XIV); (XV) is (XVI) or C2-C8heteroaryl unsubstituted or mono- or poly-substituted by R10, R11, R12 and/or R13; Q1 is N or CR18, Q2 is N or CR19, Q3, Q5 and Q7 are each independently of the other CR20R21, O, S or NR22, Q4 is CR16 or N and Q6 is CR17 or N; and R2 and/or R6 are O, S or NR33. Please see the disclosure for the other substituents which are less relevant. The compounds of formula (I) are novel and also claimed, as well as the compound of formula (II), or a mesomer or tautomer thereof, wherein R38 is halogen , CF3, NO2, CN, COR22, COOR23, SO3R23, NCO or SCN, G1, G2M1, R1R2, R4, R5, R6, R8, R22 and R23 are as defined in formula (I), M2m+ is a cation with m positive charges, and m is an integer 1, 2 or 3. The optical recording media are remarkably suitable for DVD±R (658 nm), especially at high recording speeds.
Inventors:
Bache, Jean-Pierre
Baudan, Giselle
Vendeborn, Frederick
Adam, Jean-Marie
Lehman, Urs
Bill Baume, Jean-Luc
Baudan, Giselle
Vendeborn, Frederick
Adam, Jean-Marie
Lehman, Urs
Bill Baume, Jean-Luc
Application Number:
JP2007526443A
Publication Date:
April 03, 2008
Filing Date:
July 06, 2005
Export Citation:
Assignee:
Ciba Specialty Chemicals Holding Inc.
International Classes:
C09B69/02; B41M5/26; C07D209/08; C07D209/14; C07D209/96; C07D277/20; C07D277/50; C07D277/82; C07D285/12; C07D285/135; C07D471/06; C09B23/00; C09B29/085; C09B29/09; C09B29/12; C09B33/06; C09B45/34; G11B7/246; G11B7/2467; G11B7/249; G11B7/2495; G11B7/247; G11B7/2472; G11B7/2492; G11B7/2498; G11B7/253; G11B7/2531; G11B7/2533; G11B7/2534; G11B7/2535; G11B7/257; G11B7/2575; G11B7/258; G11B7/259
Attorney, Agent or Firm:
Hajime Tsukuni
Koshiro Tsukuda
Fusayuki Saito
Koshiro Tsukuda
Fusayuki Saito