Title:
PYRIDINE N-OXIDE BASED AZO DYES AND THEIR METAL COMPLEXES FOR USE IN OPTICAL LAYERS FOR OPTICAL DATA RECORDING
Document Type and Number:
WIPO Patent Application WO2006061398
Kind Code:
A3
Abstract:
The present invention relates to the use of pyridine N-oxide based azo dyes and their metal complexes in optical layers for optical data recording, preferably for optical data recording using a blue laser with a wavelength up to 450 nm or a red laser with a wavelength up to 650 nm. The invention further relates to a write only read many (WORM) type optical recording medium capable of recording and reproducing information with radiation of a blue or red laser, which employs a pyridine N-oxide based azo dye or a respective metal complex in the optical layer.
Inventors:
PAYS CHRISTOPHE (FR)
Application Number:
PCT/EP2005/056559
Publication Date:
August 03, 2006
Filing Date:
December 07, 2005
Export Citation:
Assignee:
CLARIANT INT LTD (CH)
PAYS CHRISTOPHE (FR)
PAYS CHRISTOPHE (FR)
International Classes:
G11B7/246; C09B29/036; G11B7/2467; G11B7/249; G11B7/2492; G11B7/253; G11B7/2531; G11B7/2533; G11B7/2534; G11B7/2535; G11B7/254; G11B7/2542; G11B7/257; G11B7/2575
Foreign References:
| EP0995612A1 | 2000-04-26 | |||
| US20030148216A1 | 2003-08-07 | |||
| US4153065A | 1979-05-08 |
Other References:
RENKO ET. AL.: "Prilog istrazivanja...", KEMIJA U INDUSTRIJI, vol. 28, no. 2, 1979, pages 53 - 58, XP008050974
KOPRIVANAC ET. AL.: "Mass Spectra of some 2-Hydroxynaphthalene-1-azo-2'-Pyridine-N-xide Metal Chelates", INTERNATIONAL JOURNAL OF MASSSPECTROMETRY, vol. 47, 1983, Amsterdam, NL, pages 531 - 534, XP008050968
BEAUPRÉ ET. AL.: "The Spectrophotometric Determination of Scandium with ...", MICROCHIMICA ACTA, vol. II, 1982, Hamburg, DE, pages 419 - 422, XP008050971
RAZUS A C ET AL: "Azulene-1-azopyridine 1'-oxides", DYES AND PIGMENTS, ELSEVIER APPLIED SCIENCE PUBLISHERS. BARKING, GB, vol. 57, no. 3, June 2003 (2003-06-01), pages 223 - 233, XP004422143, ISSN: 0143-7208
BEAUPRÉ ET. AL.: "The Simultaneous Spectrophotometric Determination of Iron and Copper with ...", MICROCHIMICA ACTA, vol. III, 1983, Hamburg, DE, pages 71 - 75, XP008050970
BEAUPRÉ ET. AL.: "The Spectrophotometric Determination of Zirconium with ...", MICROCHIMICA ACTA, vol. II, 1980, Hamburg, DE, pages 53 - 57, XP002340493
KOPRIVANAC ET. AL.: "Mass Spectra of some 2-Hydroxynaphthalene-1-azo-2'-Pyridine-N-xide Metal Chelates", INTERNATIONAL JOURNAL OF MASSSPECTROMETRY, vol. 47, 1983, Amsterdam, NL, pages 531 - 534, XP008050968
BEAUPRÉ ET. AL.: "The Spectrophotometric Determination of Scandium with ...", MICROCHIMICA ACTA, vol. II, 1982, Hamburg, DE, pages 419 - 422, XP008050971
RAZUS A C ET AL: "Azulene-1-azopyridine 1'-oxides", DYES AND PIGMENTS, ELSEVIER APPLIED SCIENCE PUBLISHERS. BARKING, GB, vol. 57, no. 3, June 2003 (2003-06-01), pages 223 - 233, XP004422143, ISSN: 0143-7208
BEAUPRÉ ET. AL.: "The Simultaneous Spectrophotometric Determination of Iron and Copper with ...", MICROCHIMICA ACTA, vol. III, 1983, Hamburg, DE, pages 71 - 75, XP008050970
BEAUPRÉ ET. AL.: "The Spectrophotometric Determination of Zirconium with ...", MICROCHIMICA ACTA, vol. II, 1980, Hamburg, DE, pages 53 - 57, XP002340493
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