OPTICAL RECORDING MEDIUM, METAL COMPLEX COMPOUND AND ORGANIC DYE COMPOUND

Title:

OPTICAL RECORDING MEDIUM, METAL COMPLEX COMPOUND AND ORGANIC DYE COMPOUND

Document Type and Number:

WIPO Patent Application WO/2006/104196

Kind Code:

A1

Abstract:

[PROBLEMS] To provide an optical recording medium having a recording layer improved in light stability that is capable of recording and regeneration of high-density optical information by short-wavelength laser beams. [MEANS FOR SOLVING PROBLEMS] There is provided an optical recording medium comprising a recording layer containing an organic dye compound wherein the recording layer contains a metal complex compound composed of any of pyridone azo compounds of the following general formulae [I] to [III] having a 6-hydroxy-2-pyridone structure as a coupler component and having an isoxazole, 1,2,4-triazole or pyrazole structure as a diazo component and, coordinating therewith, an ion of bivalent metal, such as nickel, cobalt, iron, zinc, copper or manganese. [I] [II] [III] In the general formulae [I] to [III], each of R₁ to R₁₀ independently is a hydrogen atom or a monovalent functional group.

Inventors:

MIYAZAWA TAKASHI (JP)
KUROSE YUTAKA (JP)

Application Number:

PCT/JP2006/306469

Publication Date:

October 05, 2006

Filing Date:

March 29, 2006

Export Citation:

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Assignee:

MITSUBISHI KAGAKU MEDIA CO LTD (JP)
MIYAZAWA TAKASHI (JP)
KUROSE YUTAKA (JP)

International Classes:

B41M5/26; G11B7/244

Foreign References:

JPH04211477A	1992-08-03
JPH1134500A	1999-02-09

Other References: