EP0483387A1
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EP
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Dye composition and optical recording medium
Assignee: Mitsubishi Chemical Corp
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Filing: 1991-05-22
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Granted: —
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Expires: 2011-05-22
Abstract
Abstract A dye composition comprising a cyanine dye and a metal chelate azo compound between an azo compound of general formula (I) and a metal, wherein A represents a residue which forms a heterocycle together with the carbon and nitrogen atoms to which it is bonded, B represents a residue which forms an aromatic or heterocyclic ring together with the two carbon atoms to which it is bonded, and X represents an active hydrogen group. An optical recording medium wherein the recording layer contains the above composition.
Inventors
- 👤 Shuichi Maeda
- 👤 Satoru Imamura
- 👤 Kazuo Mitsuhashi
- 👤 Takako Tsukahara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 16:35
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/242; G11B7/244; G11B7/249; G11B7/2495; C; C09; C09B; C09B67/00; C09B67/0033; C09B67/0041; G11B7/246; G11B7/2467; G11B7/247; G11B7/2472; G11B7/2498; G11B2007/24612; G11B7/245; G11B7/252; G11B7/253; G11B7/2533; G11B7/2534; G11B7/2539; G11B7/254; G11B7/2542; G11B7/258; G11B7/2595; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S430/00; Y10S430/146; Y10S534/00; Y10S534/01
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A dye-incorporated composition which comprises a cyanine type dye and an azo metal chelate compound comprisesing an azo type compound of the following formula (I): (wherein A is a residue forming a hetero ring together with the carbon atom and the nitrogen atom to which it is bonded, B is a residue forming an aromatic ring or a hetoro ring together with the two carbon atoms to which it is bonded, and X is a group having an active hydrogen), and a metal.
Claim 2
Dependent Claim
117 words
The dye-incorporated composition according to Claim 1, wherein the cyanine type dye is an indolenine type cyanine dye of the following formula (II): (wherein each of P and P' which are independent from each other, is a residue forming an aromatic ring together with the two carbon atoms to which it is bonded, Q is a pentamethine which may have a substituent, each of R³, R⁴, R⁵, R⁶, R⁷ and R⁸ which are independent from one another, is an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkenyl group which may have a substituent, or a cycloalkyl group which may have a substituent, and Z⁻ is an anion residue).
Claim 3
Dependent Claim
28 words
The dye-incorporated composition according to Claim 1, wherein the cyanine dye and the azo metal chelate compound are contained in the ratio of 5:95 to 95:5 by weight.
Claim 4
Dependent Claim
123 words
The dye-incorporated composition according to Claim 1, wherein the residue A forms an thiazole ring which may have a substituent, a benzothiazole ring which may have a substituent, a pyridobenzothiazole ring which may have a substituent, a benzopyridothiazole ring which may have a substituent, a pyridothiazole ring which may have a substituent, a pyridine ring which may have a substituent or a quinoline ring which may have a substituent, and the residue B forms a benzene ring which may have a substituent, a naphthalene ring which may have a substituent, a pyridine ring which may have a substituent, a pyridone ring which may have a substituent, a tetrahydroquinoline ring which may have a substituent or a pyrazole ring which may have a substituent.
Claim 5
Dependent Claim
109 words
The dye-incorporated composition according to Claim 3, wherein the azo type compound is an azo type compound of the following formula (III): (wherein A is a residue forming a hetero ring together with the carbon atom and the nitrogen atom to which it is bonded, each of R⁷ and R⁸ which are independent from each other, is a hydrogen atom, an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkenyl group which may have a substituent or a cycloalkyl group which may have a substituent, X is a group having an active hydrogen, and the ring D may have a substituent).
Claim 6
Dependent Claim
116 words
The dye-incorporated composition according to Claim 5, wherein the azo type compound is a chelate compound comprising an azo type compound of the following formula (IV): (wherein A is a residue forming a hetero ring together with the carbon atom and the nitrogen atom to which it is bonded, each of R⁷ and R⁸ which are independent from each other, is a hydrogen atom, an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkenyl group which may have a substituent or a cycloalkyl group which may have a substituent, X' is a hydrogen atom or a cation, and the ring D may have a substituent) and the metal.
Claim 7
Dependent Claim
77 words
The dye-incorporated composition according to Claim 3, wherein the azo type compound is an azo type compound of the following formula (V): (wherein Y is a residue forming an aromatic ring or a hetero ring together with the thiazole ring to which it is bonded, B is a residue forming an aromatic ring or a hetero ring together with the two carbon atoms to which it is bonded, and X is a group having an active hydrogen).
Claim 8
Dependent Claim
61 words
The dye-incorporated composition according to Claim 7, wherein the azo type compound is an azo type compound of the following formula (VI): (wherein Y is a residue forming an aromatic ring or a hetero ring together with the thiazole ring to which it is bonded, X' is a hydrogen atom or a cation, and the ring D may have a substituent).
Claim 9
Dependent Claim
84 words
The dye-incorporated composition according to Claim 8, wherein the residue Y has hydrogen atoms and at least one substituent selected from an alkyl group, an alkoxy group, an aryloxy group, an aralkyl group, an aryl group, a halogen atom, a cyano group, a nitro group, an ester group, a carbamoyl group, an acyl group, an acylamino group, a sulfamoyl group, a sulfonamide group, an amino group, a hydroxyl group, a phenylazo group, a pyridinoazo group and a vinyl group, which may have a substituent.
Claim 10
Dependent Claim
31 words
The dye-incorporated composition according to any one of Claims 1 to 9, wherein the metal forming the azo metal chelate compound together with the azo type compound is a transition element.
Claim 11
Dependent Claim
42 words
An optical recording medium comprising a substrate and a recording layer formed thereon for information to be written in and/or to be read out, wherein said recording layer contains a dye-incorporated composition as defined in any one of Claims 1 to 11.
References Cited (Backward Citations)
No citation records indexed.
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