US5231173A
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Disazo metal chelate compounds for optical recording media
Assignee: Mitsubishi Chemical Media Co Ltd
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Filing: 1991-03-19
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Granted: 1993-07-27
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Expires: 2011-03-19
Abstract
Abstract A metal chelate compound of a dis-azo compound represented by the following formula (I) with a metal: ##STR1## (wherein A is a residue forming a heterocyclic ring together with the carbon atom and the nitrogen atom to which it is bonded, X is a residue forming an aromatic group together with the two carbon atoms to which it is bonded, and D is an aromatic residue which may have a substituent, or a heterocyclic amine residue which may have a substituent, and Y is a group having active hydrogen) and an optical recording medium having a recording layer provided on a substrate so that information can be written in and/or read out by a laser, wherein the recording layer contains a metal chelate compound of the dis-azo compound represented by the above formula (I), with a metal.
Inventors
- 👤 Tetsuo Murayama
- 👤 Shuichi Maeda
- 👤 Satoru Imamura
- 👤 Masako Takeuchi
- 👤 Takumi Nagao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:44
CPC Classifications
C; C09; C09B; C09B69/00; C09B69/02; C09B31/00; C09B31/02; C09B31/04; C09B31/043; C09B31/053; C09B45/00; G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/242; G11B7/244; G11B7/246; G11B7/2467; G11B7/249; G11B7/2495; G11B7/252; G11B7/253; G11B7/2533; G11B7/2534; G11B7/254; G11B7/2542; G11B7/258; G11B7/2595
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
132 words
A metal chelate compound of a dis-azo compound represented by the following formula (I) with a metal: ##STR184## is selected from the group consisting of ##STR185## wherein ring B may be substituted by a C 1-6 alkyl group, a C 1-6 alkoxy group, or a halogen atom, R 3 is a hydrogen atom, a C 1-6 alkyl group, a C 1-6 alkoxy group, a halogen atom or a C 1-12 aryl group, and R 15 is a hydrogen atom or a C 1-6 alkyl group, X is a residue forming an aromatic group together with the two carbon atoms to which it is bonded, D is an aromatic residue which may have a substituent, or a heterocyclic amine residue which may have a substituent, and Y is a group having active hydrogen.
Claim 2
Dependent Claim
132 words
A metal chelate compound of a dis-azo compound represented by the following formula (I) with a metal: ##STR184## is selected from the group consisting of ##STR185## wherein ring B may be substituted by a C 1-6 alkyl group, a C 1-6 alkoxy group, or a halogen atom, R 3 is a hydrogen atom, a C 1-6 alkyl group, a C 1-6 alkoxy group, a halogen atom or a C 1-12 aryl group, and R 15 is a hydrogen atom or a C 1-6 alkyl group, X is a residue forming an aromatic group together with the two carbon atoms to which it is bonded, D is an aromatic residue which may have a substituent, or a heterocyclic amine residue which may have a substituent, and Y is a group having active hydrogen.
Claim 3
Dependent Claim
104 words
The metal chelate compound according to claim 1, wherein the residue X in the formula (I) has at least one substituent selected from the group consisting of --NR 1 R 2 wherein each of R 1 and R 2 which are independent from each other, is a hydrogen atom, a C 1-20 alkyl group which may have a substituent, a C 1-12 aryl group which may have a substituent, a C 2-10 alkenyl group which may have a substituent, or a C 3-10 cycloalkyl group which may have a substituent, a C 1-6 alkyl group, a C 1-6 alkoxy group, and a halogen atom.
Claim 4
Dependent Claim
181 words
The metal chelate compound according to claim 1, wherein the residue D in the formula (I) is the one selected from the group consisting of residues represented by the following formulas: ##STR186## wherein ring E may have a substituent, each of the substituent of ring E, R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and R 10 which are independent from one another, is a C 1-20 alkyl group, a C 3-10 cycloalkyl group which may be substituted by a C 1-20 alkyl group, a C 1-20 alkoxy group, a nitro group, a cyano group, --COOR 17 , wherein R 17 is a C 1-20 alkyl group, a C 3-10 cycloalkyl group which may have a substituent, or a phenyl group which may have a substituent, a phenyl group which may be substituted by a C 1-20 alkyl group or a C 1-20 alkoxy group, a C 1-10 alkylsulfonyl group, a halogen atom, or a C 10-3 perfluoroalkyl group, n is a 1 or 2, and m is 1, 2 or 3.
Claim 5
Dependent Claim
96 words
The metal chelate compound according to claim 1, wherein the substituent Y in the formula (I) is the one selected from the group consisting of --OH, --SH, --COOH, --SO 2 H, --SO 3 H, --NH 2 , B(OH) 2 , --PO(OH) 2 , --NHR 16 , --NHCOR 16 and --NHSO 2 R 16 wherein R 16 is a C 1-6 alkyl group, a C 1-6 alkoxy group, a phenyl group which may be substituted by a halogen atom, or a C 1-6 alkyl group which may be substituted by a halogen atom, or a salt thereof.
Claim 6
Dependent Claim
94 words
The metal chelate compound according to claim 1, wherein the dis-azo compound is a dis-azo compound represented by the following formula (II): ##STR187## wherein ring B may be substituted by a C 1-6 alkyl group, a C 1-6 alkoxy group, or a halogen atom, X is a residue forming an aromatic group together with the two carbon atoms to which it is bonded, D is an aromatic residue which may have a substituted, or a heterocyclic amine residue which may have a substituent, and Y' is --COOH, --SO 3 H, or a salt thereof.
Claim 7
Dependent Claim
140 words
The metal chelate compound according to claim 1, wherein the dis-azo compound is a dis-azo compound represented by the following formula (III): ##STR188## wherein ring B may be substituted by a C 1-6 alkyl group, a C 1-6 alkoxy group, or a halogen atom, D is an aromatic residue which may have a substituent, or a heterocyclic amine residue which may have a substituent, Y' is --COOH, --SO 3 H, or a salt thereof, and each of R 1 and R 2 which are independent from each other, is a hydrogen atom, a C 1-20 alkyl group which may have a substituent, A C 6-12 aryl group which may have a substituent, a C 2-10 alkenyl group which may have a substituent, or a C 3-10 cycloalkyl group which may have a substituent, and ring C may have a substituent.
Claim 8
Dependent Claim
124 words
The metal chelate compound according to claim 1, wherein the dis-azo compound is a dis-azo compound represented by the following formula (IV): ##STR189## wherein ring B may be substituted by a C 1-6 alkyl group, a C 1-6 alkoxy group, or a halogen atom, Y' is --COOH, --SO 3 H, or a salt thereof, each of R 1 and R 2 which are independent from each other, is a hydrogen atom, a C 1-20 alkyl group which may have a substituent, a C 6-12 aryl group which may have a substituent, a C 2-10 alkenyl group which may have a substituent, or a C 3-10 cycloalkyl group which may have a substituent, and each of ring C and ring E may have a substituent.
Claim 9
Dependent Claim
100 words
The metal chelate compound according to claim 1, wherein the dis-azo compound is a dis-azo compound represented by the following formula (V): ##STR190## wherein X is a residue forming an aromatic group together with the two carbon atoms to which it is bonded, D is an aromatic residue which may have a substituent, or a heterocyclic amine residue which may have a substituent, Y is a group having active hydrogen, or a salt thereof, and R 3 is a hydrogen atom, a C 1-6 alkyl group, a C 1-6 alkoxy group, a halogen atom, or a C 1-12 aryl group.
Claim 10
Dependent Claim
134 words
The metal chelate compound according to claim 1, wherein the dis-azo compound is a dis-azo compound represented by the following formula (VI): ##STR191## wherein D is an aromatic residue which may have a substituent, or a heterocyclic amine residue which may have a substituent, each of R 1 and R 2 which are independent from each other, is a hydrogen atom, a C 1-20 alkyl group which may have a substituent, a C 6-12 aryl group which may have a substituent, a C 2-10 alkenyl group which may have a substituent, or a C 3-10 cycloalkyl group which may have a substituent, R 3 is a hydrogen atom, a C 1-6 alkyl group, a C 1-6 alkoxy group, a halogen atom, or a C 1-12 aryl group, and ring C may have a substituent.
Claim 11
Dependent Claim
119 words
The metal chelate compound according to claim 1, wherein the dis-azo compound is a dis-azo compound represented by the following formula (VII): ##STR192## wherein each of R 1 and R 2 which are independent from each other, is a hydrogen atom, a C 1-20 alkyl group which may have a substituent, a C 6-12 aryl group which may have a substituent, a C 2-10 alkenyl group which may have a substituent, or a C 3-10 cycloalkyl group which may have a substituent, R 3 is a hydrogen atom, a C 1-6 alkyl group, a C 1-6 alkoxy group, a halogen atom, or a C 6-12 aryl group, and each of ring C and ring E may have a substituent.
References Cited (Backward Citations)
DE943661C
Cited
JPS5276331A
Cited
US4124581A
Cited
US4207233A
Cited
JPS5460221A
Cited
JPS54141820A
Cited
JPS5896655A
Cited
JPS6230090A
Cited
JPS6213461A
Cited
US4908435A
Cited
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