US 2003/0157291 A1 · Optical recording medium, optical recording method and optical recording device

Abstract

An optical recording medium having a substrate and at least a recording layer disposed on the substrate, the recording layer comprising at least one squarylium metal chelate compound which comprises a squarylium compound and a metal; and at least one azo metal chelate compound which comprises another metal and an azo compound expressed by the following formula (A-I): 1 where A and B each independently expresses a residue forming one of a) a heterocyclic ring which may comprise a substituent and b) aromatic ring which may comprise a substituent, by combination with corresponding carbon atoms respectively bonded to A or B, and X expresses an active-hydrogen-containing substituent group. An optical recording method, and optical recording device using the same optical recording medium.

Claims52

Dependent claims

An optical recording medium comprising a substrate and at least a recording layer disposed on the substrate, the recording layer comprising:

at least one squarylium metal chelate compound which comprises a squarylium compound and a metal;
and
at least one azo metal chelate compound which comprises another metal and an azo compound expressed by the following formula (A-I):
160
where A and B each independently express a residue forming one of a) a heterocyclic ring which may have a substituent and b) an aromatic ring which may have a substituent, by combination with the bonded to A and B, respectively, carbon atoms, and X expresses an active-hydrogen-containing substituent group.

2 more elements

An optical recording medium comprising a substrate and at least a recording layer disposed on the substrate, the recording layer comprising:

at least one squarylium metal chelate compound which comprises a squarylium compound and a metal;
and
at least one azo metal chelate compound which comprises another metal and an azo compound expressed by the following formula (B-I):
163
where A expresses a residue forming a heterocyclic ring which may have a substituent by combination with both the carbon atom and the nitrogen atom bonded to A, and B expresses a residue forming one of a) an aromatic ring which may have a substituent and b) a heterocyclic ring which may have a substituent, by combination with the two carbon atoms bonded to B, and X expresses an active-hydrogen-containing substituent group.

2 more elements

An optical recording medium comprising a substrate and at least a recording layer disposed on the substrate, the recording layer comprising:

at least one squarylium metal chelate compound which comprises a squarylium compound and a metal;
and
at least one formazan metal chelate compound which comprises another metal and at least one of formazan compounds expressed by one of the following formula (C-I) or (C-II):
166
where, Z expresses a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with the carbon atom and the nitrogen atom bonded to Z, and may be condensed with another aromatic ring;
A expresses an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic ring residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent;
and B expresses an alkyl group which may have a substituent, an alkenyl group which may have a substituent, or an aryl group which may have a substituent;
167
where, Z1 and Z2 each express a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with both the carbon atom and the nitrogen atom bonded to Z1 and Z2, respectively, and may be condensed with another aromatic ring;
A1 and A2 each independently expresses an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic ring residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent;
B1 and B2 each independently express an alkylene group which may have a substituent or an arylene group which may have a substituent;
W expresses —CH2— or —SO2—;
and n stands for an integer of 0 or 1.

10 more elements

An optical recording medium comprising a substrate and at least a recording layer disposed on the substrate, the recording layer comprising:

at least one squarylium compound;
and
at least one formazan metal chelate compound which comprises a metal and at least one of formazan compounds expressed by one of the following formula (D-I) or (D-II):
170
where, Z expresses a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with both the carbon atom and the nitrogen atom bonded to Z, and may be condensed with another aromatic ring;
A expresses an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic ring residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent;
and B expresses an alkyl group which may have a substituent, or aryl group which may have a substituent;
171
where, Z1 and Z2 each express a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with both the carbon atom and the nitrogen atom bonded to Z1 and Z2, respectively, and may be condensed with another aromatic ring;
A1 and A2 each independently express an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic ring residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent;
B1 and B2 each independently express an alkylene group which may have a substituent or an arylene group which may have a substituent;
W expresses —CH2— or —SO2—;
and m stands for an integer of 0 or 1.

10 more elements

An optical recording method comprising:

A step for exposing an optical recording medium to a light beam having a wavelength of 600 to 720 nm to carry out recording;
wherein the optical recording medium comprises a substrate and at least a recording layer disposed on the substrate, the recording layer containing at least one squarylium metal chelate compound which comprises a squarylium compound and a metal, and at least one formazan metal chelate compound which comprises another metal and at least one of a formazan compound expressed by one of the following formulae (C-I) and (C-II):
180
where, Z expresses a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with both the carbon atom and the nitrogen atom bonded to Z, and may be condensed with another aromatic ring, A expresses a n alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent, and B expresses an alkyl group which may have a substituent, an alkenyl group which may have a substituent or an aryl group which may have a substituent;
181
where, Z1 and Z2 each expresses a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with both the carbon atom and the nitrogen atom bonded to Z1 and Z2, respectively, and may be condensed with another aromatic ring, A1 and A2 each independently expresses an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent, B1 and B2 each independently expresses an alkylene group which may have a substituent or an arylene group which may have a substituent;
W expresses —CH2— or —SO2—, and n stands for an integer of 0 or 1.

4 more elements

An optical recording method comprising:

a step for exposing an optical recording medium to a light beam having a wavelength of 600 to 720 nm to carry out recording,
wherein the optical recording medium comprises a substrate and at least a recording layer disposed on the substrate, the recording layer containing at least one squarylium compound, and at least one formazan metal chelate compound which comprises a metal and at least one of a formazan compound expressed by one of the following formulae (D-I) and (D-II):
183
where, Z expresses a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with both the carbon atom and the nitrogen atom bonded to Z, and may be condensed with another aromatic ring, A expresses an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent, and B expresses an alkyl group which may have a substituent, or an aryl group which may have a substituent;
184
where, Z1 and Z2 each expresses a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with both the carbon atom and the nitrogen atom bonded to Z1 and Z2, and may be condensed with another aromatic ring, A1 and A2 each independently expresses an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent, B1 and B2 each independently expresses an alkylene group which may have a substituent or an arylene group which may have a substituent;
W expresses —CH2— or —SO2—, and m stands for an integer of 0 or 1.

4 more elements

An optical recording device comprising an optical recording medium, wherein the optical recording medium comprises a substrate and at least a recording layer disposed on the substrate, the recording layer containing at least one squarylium metal chelate compound which comprises a squarylium compound and a metal, and at least one formazan metal chelate compound which comprises another metal and at least one of a formazan compound expressed by one of the following formulae (C-I) and (C-II):

191
where, Z expresses a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with the carbon atom and the nitrogen atom bonded to Z, and may be condensed with another aromatic ring, A expresses a n alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent, and B expresses an alkyl group which may have a substituent, an alkenyl group which may have a substituent or an aryl group which may have a substituent:
192
where, Z1 and Z2 each expresses a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with the carbon atom and the nitrogen atom bonded to Z1 and Z2, respectively, and may be condensed with another aromatic ring, A1 and A2 each independently expresses an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent, B1 and B2 each independently expresses an alkylene group which may have a substituent or an arylene group which may have a substituent;
W expresses —CH2— or —SO2—, and n stands for an integer of 0 or 1.

2 more elements

An optical recording device comprising an optical recording medium, wherein the optical recording medium comprises a substrate and at least a recording layer disposed on the substrate, the recording layer containing at least one squarylium compound, and at least one formazan metal chelate compound which comprises a metal and at least one of a formazan compound expressed by one of the following formulae (D-I) and (D-II):

193
where, Z expresses a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with the carbon atom and the nitrogen atom bonded to Z, and may be condensed with another aromatic ring, A expresses an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent, and B expresses an alkyl group which may have a substituent, or an aryl group which may have a substituent;
194
where, Z1 and Z2 each expresses a residue forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring which may have a substituent by combination with the carbon atom and the nitrogen atom bonded to Z1 and Z2, respectively, and may be condensed with another aromatic ring, A1 and A2 each independently expresses an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkylcarbonyl group which may have a substituent, an arylcarbonyl group which may have a substituent, an alkenyl group which may have a substituent, a heterocyclic residue which may have a substituent, or an alkoxycarbonyl group which may have a substituent, B1 and B2 each independently expresses an alkylene group which may have a substituent or an arylene group which may have a substituent;
W expresses —CH2— or —SO2—, and m stands for an integer of 0 or 1.

2 more elements

Dependencies are inferred from the claim text.

Optical recording medium, optical recording method and optical recording device

Life of this patent

Optical recording medium, optical recording method and optical recording device

Life of this patent

Abstract

Claims52