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US5034309A
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Naphthalocyanine derivatives and their use in optical recording medium
Assignee: Hitachi Ltd
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Filing: 1988-06-24
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Granted: 1991-07-23
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Expires: 2008-06-24
Abstract
Abstract Novel naphthalocyanine derivatives are disclosed in the specification are useful for forming a recording layer in an optical recording medium. These derivatives are represented by the following formula (I): ##STR1## in which k, l, m and n, which may be the same or different, are zero or integers of 1 to 4, k+l+m+n being an integer of 1 or more; R 1 's in a number of (k+l+m+n), which may be the same or different, are alkyl groups, substituted alkyl groups, or aryl groups; M is Si, Ge or Sn; and two Y's, which may be the same or different, are aryloxyl groups, alkoxyl groups, trialkylsiloxyl groups, triarylsiloxyl groups, trialkoxysiloxyl groups, triaryloxysiloxyl groups, trityloxyl groups, or acyloxyl groups. These derivatives are especially useful in the preparation of an optical recording medium.
Inventors
- 👤 Seiji Tai
- 👤 Shigeru Hayashida
- 👤 Nobuyuki Hayashi
- 👤 Hideo Hagiwara
- 👤 Mitsuo Katayose
- 👤 Koichi Kamijima
- 👤 Takayuki Akimoto
- 👤 Susumu Era
- 👤 Setsuo Kobayashi
- 👤 Akio Mukoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:04
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/21; C09; C09B; C09B47/00; C09B47/04; C09B47/08; C09B47/10; C09B47/045; C09B47/06; C09B47/061; C09B47/063; C09B47/067; C09B47/0675; C09B47/073; C09B47/18; C09B47/20; C09B69/00; C09B69/008; G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/242; G11B7/244; G11B7/246; G11B7/248; Y; Y10; Y10S; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
95 words
A naphthalocyanine derivative represented by the formula: ##STR32## wherein k, l, m and n, which may be the same or different, are zero or integers of 1 to 4, k+l+m+n being an integer of 1 or more; R 1 's in a number of 4(k+l+m+n), which may be the same or different, are alkyl groups, substituted alkyl groups, or aryl groups; M is Si, Ge or Sn; and two Y's, which may be the same or different, are aryloxyl groups, alkoxyl groups, trialkylsiloxyl groups, triarylsiloxyl groups, trialkoxysiloxyl groups, triaryloxysiloxyl groups, trityloxyl groups, or acyloxyl groups.
Claim 2
Dependent Claim
95 words
A naphthalocyanine derivative represented by the formula: ##STR32## wherein k, l, m and n, which may be the same or different, are zero or integers of 1 to 4, k+l+m+n being an integer of 1 or more; R 1 's in a number of 4(k+l+m+n), which may be the same or different, are alkyl groups, substituted alkyl groups, or aryl groups; M is Si, Ge or Sn; and two Y's, which may be the same or different, are aryloxyl groups, alkoxyl groups, trialkylsiloxyl groups, triarylsiloxyl groups, trialkoxysiloxyl groups, triaryloxysiloxyl groups, trityloxyl groups, or acyloxyl groups.
Claim 3
Dependent Claim
17 words
A naphthalocyanine derivative according to claim 1, wherein M is Si or Ge in the formula (I).
Claim 4
Dependent Claim
20 words
A naphthalocyanine derivative according to claim 1, wherein k, l, m and n are all 1 in the formula (I).
Claim 5
Dependent Claim
17 words
A naphthalocyanine derivative according to claim 1, wherein two Y's are trialkylsiloxyl groups in the formula (I).
Claim 6
Dependent Claim
25 words
A naphthalocyanine derivative according to claim 1, wherein all R 1 's are alkyl groups having 1 to 22 carbon atoms in the formula (I).
Claim 7
Dependent Claim
20 words
A naphthalocyanine derivative according to claim 1, wherein all R 1 's are substituted alkyl groups in the formula (I).
Claim 8
Dependent Claim
154 words
A naphthalocyanine derivative according to claim 1, wherein the aryloxyl groups are selected from the group consisting of phenoxyl group, tolyloxyl group and anisyloxyl group; the alkoxyl groups are selected from the group consisting of amyloxyl group, hexyloxyl group, octyloxyl group, decyloxyl group, dodecyloxyl group, tetradecyloxyl group, hexadecyloxyl group, octadecyloxyl group, eicosyloxyl group and docosyloxyl group; the trialkylsiloxyl groups are selected from the group consisting of trimethylsiloxyl group, triethylsiloxyl group, tripropylsiloxyl group and tributylsiloxyl group; the triarylsiloxyl groups are selected from the group consisting of triphenylsiloxyl group, trianisylsiloxyl group and tritolylsiloxyl group; the trialkoxysiloxyl groups are selected from the group consisting of trimethoxysiloxyl group, triethoxysiloxyl group, tripropoxysiloxyl group and tributoxysiloxyl group; the triaryloxysiloxyl groups are selected from the group consisting of triphenoxysiloxyl group, trianisiloxysiloxyl group and tritolyloxysiloxyl group; and the acyloxyl groups are selected from the group consisting of acetyoxyl group, propionyloxyl group, butyryloxyl group, valeryloxyl group, pivaloyloxyl group, hexanoyloxyl group and octanoyloxyl group.
Claim 9
Dependent Claim
154 words
A naphthalocyanine derivative according to claim 5, wherein the aryloxyl groups are selected from the group consisting of phenoxyl group, tolyloxyl group and anisyloxyl group; the alkoxyl groups are selected from the group consisting of amyloxyl group, hexyloxyl group, octyloxyl group, decyloxyl group, dodecyloxyl group, tetradecyloxyl group, hexadecyloxyl group, octadecyloxyl group, eicosyloxyl group and docosyloxyl group; the trialkylsiloxyl groups are selected from the group consisting of trimethylsiloxyl group, triethylsiloxyl group, tripropylsiloxyl group and tributylsiloxyl group; the triarylsiloxyl groups are selected from the group consisting of triphenylsiloxyl group, trianisylsiloxyl group and tritolylsiloxyl group; the trialkoxysiloxyl groups are selected from the group consisting of trimethoxysiloxyl group, triethoxysiloxyl group, tripropoxysiloxyl group and tributoxysiloxyl group; the triaryloxysiloxyl groups are selected from the group consisting of triphenoxysiloxyl group, trianisiloxysiloxyl group and tritolyloxysiloxyl group; and the acyloxyl groups are selected from the group consisting of acetyoxyl group, propionyloxyl group, butyryloxyl group, valeryloxyl group, pivaloyloxyl group, hexanoyloxyl group and octanoyloxyl group.
Claim 10
Dependent Claim
27 words
A naphthalocyanine derivative according to claim 1, wherein Y in the formula (I) is a trialkoxysiloxyl group, a triaryloxysiloxyl group, a trityloxyl group or an acyloxyl group.
Claim 11
Dependent Claim
17 words
A naphthalocyanine derivative according to claim 1, wherein Y in the formula (I) is a trialkoxysiloxyl group.
Claim 12
Dependent Claim
34 words
A naphthalocyanine derivative according to claim 1, wherein Y in the formula (I) is a trialkoxysiloxyl group, a triaryloxysiloxyl group, a trityloxyl group or an acyloxyl group; and R 1 is an alkyl group.
Claim 13
Dependent Claim
24 words
A naphthalocyanine derivative according to claim 1, wherein Y in the formula (I) is a trialkoxysiloxyl group; and R 1 is an alkyl group.
Claim 14
Dependent Claim
119 words
An optical recording medium comprising a substrate and a recording layer formed on a surface of the substrate, said recording layer comprising mainly a naphthalocyanine derivative represented by the formula: ##STR33## wherein k, l, m and n, which may be the same or different, are zero or integers of 1 to 4, k+l+m+n being an integer of 1 or more; R 1 's in a number of 4 (k+l+m+n), which may be the same or different, are alkyl groups, substituted alkyl groups, or aryl groups; M is Si, Ge or Sn; and two Y's, which may be the same or different, are aryloxyl groups, alkoxyl groups, trialkylsiloxyl groups, triarylsiloxyl groups, trialkoxysiloxyl groups, triaryloxysiloxyl groups, trityloxyl groups, or acyloxyl groups.
Claim 15
Dependent Claim
119 words
An optical recording medium comprising a substrate and a recording layer formed on a surface of the substrate, said recording layer comprising mainly a naphthalocyanine derivative represented by the formula: ##STR33## wherein k, l, m and n, which may be the same or different, are zero or integers of 1 to 4, k+l+m+n being an integer of 1 or more; R 1 's in a number of 4 (k+l+m+n), which may be the same or different, are alkyl groups, substituted alkyl groups, or aryl groups; M is Si, Ge or Sn; and two Y's, which may be the same or different, are aryloxyl groups, alkoxyl groups, trialkylsiloxyl groups, triarylsiloxyl groups, trialkoxysiloxyl groups, triaryloxysiloxyl groups, trityloxyl groups, or acyloxyl groups.
Claim 16
Dependent Claim
28 words
An optical recording medium according to claim 13, wherein the recording layer comprises mainly a naphthalocyanine derivative of the formula (I) in which M is Si or Ge.
Claim 17
Dependent Claim
33 words
An optical recording medium according to claim 13, wherein the recording layer is composed mainly of a naphthalocyanine derivative of the formula (I) in which k, l, m and n are all 1.
Claim 18
Dependent Claim
30 words
An optical recording medium according to claim 13, wherein the recording layer is composed mainly of a naphthalocyanine derivative of the formula (I) in which two Y's are trialkylsiloxyl groups.
Claim 19
Dependent Claim
38 words
An optical recording medium according to claim 13, wherein the recording layer is composed mainly of a naphthalocyanine derivative of the formula (I) in which all R 1 's are alkyl groups having 1 to 22 alkyl groups.
Claim 20
Dependent Claim
33 words
An optical recording medium according to claim 13, wherein the recording layer is composed mainly of a naphthalocyanine derivative of the formula (I) in which all R 1 's are substituted alkyl groups.
Claim 21
Dependent Claim
155 words
An optical recording medium according to claim 13, wherein the aryloxyl groups are selected from the group consisting of phenoxyl group, tolyloxyl group and anisyloxyl group; the alkoxyl groups are selected from the group consisting of amyloxyl group, hexyloxyl group, octyloxyl group, decyloxyl group, dodecyloxyl group, tetradecyloxyl group, hexadecyloxyl group, octadecyloxyl group, eicosyloxyl group and docosyloxyl group; the trialkylsiloxyl groups are selected from the group consisting of trimethylsiloxyl group, triethylsiloxyl group, tripropylsiloxyl group and tributylsiloxyl group; the triarylsiloxyl groups are selected from the group consisting of triphenylsiloxyl group, trianisylsiloxyl group and tritolylsiloxyl group; the trialkoxysiloxyl groups are selected from the group consisting of trimethoxysiloxyl group, triethoxysiloxyl group, tripropoxysiloxyl group and tributoxysiloxyl group; the triaryloxysiloxyl groups are selected from the group consisting of triphenoxysiloxyl group, trianisiloxysiloxyl group and tritolyloxysiloxyl group; and the acyloxyl groups are selected from the group consisting of acetyoxyl group, propionyloxyl group, butyryloxyl group, valeryloxyl group, pivaloyloxyl group, hexanoyloxyl group and octanoyloxyl group.
Claim 22
Dependent Claim
155 words
An optical recording medium according to claim 17, wherein the aryloxyl groups are selected from the group consisting of phenoxyl group, tolyloxyl group and anisyloxyl group; the alkoxyl groups are selected from the group consisting of amyloxyl group, hexyloxyl group, octyloxyl group, decyloxyl group, dodecyloxyl group, tetradecyloxyl group, hexadecyloxyl group, octadecyloxyl group, eicosyloxyl group and docosyloxyl group; the trialkylsiloxyl groups are selected from the group consisting of trimethylsiloxyl group, triethylsiloxyl group, tripropylsiloxyl group and tributylsiloxyl group; the triarylsiloxyl groups are selected from the group consisting of triphenylsiloxyl group, trianisylsiloxyl group and tritolylsiloxyl group; the trialkoxysiloxyl groups are selected from the group consisting of trimethoxysiloxyl group, triethoxysiloxyl group, tripropoxysiloxyl group and tributoxysiloxyl group; the triaryloxysiloxyl groups are selected from the group consisting of triphenoxysiloxyl group, trianisiloxysiloxyl group and tritolyloxysiloxyl group; and the acyloxyl groups are selected from the group consisting of acetyoxyl group, propionyloxyl group, butyryloxyl group, valeryloxyl group, pivaloyloxyl group, hexanoyloxyl group and octanoyloxyl group.
References Cited (Backward Citations)
CA456203A
Cited
US3094535A
Cited
US3094536A
Cited
US4622179A
Cited
EP0191215A2
Cited
EP0191970A1
Cited
US4725525A
Cited
US4798781A
Cited
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