US4725525A
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Recording information media comprising chromophores
Assignee: ALABAMA UNIVERSITY OF BOARD OF TRUSTEES OF
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Filing: 1986-07-07
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Granted: 1988-02-16
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Expires: 2006-07-07
Abstract
Abstract Provided is an information recording medium and a method for recording information thereon. The information layer of the recording medium comprises a naphthalocyanine chromophore, e.g., a sulfonamidonaphthalocyanine having silicon or germanium as the central hetero atom. Information can thereby be readily recorded via a thermal deformation technique due to the effective absorption by the dye of light in the wavelength range of about 760-850 nm. The naphthalocyanine chromophores exhibit excellent chemical and photolytic stability, their use thereby increasing the useful life of the recording medium. Provided herein are also novel naphthalocyanine chromophore compounds which are useful in optical recording media, and which exhibit exceptional solubility characteristics. Such chromophores are thereby readily applied as a film in the formulation of an information recording medium.
Inventors
- 👤 Malcolm E. Kenney
- 👤 R. Sidney Jones, Jr.
- 👤 James E. Kuder
- 👤 David E. Nikles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:55
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/242; G11B7/244; G11B7/246; G11B7/248; Y; Y10; Y10S; Y10S430/00; Y10S430/146; Y10S430/165
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
47 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore, wherein the chromophore comprises bis-tri-n-hexylsiloxysilicon naphthalocyanine.
Claim 2
Dependent Claim
47 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore, wherein the chromophore comprises bis-tri-n-hexylsiloxysilicon naphthalocyanine.
Claim 3
Dependent Claim
47 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore, wherein the chromophore comprises dichlorosilicon poly-di-n-octylsulfonamidonaphthalocyanine.
Claim 4
Dependent Claim
47 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore, wherein the chromophore comprises dichlorosilicon poly-di-n-octylsulfonamidonaphthalocyanine.
Claim 5
Dependent Claim
47 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore, wherein the chromophore comprises dihydroxysilicon poly-di-n-octylsulfonamidonaphthalocyanine.
Claim 6
Dependent Claim
47 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore, wherein the chromophore comprises dihydroxysilicon poly-di-n-octylsulfonamidonaphthalocyanine.
Claim 7
Dependent Claim
47 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore, wherein the chromophore comprises bis-tri-n-hexylsiloxysilicon poly-di-n-octylsulfonamidonaphthalo-cynanine.
Claim 8
Dependent Claim
47 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore, wherein the chromophore comprises bis-tri-n-hexylsiloxysilicon poly-di-n-octylsulfonamidonaphthalo-cynanine.
Claim 9
Dependent Claim
351 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore of the structural formula: ##STR3## wherein Y is Si; Z is halogen, hydroxy, OR 1 or OSiR 2 R 3 R 4 , wherein R 1 is an alkyl having at least four carbons; aryl having at least 6 carbons; acyl having at least 4 carbons; cycloalkyl having at least four carbons; or a polyether, and wherein R 2 , R 3 and R 4 can be the same or different and are alkyl having from 1 to about 8 carbons; aryl having from 6 to 10 carbons; cycloalkyl having at least 4 carbons; siloxy; or alkoxy having at least 3 carbons; with p representing the number of z substituents and being either 0, 1 or 2; and wherein the X substituents can be the same or different and are independently selected from halogen; alkyl having at least 4 carbons; aryl having from 6 to 10 carbons; acyl having at least 4 carbons; NR 5 R 6 ; NO 2 ; OR 7 ; SO 3 ; or SO 2 NR 5 R 6 , with R 5 and R 6 being the same or different and being H; alkyl having from one to about 18 carbons; cycloalkyl having at least 4 carbons; aryl having from 6 to 10 carbons; or with R 5 and R 6 being taken together to form a heterocyclic ring containing the N atom and containing from 4 to 7 members, and where the x substituent is attached to the aromatic ring through the N atom when the substituent is NR 5 R 6 , R 7 is the same as R 1 defined above, and with n and m indicating the number of independently selected X substituents, each n being the same or different and ranging from 0 to 4, and each m being the same or different and ranging from 0 to 2.
Claim 10
Dependent Claim
351 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore of the structural formula: ##STR3## wherein Y is Si; Z is halogen, hydroxy, OR 1 or OSiR 2 R 3 R 4 , wherein R 1 is an alkyl having at least four carbons; aryl having at least 6 carbons; acyl having at least 4 carbons; cycloalkyl having at least four carbons; or a polyether, and wherein R 2 , R 3 and R 4 can be the same or different and are alkyl having from 1 to about 8 carbons; aryl having from 6 to 10 carbons; cycloalkyl having at least 4 carbons; siloxy; or alkoxy having at least 3 carbons; with p representing the number of z substituents and being either 0, 1 or 2; and wherein the X substituents can be the same or different and are independently selected from halogen; alkyl having at least 4 carbons; aryl having from 6 to 10 carbons; acyl having at least 4 carbons; NR 5 R 6 ; NO 2 ; OR 7 ; SO 3 ; or SO 2 NR 5 R 6 , with R 5 and R 6 being the same or different and being H; alkyl having from one to about 18 carbons; cycloalkyl having at least 4 carbons; aryl having from 6 to 10 carbons; or with R 5 and R 6 being taken together to form a heterocyclic ring containing the N atom and containing from 4 to 7 members, and where the x substituent is attached to the aromatic ring through the N atom when the substituent is NR 5 R 6 , R 7 is the same as R 1 defined above, and with n and m indicating the number of independently selected X substituents, each n being the same or different and ranging from 0 to 4, and each m being the same or different and ranging from 0 to 2.
Claim 11
Dependent Claim
10 words
The recording medium of claim 5, wherein p is 2.
Claim 12
Dependent Claim
358 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore of the structural formula: ##STR4## wherein Y is Si, Ge, Sn, Al, Ga, In or a transition metal; Z is OR 1 or OSiR 2 R 3 R 4 , wherein R 1 is an alkyl having at least four carbons; aryl having at least 6 carbons; acyl having at least 4 carbons; cycloalkyl having at least four carbons; or a polyether, and wherein R 2 , R 3 and R 4 can be the same or different and are alkyl having from 1 to about 18 carbons; aryl having from 6 to 10 carbons; cycloalkyl having at least 4 carbons; siloxy; or alkoxy having at least 3 carbons; with p representing the number of Z substituents and being either 1 or 2; and wherein the X substutuenst can be the same or different and are independently selected from halogen; alkyl having at leaat 4 carbons; aryl having from 6 to 10 carbons; acyl having at least 4 carbons; NR 5 R 6 ; NO 2 ; OR 7 ; SO 3 ; or SO 2 NR 5 R 6 , with R 5 and R 6 being the same or different and being H; alkyl having from one to a bout 18 carbons; cycloalkyl having at least 4 carbons; aryl having from 6 to 10 carbons; or with R 5 and R 6 being taken together to form a heterocyclic ring containing the N atom and containing from 4 to 7 members, and where the X substituent is attached to the aromatic ring through the N atom when the substituent is NR 5 R 6 , R 7 is the same as R 1 defined above, and with n and m indicating the number of independently selected X substituents, each n being the same or different and ranging from 0 to 4, and each m being the same or different and ranging from 0 to 2.
Claim 13
Dependent Claim
358 words
In a recording medium having a layer for the optical recordation of information and for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a film forming polymer and a chromophore of the structural formula: ##STR4## wherein Y is Si, Ge, Sn, Al, Ga, In or a transition metal; Z is OR 1 or OSiR 2 R 3 R 4 , wherein R 1 is an alkyl having at least four carbons; aryl having at least 6 carbons; acyl having at least 4 carbons; cycloalkyl having at least four carbons; or a polyether, and wherein R 2 , R 3 and R 4 can be the same or different and are alkyl having from 1 to about 18 carbons; aryl having from 6 to 10 carbons; cycloalkyl having at least 4 carbons; siloxy; or alkoxy having at least 3 carbons; with p representing the number of Z substituents and being either 1 or 2; and wherein the X substutuenst can be the same or different and are independently selected from halogen; alkyl having at leaat 4 carbons; aryl having from 6 to 10 carbons; acyl having at least 4 carbons; NR 5 R 6 ; NO 2 ; OR 7 ; SO 3 ; or SO 2 NR 5 R 6 , with R 5 and R 6 being the same or different and being H; alkyl having from one to a bout 18 carbons; cycloalkyl having at least 4 carbons; aryl having from 6 to 10 carbons; or with R 5 and R 6 being taken together to form a heterocyclic ring containing the N atom and containing from 4 to 7 members, and where the X substituent is attached to the aromatic ring through the N atom when the substituent is NR 5 R 6 , R 7 is the same as R 1 defined above, and with n and m indicating the number of independently selected X substituents, each n being the same or different and ranging from 0 to 4, and each m being the same or different and ranging from 0 to 2.
Claim 14
Dependent Claim
10 words
The recording medium of claim 7, wherein p is 2.
Claim 15
Dependent Claim
44 words
In a recording medium having a substrate and a layer for the optical recordation of information, for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore, wherein the chromophore comprises bis-tri-n-hexylsiloxysilicon naphthalocyanine.
Claim 16
Dependent Claim
44 words
In a recording medium having a substrate and a layer for the optical recordation of information, for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore, wherein the chromophore comprises bis-tri-n-hexylsiloxysilicon naphthalocyanine.
Claim 17
Dependent Claim
48 words
In a recording medium having a substrate and a layer for the optical recordation of information, the information layer being for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore, wherein the chromophore comprises dichlorosilicon poly-di-n-octylsulfonamidonaphthalocyanine.
Claim 18
Dependent Claim
48 words
In a recording medium having a substrate and a layer for the optical recordation of information, the information layer being for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore, wherein the chromophore comprises dichlorosilicon poly-di-n-octylsulfonamidonaphthalocyanine.
Claim 19
Dependent Claim
48 words
In a recording medium having a substrate and a layer for the optical recordation of information, the information layer being for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore, wherein the chromophore comprises dihydroxysilicon poly-di-n-octylsulfonamidonaphthalocyanine.
Claim 20
Dependent Claim
48 words
In a recording medium having a substrate and a layer for the optical recordation of information, the information layer being for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore, wherein the chromophore comprises dihydroxysilicon poly-di-n-octylsulfonamidonaphthalocyanine.
Claim 21
Dependent Claim
48 words
In a recordng medium having a substrate and a layer for the optical recordation of information, the information layer being for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore, wherein the chromophore comprises bis-tri-n-hexylsiloxysilicon poly-di-n-octylsulfonamidonaphthalocyanine.
Claim 22
Dependent Claim
48 words
In a recordng medium having a substrate and a layer for the optical recordation of information, the information layer being for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore, wherein the chromophore comprises bis-tri-n-hexylsiloxysilicon poly-di-n-octylsulfonamidonaphthalocyanine.
Claim 23
Dependent Claim
340 words
In a recording medium having a substrate and a layer for the optical recordation of information, the information layer being for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore of the structural formula; ##STR5## wherein Y is Si; Z is halogen, hydroxy, OR 1 or OSiR 2 R 3 R 4 , aryl having at least 6 carbons; acyl having at least 4 carbons; cycloalkyl having at least four carbons; or a polyether, and wherein R 2 , R 3 and R 4 can be the same or different and are alkyl having from 1 to about 18 carbons; aryl having from 6 to 10 carbons; cycloalkyl having at least 4 carbons; siloxy; or alkoxy having at least 3 carbons; with p representing the number of Z substituents and being either 0, 1 or 2; and wherein the X substituents can be the same or different and are independently selected from halogen; alkyl having at least 4 carbons; aryl having from 6 to 10 carbons; acyl having at least 4 carbons; NR 5 R 6 ; NO 2 ; OR 7 ; SO 3 ; or SO 2 NR 5 R 6 , with R 5 and R 6 being the same or different and being H; alkyl having from one to about 18 carbons; cycloalkyl having at least 4 carbons; aryl having from 6 to 10 carbons; or with R 5 and R 6 being taken together to form a heterocyclic ring containing the N atom and containing from 4 to 7 members, and where the X substituent is attached to the aromatic ring through the N atom when the substituent is NR 5 R 6 , R 7 is the same as R 1 defined above, with n and m indicating the number of independently selected X substituents, each n being the same or different and ranging from 0 to 4, and each m being the same or different and ranging from 0 to 2.
Claim 24
Dependent Claim
340 words
In a recording medium having a substrate and a layer for the optical recordation of information, the information layer being for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore of the structural formula; ##STR5## wherein Y is Si; Z is halogen, hydroxy, OR 1 or OSiR 2 R 3 R 4 , aryl having at least 6 carbons; acyl having at least 4 carbons; cycloalkyl having at least four carbons; or a polyether, and wherein R 2 , R 3 and R 4 can be the same or different and are alkyl having from 1 to about 18 carbons; aryl having from 6 to 10 carbons; cycloalkyl having at least 4 carbons; siloxy; or alkoxy having at least 3 carbons; with p representing the number of Z substituents and being either 0, 1 or 2; and wherein the X substituents can be the same or different and are independently selected from halogen; alkyl having at least 4 carbons; aryl having from 6 to 10 carbons; acyl having at least 4 carbons; NR 5 R 6 ; NO 2 ; OR 7 ; SO 3 ; or SO 2 NR 5 R 6 , with R 5 and R 6 being the same or different and being H; alkyl having from one to about 18 carbons; cycloalkyl having at least 4 carbons; aryl having from 6 to 10 carbons; or with R 5 and R 6 being taken together to form a heterocyclic ring containing the N atom and containing from 4 to 7 members, and where the X substituent is attached to the aromatic ring through the N atom when the substituent is NR 5 R 6 , R 7 is the same as R 1 defined above, with n and m indicating the number of independently selected X substituents, each n being the same or different and ranging from 0 to 4, and each m being the same or different and ranging from 0 to 2.
Claim 25
Dependent Claim
10 words
The recording medium of claim 13, wherein p is 2.
Claim 26
Dependent Claim
357 words
In a recording medium having a substrate and a layer for the optical recordation of information, the information layer being for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore of the structural formula: ##STR6## wherein Y is Si, Ge, Sn, Al, Ga, In or a transition metal; Z is OR 1 or OSiR 2 R 3 R 4 , wherein R 1 is an alkyl having at least four carbons; aryl having at least 6 carbons; acyl having at least 4 carbons; cycloalkyl having at least four carbons, or a polyether, and wherein R 2 , R 3 and R 4 can be the same or different and are alkyl having from 1 to about 18 carbons; aryl having from 6 to 10 carbons; cycloalkyl having at least 4 carbons; siloxy; or alkoxy having at least 3 carbons; with p representing the number of Z substituents and being either 1 or 2; and wherein the X substituents can be the same or different and are independently selected from halogen; alkyl having at least 4 carbons; aryl having from 6 to 10 carbons; acyl having at least 4 carbons; NR 5 R 6 ; NO 2 ; OR 7 ; SO 3 ; SO 2 NR 5 R 6 , with R 5 and R 6 being the same or different and being H; alkyl having from one to about 18 carbons; cycloalkyl having at least 4 carbons; aryl having from 6 to 10 carbons; or with R 5 and R 6 being taken together to form a heterocyclic ring containing the N atom and containing from 4 to 7 members, and where the X substituent is attached to the aromatic ring through the N atom when the substituent is NR 5 R 6 , R 7 is the same as R 1 defined above, and with n and m indicating the number of independently selected X substituents, each n being the same or different and ranging from 0 to 4, and each m being the same of different and ranging from 0 to 2.
Claim 27
Dependent Claim
357 words
In a recording medium having a substrate and a layer for the optical recordation of information, the information layer being for use with a recording laser providing light of a predetermined frequency, the improvement which comprises said information layer comprising a chromophore of the structural formula: ##STR6## wherein Y is Si, Ge, Sn, Al, Ga, In or a transition metal; Z is OR 1 or OSiR 2 R 3 R 4 , wherein R 1 is an alkyl having at least four carbons; aryl having at least 6 carbons; acyl having at least 4 carbons; cycloalkyl having at least four carbons, or a polyether, and wherein R 2 , R 3 and R 4 can be the same or different and are alkyl having from 1 to about 18 carbons; aryl having from 6 to 10 carbons; cycloalkyl having at least 4 carbons; siloxy; or alkoxy having at least 3 carbons; with p representing the number of Z substituents and being either 1 or 2; and wherein the X substituents can be the same or different and are independently selected from halogen; alkyl having at least 4 carbons; aryl having from 6 to 10 carbons; acyl having at least 4 carbons; NR 5 R 6 ; NO 2 ; OR 7 ; SO 3 ; SO 2 NR 5 R 6 , with R 5 and R 6 being the same or different and being H; alkyl having from one to about 18 carbons; cycloalkyl having at least 4 carbons; aryl having from 6 to 10 carbons; or with R 5 and R 6 being taken together to form a heterocyclic ring containing the N atom and containing from 4 to 7 members, and where the X substituent is attached to the aromatic ring through the N atom when the substituent is NR 5 R 6 , R 7 is the same as R 1 defined above, and with n and m indicating the number of independently selected X substituents, each n being the same or different and ranging from 0 to 4, and each m being the same of different and ranging from 0 to 2.
Claim 28
Dependent Claim
10 words
The recording medium of claim 15, wherein p is 2.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |