Patent US5446141A successfully refreshed from Google Patents.
US5446141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylphthalocyanine near-infrared absorbers and recording/display materials using the same
Assignee: Yamamoto Chemicals Inc
•
Filing: 1992-09-17
•
Granted: 1995-08-29
•
Expires: 2012-09-17
Abstract
Abstract Near-infrared absorbers which contain phthalocyanine derivatives in which the four benzene rings contained in the molecule independently have 1 to 4 substituents are light and thermal resistant and possess high molar extinction coefficients. Such near-infrared absorbers are useful in optical recording media, near-infrared absorption filters, and liquid crystal display devices.
Inventors
- 👤 Hisato Itoh
- 👤 Katashi Enomoto
- 👤 Takahisa Oguchi
- 👤 Tsutomu Nishizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:48
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/242; G11B7/244; G11B7/246; G11B7/248; C; C09; C09B; C09B47/00; C09B47/04; C09B47/045; C09B47/06; C09B47/062; C09K; C09K19/00; C09K19/52; C09K19/60
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
145 words
A near-infrared absorber comprising a phthalocyanine derivative of formula (I): ##STR11## wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , and R 16 are independently alkyl, arylmethyl, alkoxymethyl, alkylthiomethyl, alkylaminomethyl, dialkylaminomethyl, aryloxymethyl, arylthiomethyl, arylaminomethyl, diarylaminomethyl, or alkylarylaminomethyl, wherein the total number of carbon, oxygen, nitrogen, and sulfur atoms present in each of R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 is in the range of 5 to 12; and Met is two hydrogen atoms, a divalent metal atom, a monosubstituted trivalent metal atom, a disubstituted tetravalent metal atom or an oxymetal group.
Claim 2
Dependent Claim
145 words
A near-infrared absorber comprising a phthalocyanine derivative of formula (I): ##STR11## wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , and R 16 are independently alkyl, arylmethyl, alkoxymethyl, alkylthiomethyl, alkylaminomethyl, dialkylaminomethyl, aryloxymethyl, arylthiomethyl, arylaminomethyl, diarylaminomethyl, or alkylarylaminomethyl, wherein the total number of carbon, oxygen, nitrogen, and sulfur atoms present in each of R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 is in the range of 5 to 12; and Met is two hydrogen atoms, a divalent metal atom, a monosubstituted trivalent metal atom, a disubstituted tetravalent metal atom or an oxymetal group.
Claim 3
Dependent Claim
53 words
The near-infrared absorber of claim 1, wherein the total number of carbon, oxygen, nitrogen and sulfur atoms present in each of R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 is in the range of 5 to 12.
Claim 4
Dependent Claim
164 words
A near infrared absorber comprising a phthalocyanine derivative of formula (I): ##STR12## wherein the pairs of R 1 and R 4 , R 5 and R 8 , R 9 and R 12 , and R 13 and R 16 , one of each pair is alkylthiomethyl, arylthiomethyl, arylaminomethyl, diarylaminomethyl or alkylarylaminomethyl, and the other is alkyl, arylmethyl, alkyloxymethyl, aryloxymethyl, alkylthiomethyl, arylthiomethyl, arylaminomethyl, diarylaminomethyl, or alkylarylaminomethyl, wherein the total number of carbon, oxygen, nitrogen and sulfur atoms present in each of R 1 , R 4 , R 5 , R 8 , R 9 , R 2 , R 13 , and R 16 is in the range of 5 to 12; R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 are hydrogen atoms; and Met is two hydrogen atoms, a divalent metal atom, a monosubstituted trivalent metal atom, a disubstituted tetravalent metal atom or an oxymetal group.
Claim 5
Dependent Claim
164 words
A near infrared absorber comprising a phthalocyanine derivative of formula (I): ##STR12## wherein the pairs of R 1 and R 4 , R 5 and R 8 , R 9 and R 12 , and R 13 and R 16 , one of each pair is alkylthiomethyl, arylthiomethyl, arylaminomethyl, diarylaminomethyl or alkylarylaminomethyl, and the other is alkyl, arylmethyl, alkyloxymethyl, aryloxymethyl, alkylthiomethyl, arylthiomethyl, arylaminomethyl, diarylaminomethyl, or alkylarylaminomethyl, wherein the total number of carbon, oxygen, nitrogen and sulfur atoms present in each of R 1 , R 4 , R 5 , R 8 , R 9 , R 2 , R 13 , and R 16 is in the range of 5 to 12; R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 are hydrogen atoms; and Met is two hydrogen atoms, a divalent metal atom, a monosubstituted trivalent metal atom, a disubstituted tetravalent metal atom or an oxymetal group.
Claim 6
Dependent Claim
152 words
A near-infrared absorber comprising a phthalocyanine derivative of formula (I): ##STR13## wherein R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 independently are alkyl, arylmethyl, alkoxymethyl;, alkylthiomethyl, alkylaminomethyl, dialkylaminomethyl, aryloxymethyl, arylthiomethyl, arylaminomethyl, diarylaminomethyl, or alkylarylaminomethyl, wherein the total number of carbon, oxygen, nitrogen and sulfur atoms present in each R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 is in the range of 5 to 12; R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 independently are halogen alkylthio, arylthio, alkoxy, aryloxy or aryl; Met is two hydrogen atoms, a divalent metal atom, a monosubstituted trivalent metal atom, a disubstituted tetravalent metal atom or an oxymetal group.
Claim 7
Dependent Claim
152 words
A near-infrared absorber comprising a phthalocyanine derivative of formula (I): ##STR13## wherein R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 independently are alkyl, arylmethyl, alkoxymethyl;, alkylthiomethyl, alkylaminomethyl, dialkylaminomethyl, aryloxymethyl, arylthiomethyl, arylaminomethyl, diarylaminomethyl, or alkylarylaminomethyl, wherein the total number of carbon, oxygen, nitrogen and sulfur atoms present in each R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 is in the range of 5 to 12; R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 independently are halogen alkylthio, arylthio, alkoxy, aryloxy or aryl; Met is two hydrogen atoms, a divalent metal atom, a monosubstituted trivalent metal atom, a disubstituted tetravalent metal atom or an oxymetal group.
Claim 8
Dependent Claim
139 words
A near-infrared absorber comprising the phthalocyanine derivative of formula (I): ##STR14## wherein R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 independently are branched alkyl or branched alkoxymethyl, wherein the total number of carbon and oxygen atoms present in each of R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 is in the range of 5 to 12; R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 are hydrogen atoms; and Met is two hydrogen atoms, a divalent metal atom, a monosubstituted trivalent metal atom, a disubstituted tetravalent metal atom or an oxymetal group.
Claim 9
Dependent Claim
139 words
A near-infrared absorber comprising the phthalocyanine derivative of formula (I): ##STR14## wherein R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 independently are branched alkyl or branched alkoxymethyl, wherein the total number of carbon and oxygen atoms present in each of R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 is in the range of 5 to 12; R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 are hydrogen atoms; and Met is two hydrogen atoms, a divalent metal atom, a monosubstituted trivalent metal atom, a disubstituted tetravalent metal atom or an oxymetal group.
Claim 10
Dependent Claim
131 words
A near-infrared absorber comprising a phthalocyanine derivative of formula (I): ##STR15## wherein R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 independently are alkyl, arylmethyl or alkoxymethyl, wherein the total number of carbon and oxygen atoms present in each of R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 is in the range of 5 to 12; R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 are hydrogen atoms; and Met is a monosubstituted trivalent metal atom, a disubstituted tetravalent metal atom or an oxymetal group.
Claim 11
Dependent Claim
131 words
A near-infrared absorber comprising a phthalocyanine derivative of formula (I): ##STR15## wherein R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 independently are alkyl, arylmethyl or alkoxymethyl, wherein the total number of carbon and oxygen atoms present in each of R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 is in the range of 5 to 12; R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 are hydrogen atoms; and Met is a monosubstituted trivalent metal atom, a disubstituted tetravalent metal atom or an oxymetal group.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-08-28 | 1999-02-27 | 1999-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-28 | 2003-02-27 | 2003-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-28 | 2007-02-27 | 2007-08-29 | $7700.00 | Window Closed / Lapsed |