US5106990A
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Indolenine derivatives as dyes
Assignee: Fujifilm Corp
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Filing: 1989-03-28
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Granted: 1992-04-21
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Expires: 2009-03-28
Abstract
Abstract The present invention relates to a dye represented by formula (I): ##STR1## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, each represents a C 1 -C 5 alkyl group or a C 1 -C 5 alkyl group having a substituent selected from the group consisting of a sulfonic group, carboxyl group and hydroxyl group, and Z 1 and Z 2 each represents a group of non-metallic atoms necessary for the formation of a benzo-condensed of naphtho-condensed ring, or a benzo-condensed or naphtho-condensed ring having a substituent selected from the group consisting of a sulfonic group, a carboxyl group, an hydroxyl group, a halogen atom, a cyano group, an amino group and a C 1 -C 5 alkyl group connected to the ring directly or through a divalent connection group, with a proviso that R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , Z 1 and Z 2 represent those groups which permit the dye molecule to have at least three acid radicals; L represents a methine group of a methine group having a substituent selected from the group consisting of a C 1 -C 5 alkyl group, a C 1 -C 5 alkyl group having a substituent selected from an hydroxyl group, a phenyl group, or a sulfo group, a halogen atom, a phenyl group, a 4-chlorophenyl group, and a C 1 -C 2 alkoxyl group; X represents an anion; and n represents 1 or 2, n being 1 when the dye forms an inner salt.
Inventors
- 👤 Shigeru Ohno
- 👤 Yuji Mihara
- 👤 Keiichi Adachi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:22
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83; G03C1/832
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
268 words
A dye represented by formula (I): ##STR16## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, each represents a C 1 -C 5 alkyl group or a C 1 -C 5 alkyl group having a substituent selected from the group consisting of a sulfonic group, carboxyl group and hydroxyl group, and Z 1 and Z 2 each represents a group of non-metallic atoms necessary for the formation of a benzo-condensed or naphtho-condensed ring, or a benzo-condensed or naphtho-condensed ring having a substituent selected from the group consisting of a sulfonic group, a carboxyl group, an hydroxyl group, a halogen atom, a cyano group, an amino group and a C 1 -C 5 alkyl group connected to the ring directly or through a divalent connection group, with a proviso that R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , Z 1 and Z 2 represent those groups which permit the dye molecule to have at least three acid radicals; L represents a methine group or a methine group having a substituent selected from the group consisting of a C 1 -C 5 alkyl group, a C 1 -C 5 alkyl group having a substituent selected from an hydroxyl group, a phenyl group, and a sulfo group, a halogen atom, a phenyl group, a 4-chlorophenyl group, and a C 1 -C 2 alkoxyl group; X represents an anion; and n represents 1 or 2, n being 1 when the dye forms an inner salt.
Claim 2
Dependent Claim
268 words
A dye represented by formula (I): ##STR16## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, each represents a C 1 -C 5 alkyl group or a C 1 -C 5 alkyl group having a substituent selected from the group consisting of a sulfonic group, carboxyl group and hydroxyl group, and Z 1 and Z 2 each represents a group of non-metallic atoms necessary for the formation of a benzo-condensed or naphtho-condensed ring, or a benzo-condensed or naphtho-condensed ring having a substituent selected from the group consisting of a sulfonic group, a carboxyl group, an hydroxyl group, a halogen atom, a cyano group, an amino group and a C 1 -C 5 alkyl group connected to the ring directly or through a divalent connection group, with a proviso that R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , Z 1 and Z 2 represent those groups which permit the dye molecule to have at least three acid radicals; L represents a methine group or a methine group having a substituent selected from the group consisting of a C 1 -C 5 alkyl group, a C 1 -C 5 alkyl group having a substituent selected from an hydroxyl group, a phenyl group, and a sulfo group, a halogen atom, a phenyl group, a 4-chlorophenyl group, and a C 1 -C 2 alkoxyl group; X represents an anion; and n represents 1 or 2, n being 1 when the dye forms an inner salt.
Claim 3
Dependent Claim
36 words
The dye as claimed in claim 1, wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 each represents an alkyl group containing 1 to 5 carbon atoms.
Claim 4
Dependent Claim
29 words
The dye as claimed in claim 1, wherein each R 1 and R 4 represents an alkyl group containing 1 to 5 carbon atoms and having a sulfonic group.
Claim 5
Dependent Claim
51 words
The dye as claimed in claim 1, wherein the acid radical as a substituent of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and Z 1 and Z 2 is selected from the group consisting of a sulfonic group and carboxylic group.
Claim 6
Dependent Claim
37 words
The dye as claimed in claim 1, wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , Z 1 and Z 2 have 4 to 6 sulfonic groups.
Claim 7
Dependent Claim
14 words
The dye as claimed in claim 1, wherein L represents an unsubstituted methine group.
Claim 8
Dependent Claim
25 words
The dye as claimed in claim 1, wherein the methine group represented by L has a C 1 -C 5 alkyl group as a substituent.
Claim 9
Dependent Claim
26 words
The dye as claimed in claim 1, wherein the amino group has a substituent selected from the group consisting of C 1 -C 4 alkyl groups.
Claim 10
Dependent Claim
32 words
The dye as claimed in claim 1, wherein the divalent connecting group is selected from the group consisting of --O--, --NHCO--, --NHSO 2 --, --NHCOO--, --NHCONH--, --COO--, --CO--, and --SO 2 --.
Claim 11
Dependent Claim
41 words
The dye as claimed in claim 1, wherein R 1 and R 4 are C 1 -C 5 alkyl groups having a sulfonic acid group selected from the group consisting of a 2-sulfoethyl group, a 3-sulfopropyl group, and a 4-sulfobutyl group.
Claim 12
Dependent Claim
21 words
The dye as claimed in claim 1, wherein the halogen atom is selected from the group consisting fluorine, chlorine and bromine.
Claim 13
Dependent Claim
31 words
The dye as claimed in claim 1, wherein the amino group is selected from the group consisting of a dimethylamino group, a diethylamino group, an ethyl-4-sulfobutylamino group, and a di(3-sulfopropyl)amino group.
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) | 1995-04-21 | 1995-10-21 | 1996-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-21 | 1999-10-21 | 2000-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-21 | 2003-10-21 | 2004-04-21 | $7700.00 | Window Closed / Lapsed |