Patent US3953216A successfully refreshed from Google Patents.
US3953216A
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Spectrally sensitized silver halide photographic emulsion
Assignee: Fujifilm Holdings Corp
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Filing: 1974-08-16
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Granted: 1976-04-27
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Expires: 1994-08-16
Abstract
Abstract A spectral-sensitized silver halide photographic emulsion containing in supersensitizing amounts the combination of 1. at least one sensitizing dye represented by the formula ##EQU1## WHEREIN Z 1 and Z 2 are the atomic groups necessary for forming a benzoxazole ring or a napthoxazole ring, in which a benzene nucleus of the ring may be substituted; R 1 and R 2 are aliphatic groups and at least one of R 1 or R 2 is a carboxyalkyl group or a sulfoalkyl group; R 3 is a hydrogen atom or an alkyl group; X is an acid anion group; and m is 1 or 2 and m is 1 when the dye forms an intramolecular salt having a betaine like-structure, 2. at least one sensitizing dye represented by the formula (II) ##EQU2## wherein Z 3 is an atomic group necessary for forming a 5-membered or 6-membered heterocyclic ring which may be substituted by substituents other than R 4 ; Z 4 is an atomic group necessary for forming a 2-pyrazoline-5-one ring nucleus which may be substituted; R 4 is an aliphatic group; R 5 is a hydrogen atom, an alkyl group, or an aryl group; and n is 1 or 2.
Inventors
- 👤 Masanao Hinata
- 👤 Haruo Takei
- 👤 Akira Sato
- 👤 Akira Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:14
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/28; G03C1/29
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
16 words
A silver halide photographic emulsion having high green sensitivity containing in supersensitizing amounts the combination of
Claim 2
Dependent Claim
16 words
A silver halide photographic emulsion having high green sensitivity containing in supersensitizing amounts the combination of
Claim 3
Dependent Claim
104 words
at least one sensitizing dye represented by the formula (I) ##EQU5## wherein Z 1 and Z 2 are the atomic groups necessary for forming a benzoxazole ring or a naphthoxazole ring, in which a benzene nucleus of the ring may be substituted; R 1 and R 2 are aliphatic groups and at least one of R 1 and R 2 is a carboxyalkyl group or a sulfoalkyl group; R 3 is a hydrogen atom or an alkyl group; X is an acid anion; and m is 1 or 2 and m is 1 when the dye forms an intramolecular betaine like salt, and 2.
Claim 4
Dependent Claim
104 words
at least one sensitizing dye represented by the formula (I) ##EQU5## wherein Z 1 and Z 2 are the atomic groups necessary for forming a benzoxazole ring or a naphthoxazole ring, in which a benzene nucleus of the ring may be substituted; R 1 and R 2 are aliphatic groups and at least one of R 1 and R 2 is a carboxyalkyl group or a sulfoalkyl group; R 3 is a hydrogen atom or an alkyl group; X is an acid anion; and m is 1 or 2 and m is 1 when the dye forms an intramolecular betaine like salt, and 2.
Claim 5
Dependent Claim
221 words
at least one sensitizing dye represented by the formula (II) ##EQU6## wherein Z 3 is an atomic group necessary for forming a 5-membered or 6-membered heterocyclic ring selected from the group consisting of a pyridine ring, a quinoline ring, an oxazoline ring, an oxazole ring, a thiazoline ring, a thiazole ring, a selenazole ring, a benzoxazole ring, a benzothiazole ring, a benzoselenazole ring, a benzimidazole ring, a dialkylindolenine ring, a α-naphthoxazole ring, a β-naphthoxazole ring, a β,β-naphthoxazole ring, a α-naphthothiazole ring, a β-naphthothiazole ring, a β ,β-naphthothiazole ring, a α-naphthoselenazole ring, a tetrazole ring and a pyrroline ring, which may be substituted with one or more of a halogen atom, an alkyl group, an alkoxy group, an alkoxycarbonyl group, and an aryl group as described for Z 1 and Z 2 in addition to R 4 ; Z 4 is an atomic group necessary for forming a 2-pyrazoline-5-one ring nucleus which may be substituted with a member selected from the group consisting of an alkyl group, an alkoxy group, an alkoxycarbonyl group, an aryl group, an alkoxyalkyl group, an N-(N,N-dialkylaminoalkyl)carbamoylalkyl group, an N-(N,N,N-trialkylammoniumalkyl)carbamoylalkyl group, an N,N,N-trialkylammoniumalkyl group, a hydroxyalkyl group, a carboxyalkyl group, a sulfoalkyl group, and an amino group; R 4 is an aliphatic group; R 5 is a hydrogen atom, an alkyl group, or an aryl group; and n
Claim 6
Dependent Claim
221 words
at least one sensitizing dye represented by the formula (II) ##EQU6## wherein Z 3 is an atomic group necessary for forming a 5-membered or 6-membered heterocyclic ring selected from the group consisting of a pyridine ring, a quinoline ring, an oxazoline ring, an oxazole ring, a thiazoline ring, a thiazole ring, a selenazole ring, a benzoxazole ring, a benzothiazole ring, a benzoselenazole ring, a benzimidazole ring, a dialkylindolenine ring, a α-naphthoxazole ring, a β-naphthoxazole ring, a β,β-naphthoxazole ring, a α-naphthothiazole ring, a β-naphthothiazole ring, a β ,β-naphthothiazole ring, a α-naphthoselenazole ring, a tetrazole ring and a pyrroline ring, which may be substituted with one or more of a halogen atom, an alkyl group, an alkoxy group, an alkoxycarbonyl group, and an aryl group as described for Z 1 and Z 2 in addition to R 4 ; Z 4 is an atomic group necessary for forming a 2-pyrazoline-5-one ring nucleus which may be substituted with a member selected from the group consisting of an alkyl group, an alkoxy group, an alkoxycarbonyl group, an aryl group, an alkoxyalkyl group, an N-(N,N-dialkylaminoalkyl)carbamoylalkyl group, an N-(N,N,N-trialkylammoniumalkyl)carbamoylalkyl group, an N,N,N-trialkylammoniumalkyl group, a hydroxyalkyl group, a carboxyalkyl group, a sulfoalkyl group, and an amino group; R 4 is an aliphatic group; R 5 is a hydrogen atom, an alkyl group, or an aryl group; and n
Claim 7
Dependent Claim
67 words
is 1 or 2. 2. The silver halide photographic emulsion according to claim 1, wherein the ring formed by Z 1 or Z 2 is a benzoxazole ring substituted with a chlorine atom, a bromine atom, a phenyl group, or a methoxy group at 5-position thereof; R 1 and R 2 each is a sulfoalkyl group or a carboxyalkyl group; and R 3 is an ethyl group.
Claim 8
Dependent Claim
43 words
The silver halide photographic emulsion according to claim 1, wherein the heterocyclic ring formed by Z 3 is a benzoxazole ring, a thiazoline ring, a benzothiazole ring, a β-naphthothiazole ring, an α-naphthothiazole ring, a benzimidazole ring, a pyrrole ring, or a dimethylindolenine ring.
Claim 9
Dependent Claim
16 words
The silver halide photographic emulsion according to claim 1, wherein R 4 is a sulfoalkyl group.
Claim 10
Dependent Claim
23 words
The silver halide photographic emulsion according to claim 1, wherein R 5 is a methyl group, an ethyl group, or a phenyl group.
Claim 11
Dependent Claim
30 words
The silver halide photographic emulsion according to claim 1, wherein the hetero ring formed by Z.sub. 4 is a pyrazoline-5-one ring substituted with a carboxyphenyl group or a sulfophenyl group.
Claim 12
Dependent Claim
32 words
The silver halide photographic emulsion according to claim 1, wherein the dye represented by the formula (I) contains at least one 5-position chlorine substituted benzoxazole nucleus as the nitrogen containing heterocyclic ring.
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) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |