US4397943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1982-06-22
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Granted: 1983-08-09
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Expires: 2002-06-22
Abstract
Abstract A silver halide photographic light-sensitive material containing in at least one of its constituent layers a polymerized stabilizer which comprises repeating units having an 1,2,4-triazolo[1,5-a]pyrimidine moiety. The stabilizer does not inhibit the sensitivity of the material and greatly enhances its storability.
Inventors
- 👤 Shoji Ishiguro
- 👤 Yoshiharu Fuseya
- 👤 Tatsuo Heki
- 👤 Akio Mitsui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:23
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053; Y; Y10; Y10S; Y10S430/00; Y10S430/162
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
41 words
A silver halide photographic light-sensitive material, comprising: a support base; a silver halide emulsion layer; and a polymer containing repeating units having a 1,2,4-triazolo[1,5-a]pyrimidine moiety, the polymer having a molecular weight in the range of 5×10 3 to 3×10 6 .
Claim 2
Dependent Claim
41 words
A silver halide photographic light-sensitive material, comprising: a support base; a silver halide emulsion layer; and a polymer containing repeating units having a 1,2,4-triazolo[1,5-a]pyrimidine moiety, the polymer having a molecular weight in the range of 5×10 3 to 3×10 6 .
Claim 3
Dependent Claim
29 words
A silver halide photographic light-sensitive material as claimed in claim 1, wherein the molecular weight of the polymer is in the range of 1×10 4 to 1×10 6 .
Claim 4
Dependent Claim
52 words
A silver halide photographic light-sensitive material as claimed in any of claims 1 or 2, wherein the repeating units of the polymer are represented by the general formula: ##STR41## wherein R 1 is hydrogen or a lower alkyl group; L is a divalent bonding group; and Y is a monovalent 1,2,4-triazolo[1,5-a]pyrimidine moiety.
Claim 5
Dependent Claim
125 words
A silver halide photographic light-sensitive material as claimed in claim 3, wherein the 1,2,4-triazolo[1,5-a]pyrimidine moiety is selected from a group consisting of those having the following general formulae (X-I), (X-II) and (X-III). ##STR42## wherein R 3 , R 4 , R 5 and R 6 may be the same or different and each represents hydrogen, an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, a substituted amino group, an unsubstituted or substituted carbamoyl group, a hydroxy group, an --OM group (wherein M represents an alkali metal ion or an ammonium ion), a cyano group, a halogen atom, an alkoxy group, an alkoxycarbonyl group, and an alkylthio group, or R 4 and R 5 may combine with each other and form a ring.
Claim 6
Dependent Claim
52 words
A silver halide photographic light-sensitive material as claimed in claim 3, wherein L is selected from a group consisting of those having the following general formulae (L-I) and (L-II): ##STR43## wherein Q represents --O-- or ##STR44## wherein R 2 represents hydrogen or a lower alkyl group), and Z represents an alkylene group.
Claim 7
Dependent Claim
23 words
A silver halide photographic light-sensitive material as claimed in claim 4, wherein the 1,2,4-triazolo[1,5-a]pyrimidine moiety is selected from a group consisting of ##STR45##
Claim 8
Dependent Claim
68 words
A silver halide photographic light-sensitive material as claimed in claim 5, wherein L is selected from a group consisting of --CONHCH 2 --, --CONHCH 2 CH 2 --, --CONHCH 2 OCOCH 2 --, --CONHCH 2 CH 2 CH 2 OCOCH 2 --, --COOCH 2 --, --COOCH 2 CH 2 --, --COOCH 2 CH 2 OCOCH 2 --, --COOCH 2 CH 2 CH 2 OCOCH 2 --, and ##STR46##
Claim 9
Dependent Claim
33 words
A silver halide photographic light-sensitive material as claimed in claim 3, wherein the polymer is present in an amount of 10 -8 to 10 -3 moles per 1 m 2 of the support.
Claim 10
Dependent Claim
33 words
A silver halide photographic light-sensitive material as claimed in claim 8, wherein the polymer is present in an amount of 10 -7 to 5×10 -4 moles per 1 m 2 of the support.
Claim 11
Dependent Claim
33 words
A silver halide photographic light-sensitive material as claimed in claim 3, wherein the polymer is present in an amount of 0.02 mg to about 2 g per 1 m 2 of the support.
Claim 12
Dependent Claim
33 words
A silver halide photographic light-sensitive material as claimed in claim 10, wherein the polymer is present in an amount of 0.2 mg to about 1 g per 1 m 2 of the support.
Claim 13
Dependent Claim
33 words
A silver halide photographic light-sensitive material as claimed in claim 3, wherein the polymer is present in an amount of about 60 mg to about 200 g per 1 mole of silver halide.
Claim 14
Dependent Claim
33 words
A silver halide photographic light-sensitive material as claimed in claim 12, wherein the polymer is present in an amount of about 300 mg to about 100 g per 1 mole of silver halide.
Claim 15
Dependent Claim
49 words
A silver halide photographic light-sensitive material as claimed in claim 1, wherein the polymers are homopolymers of unsaturated monomers represented by the following general formula ##STR47## wherein R 1 represents hydrogen or a lower alkyl group, L represents a divalent bonding group, and X represents a monovalent 1,2,4-triazolo[1,5-a]pyrimidine moiety.
Claim 16
Dependent Claim
79 words
A silver halide photographic light-sensitive material as claimed in claim 1, wherein the polymers are copolymers of unsaturated monomers represented by the following formula ##STR48## wherein R 1 represents hydrogen or a lower alkyl group, L represents a divalent bonding group, and X represents a monovalent 1,2,4-triazolo[1,5-a]pyrimidine moiety, and one or more of ethylenically unsaturated copolymerizable monomers, the former unsaturated monomers being present in an amount of at least 0.1 mol% based on the total amount of those monomers.
Claim 17
Dependent Claim
20 words
A silver halide photographic light-sensitive material as claimed in claim 1, said silver halide photographic light-sensitive material further comprises 1,2,4-triazolo[1,5-a]pyrimidine.
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) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |