← Back to Patent Explorer
EP0289273A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Light-sensitive silver halide photographic material

Assignee: Konica Minolta Inc
•
Filing: 1988-04-27
•
Granted: —
•
Expires: 2008-04-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A silver halide photographic light-sensitive material prevented from rottenness or decomposition by bacteria or mold without degradation of photographic properties such as sensi­tivity and fog. The silver halide photographic light-­sensitive material has a photographic constituent layer con­taining at least one silver halide emulsion layer, and the silver halide grains contained in the emulsion layer comprises not less than 90 mole% of silver chloride. The photographic constituent layer contains at least one organic compound capapble of forming a compound having a solubility product Ksp of not more than 1x10⁻¹¹ with a silver ion, and at least one compound selected from the group of the compounds having the following Formula I, II, III or IV:

Inventors

  • 👤 Masao Konica Corporation Sasaki
  • 👤 Kaoru Konica Corporation Onodera

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 17:02
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/37; G03C1/34

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 335 words
A silver halide photographic light-sensitive material comprising a support having thereon a photographic constituent layer including at least one silver halide emulsion layer, wherein said silver halide emulsion layer contains silver halide grains of which the silver chloride content is not less than 90 mole%, and said photographic constituent layer con­tains at least one first compound selected from organic com­pounds capable of forming a compound having a solubility product Ksp of not more than 1x10⁻¹¹ with a silver ion, and at least one second compound selected from the group consisting of the compounds having the following Formula I, II, III or IV: wherein R₁ represents a hydrogen atom, an alkyl group or an aryl group; R₂ represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a nitro group, a carboxy group, a sulfo group, a sulfamoyl group, a hydroxy group, an alkoxy group or a thiazolyl group; Z₁ represents a group of non-metal atoms necessary to complete a thiazoline ring, wherein R₃ and R₄ each independently represents an alkyl group, an aryl group, in which R, R′ and R˝ each independently represents an alkyl group or an aryl group, and R₃ and R₄ may be combined to form a ring together with the nitrogen atom; and R₅, R₆ and R₇ each independently represents a halogen atom or an alkyl group, wherein R₈ and R₉ each independently represents a hydrogen atom, an alkyl group, an aryl group or a nitrogen-containing heterocyclic group, wherein R₁₀ represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group, a hetero­cyclic group, an alkylaminocarbonyl group, an arylaminocar­bonyl group, an alkylaminosulfonyl group or an arylamino­sulfonyl group; R₁₁ and R₁₂ each independently represents a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an aryl group, a cyano group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an alkylsulfonyloxy group or a heterocyclic group, provided that the R₁₁ and R₁₂ may be combined with each other to form a ring.
Claim 2
Dependent Claim 335 words
A silver halide photographic light-sensitive material comprising a support having thereon a photographic constituent layer including at least one silver halide emulsion layer, wherein said silver halide emulsion layer contains silver halide grains of which the silver chloride content is not less than 90 mole%, and said photographic constituent layer con­tains at least one first compound selected from organic com­pounds capable of forming a compound having a solubility product Ksp of not more than 1x10⁻¹¹ with a silver ion, and at least one second compound selected from the group consisting of the compounds having the following Formula I, II, III or IV: wherein R₁ represents a hydrogen atom, an alkyl group or an aryl group; R₂ represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a nitro group, a carboxy group, a sulfo group, a sulfamoyl group, a hydroxy group, an alkoxy group or a thiazolyl group; Z₁ represents a group of non-metal atoms necessary to complete a thiazoline ring, wherein R₃ and R₄ each independently represents an alkyl group, an aryl group, in which R, R′ and R˝ each independently represents an alkyl group or an aryl group, and R₃ and R₄ may be combined to form a ring together with the nitrogen atom; and R₅, R₆ and R₇ each independently represents a halogen atom or an alkyl group, wherein R₈ and R₉ each independently represents a hydrogen atom, an alkyl group, an aryl group or a nitrogen-containing heterocyclic group, wherein R₁₀ represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group, a hetero­cyclic group, an alkylaminocarbonyl group, an arylaminocar­bonyl group, an alkylaminosulfonyl group or an arylamino­sulfonyl group; R₁₁ and R₁₂ each independently represents a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an aryl group, a cyano group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an alkylsulfonyloxy group or a heterocyclic group, provided that the R₁₁ and R₁₂ may be combined with each other to form a ring.
Claim 3
Dependent Claim 21 words
The material of claim 1, wherein said silver chloride content of said silver halide grains is not less than 95 mole%.
Claim 4
Dependent Claim 21 words
The material of claim 2, wherein said silver chloride content of said silver halide grains is not less than 99 mole%.
Claim 5
Dependent Claim 52 words
The material of claim 1, wherein said silver halide emulsion layer contains said silver halide grains comprising not less than 90 mole% of silver chloride in a ratio of not less than 60 % by weight to the total weight of the silver halide grains contained in said silver halide emulsion layer.
Claim 6
Dependent Claim 53 words
The material of claim 4, wherein said silver halide emulsion layer contains said silver halide grains having a silver halide content of not less than 90 mole% in a ratio of not less than 80 % by weight to the total of the silver halide grains contained in said silver halide emulsion layer.
Claim 7
Dependent Claim 57 words
The material of claim 1, wherein said first compound is represented by the following Formula S: wherein Q represents a group of atoms necessary for completing a five- or six-member heterocyclic ring, or a five- or six-­member heterocyclic ring condensed with a benzene ring or a naphthalene ring; and M represents a hydrogen atom or a cation.
Claim 8
Dependent Claim 276 words
The material of claim 6, wherein said first compound is selected from the compounds having the following Formula SA, SB, SC or SD: wherein R A represents a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a halogen atom, a carboxy group or a salt thereof, a sulfo group or a salt thereof or an amino group, Z A represents -NH-, -O- or -S-; and M represents a hydrogen atom or a cation, wherein Ar represents in which R B represents an alkyl group, an alkoxy group, a carboxy group or a salt thereof, a sulfo group or a salt thereof, a hydroxy group, an amino group, an acylamino group, a carbamoyl group or a sulfonamido group; n represents an integer of 0 to 2; and M is the same as the M defined in Formula SA, wherein Zc represents a -NRc₁- group, an oxygen atom or a sulfur atom; Rc represents a hydrogen atom, an alkyl group, an aryl group, an alkenyl group, a cycloalkyl group, a SRc₁ group, an -NRc₂Rc₃ group, an -NHCORc₄ group, an -NHSO₂Rc₅ group or a heterocyclic group, wherein Rc₁ represents a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group, a -CORc₄ group or an -SO₂Rc₅ group, Rc₂ and Rc₃ each independently represents a hydrogen atom, an alkyl group or an aryl group, Rc₄ and RC₅ each represents an alkyl group or an aryl group; and M is the same as the M defined in Formula SA, wherein R D , M, R D¹ and R D² are the same as the Rc, M, Rc₁ and Rc₂, respectively, defined in Formula SC.
Claim 9
Dependent Claim 17 words
The material of claim 1, wherein said first compound is contained in said silver halide emulsion layer.
Claim 10
Dependent Claim 21 words
The material of claim 1, wherein said second compound is contained in a non-light-sensitive layer included in said photographic constituent layer.
Claim 11
Dependent Claim 33 words
The material of claim 1, wherein said first compound is contained in said silver halide emulsion layer and said second compound is contained in a non-light-sensitive layer included in said photographic constituent layer.
Claim 12
Dependent Claim 39 words
The material of claim 6, wherein said compound having Formula S is contained in said photographic constituent layer in an amount of 1x10⁻⁶ to 1x10⁻¹ mole per mole of the silver halide contained in said silver halide emulsion layer.
Claim 13
Dependent Claim 39 words
The material of claim 11, wherein said compound having Formula S is contained in said photographic constituent layer in an amount of 1x10⁻⁵ to 1x10⁻² mole per mole of the silver halide contained in said silver halide emulsion layer.
Claim 14
Dependent Claim 27 words
The material of claim 1, wherein said second compound is contained in said photographic constituent layer in an amount of 5x10⁻⁷ to 2x10⁻³ mole per square meter.
Claim 15
Dependent Claim 27 words
The material of claim 13, wherein said second compound is contained in said photographic constituent layer in an amount of 5x10⁻⁶ to 5x10⁻⁴ mole per square meter.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag