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US3963499A Expired / Lapsed US ⏱️ 0.0 years remaining

Photographic light-sensitive material

Assignee: Fujifilm Holdings Corp
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Filing: 1974-10-15
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Granted: 1976-06-15
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Expires: 1994-10-15
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Abstract

Abstract A photographic light-sensitive material comprising a support having thereon a hydrophilic colloid layer containing at least two surface active agents selected from the group consisting of compounds represented by the general formula (I) ##EQU1## and the general formula (II) R.sub.3 -- SO.sub.3 M (II) wherein R 1 and R 2 each represents an aliphatic residue with the sum of the number of carbon atoms contained in R 1 and R 2 ranging from about 8 to 32; R 3 represents an aliphatic residue having about 8 to 20 carbon atoms; and M represents a cation or a cationic group capable of forming a salt with a sulfonic acid. The surface active agents have no toxic physiological action and high biodegradability.

Inventors

  • 👤 Keisuke Shiba
  • 👤 Hideki Naito
  • 👤 Nobuo Yamamoto
  • 👤 Masakazu Yoneyama

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 14:48
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38; G03C7/00; G03C7/30; G03C7/388; G03C7/3885; G03C7/392; G03C7/39208; G03C7/39236

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 129 words
A photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer with the light-sensitive material containing in a hydrophilic colloid layer thereon at least two surface active agents selected from the compounds represented by the general formula (I) ##EQU10## and the general formula (II) R.sub.3 -- SO.sub.3 M (II) wherein, R 1 and R 2 each represents an aliphatic residue with the sum of the carbon atoms contained in R 1 and R 2 ranging from about 8 to 32; R 3 represents an aliphatic residue having about 8 and 20 carbon atoms; M represents a cation or a cationic group capable of forming a salt with a sulfonic acid; and compounds (I) are seondary alkane sulfonates and compounds (II) are primary alkane sulfonates.
Claim 2
Dependent Claim 129 words
A photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer with the light-sensitive material containing in a hydrophilic colloid layer thereon at least two surface active agents selected from the compounds represented by the general formula (I) ##EQU10## and the general formula (II) R.sub.3 -- SO.sub.3 M (II) wherein, R 1 and R 2 each represents an aliphatic residue with the sum of the carbon atoms contained in R 1 and R 2 ranging from about 8 to 32; R 3 represents an aliphatic residue having about 8 and 20 carbon atoms; M represents a cation or a cationic group capable of forming a salt with a sulfonic acid; and compounds (I) are seondary alkane sulfonates and compounds (II) are primary alkane sulfonates.
Claim 3
Dependent Claim 31 words
The photographic light-sensitive material of claim 1, wherein said compounds represented by the general formulas (I) and (II) are alkanesulfonates and have a molecular weight ranging from about 200 to 800.
Claim 4
Dependent Claim 26 words
The photographic light-sensitive material of claim 1, wherein said hydrophilic colloid layer contains at least three surface active agents of the general formulas (I) and (II).
Claim 5
Dependent Claim 21 words
The photographic light-sensitive material of claim 1, wherein at least one of the silver halide photographic emulsions contains a color coupler.
Claim 6
Dependent Claim 82 words
The photographic light-sensitive material of claim 1, wherein said surface active agent represented by the general formula (II) is a C 13 -n-alkane sulfonate, a C 14 -n-alkane sulfonate, a C 15 -n-alkane sulfonate, a C 16 -n-alkane sulfonate, a C 17 -n-alkane sulfonate or a C 18 -n-alkane sulfonate, and the surface active agent represented by the general formula (I) is the secondary alkane sulfonates corresponding to the C 13 - to C 18 -n-alkane sulfonates of the general formula (II).
Claim 7
Dependent Claim 81 words
The photographic light-sensitive material of claim 4, wherein said light-sensitive material includes a blue-sensitive silver halide emulsion containing at least one of an open-chained acylacetamide coupler and an open-chained acylacetonitrile coupler as a yellow coupler, a green-sensitive silver halide emulsion containing at least one of a 5-pyrazolone coupler, a cyanoacetylcoumarone coupler and an indazolone coupler as a magenta coupler, and a red-sensitive silver halide emulsion containing at least one of a naphthol coupler and a phenol coupler as a cyan coupler.
Claim 8
Dependent Claim 260 words
The photographic light-sensitive material of claim 6, wherein said yellow coupler is represented by the general formula (IV) ##EQU11## wherein R 6 represents a primary, secondary or tertiary alkyl group having 1 to 18 carbon atoms, an aryl group, or an amino group; R 7 represents an aryl group; and Z 2 represents a hydrogen atom or a group capable of being split off during color development; said magenta coupler is represented by the general formula (III) ##EQU12## wherein R 4 represents a primary, secondary, or tertiary alkyl group, an aryl group, a heterocyclic ring, an amino group, a carbonamido group, a sulfonamido group, a ureido group, an alkoxy group, or an aryloxy group; R 5 represents a hydrogen atom, an aryl group, a heterocyclic group, or a primary, secondary or tertiary alkyl group; and Z 1 represents a hydrogen atom or a group capable of being split off during color development; and said cyan coupler is a coupler represented by the following general formula (V) or (VI) ##SPC10## wherein R 8 represents a carbamyl group, a sulfamyl group, an alkoxycarbonyl group, or an aryloxycarbonyl group; R 9 represents an alkyl group, an aryl group, a heterocyclic group, an amino group, a carbonamido group, a sulfonamido group, a sulfamyl group, or a carbamyl group; R 10 , R 11 and R 12 each represents the same group as defined for R 9 and also represents a halogen atom or an alkoxy group; and Z 3 represents a hydrogen atom or a group capable of being split off during color development.
Claim 9
Dependent Claim 70 words
The photographic light-sensitive material of claim 1, wherein said at least two surface active agents are primary alkane sulfonates selected from the group consisting of C 8 -n-alkane sulfonate, C 9 -n-alkane sulfonate, C 10 -n-alkane sulfonate, C 11 -n-alkane sulfonate, C 12 -n-alkane sulfonate, C 13 -n-alkane sulfonate, C 14 -n-alkane sulfonate, C 15 -n-alkane sulfonate, C 16 -n-alkane sulfonate, C 17 -n-alkane sulfonate, and C 18 -n-alkane sulfonate.
Claim 10
Dependent Claim 27 words
The photographic light-sensitive material of claim 1, wherein said primary alkane sulfonate and said secondary alkane sulfonate are selected from those having 8 to 18 carbon atoms.

References Cited (Backward Citations)

US3676141A Cited
US3762925A Cited
US3726683A Cited
US3822135A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-06-15 1979-12-15 1980-06-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-06-15 1983-12-15 1984-06-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-06-15 1987-12-15 1988-06-15 $7700.00 Window Closed / Lapsed

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