EP0477670A1
Expired / Lapsed
EP
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Silver halide photographic light-sensitive material
Assignee: Konica Minolta Inc
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Filing: 1991-09-11
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Granted: —
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Expires: 2011-09-11
Abstract
Abstract A silver halide photographic material containing more than 70 wt % of a polymer latex modified by gelatin to gelatin contents in layers and Tg of the latex polymer being lower than 20°C. is disclosed. The dimentional stability is improved by having been able to combine the high portion of the polymer latex with the gelatin, which was not possible in the past, due to aggregation occured.
Inventors
- 👤 Takeo Arai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 16:56
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; Y; Y10; Y10S; Y10S430/00; Y10S430/14; Y10S430/151
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
36 words
A silver halide photographic material comprising: at least one layer containing a light sensitive silver halide emulsion provided on a support; in which at least one of the layers contains a polymer latex modified by gelatin.
Claim 2
Dependent Claim
36 words
A silver halide photographic material comprising: at least one layer containing a light sensitive silver halide emulsion provided on a support; in which at least one of the layers contains a polymer latex modified by gelatin.
Claim 3
Dependent Claim
28 words
The material of claim 1, wherein at least one of the layers contains more than 70 weight per cent of the polymer latex to a tolal gelatin contained.
Claim 4
Dependent Claim
18 words
The material of claim 1, wherein a Tg of the polymer latex is lower than 20 ° C.
Claim 5
Dependent Claim
39 words
The material of claim 1, 2, or 3, wherein the support is made of a polyester having at least one of the both sides thereof, a layer having a copolymer containing more than 20 % of a polyvinylidene chloride.
Claim 6
Dependent Claim
19 words
The material of claim 1, wherein an average particle size of the polymer latex is 0.005 to 1 µm.
Claim 7
Dependent Claim
19 words
The material of claim 5, wherein the average particle size of the polymer latex is 0.02 to 0.1 µm.
Claim 8
Dependent Claim
23 words
The material of claim 2, wherein The layer contains 70 to 200 weight per cent of the polymer latex to total gelatin contained.
Claim 9
Dependent Claim
120 words
A silver halide photographic material comprising: at least one layer containing a suspension of a light sensitive silver halide and a gelatin containing a gelatin modified polymer latex, provided on a polyester support having a coat containing a copolymer containing more than 20% of a poly vinylidene chloride wherein the layer contains 70 to 200 weight per cent of the gelatin modified polymer latex to a total gelatin contained, a Tg of the polymer latex is lower than 20 ° C, an average particle size of the polymer latex is 0.02 to 0.1 µm, and the polymer latex is modified by the gelatin by adding the gelatin when the polymer latex is polymelized from a plurality of monomers or intermediate.
Claim 10
Dependent Claim
120 words
A silver halide photographic material comprising: at least one layer containing a suspension of a light sensitive silver halide and a gelatin containing a gelatin modified polymer latex, provided on a polyester support having a coat containing a copolymer containing more than 20% of a poly vinylidene chloride wherein the layer contains 70 to 200 weight per cent of the gelatin modified polymer latex to a total gelatin contained, a Tg of the polymer latex is lower than 20 ° C, an average particle size of the polymer latex is 0.02 to 0.1 µm, and the polymer latex is modified by the gelatin by adding the gelatin when the polymer latex is polymelized from a plurality of monomers or intermediate.
Claim 11
Dependent Claim
26 words
A polymer latex modified by a gelatin combined with ten seventh to two times weight of gelatin and a silver halide with photographic material suspended thereto.
Claim 12
Dependent Claim
26 words
A polymer latex modified by a gelatin combined with ten seventh to two times weight of gelatin and a silver halide with photographic material suspended thereto.
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