US4914012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1988-12-28
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Granted: 1990-04-03
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Expires: 2008-12-28
Abstract
Abstract A silver halide photographic light-sensitive material having excellent scratch resistance is disclosed. The photographic light-sensitive material comprises a support having thereon at least two hydrophilic colloid layers, wherein at least one of the layers is a photosensitive silver halide emulsion layer, and at least one of the layers contains composite latex comprising polymeric acrylic acid ester and/or polymeric methacrylic acid ester, and colloidal silica.
Inventors
- 👤 Masayoshi Kawai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:15
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7614; G03C1/95; Y; Y10; Y10S; Y10S430/00; Y10S430/162
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
56 words
A silver halide photographic light-sensitive material comprising a support having thereon at least two hydrophilic colloid layers, wherein at least one of said layers is a photosensitive silver halide emulsion layer, and at least one of said layers contains a composite polymer latex comprising polymeric acrylic acid ester and/or polymeric methacrylic acid ester and colloidal silica.
Claim 2
Dependent Claim
56 words
A silver halide photographic light-sensitive material comprising a support having thereon at least two hydrophilic colloid layers, wherein at least one of said layers is a photosensitive silver halide emulsion layer, and at least one of said layers contains a composite polymer latex comprising polymeric acrylic acid ester and/or polymeric methacrylic acid ester and colloidal silica.
Claim 3
Dependent Claim
49 words
A silver halide photographic light sensitive material as in claim 1, wherein the colloidal silica is present in the composite latex in an amount of 5 to 400% by weight based on the amount by weight of polymeric acrylic acid ester and/or polymeric methacrylic acid in the composite latex.
Claim 4
Dependent Claim
31 words
A silver halide photographic light-sensitive material as in claim 1, wherein said composite latex is provided in an amount of from 0.03 to 10 gram per square meter of photographic material.
Claim 5
Dependent Claim
31 words
A silver halide photographic light-sensitive material as in claim 1, wherein said composite latex is provided in a layer which is further from the support than the silver halide emulsion layer.
Claim 6
Dependent Claim
24 words
A silver halide photographic light-sensitive material as in claim 4, wherein said layer containing the composite latex is the layer furthest from the support.
Claim 7
Dependent Claim
28 words
A silver halide photographic light-sensitive material as in claim 1, wherein said composite latex is comprised of particles having a particle diameter of from 0.01 to 0.5 μm.
Claim 8
Dependent Claim
28 words
A silver halide photographic light-sensitive material as in claim 1, wherein said composite latex is comprised of particles having a particle diameter of from 0.02 to 0.3 μm.
Claim 9
Dependent Claim
48 words
A silver halide photographic light-sensitive material as in claim 1, wherein said polymeric acrylic acid ester or polymeric methacrylic acid ester is prepared from a monomer selected from the group consisting of methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, ethyl methacrylate, and propyl methacrylate, or mixtures thereof.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |