Patent US3055296A successfully refreshed from Google Patents.
US4232117A
Expired / Lapsed
US
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Photographic light-sensitive materials having improved film physical properties
Assignee: Fujifilm Holdings Corp
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Filing: 1978-02-13
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Granted: 1980-11-04
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Expires: 1998-02-13
Abstract
Abstract A silver halide photographic light-sensitive material having two or more hydrophilic colloid layers on at least one side of a support, wherein (i) a hydrophilic colloid layer positioned farther from the support contains gelatin, a matting agent having an average particle size of 1 to 5μ and colloidal silica and (ii) a hydrophilic colloid layer which is positioned nearer the support than the position of hydrophilic colloid layer (i) contains gelatin and a polymer latex.
Inventors
- 👤 Takashi Naoi
- 👤 Ikutard Horie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:38
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/32; G03C1/76; G03C1/91; G03C1/93; G03C1/95; Y; Y10; Y10S; Y10S430/00; Y10S430/151; Y10S430/155
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
200 words
A silver halide photographic light-sensitive element exhibiting good transparency after development comprising at least one silver halide emulsion layer on a support and two or more hydrophilic colloid layers on at least one side of said support, wherein (i) a hydrophilic colloid layer positioned farther from the support contains gelatin, a matting agent having an average particle size of 1 to 5μ and colloidal silica having an average particle size less than that of the matting agent and (ii) a hydrophilic colloid layer which is positioned nearer the support than the position of hydrophilic colloid layer (i) consists essentially of gelatin and a polymer latex comprising an aqueous dispersion of a water-insoluble polymer wherein the polymer has an average particle size of about 20 mμ to about 200 mμ, said matting agent being present in an amount effective to decrease the adhesion of the hydrophilic colloid layer in which it is present, said collidal silica being present in an amount effective to improve the antiadhesive property of the hydrophilic layer in which it is present and said polymer latex being present in an amount effective to improve dimensional stability, gelatin present in the element layers serving as a hydrophilic binder.
Claim 2
Dependent Claim
200 words
A silver halide photographic light-sensitive element exhibiting good transparency after development comprising at least one silver halide emulsion layer on a support and two or more hydrophilic colloid layers on at least one side of said support, wherein (i) a hydrophilic colloid layer positioned farther from the support contains gelatin, a matting agent having an average particle size of 1 to 5μ and colloidal silica having an average particle size less than that of the matting agent and (ii) a hydrophilic colloid layer which is positioned nearer the support than the position of hydrophilic colloid layer (i) consists essentially of gelatin and a polymer latex comprising an aqueous dispersion of a water-insoluble polymer wherein the polymer has an average particle size of about 20 mμ to about 200 mμ, said matting agent being present in an amount effective to decrease the adhesion of the hydrophilic colloid layer in which it is present, said collidal silica being present in an amount effective to improve the antiadhesive property of the hydrophilic layer in which it is present and said polymer latex being present in an amount effective to improve dimensional stability, gelatin present in the element layers serving as a hydrophilic binder.
Claim 3
Dependent Claim
62 words
The silver halide photographic light-sensitive element of claim 1, wherein said element contains two hydrophilic colloid layers on the back surface of the support and in which the hydrophilic colloid layer (i) farther from the support contains said gelatin, said matting agent and said colloidal silica and the hydrophilic colloid layer (ii) nearer the support contains said gelatin and said polymer latex.
Claim 4
Dependent Claim
41 words
The silver halide photographic light-sensitive element of claim 2, wherein the matting agent is present in an amount of about 0.1 to about 5% by weight based on the dry weight of the gelatin in both of said hydrophilic colloid layers.
Claim 5
Dependent Claim
40 words
The silver halide photographic light-sensitive element of claim 2, wherein the colloidal silica is present in an amount of about 5 to about 100% by weight based on the dry weight of the gelatin in the hydrophilic colloid layer (i).
Claim 6
Dependent Claim
42 words
The silver halide photographic light-sensitive element of claim 2, wherein the hydrophilic colloid layer (i) has a thickness of about 0.1 to 3μ and the two hydrophilic colloid layers (i) and (ii) have a total thickness of about 1 to about 10μ.
Claim 7
Dependent Claim
42 words
The silver halide photographic light-sensitive element of claim 2, wherein the amount of the polymer latex present is an amount of about 1 to about 100% by weight based on the dry weight of the gelatin of the hydrophilic colloid layer (ii).
Claim 8
Dependent Claim
51 words
The silver halide photographic light-sensitive element of claim 1, wherein the hydrophilic colloid layer (i) is a surface protective layer and contains said gelatin, said matting agent and said colloidal silica and said hydrophilic colloid layer (ii) is a silver halide emulsion layer and contains said gelatin and said polymer latex.
Claim 9
Dependent Claim
91 words
The silver halide photographic light-sensitive element of claim 1, comprising a silver halide emulsion layer and a surface protective layer on one side of the support and on the opposite side of the support a back upper layer farther from the support and a back lower layer nearer the support, with the surface protective layer and the back upper layer each containing said gelatin, said matting agent and said colloidal silica, and with the silver halide emulsion layer and the back lower layer each containing said gelatin and said polymer latex.
Claim 10
Dependent Claim
55 words
The silver halide photographic light-sensitive element of claim 8, wherein the back upper layer and/or the surface protective layer additionally contains a viscosity increasing agent having therein a repeating unit represented by the following general formula ##STR5## wherein m is 0, 1 or 2 and M is an alkali metal atom or an ammonium group.
Claim 11
Dependent Claim
93 words
The silver halide photographic light-sensitive element of claim 1, wherein the matting agent is present in an amount of about 0.1 to about 5% by weight, the colloidal silica is present in an amount of about 5 to about 100% by weight, and the polymer latex is present in an amount of about 1 to about 100% by weight, based on the dry weight of the gelatin in the hydrophilic colloid layer in which they are present, further wherein the colloidal silica has an average particle size of 7 mμ to 120 mμ.
Claim 12
Dependent Claim
53 words
The silver halide photographic light-sensitive element of claim 10, wherein the amount of gelatin in the hydrophilic colloid layer positioned further away from the support is about 0.1 to about 3 g/m 2 and wherein the amount of gelatin in other hydrophilic colloid layers is about 1 to about 7 g/m 2 .
Claim 13
Dependent Claim
55 words
The silver halide photographic light-sensitive element of claim 11, wherein the polymer of the polymer latex has an average molecular weight of above about 100,000 and comprises monomer units selected from the group consisting of alkyl esters, hydroxyalkyl esters or glycidyl esters of acrylic acid, alkyl esters, hydroxyalkyl esters or glycidyl esters of methacrylic acid.
Claim 14
Dependent Claim
22 words
The silver halide photographic light-sensitive element of claim 12, wherein the hydrophilic colloid layer (i) is an outermost layer in the element.
Claim 15
Dependent Claim
22 words
The silver halide photographic light-sensitive element of claim 13, wherein said outermost layer is a surface protective layer or a backing layer.
Claim 16
Dependent Claim
32 words
The silver halide photographic light-sensitive element of claim 12, wherein the hydrophilic colloid layer (i) is a surface protective layer which is on the silver halide emulsion layer side of the support.
Claim 17
Dependent Claim
30 words
The silver halide photographic light-sensitive element of claim 12, wherein the hydrophilic colloid layers (i) and (ii) are on the side of the element opposite the silver halide emulsion layer.
Claim 18
Dependent Claim
42 words
The silver halide photographic light-sensitive element of claim 16, wherein the hydrophilic colloid layer (i) has a thickness of about 0.1 to 3μ and the two hydrophilic colloid layers (i) and (ii) have a total thickness of about 1 to about 10μ.
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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) | 1983-11-04 | 1984-05-05 | 1984-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-04 | 1988-05-05 | 1988-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-04 | 1992-05-05 | 1992-11-04 | $7700.00 | Window Closed / Lapsed |