US4853312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material with pH not higher than 7 containing silver halide, reducing agent and polymerizable compound
Assignee: Fujifilm Holdings Corp
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Filing: 1987-05-06
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Granted: 1989-08-01
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Expires: 2007-05-06
Abstract
Abstract A light-sensitive material comprising a light-sensitive layer which contains silver halide, a reducing agent and a polymerizable compound provided on a support, characterized in that the light-sensitive layer has a pH value of not higher than 7.
Inventors
- 👤 Makoto Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:51
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/0285
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
56 words
A light-sensitive material comprising a light-sensitive layer which contains silver halide grains, a reducing agent and an ethylenic unsaturated polymerizable compound provided on a support, said silver halide grains and polymerizable compound being contained in microcapsules which are dispersed in the light-sensitive layer, wherein the light-sensitive layer has a pH value of not higher than 7.
Claim 2
Dependent Claim
56 words
A light-sensitive material comprising a light-sensitive layer which contains silver halide grains, a reducing agent and an ethylenic unsaturated polymerizable compound provided on a support, said silver halide grains and polymerizable compound being contained in microcapsules which are dispersed in the light-sensitive layer, wherein the light-sensitive layer has a pH value of not higher than 7.
Claim 3
Dependent Claim
21 words
The light-sensitive material as claimed in claim 1, wherein the light-sensitive layer has a pH value of from 5 to 6.5.
Claim 4
Dependent Claim
16 words
The light-sensitive material as claimed in claim 1, wherein the light-sensitive layer further contains an acid.
Claim 5
Dependent Claim
17 words
The light-sensitive material as claimed in claim 1, wherein the light-sensitive layer further contains an inorganic acid.
Claim 6
Dependent Claim
25 words
The light-sensitive material as claimed in claim 1, wherein the light-sensitive layer further contains an acid having a boiling point of 80° to 200° C.
Claim 7
Dependent Claim
19 words
The light-sensitive material as claimed in claim 1, wherein the light-sensitive layer further contains a color image forming substance.
Claim 8
Dependent Claim
17 words
The light-sensitive material as claimed in claim 1, wherein the reducing agent is contained in the microcapsules.
Claim 9
Dependent Claim
21 words
The light-sensitive material as claimed in claim 1, wherein the reducing agent has a pKa value of not lower than 9.
Claim 10
Dependent Claim
16 words
The light-sensitive material as claimed in claim 1, wherein the light-sensitive layer further contains a binder.
Claim 11
Dependent Claim
78 words
An image forming method which comprises the steps of: imagewise exposing a light-sensitive material comprising a light-sensitive layer which contains silver halide grains, a reducing agent and an ethylenic unsaturated polymerizable compound provided on a support, wherein the light-sensitive layer has a pH value of not higher than 7; raising the pH value of the light-sensitive layer to a value of higher than 7; and simultaneously or thereafter heating the light-sensitive material to imagewise polymerize the polymerizable compound.
Claim 12
Dependent Claim
78 words
An image forming method which comprises the steps of: imagewise exposing a light-sensitive material comprising a light-sensitive layer which contains silver halide grains, a reducing agent and an ethylenic unsaturated polymerizable compound provided on a support, wherein the light-sensitive layer has a pH value of not higher than 7; raising the pH value of the light-sensitive layer to a value of higher than 7; and simultaneously or thereafter heating the light-sensitive material to imagewise polymerize the polymerizable compound.
Claim 13
Dependent Claim
27 words
The image-forming method as claimed in claim 10, wherein the silver halide grains and polymerizable compound are contained in microcapsules which are dispersed in the light-sensitive layer.
Claim 14
Dependent Claim
21 words
The image-forming method as claimed in claim 10, wherein the light-sensitive layer has a pH value of from 5 to 6.5.
Claim 15
Dependent Claim
25 words
The image-forming method as claimed in claim 10, the light-sensitive material is heated at an a temperature in the range of 80° to 200° C.
Claim 16
Dependent Claim
33 words
The image-forming method as claimed in claim 10, wherein after heating the light-sensitive material, the light-sensitive material is pressed on an image-receiving material to transfer the unpolymerized polymerizable compound to the image-receiving material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |