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US4927731A Expired / Lapsed US ⏱️ 0.0 years remaining

Light-sensitive material containing silver halide, reducing agent, polymerizable compound, and polar compound

Assignee: Fujifilm Holdings Corp
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Filing: 1988-03-30
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Granted: 1990-05-22
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Expires: 2008-03-30
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Abstract

Abstract A light-sensitive material comprises a support and a light-sensitive layer containing silver halide, a reducing agent, a polymerizable compound and a base or base precursor. The silver halide, reducing agent and polymerizable compound are contained in microcapsules which are dispersed in the light-sensitive layer. The base or base precursor is arranged outside of the microcapsules. The light-sensitive layer further contains a polar compound having a melting point in the range of 30 DEG to 250 DEG C., which is arranged outside of the microcapsules. The polar compound may be arranged inside and outside of the microcapsules.

Inventors

  • 👤 Ryuichi Takahashi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 10:15
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/0285; Y; Y10; Y10S; Y10S430/00; Y10S430/156

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 237 words
A light-sensitive material comprising a support and a light-sensitive layer containing silver halide, a reducing agent, an ethylenically unsaturated polymerizable compound and a base or base precursor, said silver halide, reducing agent and polymerizable compound being contained in microcapsules which are dispersed in the light-sensitive layer, and said base or base precursor being arranged outside of the microcapsules, wherein the light-sensitive layer contains a polar compound having a melting point in the range of 30° to 250° C., said polar compound being arranged inside and outside of the microcapsules, and said polar compound arranged outside of the microcapsules is present in an amount of from 3 to 30 weight percent and wherein the reducing agent, the polar compound contained in the microcapsules, the polar compound arranged outside of the microcapsules and the base or a base formed from the base precursor have pKa values satisfying the conditions of the formulas (V) and (VI): D≦E≦G (V) D≦F≦G (VI) in which D represents the pKa value of the reducing agent; E represents the pKa value of the polar compound contained in the microcapsules; F represents the pKa value of the polar compound arranged outside of the microcapsules; and G represents the pKa value of the base or a base formed from the base precursor and wherein said microcapsules contain said polar compound in an amount of from 0.1 to 1.0 mole based on one mole of the reducing agent.
Claim 2
Dependent Claim 237 words
A light-sensitive material comprising a support and a light-sensitive layer containing silver halide, a reducing agent, an ethylenically unsaturated polymerizable compound and a base or base precursor, said silver halide, reducing agent and polymerizable compound being contained in microcapsules which are dispersed in the light-sensitive layer, and said base or base precursor being arranged outside of the microcapsules, wherein the light-sensitive layer contains a polar compound having a melting point in the range of 30° to 250° C., said polar compound being arranged inside and outside of the microcapsules, and said polar compound arranged outside of the microcapsules is present in an amount of from 3 to 30 weight percent and wherein the reducing agent, the polar compound contained in the microcapsules, the polar compound arranged outside of the microcapsules and the base or a base formed from the base precursor have pKa values satisfying the conditions of the formulas (V) and (VI): D≦E≦G (V) D≦F≦G (VI) in which D represents the pKa value of the reducing agent; E represents the pKa value of the polar compound contained in the microcapsules; F represents the pKa value of the polar compound arranged outside of the microcapsules; and G represents the pKa value of the base or a base formed from the base precursor and wherein said microcapsules contain said polar compound in an amount of from 0.1 to 1.0 mole based on one mole of the reducing agent.
Claim 3
Dependent Claim 29 words
The light-sensitive material as claimed in claim 1, wherein the polar compound arranged outside of the microcapsules has a melting point in the range of 50° to 150° C.
Claim 4
Dependent Claim 28 words
The light-sensitive material as claimed in claim 1, wherein the polar compound contained in the microcapsules has a melting point in the range of 50° to 150° C.
Claim 5
Dependent Claim 56 words
The light-sensitive material as claimed in claim 1, wherein the polar compound arranged outside of the microcapsules is a compound selected from the group consisting of a carboxylic acid amide derivative, a sulfonamide derivative, a phosphoric acid amide derivative, a ketone, an ester, an ether, an urea derivative, an urethane and a compound having hydroxyl group.
Claim 6
Dependent Claim 55 words
The light-sensitive material as claimed in claim 1, wherein the polar compound contained in the microcapsules is a compound selected from the group consisting of a carboxylic acid amide derivative, a sulfonamide derivative, a phosphoric acid amide derivative, a ketone, an ester, an ether, an urea derivative, an urethane and a compound having hydroxyl group.
Claim 7
Dependent Claim 20 words
The light-sensitive material as claimed in claim 1, wherein the polar compound contained in the microcapsules is a sulfonamide derivative.
Claim 8
Dependent Claim 76 words
The light-sensitive material as claimed in claim 1, wherein the polar compound contained in the microcapsules is a sulfonamide derivative having the formula (II): R.sup.4 --SO.sub.2 NH.sub.2 (II) in which R 4 is a monovalent group selected from the group consisting of an alkyl group, a cycloalkyl group, an alkenyl group, an alkinyl group, amino, an aryl group, an aralkyl group and a heterocyclic group, and each of which may have one or more substituent groups.
Claim 9
Dependent Claim 18 words
The light-sensitive material as claimed in claim 1, wherein the light-sensitive layer contains a color image forming substance.

References Cited (Backward Citations)

US3667959A Cited
US4624910A Cited
US4629676A Cited
US4649098A Cited
EP0203613A2 Cited
US4758496A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-05-21 1993-11-20 1994-05-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-05-21 1997-11-20 1998-05-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-05-21 2001-11-20 2002-05-22 $7700.00 Window Closed / Lapsed

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