Patent US715901A successfully refreshed from Google Patents.
Patent US4584263A successfully refreshed from Google Patents.
US4584263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic light-sensitive material containing particles of redox compound and --COO-- containing polymer
Assignee: Fujifilm Holdings Corp
•
Filing: 1985-08-08
•
Granted: 1986-04-22
•
Expires: 2005-08-08
Abstract
Abstract A photographic light-sensitive material is described, comprising a support having thereon at least one combination of a silver halide photographic emulsion layer and associated therewith a dye-providing compound capable of imagewise forming a mobile dye as a result of imagewise light exposure and photographic development, said silver halide photographic emulsion layer or a layer containing said dye-providing compound having dispersed, in a hydrophilic colloid, a water-insoluble and organic solvent-soluble homopolymer or copolymer having as the main chain or a side chain thereof a repeating unit including a ##STR1## bond and a redox compound represented by formula (I) as combined paticles; ##STR2## wherein R represents a hydrogen atom; a substituted or unsubstituted alkyl group, aryl group, acylamino group, alkoxy group, aryloxy group, alkylthio group, arylthio group, carbamoyl group, acyl group, alkoxycarbonyl group, aryloxycarbonyl group, sulfamoyl group, alkylsulfonyl group, or arylsulfonyl group; a halogen atom; a carboxy group; or a sulfonyl group; two of X 1 , X 2 , X 3 , and X 4 represents members selected from the group consisting of a hydroxy group or a sulfonamido group having 1 or more carbon atoms, and the other two thereof each represents a member selected from the atoms and groups as defined above for R; or R and X 1 together form a carboncylic or heterocyclic group; and the total number of carbon atoms of R, X 1 , X 2 , X 3 , and X 4 is sufficiently large to immobilize the redox compound in a hydrophilic colloid layer.
Inventors
- 👤 Osamu Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:35
CPC Classifications
G; G03; G03C; G03C8/00; G03C7/00; G03C7/30; G03C7/392; G03C7/39296; G03C7/396
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
249 words
A photographic light-sensitive material comprising a support having thereon at least one combination of a silver halide photographic emulsion layer and associated therewith a dye-providing compound capable of imagewise forming a mobile dye as a result of imagewise light exposure and photographic development, said silver halide photographic emulsion layer or a layer containing said dye-providing compound having dispersed, in a hydrophilic colloid a water-insoluble and organic solvent-soluble homopolymer or copolymer having as the main chain or a side chain thereof a repeating unit including a ##STR17## bond and a redox compound represented by formula (I) as combined particles; ##STR18## wherein R represents a hydrogen atom; a substituted or unsubstituted alkyl group, aryl group, acylamino group, alkoxy group, aryloxy group, alkylthio group, arylthio group, carbamoyl group, acyl group, alkoxycarbonyl group, aryloxycarbonyl group, sulfamoyl group, alkylsulfonyl group, or arylsulfonyl group; a halogen atom; a carboxy group; or a sulfon group; two of X 1 , X 2 , X 3 , and X 4 represent members selected from the group consisting of a hydroxy group or a sulfonamido group having 1 or more carbon atoms, and the other two thereof each represents a member selected from the atoms and group as defined above for R; or R and X 1 together form a carbocyclic or heterocyclic group; and the total number of carbon atoms of R, X 1 , X 2 , X 3 , and X 4 is sufficiently large to immobilize the redox compound in a hydrophilic colloid layer.
Claim 2
Dependent Claim
249 words
A photographic light-sensitive material comprising a support having thereon at least one combination of a silver halide photographic emulsion layer and associated therewith a dye-providing compound capable of imagewise forming a mobile dye as a result of imagewise light exposure and photographic development, said silver halide photographic emulsion layer or a layer containing said dye-providing compound having dispersed, in a hydrophilic colloid a water-insoluble and organic solvent-soluble homopolymer or copolymer having as the main chain or a side chain thereof a repeating unit including a ##STR17## bond and a redox compound represented by formula (I) as combined particles; ##STR18## wherein R represents a hydrogen atom; a substituted or unsubstituted alkyl group, aryl group, acylamino group, alkoxy group, aryloxy group, alkylthio group, arylthio group, carbamoyl group, acyl group, alkoxycarbonyl group, aryloxycarbonyl group, sulfamoyl group, alkylsulfonyl group, or arylsulfonyl group; a halogen atom; a carboxy group; or a sulfon group; two of X 1 , X 2 , X 3 , and X 4 represent members selected from the group consisting of a hydroxy group or a sulfonamido group having 1 or more carbon atoms, and the other two thereof each represents a member selected from the atoms and group as defined above for R; or R and X 1 together form a carbocyclic or heterocyclic group; and the total number of carbon atoms of R, X 1 , X 2 , X 3 , and X 4 is sufficiently large to immobilize the redox compound in a hydrophilic colloid layer.
Claim 3
Dependent Claim
34 words
A photographic light-sensitive material as in claim 1, wherein the total number of carbon atoms of R, X 1 , X 2 , X 3 , and X 4 is not less than 10.
Claim 4
Dependent Claim
25 words
A photographic light-sensitive material as in claim 1, wherein the compound represented by formula (I) has a melting point of not more than 100° C.
Claim 5
Dependent Claim
27 words
A photographic light-sensitive material as in claim 1, wherein the compound of formula (I) is used in an amount of from 0.01 to 0.1 millimole/m 2 .
Claim 6
Dependent Claim
36 words
A photographic light-sensitive material as in claim 4, wherein the amount of the homopolymer or copolymer is from about 0.1/1 to 30/1, by weight ratio, with respect to the amount of the compound of formula (I).
Claim 7
Dependent Claim
35 words
A photographic light-sensitive material as in claim 4, wherein the amount of the homopolymer or copolymer is from 6/1 to 12/1, by weight ratio, with respect to the amount of the compound of formula (I).
Claim 8
Dependent Claim
134 words
A photographic light-sensitive material as in claim 1, wherein R represents a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, aryl group having 6 to 30 carbon atoms, acylamino group having 2 to 30 carbon atoms, alkoxy group having 1 to 30 carbon atoms, aryloxy group having 6 to 30 carbon atoms, alkylthio group having 1 to 30 carbon atoms, arylthio group having 6 to 30 carbon atoms, carbamoyl group having 1 to 40 carbon atoms, acyl group having 2 to 40 carbon atoms, alkoxycarbonyl group having 2 to 40 carbon atoms, aryloxycarbonyl group having 7 to 40 carbon atoms, sulfamoyl group having up to 40 carbon atoms, alkyl or arylsulfonyl group having 1 to 40 carbon atoms; a halogen atom; a carboxy group or a sulfon group.
Claim 9
Dependent Claim
30 words
A photographic light-sensitive material as in claim 1, wherein the carbocyclic or heterocyclic group formed by X 1 and R is a saturated or unsaturated 5- or 6-membered ring group.
Claim 10
Dependent Claim
110 words
A photographic light-sensitive material as in claim 1, wherein any one of the groups represented by R, X 1 , X 2 , X 3 and X 4 or the carbocyclic or heterocyclic group formed by R and X 1 is substituted with a substituent selected from a group consisting of an alkyl group, an aryl group, an acylamino group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfamoyl group, an alkyl or arylsulfonyl group, a hydroxyl group, an amino group, an alkyl or arylsulfonamido group, a carboxyl group and a sulfon group.
Claim 11
Dependent Claim
157 words
A photographic light-sensitive material as in claim 1, wherein the water-insoluble and organic solvent-soluble homopolymer or copolymer having as the main chain or a side chain thereof a repeating unit including ##STR19## bond is selected from (A) homopolymers and copolymers each having the repeating unit shown by the following formula ##STR20## wherein R 1 represents hydrogen atom or an alkyl group (including a substituted alkyl group) and R 2 represents an alkyl group (including a substituted alkyl group) or an aryl group (including a substituted aryl group); (B) homopolymers and copolymers each having the repeating unit shown by the following formula ##STR21## wherein R 1 and R 2 have the same significance as described in (A); (C) polyester obtained by the condensation of polyhydric alcohols and polybasic acids; and (D) polyesters having the following repeating unit ##STR22## wherein m represents an integer of 4 to 7 and the chain --CH 2 -- may be a branched one.
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) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |