US4507380A — Heat-developable color photographic material cont…

Claim 1

Independent Claim 176 words

A heat-developable color photographic material comprising a support having thereon a layer containing at least a photographic silver halide and the photographic material containing an organic silver salt oxidizing agent, a reducing agent, a binder and a dye releasing compound which releases a diffusible dye upon heat development wherein the dye releasing compound is represented by the following general formula: C--L--D where C represents a moiety capable of bonding to an oxidized product which is formed by a reaction between a reducing agent and an organic silver salt oxidizing agent; D represents a dye portion for forming an image which does not contain a carboxylic acid group or a sulfonic acid group; and L represents a connection group between C and D and the bond between C and L is cleaved upon the reaction of C with the oxidized product of the reducing agent; and the support is capable of receiving the released dye or the support has a layer composed of an organic high molecular weight compound which is capable of receiving the released dye.

Claim 2

Dependent Claim 176 words

A heat-developable color photographic material comprising a support having thereon a layer containing at least a photographic silver halide and the photographic material containing an organic silver salt oxidizing agent, a reducing agent, a binder and a dye releasing compound which releases a diffusible dye upon heat development wherein the dye releasing compound is represented by the following general formula: C--L--D where C represents a moiety capable of bonding to an oxidized product which is formed by a reaction between a reducing agent and an organic silver salt oxidizing agent; D represents a dye portion for forming an image which does not contain a carboxylic acid group or a sulfonic acid group; and L represents a connection group between C and D and the bond between C and L is cleaved upon the reaction of C with the oxidized product of the reducing agent; and the support is capable of receiving the released dye or the support has a layer composed of an organic high molecular weight compound which is capable of receiving the released dye.

Claim 3

Independent Claim 220 words

A method of forming a color image which comprises (1) imagewise exposing a heat-developable color photographic material comprising a support having thereon a layer containing at least a photographic silver halide, the photographic material containing an organic silver salt oxidizing agent, a reducing agent, a binder and a dye releasing compound which releases a diffusible image forming dye upon heat development wherein the dye releasing compound is represented by the following general formula: C--L--D where C represents a moiety capable of bonding to an oxidized product which is formed by a reaction between a reducing agent and an organic silver salt oxidizing agent; D represents a dye portion for forming an image which does not contain a carboxylic group or sulfonic acid group; and L represents a connection group between C and D and the bond between C and L is cleaved upon the reaction of C with the oxidized product of the reducing agent; and the support is capable of receiving a released dye or the support having thereon a layer compound of an organic high molecular weight compound which is capable of receiving a released dye, (2) developing the exposed photographic material by uniformly heating to release a diffusible dye and (3) diffusing the diffusible dye into the support or the layer capable of receiving the released dye.

Claim 4

Independent Claim 220 words

A method of forming a color image which comprises (1) imagewise exposing a heat-developable color photographic material comprising a support having thereon a layer containing at least a photographic silver halide, the photographic material containing an organic silver salt oxidizing agent, a reducing agent, a binder and a dye releasing compound which releases a diffusible image forming dye upon heat development wherein the dye releasing compound is represented by the following general formula: C--L--D where C represents a moiety capable of bonding to an oxidized product which is formed by a reaction between a reducing agent and an organic silver salt oxidizing agent; D represents a dye portion for forming an image which does not contain a carboxylic group or sulfonic acid group; and L represents a connection group between C and D and the bond between C and L is cleaved upon the reaction of C with the oxidized product of the reducing agent; and the support is capable of receiving a released dye or the support having thereon a layer compound of an organic high molecular weight compound which is capable of receiving a released dye, (2) developing the exposed photographic material by uniformly heating to release a diffusible dye and (3) diffusing the diffusible dye into the support or the layer capable of receiving the released dye.

Claim 5

Dependent Claim 32 words

A heat-developable color photographic material as claimed in claim 1, wherein the moiety represented by C includes an active methylene residue, an active methine residue, a phenol residue or a naphthol residue.

Claim 6

Dependent Claim 176 words

A heat-developable color photographic material as claimed in claim 3, wherein the moiety represented by C is represented by the following general formula (I), (II), (III), (IV), (V), (VI), or (VII): ##STR16## wherein R 1 , R 2 , R 3 and R 4 independently represent a hydrogen atom or a substituent selected from the group consisting of an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, an aryloxy group, an aralkyl group, an acyl group, an acylamino group, an alkoxyalkyl group, an aryloxyalkyl group, an N-substituted carbamoyl group, an alkylamino group, an arylamino group, a halogen atom, an acyloxy group, an acyloxyalkyl group and a cyano group, and these substituents may be further substituted with a hydroxyl group, a carboxyl group, a sulfo group, a cyano group, a nitro group, a sulfamoyl group, an N-substituted sulfamoyl group, a carbamoyl group, an N-substituted carbamoyl group, an acylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an aralkyl group or an acyl group.

Claim 7

Dependent Claim 20 words

A heat-developable color photographic material as claimed in claim 1, wherein the moiety represented by C contains a ballast group.

Claim 8

Dependent Claim 30 words

A heat-developable color photographic material as claimed in claim 5, wherein the ballast group is a hydrophobic group selected from an alkyl group, an alkoxyalkyl group and an aryloxyalkyl group.

Claim 9

Dependent Claim 49 words

A heat-developable color photographic material as claimed in claim 5, wherein the ballast group is a hydrophilic group selected from a carboxy group or a salt thereof, a sulfo group or a salt thereof, a phosphoric acid group or a salt thereof, a carbonamido group and a sulfonamido group.

Claim 10

Dependent Claim 27 words

A heat-developable color photographic material as claimed in claim 1, wherein a total number of the carbon atoms contained in the moiety C is 12 or more.

Claim 11

Dependent Claim 35 words

A heat-developable color photographic material as claimed in claim 1, wherein the connecting group represented by L is a divalent group connecting between the moiety C and the dye portion D with a covalent bond.

Claim 12

Dependent Claim 61 words

A heat-developable color photographic material as claimed in claim 9, wherein the divalent group is selected from the group represented by the following general formulae: ##STR17## wherein R and R' independently represent a hydrogen atom, a methyl group or an ethyl group, and the benzene ring may further be substituted with an alkyl group, an alkoxy group or a halogen atom.

Claim 13

Dependent Claim 40 words

A heat-developable color photographic material as claimed in claim 9, wherein the divalent group is an O-releasing type group or an S-releasing type group and each group contains a total number of the carbon atoms of not more than 12.

Claim 14

Dependent Claim 40 words

A heat-developable color photographic material as claimed in claim 1, wherein the dye portion represented by D includes an azo dye, an azomethine dye, an anthraquinone dye, a naphthoquinone dye, a styryl dye, a quinophthalone dye or a phthalocyanine dye.

Claim 15

Dependent Claim 141 words

A heat-developable color photographic material as claimed in claim 12, wherein the dye included in the dye portion represented by D is represented by the following general formulae: ##STR18## PG,111 wherein R 1 to R 6 independently represent a hydrogen atom or a substituent selected from the group consisting of an alkyl group, a cycloalkyl group, an aralkyl group, an alkoxy group, an aryloxy group, an aryl group, an acylamino group, an acyl group, a cyano group, a hydroxy group, an alkylsulfonylamino group, an arylsulfonylamino group, an alkylsulfonyl group, a hydroxyalkyl group, a cyanoalkyl group, an alkoxycarbonylalkyl group, an alkoxyalkyl group, an aryloxyalkyl group, a nitro group, a halogen atom, a sulfamoyl group, an N-substituted sulfamoyl group, a carbamoyl group, an N-substituted carbamoyl group, an acyloxyalkyl group, an amino group, a substituted amino group, an alkylthio group and an arylthio group.

Claim 16

Dependent Claim 34 words

A heat-developable color photographic material as claimed in claim 1, wherein an amount of the dye releasing compound is from 0.01 mol to 4 mols per mol of the organic silver salt oxidizing agent.

Claim 17

Dependent Claim 31 words

A heat-developable color photographic material as claimed in claim 1, wherein the photographic silver halide is silver chloride, silver chlorobromide, silver chloroiodide, silver bromide, silver iodobromide, silver chloroiodobromide or silver iodide.

Claim 18

Dependent Claim 35 words

A heat-developable color photographic material as claimed in claim 1, wherein the photographic silver halide is present in a range from 0.005 mol to 5 mols per mol of the organic silver salt oxidizing agent.

Claim 19

Dependent Claim 25 words

A heat-developable color photographic material as claimed in claim 1, wherein the particle size of the silver halide is from 0.001 μm to 2 μm.

Claim 20

Dependent Claim 48 words

A heat-developable color photographic material as claimed in claim 1, wherein the organic silver salt oxidizing agent is a silver salt which forms silver by reacting with the reducing agent, when it is heated to a temperature of above 80° C. in the presence of exposed silver halide.

Claim 21

Dependent Claim 54 words

A heat-developable color photographic material as claimed in claim 1, wherein the organic silver salt oxidizing agent is a silver salt of an organic compound having a carboxy group, a silver salt of a compound containing a mercapto group or a thione group or a silver salt of a compound containing an imino group.

Claim 22

Dependent Claim 26 words

A heat-developable color photographic material as claimed in claim 1, wherein the photographic and the organic silver salt oxidizing agent are present in the same layer.

Claim 23

Dependent Claim 17 words

A heat-developable color photographic material as claimed in claim 1, wherein the binder is a hydrophilic colloid.

Claim 24

Dependent Claim 17 words

A heat-developable color photographic material as claimed in claim 1, wherein the binder is a hydrophobic polymer.

Claim 25

Dependent Claim 27 words

A heat-developable color photographic material as claimed in claim 1, wherein the hydrophobic polymer is polyvinyl butyral, polyvinyl acetate, ethyl cellulose, polymethyl methacrylate or cellulose acetate butyrate.

Claim 26

Dependent Claim 40 words

A heat-developable color photographic material as claimed in claim 1, wherein the support capable of receiving a released dye is composed of an organic high molecular weight compound having a glass transition temperature of from 40° C. to 250° C.

Claim 27

Dependent Claim 32 words

A heat-developable color photographic material as claimed in claim 1, wherein the organic high molecular weight compound in the layer has a glass transition temperature of from 40° C. to 250° C.

Claim 28

Dependent Claim 44 words

A heat-developable color photographic material as claimed in claim 1, wherein the reducing agent is a compound which is oxidized by the organic silver salt oxidizing agent to form an oxidized product capable of reacting with the dye releasing compound and releasing a dye.

Claim 29

Dependent Claim 29 words

A heat-developable color photographic material as claimed in claim 26, wherein the reducing agent is a color developing agent which is capable of forming an image upon oxidative coupling.

Claim 30

Dependent Claim 38 words

A heat-developable color photographic material as claimed in claim 27, wherein the color developing agent is a p-phenylenediamine type color developing agent, an aminophenol compound, an aminonaphthol compound, an aminohydroxypyrazole compound, an aminopyrazoline compound or a hydrazone compound.

Claim 31

Dependent Claim 21 words

A heat-developable color photographic material as claimed in claim 1, wherein the color photographic material further contains an auxiliary developing agent.

Claim 32

Dependent Claim 24 words

A heat-developable color photographic material as claimed in claim 1, wherein a color photographic material further contains a base or a base releasing agent.

Claim 33

Dependent Claim 20 words

A heat-developable color photographic material as claimed in claim 1, wherein the color photographic material further contains a diffusion accelerator.

Claim 34

Dependent Claim 20 words

A heat-developable color photographic material as claimed in claim 1, wherein the color photographic material further contains a thermal solvent.

Claim 35

Dependent Claim 28 words

A method of forming a color image as claimed in claim 2, wherein the heating is carried out at a temperature ranging from 80° C. to 250° C.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1988-03-25	1988-09-24	1989-03-26	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1992-03-25	1992-09-24	1993-03-26	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1996-03-25	1996-09-24	1997-03-26	$7700.00	Window Closed / Lapsed

Heat-developable color photographic material containing dye releasing couplers

Abstract

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