Colored image formation from maleimide copolymers

Claim 2

A process of forming a colored image which comprises treating a film comprising at least one copolymer of a first vinyl monomer corresponding to the formula: ##STR3## wherein R is selected from the group consisting of hydrogen and monovalent organic groups; and a second vinyl monomer which has a radical capable of forming a stable anion directly attached to at least one carbon of the carbon-carbon double bond; with an imagewise distribution of a base selected from the group consisting of ammonia and organic amines whose basic ionization constant is at least as large as that of ammonia.

Claim 3

A process as defined in claim 1 wherein R is selected from the group consisting of hydrogen and monovalent aliphatic organic groups, the atom of said radical directly attached to at least one carbon of said carbon-carbon double bond of said second vinyl monomer is selected from the group consisting of oxygen, nitrogen, halogen and sulfur, and said base is selected from the group consisting of ammonia and organic aliphatic amines whose basic ionization constant is at least as large as that of ammonia.

Claim 4

A process of forming a colored image which comprises: (a) forming a film comprising: (1) at least one copolymer of a first vinyl monomer corresponding to the formula: ##STR4## wherein R is selected from the group consisting of hydrogen and monovalent organic groups, and a second vinyl monomer which has a radical capable of forming a stable anion directly attached to at least one carbon of the carbon-carbon double bond; and (2) an amine salt which is capable of liberating a free amine upon heating, said free amine having a basic ionization constant at least as large as that of ammonia; and (b) heating said film whereby said amine is liberated and reacts with said copolymer in said film thereby forming said colored image.

Claim 5

A process of forming a colored image which comprises: (a) forming a film comprising: (1) at least one copolymer of a first vinyl monomer corresponding to the formula: ##STR4## wherein R is selected from the group consisting of hydrogen and monovalent organic groups, and a second vinyl monomer which has a radical capable of forming a stable anion directly attached to at least one carbon of the carbon-carbon double bond; and (2) an amine salt which is capable of liberating a free amine upon heating, said free amine having a basic ionization constant at least as large as that of ammonia; and (b) heating said film whereby said amine is liberated and reacts with said copolymer in said film thereby forming said colored image.

Claim 6

A process of forming a colored image by diffusion transfer which comprises, in combination, the steps of: (a) exposing a photographic film unit which comprises a plurality of layers including a support layer carrying a photosensitive silver halide layer having associated therewith a compound capable of providing, as a function of silver halide development, an imagewise distribution of an image-forming material, said compound being processing composition soluble and diffusible as a function of the point-to-point degree of exposure of said silver halide layer, and comprising an organic amine whose basic ionization constant is at least as large as that of ammonia, attached to a silver halide developing moiety; (b) contacting said photographic film unit with an aqueous alkaline processing composition forming thereby an imagewise distribution of diffusible image-forming material as a function of the point-to-point degree of emulsion exposure; and (c) transferring, by diffusion, at least a portion of said imagewise distribution of diffusible image-forming material to a layer comprising a copolymer of a first vinyl monomer corresponding to the formula ##STR5## wherein R is selected from the group consisting of hydrogen and monovalent organic groups, and a second vinyl monomer which has a radical capable of forming a stable anion directly attached to at least one carbon of the carbon-carbon double bond.

Claim 7

A process of forming a colored image by diffusion transfer which comprises, in combination, the steps of: (a) exposing a photographic film unit which comprises a plurality of layers including a support layer carrying a photosensitive silver halide layer having associated therewith a compound capable of providing, as a function of silver halide development, an imagewise distribution of an image-forming material, said compound being processing composition soluble and diffusible as a function of the point-to-point degree of exposure of said silver halide layer, and comprising an organic amine whose basic ionization constant is at least as large as that of ammonia, attached to a silver halide developing moiety; (b) contacting said photographic film unit with an aqueous alkaline processing composition forming thereby an imagewise distribution of diffusible image-forming material as a function of the point-to-point degree of emulsion exposure; and (c) transferring, by diffusion, at least a portion of said imagewise distribution of diffusible image-forming material to a layer comprising a copolymer of a first vinyl monomer corresponding to the formula ##STR5## wherein R is selected from the group consisting of hydrogen and monovalent organic groups, and a second vinyl monomer which has a radical capable of forming a stable anion directly attached to at least one carbon of the carbon-carbon double bond.

Claim 8

A process as defined in claim 4 wherein R is selected from the group consisting of hydrogen and monovalent aliphatic organic groups, the atom of said radical directly attached to at least one carbon of said carbon-carbon double bond of said second vinyl monomer is selected from the group consisting of oyxgen, nitrogen, halogen and sulfur, and said amine is an organic aliphatic amine whose basic ionization constant is at least as large as that of ammonia.