Inhibitor barrier layers for photographic materials

Claim 2

A photographic element comprising a support having at least one layer containing a silver halide emulsion and at least one layer containing a development inhibitor scavenger, and wherein no acid dye or acid dye precursor is present, the improvement wherein said development inhibitor scavenger is a crosslinked polymer comprising units represented by the formula: ##STR19##wherein A is a polymerized monomer containing at least two ethylenically unsaturated groups; B is a polymerized copolymerizable α, β-ethylenically unsaturated monomer; Q is N or P; R 1 , r 2 and R 3 are independently selected from the group consisting of carbocyclic, alkyl, aryl and aralkyl and wherein R 1 , R 2 and R 3 can, together with Q, form a heterocyclic ring; M - is an anion; x is from about 0.25 to about 5 mole percent; y is from about 0 to about 90 mole percent; and z is from about 10 to about 99 mole percent.

Claim 3

The photographic element of claim 1 wherein x is from 1.0 to 5.0 mole percent, y is from 0 to 45 mole percent and z is 40 to 99 mole percent.

Claim 4

The photographic element of claim 1 wherein Q is N.

Claim 5

The photographic element of claim 1 wherein A is a unit of divinylbenzene monomer.

Claim 6

The photographic element of claim 1 wherein R 1 , R 2 and R 3 are each alkyl or aralkyl.

Claim 7

The photographic element of claim 1 wherein the layer containing the silver halide emulsion also contains the development inhibitor scavenger.

Claim 8

The photographic element of claim 1 wherein at least one layer contains a development inhibitor anion or development inhibitor release agent.

Claim 9

The photographic element of claim 1 wherein the polymer comprises units represented by the formula ##STR20##wherein M - is an anion; x is from about 0.25 to about 5.0 mole percent; y is from about 0 to about 90 mole percent; and z is from about 10 to about 99 mole percent.

Claim 10

A process for forming a visible photographic image comprising developing an exposed photographic element wherein no acid dye or acid dye precursor is present, said element comprising a support and a photogtaphic silver halide emulsion layer and integral with said photographic element, a development inhibitor scavenger comprising a crosslinked polymer comprising units represented by the formula: ##STR21##wherein A is a polymerized monomer containing at least two ethylenically unsaturated groups; B is a polymerized copolymerizable α,β-ethylenically unsaturated monomer; Q is N or P; R 1 , r 2 and R 3 are independently selected from the group consisting of carbocyclic, alkyl, aryl and aralkyl and wherein R 1 , R 2 and R 3 can, together with Q, form a heterocyclic ring; M - is an anion; x is from about 0.25 to about 5 mole percent; y is from about 0 to about 90 mole percent; and z is from about 10 to about 99 mole percent.

Claim 11

A process for forming a visible photographic image comprising developing an exposed photographic element wherein no acid dye or acid dye precursor is present, said element comprising a support and a photogtaphic silver halide emulsion layer and integral with said photographic element, a development inhibitor scavenger comprising a crosslinked polymer comprising units represented by the formula: ##STR21##wherein A is a polymerized monomer containing at least two ethylenically unsaturated groups; B is a polymerized copolymerizable α,β-ethylenically unsaturated monomer; Q is N or P; R 1 , r 2 and R 3 are independently selected from the group consisting of carbocyclic, alkyl, aryl and aralkyl and wherein R 1 , R 2 and R 3 can, together with Q, form a heterocyclic ring; M - is an anion; x is from about 0.25 to about 5 mole percent; y is from about 0 to about 90 mole percent; and z is from about 10 to about 99 mole percent.

Claim 12

The process of claim 9 wherein the photographic element contains at least one layer containing a development inhibitor anion or development inhibitor release agent.

Claim 13

The process of claim 9 wherein the developing solution used to develop the exposed photographic element contains a development inhibitor release agent.

Claim 14

The process of claim 11 wherein said development inhibitor released is 5,6-dichlorobenzotriazole.

Claim 15

The process of claim 9 wherein x is from 1.0 to 5.0 mole percent, y is from 0 to 45 mole percent and z is 40 to 99 mole percent.

Claim 16

The process of claim 9 wherein x is from 1.0 to 5.0 mole percent, y is from 0 to 45 mole percent and z is 40 to 99 mole percent.

Claim 17

The process of claim 9 wherein Q is N.

Claim 18

The process of claim 9 wherein A is a unit of divinylbenzene monomer.

Claim 19

The process of claim 9 wherein the polymer comprises units represented by the formula: ##STR22##wherein M - is an anion; x is from about 0.25 to about 5.0 mole percent; y is from about 0 to about 90 mole percent; and z is from about 10 to about 99 mole percent.

Claim 20

A multilayer color photographic element wherein no acid dye or acid dye precursor is present, said element comprising a support having thereon at least (1) a red-sensitive coupler-containing silver halide emulsion layer, (2) a green-sensitive coupler-containing emulsion layer, (3) a blue-sensitive coupler-containing layer and (4) a layer containing a crosslinked polymer which comprises units represented by the formula ##STR23##wherein A is a polymerized monomer containing at least two ethylenically unsaturated groups; B is a polymerized copolymerizable α,β-ethylenically unsaturated monomer; Q is N or P; R 1 , r 2 and R 3 are independently selected from the group consisting of carbocyclic, alkyl, aryl and aralkyl and wherein R 1 , R 2 and R 3 can, together with Q, form a heterocyclic ring; M is an anion; x is from about 0.25 to about 5 mole percent; y is from about 0 to about 90 mole percent; and z is from about 10 to about 99 mole percent.

Claim 21

A multilayer color photographic element wherein no acid dye or acid dye precursor is present, said element comprising a support having thereon at least (1) a red-sensitive coupler-containing silver halide emulsion layer, (2) a green-sensitive coupler-containing emulsion layer, (3) a blue-sensitive coupler-containing layer and (4) a layer containing a crosslinked polymer which comprises units represented by the formula ##STR23##wherein A is a polymerized monomer containing at least two ethylenically unsaturated groups; B is a polymerized copolymerizable α,β-ethylenically unsaturated monomer; Q is N or P; R 1 , r 2 and R 3 are independently selected from the group consisting of carbocyclic, alkyl, aryl and aralkyl and wherein R 1 , R 2 and R 3 can, together with Q, form a heterocyclic ring; M is an anion; x is from about 0.25 to about 5 mole percent; y is from about 0 to about 90 mole percent; and z is from about 10 to about 99 mole percent.

Claim 22

The element of claim 18 wherein at least one layer contains a development inhibitor anion or development inhibitor release agent.