Timing layer for color transfer film units comprising copolymer with activation energy to penetration greater than 18 kcal/mole

Claim 2

A photographic element containing a support having coated thereon, in order, a neutralizing layer and a temporary barrier layer, said barrier comprising a layer comprising a polymeric latex and having an activation energy of penetration from aqueous alkaline solution of greater than 18 kcal/mole, said polymeric latex comprising a polymer comprising from about 5 to about 35 percent by weight of polymerized ethylenically unsaturated monomer, from about 2 to about 10 percent by weight of polymerized ethylenically unsaturated carboxylic acid, and from about 55 to about 85 percent by weight of polymerized vinylidene chloride.

Claim 3

The element of claim 1 wherein the polymeric latex comprises from about 5 to about 35 percent by weight of acrylonitrile, from about 2 to about 10 percent by weight of a member selected from the group consisting of acrylic acid and itaconic acid and from about 55 to about 85 percent by weight of vinylidene chloride.

Claim 4

In a photographic film unit comprising: a. a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material; b. a dye image-receiving layer; c. means for discharging an alkaline processing composition within said film unit; d. a neutralizing layer for neutralizing said alkaline processing composition; and e. a barrier layer located between said photosensitive silver halide emulsion layer and said neutralizing layer and which is permeable by said alkaline processing composition after a predetermined time; said film unit containing a silver halide developing agent, the improvement wherein said barrier comprises a latex comprising a terpolymer having from about 5 to about 35 percent by weight of polymerized ethylenically unsaturated monomer, from about 2 to about 10 percent by weight of polymerized ethylenically unsaturated carboxylic acid and from about 55 to about 85 percent by weight of polymerized vinylidene chloride.

Claim 5

In a photographic film unit comprising: a. a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material; b. a dye image-receiving layer; c. means for discharging an alkaline processing composition within said film unit; d. a neutralizing layer for neutralizing said alkaline processing composition; and e. a barrier layer located between said photosensitive silver halide emulsion layer and said neutralizing layer and which is permeable by said alkaline processing composition after a predetermined time; said film unit containing a silver halide developing agent, the improvement wherein said barrier comprises a latex comprising a terpolymer having from about 5 to about 35 percent by weight of polymerized ethylenically unsaturated monomer, from about 2 to about 10 percent by weight of polymerized ethylenically unsaturated carboxylic acid and from about 55 to about 85 percent by weight of polymerized vinylidene chloride.

Claim 6

The photographic film unit of claim 3 wherein: a. said dye image-receiving layer is located between said support and said silver halide emulsion layer and b. said film unit also includes a transparent cover sheet over the layer outermost from said support.

Claim 7

The film unit of claim 4 wherein said transparent cover sheet contains, in order, said neutralizing layer and said barrier layer.

Claim 8

The film unit of claim 4 wherein said discharging means is a rupturable container containing said alkaline processing composition and an opacifying agent, said container being so positioned during processing of said film unit that a compressive force applied to said container will effect a discharge of the container's contents between said cover sheet and the outermost layer of said photosensitive element.

Claim 9

The film unit of claim 3 wherein said dye image-receiving layer is located on one support and said photosensitive silver halide emulsion layer is located on another support.

Claim 10

The film unit of claim 3 comprising: a. a photosensitive element comprising a support having thereon the following layers in sequence: a red-sensitive silver halide emulsion layer having a cyan dye image-providing material associated therewith, a green-sensitive silver halide emulsion layer having a magenta dye image-providing material associated therewith, and a blue-sensitive silver halide emulsion layer having a yellow dye image-providing material associated therewith; b. a dye image-receiving element superposed over said blue-sensitive silver halide emulsion layer and comprising a transparent support coated with said neutralizing layer, said barrier layer and said dye image-receiving layer; and c. a rupturable container containing said alkaline processing composition and a reflecting agent, said container being so positioned during processing of said film unit that a compressive force applied to said container will effect a discharge of the container's contents between said image-receiving element and said blue-sensitive silver halide emulsion layer.

Claim 11

The film unit of claim 8 wherein each said dye image-providing material is a redox dye releaser.

Claim 12

The film unit of claim 8 wherein each said silver halide emulsion is a direct-positive silver halide emulsion.

Claim 13

The film unit of claim 3 wherein said ethylenically unsaturated monomer is acrylonitrile.

Claim 14

The film unit of claim 3 wherein said ethylenically unsaturated carboxylic acid is acrylic acid.

Claim 15

The film unit of claim 3 wherein said ethylenically unsaturated carboxylic acid is itaconic acid.

Claim 16

The film unit of claim 3 wherein said discharging means is a rupturable container containing said alkaline processing composition and an opacifying agent, said container being so positioned during the processing of said film unit that a compressive force applied to said container will effect a discharge of the container's contents between said support and the outermost layer of said photosensitive element.

Claim 17

The film unit of claim 3 comprising: a. a photosensitive element comprising a transparent support having thereon the following layers in sequence: an image-receiving layer; an alkaline solution-permeable, light-reflective layer; an alkaline solution-permeable, opaque layer; a red-sensitive silver halide emulsion layer having a ballasted redox cyan dye releaser associated therewith; a green-sensitive silver halide emulsion layer having a ballasted redox magenta dye releaser associated therewith; and a blue-sensitive silver halide emulsion layer having a ballasted redox yellow dye releaser associated therewith; b. a transparent sheet superposed over said blue-sensitive silver halide emulsion layer and comprising a transparent support coated with said neutralizing layer and said barrier layer; and c. a rupturable container containing said alkaline processing composition and an opacifying agent, said container being so positioned during processing of said film unit that a compressive force applied to said container will effect a discharge of the container's contents between said transparent sheet and said blue-sensitive silver halide emulsion layer.

Claim 18

The film unit of claim 15 wherein each said redox dye releaser is a ballasted sulfonamido compound which is alkali-cleavable upon oxidation to release a diffusible sulfonamido color-providing moiety from a benzene nucleus, said compound having the formula: ##STR9## wherein: a. Col is a dye or dye precursor moiety; b. Ball is an organic ballasting group which renders said compound nondiffusible in a photographic element during development in an alkaline processing composition; c. Y represents the carbon atoms necessary to complete a benzene or naphthalene nucleus; and d. G is OR or NHR 1 wherein R is hydrogen or a hydrolyzable moiety and R 1 is hydrogen or an alkyl group of 1 to 22 carbon atoms.

Claim 19

The film unit of claim 15 wherein each said silver halide emulsion is a direct-positive silver halide emulsion.

Claim 20

The film unit of claim 3 wherein said dye image-receiving layer is located on a separate transparent support superposed over the layer outermost from an opaque support having thereon said photosensitive silver halide emulsion layer.

Claim 21

In a photographic film unit comprising: a. a transparent support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material; b. a dye image-receiving layer located between said transparent support and said silver halide emulsion layer; c. means for discharging an alkaline processing composition within said film unit; d. a neutralizing layer for neutralizing said alkaline processing composition; and e. a timing layer located between said neutralizing layer and said silver halide emulsion layer, said timing layer being permeable by said alkaline processing composition after a predetermined time; said film unit containing a silver halide developing agent, the improvement wherein said timing layer comprises a polymeric latex comprising from about 5 to about 35 percent by weight of acrylonitrile, from about 2 to about 10 percent by weight of a member selected from the group consisting of itaconic acid and acrylic acid and from about 55 to about 85 percent by weight of vinylidene chloride.

Claim 22

In a photographic film unit comprising: a. a transparent support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material; b. a dye image-receiving layer located between said transparent support and said silver halide emulsion layer; c. means for discharging an alkaline processing composition within said film unit; d. a neutralizing layer for neutralizing said alkaline processing composition; and e. a timing layer located between said neutralizing layer and said silver halide emulsion layer, said timing layer being permeable by said alkaline processing composition after a predetermined time; said film unit containing a silver halide developing agent, the improvement wherein said timing layer comprises a polymeric latex comprising from about 5 to about 35 percent by weight of acrylonitrile, from about 2 to about 10 percent by weight of a member selected from the group consisting of itaconic acid and acrylic acid and from about 55 to about 85 percent by weight of vinylidene chloride.

Claim 23

In a process of producing a photographic transfer image in color comprising: a. imagewise exposing a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material, a receiving layer and a barrier layer associated with a neutralizing layer being permeable by said alkaline processing composition and which is located between said photosensitive silver halide emulsion layer and said neutralizing layer to light; b. treating said element with an alkaline processing composition in the presence of a silver halide developing agent to effect development of each of said exposed silver halide emulsion layers; i. an imagewise distribution of dye image-producing material being so formed as a function of development and ii. at least a portion of said imagewise distribution of dye image-providing material diffusing to said dye image-receiving layer; and c. neutralizing said alkaline processing composition by means of said neutralizing layer associated with said photographic element; said film unit containing a silver halide developing agent, the improvement wherein said barrier layer comprises a polymeric latex having an activation energy to penetration from aqueous alkaline solution of greater than 18 kcal/mole, said polymeric latex comprising a polymer comprising from about 5 to about 35 percent by weight of polymerized ethylenically unsaturated monomer, from about 2 to about 10 percent by weight of polymerized ethylenically unsaturated carboxylic acid, and from about 55 to about 85 percent by weight of polymerized vinylidene chloride.

Claim 24

In a process of producing a photographic transfer image in color comprising: a. imagewise exposing a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material, a receiving layer and a barrier layer associated with a neutralizing layer being permeable by said alkaline processing composition and which is located between said photosensitive silver halide emulsion layer and said neutralizing layer to light; b. treating said element with an alkaline processing composition in the presence of a silver halide developing agent to effect development of each of said exposed silver halide emulsion layers; i. an imagewise distribution of dye image-producing material being so formed as a function of development and ii. at least a portion of said imagewise distribution of dye image-providing material diffusing to said dye image-receiving layer; and c. neutralizing said alkaline processing composition by means of said neutralizing layer associated with said photographic element; said film unit containing a silver halide developing agent, the improvement wherein said barrier layer comprises a polymeric latex having an activation energy to penetration from aqueous alkaline solution of greater than 18 kcal/mole, said polymeric latex comprising a polymer comprising from about 5 to about 35 percent by weight of polymerized ethylenically unsaturated monomer, from about 2 to about 10 percent by weight of polymerized ethylenically unsaturated carboxylic acid, and from about 55 to about 85 percent by weight of polymerized vinylidene chloride.

Claim 25

In a dye image-receiving element comprising a support having thereon, in order, a neutralizing layer, a timing layer and a dye image-receiving layer, the improvement comprising employing as said timing layer a terpolymer latex comprising from about 5 to about 35 percent by weight of polymerized ethylenically unsaturated monomer, from about 2 to about 10 percent by weight of polymerized ethylenically unsaturated carboxylic acid and from about 55 to about 85 percent by weight of polymerized vinylidene chloride.

Claim 26

In a dye image-receiving element comprising a support having thereon, in order, a neutralizing layer, a timing layer and a dye image-receiving layer, the improvement comprising employing as said timing layer a terpolymer latex comprising from about 5 to about 35 percent by weight of polymerized ethylenically unsaturated monomer, from about 2 to about 10 percent by weight of polymerized ethylenically unsaturated carboxylic acid and from about 55 to about 85 percent by weight of polymerized vinylidene chloride.

Claim 27

In a cover sheet for use with a color diffusion transfer assemblage comprising a transparent support having thereon, in order, a neutralizing layer and a timing layer, the improvement comprising said timing layer comprising a terpolymer latex comprising from about 5 to about 35 percent by weight of polymerized ethylenically unsaturated monomer, from about 2 to about 10 percent by weight of polymerized ethylenically unsaturated carboxylic acid and from about 55 to about 85 percent by weight of polymerized vinylidene chloride.

Claim 28

In a cover sheet for use with a color diffusion transfer assemblage comprising a transparent support having thereon, in order, a neutralizing layer and a timing layer, the improvement comprising said timing layer comprising a terpolymer latex comprising from about 5 to about 35 percent by weight of polymerized ethylenically unsaturated monomer, from about 2 to about 10 percent by weight of polymerized ethylenically unsaturated carboxylic acid and from about 55 to about 85 percent by weight of polymerized vinylidene chloride.