Photographic materials and processes

Claim 2

A light-sensitive photographic emulsion comprising converted-halide silver halide grains, the halide of said grains containing at least 80 mole percent bromide and up to 5 mole percent iodide, any remaining halide in said grains being chloride; the surface of said grains being chemically sensitized with at least one chemical sensitizer selected from the group consisting of a sulfur sensitizer, a noble metal sensitizer, a reduction sensitizer and a selenium sensitizer; and, said emulsion containing a photographic color coupler selected from the group consisting of an open-chain ketomethylene color coupler, a 5-pyrazolone color coupler, and a phenolic color coupler.

Claim 3

A light-sensitive photographic emulsion comprising converted-halide silver chlorobromide grains dispersed in gelatin, the halide of said grains consisting essentially of about 10 mole percent chloride and 90 mole percent bromide; the surface of said grains being chemically sensitized with about 20 milligrams sodium thiosulfate pentahydrate per mole of silver; and, said emulsion containing the phenolic color coupler 2-( Alpha -( 2,4-di-tert-amylphenoxy)butyramido)-4,6-dichloro-5-methylphenol.

Claim 4

A photographic element comprising a support having coated thereon at least one light-sensitive photographic emulsion layer comprising converted-halide silver halide grains, the halide of said grains containing at least 50 mole percent bromide and up to 10 mole percent iodide, any remaining halide being chloride; the surface of said grains being chemically sensitized; and, said emulsion layer having a photographic color coupler contiguous to said silver halide grains.

Claim 5

A photographic element comprising a support having coated thereon at least one light-sensitive photographic emulsion layer comprising converted-halide silver halide grains, the halide of said grains containing at least 80 mole percent bromide and up to 5 mole percent iodide, any remaining halide being chloride; the surface of said grains being chemically sensitized; and, said emulsion layer having a photographic color coupler contiguous to said silver halide grains.

Claim 6

A photographic element comprising a support having coated thereon at least one light-sensitive photographic emulsion layer comprising converted-halide silver halide grains, the halide of said grains containing at least 80 mole percent bromide and up to 5 mole percent iodide, any remaining halide being chloride; the surface of said grains being chemically sensitized with at least one chemical sensitizer selected from the group consisting of a sulfur sensitizer, a noble metal sensitizer, a reduction sensitizer and a labile selenium sensitizer.

Claim 7

A photographic element comprising a support having coated thereon at least three superposed hydrophilic colloid layers containing light-sensitive silver halide grains, said layers being differentially sensitive to red, green and blue radiation, said layers having contiguous to the silver halide thereof, respectively, cyan, magenta and yellow dye-forming photographic color couplers; the silver halide grains in at least one of said silver halide emulsions comprising converted-halide silver halide grains, the halide of said grains containing at least 50 mole percent bromide and up to 10 mole percent iodide, any remaining halide being chloride, the surface of said converted-halide grains being chemically sensitized.

Claim 8

A photographic element comprising a support having coated thereon at least three superposed hydrophilic colloid layers containing light-sensitive silver halide grains, said layers being differentially sensitive to red, green and blue radiation, said layers having contiguous to the silver halide thereof, respectively, cyan, magenta and yellow dye-forming photographic color couplers; the silver halide grains in at least one of said silver halide eMulsions comprising converted-halide silver halide grains, the halide of said grains containing at least 80 mole percent bromide and up to 5 mole percent iodide, any remaining halide being chloride, the surface of said converted-halide grains being chemically sensitized with a chemical sensitizer from the group consisting of a sulfur sensitizer, a noble metal sensitizer, a reduction sensitizer and a selenium sensitizer.

Claim 9

The photographic element as defined in claim 9 wherein said photographic color couplers are incorporated in the emulsion layers; said red-sensitive emulsion layer contains a phenolic cyan dye-forming photographic color coupler; said green-sensitive emulsion layer contains a 5-pyrazolone photographic color coupler; and, said blue-sensitive emulsion layer contains an open-chain ketomethylene photographic color coupler.

Claim 10

A photographic element comprising a support having coated thereon at least three superposed hydrophilic colloid layers containing light-sensitive silver halide grains, said layers being differentially sensitive to red, green and blue radiation, said layers having incorporated therein, respectively, cyan, magenta and yellow dye-forming photographic color couplers; the light-sensitive silver halide in each of said layers comprising converted-halide silver halide grains, the halide of said grains containing at least 50 mole percent bromide and up to 10 mole percent iodide, any remaining halide being chloride; and, the surface of said grains being chemically sensitized.

Claim 11

A photographic element comprising a support having coated thereon at least three superposed hydrophilic colloid layers containing light-sensitive silver halide grains, said layers being differentially sensitive to red, green and blue radiation, said layers having incorporated therein, respectively, cyan, magenta and yellow dye-forming photographic color couplers; the light-sensitive silver halide in each of said layers comprising converted-halide silver halide grains, the halide of said grains containing at least 80 mole percent bromide and up to 5 mole percent iodide, any remaining halide being chloride; and, the surface of said grains being chemically sensitized with at least one chemical sensitizer selected from the group consisting of a sulfur sensitizer, a noble metal sensitizer, a reduction sensitizer and a selenium sensitizer; said emulsion layers being arranged with the green-sensitive layer between the red- and blue-sensitive emulsion layers, and the blue-sensitive emulsion layer being closest to the support.

Claim 12

A photographic element as defined in claim 12 having a hydrophilic colloid layer containing an ultraviolet absorber between the green- and red-sensitive emulsion layers.

Claim 13

A photographic element comprising a paper support having coated thereon, in the order given: a blue sensitive silver halide emulsion coated at a silver coverage of about 35 milligrams silver per square foot and about 155 milligrams gelatin per square foot, said layer containing about 35 milligrams per square foot of the cyan dye-forming coupler Alpha -(4-(4-benzyloxy-phenylsulfonyl)-phenoxy)- Alpha -pivalyl-2-chloro-5 ( gamma -(2,4-di-tert-amylphenoy)butyramido)-acetanilide; a gelatin interlayer; a green-sensitive silver halide emulsion coated at about 35 milligrams silver per square foot and about 155 milligrams gelatin per square foot, said layer containing about 35 milligrams per square foot of the magenta dye-forming coupler 1-(2,4,6-trichlorophenyl)-3-(2-chloro-5( Alpha - 4 -hydroxy-3-tert.butylphenoxy tetradecanoamido)-anilino)-5-pyrazolone; a gelatin interlayer containing about 65 mg. per square foot of the ultraviolet absorber 2-(2-hydroxy-3,5-di-tert-amyl-phenyl)benzotriazoLe; a red-sensitive gelatin silver halide emulsion coated at about 35 milligrams silver per square foot and about 155 milligrams gelatin per square foot, said layer containing about 35 milligrams per square foot of the cyan dye-forming coupler 2-( Alpha -(2,4-di-tert-amylphenoxy)butyramido)-4,6-dichloro-5-methylphenol; and, a gelatin overcoating; each of said emulsion layers consisting essentially of converted-halide silver halide grains, the halide of said grains containing about 10 mole percent chloride and about 90 mole percent bromide.

Claim 14

A process for providing color images in an exposed photographic element comprising a support having coated thereon a light-sensitive photographic emulsion comprising converted-halide silver halide grains, the halide of said grains containing at least 50 mole percent bromide and up to 10 mole percent iodide, any remaining halide being chloride; the surface of said grains being chemically sensitized; and, said silver halide grains having contiguous thereto a photographic color coupler; which comprises: developing said exposed photographic element with an aromatic primary amino color developing agent which reacts with said color coupler to form a dye.

Claim 15

A process for providing color images in an exposed photographic element comprising a support having coated thereon a light-sensitive photographic emulsion comprising converted-halide silver halide grains, the halide of said grains containing at least 80 mole percent bromide and up to 5 mole percent iodide, any remaining halide being chloride; the surface of said grains being chemically sensitized with a chemical sensitizer selected from the group consisting of a sulfur sensitizer, a noble metal sensitizer, a reduction sensitizer and a selenium sensitizer; and, said silver halide grains having contiguous thereto a photographic color coupler selected from the group consisting of a 5-pyrazolone, a phenolic and an open-chain ketomethylene photographic color coupler; which comprises: developing said exposed photographic element with a p-phenylenediamine color developing agent which reacts with said color coupler to form a dye; and, removing silver halide and silver image from said element.

Claim 16

A process for providing color images in an exposed photographic element comprising a support having coated thereon at least three superposed hydrophilic colloid layers containing light-sensitive silver halide grains, said layers being differentially sensitive to red, green and blue radiation, said layers having incorporated therein, respectively, cyan, magenta and yellow dye-forming photographic color couplers; the light-sensitive silver halide in each of said layers comprising converted-halide silver halide grains, the halide of said grains containing at least 50 mole percent bromide and up to 10 mole percent iodide, any remaining halide being chloride; and, the surface of said grains being chemically sensitized; which comprises: developing said exposed photographic element with an aromatic primary amino color developing agent which reacts with said color coupler to form a dye; and, removing silver halide and silver image by fixing and bleaching.

Claim 17

A process for providing color images in an exposed photographic element comprising a support having coated thereon at least three superposed hydrophilic colloid layers containing light-sensitive silver halide grains, said layers being differentially sensitive to red, green and blue radiation, said layers having incorporated therein, respectively, cyan, magenta and yellow dye-forming photographic color couplers; the light-sensitive silver halide in each of said layers comprising converted-halide silver halide grains, the halide of said grains containing at least 80 mole percent bromide and up to 5 mole percent iodide, any remaining halide beIng chloride; and, the surface of said grains being chemically sensitized with at least one chemical sensitizer; selected from the group consisting of a sulfur sensitizer, a noble metal sensitizer, a reduction sensitizer and a selenium sensitizer; said emulsion layers being arranged with the green-sensitive layer between the red- and blue-sensitive emulsion layers, and the blue-sensitive emulsion layer being closest to the support; which comprises: developing said exposed photographic element with an aromatic primary amino color developing agent which reacts with said color coupler to form a dye; and, removing silver halide and silver image from said element by fixing and bleaching.

Claim 18

A light-sensitive photographic emulsion as defined in claim 3 wherein said chemical sensitizer is selected from a sulfur sensitizer and a selenium sensitizer.

Claim 19

A light-sensitive photographic element as defined in claim 7 wherein said chemical sensitizer is selected from a sulfur sensitizer and a selenium sensitizer.

Claim 20

A light-sensitive photographic element as defined in claim 9 wherein said chemical sensitizer is selected from a sulfur sensitizer and a selenium sensitizer.

Claim 21

A light-sensitive photographic element as defined in claim 12 wherein said chemical sensitizer is selected from a sulfur sensitizer and a selenium sensitizer.

Claim 22

A process for providing color images as defined in claim 16 wherein said chemical sensitizer is selected from a sulfur sensitizer and a selenium sensitizer.

Claim 23

A process for providing color images as defined in claim 18 wherein said chemical sensitizer is selected from a sulfur sensitizer and a selenium sensitizer.