Shirleyanne E. Haye - Rochester NY Janet M. Huston - Webster NY Charles M. Darmon - Spencerport NY Paul A. Schwartz - Webster NY William G. Henry - Caledonia NY
Assignee:
Eastman Kodak Company - Rochester NY
International Classification:
G03C 7407
US Classification:
430357, 430434
Abstract:
A color developing composition is stable in the presence of calcium ion because of the presence of two specific types of polyphosphonic acid sequestering agents. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The mixture of sequestering agents includes a polyaminopolyphosphonic acid and either a hydroxyalkylidenediphosphonic acid or morpholinomethanediphosphonic acid. The composition can be used to provide images in various color photographic silver halide materials.
Calcium Ion Stable Photographic Color Developing Composition And Method Of Use
Shirleyanne E. Haye - Rochester NY Janet M. Huston - Webster NY Charles M. Darmon - Spencerport NY Paul A. Schwartz - Webster NY William G. Henry - Caledonia NY
Assignee:
Eastman Kodak Company - Rochester NY
International Classification:
G03C 7413
US Classification:
430466, 430465, 430491
Abstract:
A color developing composition is stable in the presence of calcium ion because of the presence of two specific types of polyphosphonic acid sequestering agents. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The mixture of sequestering agents includes a polyaminopolyphosphonic acid and either a hydroxyalkylidenediphosphonic acid or morpholinomethanediphosphonic acid. The composition can be used to provide images in various color photographic silver halide materials.
Ascorbic Acid Developing Compositions Stabilized With Sulfo Compound And Methods Of Use
Shirleyanne E. Haye - Rochester NY Janet M. Huston - Webster NY John S. Badger - Webster NY Jacques Roussilhe - Virey leGrand, FR
Assignee:
Eastman Kodak Company - Rochester NY
International Classification:
G03C 530
US Classification:
430490, 430440, 430483
Abstract:
A black-and-white photographic developing composition has improved stability and is more compatible with the environment when discarded. The composition includes one or more ascorbic acid developing agents and a preservative (such as a sulfite) and is essentially free of hydroquinone and similar developing agents. Improved stability is provided using a sulfo-substituted organic compound as a stabilizing agent. Such compounds are either aliphatic sulfo compounds or hydroxy-free aromatic sulfo compounds.
Stabilized Ascorbic Acid Developing Compositions And Methods Of Use
Shirleyanne E. Haye - Rochester NY Janet M. Huston - Webster NY Jacques Roussilhe - Virey Le Grand, FR Hugh G. McGuckin - Rochester NY
Assignee:
Eastman Kodak Company - Rochester NY
International Classification:
G03C 529
US Classification:
430480, 430403, 430440, 430441, 430483
Abstract:
A black-and-white photographic developing composition has improved stability and is more compatible with the environment when discarded. The composition includes one or more ascorbic acid developing agents and a preservative (such as a sulfite) and is essentially free of hydroquinone and similar developing agents. It comprises an -ketocarboxylic acid stabilizing agent at a molar ratio to the ascorbic acid developing agent of from about 0. 05:1 to about 2. 5:1, and at a molar ratio to the preservative of from about 0. 05:1 to about 6. 25:1.
Calcium Ion Stable Photographic Color Developing Composition And Method Of Use
Shirleyanne E. Haye - Rochester NY Janet M. Huston - Webster NY William G. Henry - Caledonia NY
Assignee:
Eastman Kodak Company - Rochester NY
International Classification:
G03C 7413
US Classification:
430491, 430465
Abstract:
A color developing composition is stable in the presence of calcium ion because of the presence of a specific polyphosphonic acid sequestering agent. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The calcium ion sequestering agent is morpholinomethanediphosphonic acid or a salt thereof. This sequestering agent can be used alone to control calcium ion precipitates, or in combination with a polyaminopolyphonic acid or salt thereof. The composition can be used to provide images in various color photographic silver halide materials.
Three-Part Concentrated Photographic Color Developing Kit And Methods Of Use
Shirleyanne E. Haye - Rochester NY Janet M. Huston - Webster NY
Assignee:
Eastman Kodak Company - Rochester NY
International Classification:
G03E 7413
US Classification:
430466
Abstract:
A three-part color developing kit includes (I) a first concentrated aqueous solution having a pH of from about 11 to about 13. 5 and comprising at least 0. 25 mol/l of sulfite ions, at least 2. 5Ã10 mol/l of iodide ions, at least 0. 05 mol/l of bromide ions, and at least 0. 5 mol/l of a buffer having a pKa of from about 11 to about 13. 5, (II) a second concentrated aqueous solution having a pH of from about 3 to about 6 and comprising at least 1 g/l of a vinyl pyrrolidone polymer, and at least 0. 05 mol/l of an organic antioxidant, and a third concentrated aqueous solution having a pH of from about 1 to about 3 and comprising at least 0. 05 mol/l of a color developing agent, and at least 0. 005 mol/l of sulfite ions.
Odorless Photographic Fixing Composition And Method Of Use
Shirleyanne E. Haye - Rochester NY Janet M. Huston - Webster NY Therese M. Feller - Rochester NY Eric R. Schmittou - Rochester NY
Assignee:
Eastman Kodak Company - Rochester NY
International Classification:
G03C 538
US Classification:
430455
Abstract:
A photographic fixing composition has reduced odor and improved storage stability. It comprises a thiosulfate fixing agent, sulfite ions, and a phthalic acid or salt thereof. This fixing composition can be used in various photographic processing protocols to provide color images from color photographic silver halide materials.
Stable Multi-Part Photographic Color Developing Composition And Method Of Use
Shirleyanne E. Haye - Rochester NY Janet M. Huston - Webster NY
Assignee:
Eastman Kodak Company - Rochester NY
International Classification:
G03C 7413
US Classification:
430490
Abstract:
A multi-part (two-part or three-part) color developing kit includes aqueous solutions containing sulfite ions and a color developing agent. An -ketocarboxylic acid or salt thereof, such as pyruvic acid or a salt thereof, is included in one or more of the aqueous solutions. These solutions can be combined, with or without dilution, to provide a color developing composition that can be used to process color photographic materials.
As men and women prepared for the protest, Janet Huston, 62, of Des Moines said she was there for two reasons. The first: to honor the memory of her closest childhood friend, who was gay and committed suicide eight years ago the day before his birthday after years of bullying and bigotry. Second: he