Patents by Inventor John W. Boettcher
John W. Boettcher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6919171Abstract: The present disclosure relates to aqueous dispersions of silver (carboxylate-azine toner) particles wherein the azine content of the particles is from about 0.01 to 10% by weight relative to silver carboxylate. The carboxylates are typically silver salts of long chain fatty acids and the azine toners are the compounds that function as development accelerators and toning agents such as phthalazine. These silver (carboxylate-azine) particles can be used to formulate imaging forming compositions that are useful in aqueous thermographic or photothermographic imaging elements.Type: GrantFiled: December 23, 2003Date of Patent: July 19, 2005Assignee: Eastman Kodak CompanyInventors: Mark Lelental, Peter J. Ghyzel, John W. Boettcher, James L. Wakley, David A. Dickinson, Joe E. Maskasky, Roger L. Klaus, Victor P. Scaccia, Thomas Blanton
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Publication number: 20040157177Abstract: The present disclosure relates to aqueous dispersions of silver (carboxylate-azine toner) particles wherein the azine content of the particles is from about 0.01 to 10% by weight relative to silver carboxylate. The carboxylates are typically silver salts of long chain fatty acids and the azine toners are the compounds that function as development accelerators and toning agents such as phthalazine. These silver (carboxylate-azine) particles can be used to formulate imaging forming compositions that are useful in aqueous thermographic or photothermographic imaging elements.Type: ApplicationFiled: December 23, 2003Publication date: August 12, 2004Inventors: Mark Lelental, Peter J. Ghyzel, John W. Boettcher, James L. Wakley, David A. Dickinson, Joe E. Maskasky, Roger L. Klaus, Victor P. Scaccia, Thomas Blanton
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Patent number: 6733959Abstract: Photothermographic materials prepared using aqueous formulations include silver halides that are chemically sensitized using certain tellurium-containing compounds. Such tellurium-containing chemical sensitizing compounds are generally provided in aqueous solution or in an aqueous solid particulate dispersion and can be represented by the following Structure I, II, or III: Te(L)m(X1)n (II) Pd(X2)2[Te(R′)2]2 (III) wherein X represents the same or different COR, CSR, CNRRa, CR, PRRa, or P(OR)2 groups, R and Ra are independently alkyl, alkenyl, or aryl groups, L is a ligand derived from a neutral Lewis base, X1 and X2 independently represent a halo, OCN, SCN, S2CNRRa, S2COR, S2CSR S2P(OR)2, S2PRRa, SeCN, TeCN, CN, SR, OR, alkyl, aryl, N3, or O2CR group, R′ is an alkyl or aryl group, p is 2 or 4, m is 0, 1, 2, or 4, and n is 2 or 4 provided that when m is 0 or 2, n is 2 or 4, and when m is 1 or 4, n is 2.Type: GrantFiled: August 6, 2001Date of Patent: May 11, 2004Assignee: Eastman Kodak CompanyInventors: Henry J. Gysling, David A. Dickinson, Mark Lelental, John W. Boettcher
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Patent number: 6692906Abstract: The present disclosure relates to aqueous dispersions of silver (carboxylate-azine toner) particles wherein the azine content of the particles is from about 0.01 to 10% by weight relative to silver carboxylate. The carboxylates are typically silver salts of long chain fatty acids and the azine toners are the compounds that function as development accelerators and toning agents such as phthalazine. These silver (carboxylate-azine) particles can be used to formulate imaging forming compositions that are useful in aqueous thermographic or photothermographic imaging elements.Type: GrantFiled: July 22, 2002Date of Patent: February 17, 2004Assignee: Eastman Kodak CompanyInventors: Mark Lelental, Peter J. Ghyzel, John W. Boettcher, James L. Wakley, David A. Dickinson, Joe E. Maskasky, Roger L. Klaus, Victor P. Scaccia, Thomas Blanton
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Patent number: 6690436Abstract: A light-modulating, electrically responsive privacy screen includes a transparent substrate and an electrically conductive layer formed over the substrate. The privacy screen further includes a light-modulating layer disposed over the electrically conductive layer and including at least one dispersable light-modulating material and coalescence limiting material into which the dispersible light-modulating material(s) is provided so that such dispersible light-modulating material coalesces to form a set domains having at least two optical states, the first optical state being present in the absence of an electrical field and the second being caused by the application of an electrical field and wherein one of the optical states cause the light-modulating layer to be transparent and the other optical state causes the light-modulating layer to restrict a user viewing through the privacy screen and thereby provide an appropriate level of privacy.Type: GrantFiled: January 21, 2003Date of Patent: February 10, 2004Assignee: Eastman Kodak CompanyInventors: Stanley W. Stephenson, John W. Boettcher, David J. Giacherio
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Patent number: 6690447Abstract: A method of making a liquid crystal display, comprising the steps of: providing a substrate; providing a first electrode over the substrate; coating the first electrode with aqueous dispersed material which when dried provides a dielectric layer over the first electrode; coating the dielectric layer with liquid crystal bearing material and drying such liquid crystal bearing material and providing a second electrode in contact with the dried liquid crystal bearing material.Type: GrantFiled: July 26, 2001Date of Patent: February 10, 2004Assignee: Eastman Kodak CompanyInventors: Stanley W. Stephenson, John I. Kilburn, John W. Boettcher, Thomas M. Smith
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Publication number: 20030133057Abstract: A light-modulating, electrically responsive privacy screen includes a transparent substrate and an electrically conductive layer formed over the substrate. The privacy screen further includes a light-modulating layer disposed over the electrically conductive layer and including at least one dispersable light-modulating material and coalescence limiting material into which the dispersible light-modulating material(s) is provided so that such dispersible light-modulating material coalesces to form a set domains having at least two optical states, the first optical state being present in the absence of an electrical field and the second being caused by the application of an electrical field and wherein one of the optical states cause the light-modulating layer to be transparent and the other optical state causes the light-modulating layer to restrict a user viewing through the privacy screen and thereby provide an appropriate level of privacy.Type: ApplicationFiled: January 21, 2003Publication date: July 17, 2003Inventors: Stanley W. Stephenson, John W. Boettcher, David J. Giacherio
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Patent number: 6585849Abstract: A method of making a liquid crystal display, including the steps of providing a substrate; providing a first electrode over the substrate; coating the first electrode with aqueous dispersed material which when dried provides a protective dielectric layer over the first electrode; coating the dielectric layer with liquid crystal bearing material and drying such liquid crystal bearing material, providing a second substrate having a second electrode, coating the second electrode with a dielectric adhesive layer; and laminating the coated second electrode to the liquid crystal bearing material by means of the dielectric adhesive material.Type: GrantFiled: July 26, 2001Date of Patent: July 1, 2003Assignee: Eastman Kodak CompanyInventors: Thomas M. Smith, Stanley W. Stephenson, John I. Kilburn, John W. Boettcher
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Patent number: 6556262Abstract: A light-modulating electrically responsive sheet including a substrate and electrically conductive layer formed over the substrate. The sheet further includes a light-modulating layer disposed over the electrically conductive layer and including at least one dispersible light-modulating material and coalescence limiting material into which the dispersible light-modulating material(s) is provided so that such dispersible light-modulating material coalesces to form a limited coalesced material having a set of domains each having a set of domains that exhibit different electrically responsive optical states.Type: GrantFiled: January 6, 2000Date of Patent: April 29, 2003Assignee: Eastman Kodak CompanyInventors: Stanley W. Stephenson, John W. Boettcher, David J. Giacherio
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Patent number: 6552762Abstract: A light-modulating, electrically responsive privacy screen includes a transparent substrate and an electrically conductive layer formed over the substrate. The privacy screen further includes a light-modulating layer disposed over the electrically conductive layer and including at least one dispersible light-modulating material and coalescence limiting material into which the dispersible light-modulating material(s) is provided so that such dispersible light-modulating material coalesces to form a set domains having at least two optical states, the first optical state being present in the absence of an electrical field and the second being caused by the application of an electrical field and wherein one of the optical states cause the light-modulating layer to be transparent and the other optical state causes the light-modulating layer to restrict a user viewing through the privacy screen and thereby provide an appropriate level of privacy.Type: GrantFiled: January 6, 2000Date of Patent: April 22, 2003Assignee: Eastman Kodak CompanyInventors: Stanley W. Stephenson, John W. Boettcher, David J. Giacherio
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Publication number: 20030073026Abstract: Photothermographic materials prepared using aqueous formulations include silver halides that are chemically sensitized using certain tellurium-containing compounds.Type: ApplicationFiled: August 6, 2001Publication date: April 17, 2003Applicant: Eastman Kodak CompanyInventors: Henry J. Gysling, David A. Dickinson, Mark Lelental, John W. Boettcher
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Patent number: 6548233Abstract: Aqueous-based thermally sensitive emulsions and imaging materials include two or more hindered phenol silver ion reducing agents in a non-crystalline reducing agent composition. Such compositions can be provided as evaporated dispersions and can be formulated in aqueous coating compositions to provide thermally developable materials such as thermographic and photothermographic materials.Type: GrantFiled: March 28, 2002Date of Patent: April 15, 2003Assignee: Eastman Kodak CompanyInventors: John W. Boettcher, Paul L. Zengerle, Roger L. Klaus
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Patent number: 6531273Abstract: This invention involves dispersions comprising ionic liquids and a non-ionic surfactant, optionally further comprising a photographically useful compound such as a dye-forming coupler. Such dispersions form coatings that are relatively free of physical defects, and show reduced problems such as crystallization of components like the couplers or ion pairs.Type: GrantFiled: November 21, 2001Date of Patent: March 11, 2003Assignee: Eastman Kodak CompanyInventors: Leif P. Olson, John W. Boettcher, James H. Reynolds
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Publication number: 20030019575Abstract: A method of making a liquid crystal display, including the steps of providing a substrate; providing a first electrode over the substrate; coating the first electrode with aqueous dispersed material which when dried provides a protective dielectric layer over the first electrode; coating the dielectric layer with liquid crystal bearing material and drying such liquid crystal bearing material, providing a second substrate having a second electrode, coating the second electrode with a dielectric adhesive layer; and laminating the coated second electrode to the liquid crystal bearing material by means of the dielectric adhesive material.Type: ApplicationFiled: July 26, 2001Publication date: January 30, 2003Applicant: Eastman Kodak CompanyInventors: Thomas M. Smith, Stanley W. Stephenson, John I. Kilburn, John W. Boettcher
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Publication number: 20030016329Abstract: A method of making a liquid crystal display, including the steps of providing a substrate; providing a first electrode over the substrate; coating the first electrode with aqueous dispersed material which when dried provides a protective dielectric layer over the first electrode; coating the dielectric layer with liquid crystal bearing material and drying such liquid crystal bearing material; providing a second substrate having a second electrode; and laminating the second electrode to the liquid crystal layer using heat and pressure only.Type: ApplicationFiled: July 21, 2001Publication date: January 23, 2003Applicant: Eastman Kodak CompanyInventors: Thomas M. Smith, Stanley W. Stephenson, John I. Kilburn, John W. Boettcher
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Patent number: 6468727Abstract: A hydrophobically capped oligomeric acrylamide or pyrrolidone is employed as a dispersant for hydrophobic materials in an aqueous medium containing a hydrophilic colloid, e.g. gelatin. The hydrophobic materials include photographic addenda such as color couplers or solid particle dyes. Preferred dispersants have the general formula R—L—T (1) or in which R, R1 and R2 are each independently selected from aliphatic hydrocarbyl, aryl-(aliphatic hydrocarbyl) and (aliphatic hydrocarbyl)-aryl groups, L is a sulphur atom or a linking group that contains a sulphur atom attached to the T group, and T is a hydrophilic oligomeric group obtained by the oligomerisation of one or more vinyl monomers having an amido function.Type: GrantFiled: January 26, 2001Date of Patent: October 22, 2002Assignee: Eastman Kodak CompanyInventors: Alan R. Pitt, Trevor J. Wear, Danuta Gibson, Ian M. Newington, Mary C. Brick, John W. Boettcher, Gary N. Barber
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Patent number: 6423368Abstract: A light-modulating, electrically responsive sheet including a substrate and an electrically conductive layer formed over the substrate. The sheet further includes, in an aqueous bath, an immiscible, field responsive light-modulating material along with a quantity of colloidal particles wherein the colloidal particles limit coalesced domain size and a binder; blending the constituents of the aqueous bath to form a dispersion of said field-responsive, light-modulating material below a coalescence size which sets to form limited coalescence domains having a uniform size; coating said material over the substrate; and drying said coated material to form a set of uniform domains so that such dispersion coalesces to form a set of uniform limited coalescence domains having a plurality of electrically responsive optical states.Type: GrantFiled: January 6, 2000Date of Patent: July 23, 2002Assignee: Eastman Kodak CompanyInventors: Stanley W. Stephenson, John W. Boettcher, David J. Giacherio
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Patent number: 6395459Abstract: The present invention relates to imaged elements having a protective overcoat that resists fingerprints, common stains, and spills. In particular, a curable overcoat composition is applied to an imaged element that contains a curing agent incorporated into a top layer of the element, resulting in a cured water-resistant or spill resistant overcoat. The invention can be used to protect photographic elements and recording media. In one embodiment of the invention, a UV-curable material and a water-dispersible latex is applied to a photographic print containing a photoinitiator incorporated into the original print.Type: GrantFiled: September 29, 2000Date of Patent: May 28, 2002Assignee: Eastman Kodak CompanyInventors: Jeffrey F. Taylor, Thomas H. Whitesides, Hwei-Ling Yau, Elmer C. Flood, John W. Boettcher
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Patent number: 6326134Abstract: A process for forming a silver halide photographic emulsion is disclosed comprising precipitating silver halide grains in an aqueous dispersing medium to which has been added silver and halide salt solutions while agitating the dispersing medium, wherein the precipitation is done in the presence of an antifoamant compound of the formula RO(CH2CH2O)nH wherein R represents an alkyl or alkenyl group containing 10 to 25 carbon atoms, or mixtures thereof, and n represents a mean value of from 2 to 4. The antifoamant material may be delivered to the aqueous dispersing medium as a small particle dispersion, made with the same peptizer used for manufacturing the emulsion or another stabilizer. A further embodiment of the invention is directed towards a silver halide photographic material comprising a support upon which is coated at least one light sensitive silver halide emulsion layer, comprising a silver halide emulsion precipitated in accordance with the described process.Type: GrantFiled: August 24, 2000Date of Patent: December 4, 2001Assignee: Eastman Kodak CompanyInventors: Lloyd A. Lobo, Sridhar Sadasivan, John W. Boettcher, Seshadri Jagannathan, Jerzy A. Budz, David C. Gliottone
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Publication number: 20010034385Abstract: A hydrophobically capped oligomeric acrylamide or pyrrolidone is employed as a dispersant for hydrophobic materials in an aqueous medium containing a hydrophilic colloid, e.g. gelatin. The hydrophobic materials include photographic addenda such as color couplers or solid particle dyes.Type: ApplicationFiled: January 26, 2001Publication date: October 25, 2001Applicant: Eastman Kodak CompanyInventors: Alan R. Pitt, Trevor J. Wear, Danuta Gibson, Ian M. Newington, Mary C. Brick, John W. Boettcher, Gary N. Barber