Patents by Inventor Julie Baker
Julie Baker 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: 7211294Abstract: The invention provides a method of making a material. The method comprises the step of coating a support with a solution comprising a hydrophilic polymer and a blowing agent. Either prior to or after the step of coating the support, the solution is interacted with in some way e.g. heated, to cause the blowing agent to generate gas bubbles within the solution, causing foaming of the hydrophilic polymer.Type: GrantFiled: July 29, 2003Date of Patent: May 1, 2007Assignee: Eastman Kodak CompanyInventors: Joanne Hunt, Julie Baker
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Publication number: 20060270745Abstract: The invention provides a method of making a material, said method comprising generating a foamed hydrophilic polymer solution, especially of a gelatin or derivative thereof, and treating said foamed hydrophilic polymer solution with sufficient energy and for a sufficiently short time that a polymer foam having an open-cell structure is formed. The invention also provides a material comprising a support and an ink receiving layer supported on the support, the ink receiving layer comprising porous hydrophilic polymer, especially gelatin, and is formed by coating a solution of foamed hydrophilic polymer, especially gelatin, onto a support substrate and drying the coated substrate for a time period selected to be short enough such that an open-cell foam is formed.Type: ApplicationFiled: April 2, 2004Publication date: November 30, 2006Applicant: EASTMAN KODAK COMPANYInventors: Joanne Hunt, Julie Baker, Alan Pitt
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Patent number: 7087275Abstract: A coating fluid for application to a support to prepare an ink jet recording medium comprises an aqueous dispersion of a synthetic polymer hydrogel and gelatin, the amount of the synthetic polymer hydrogel being from 5 to 50% by weight of the combined weight of synthetic polymer and gelatin. Preferably the coating fluid also contains a mordant, an aliphatic alcohol to assist dispersion of the hydrogel polymer and a particulate material to impart a porous structure to the coating. The invention also provides an inkjet recording medium comprising a support on which is an ink-receiving layer comprising the gelatin and a synthetic polymer hydrogel. The amount of the latter may be from 0.3 to 5 g/square meter.Type: GrantFiled: May 30, 2002Date of Patent: August 8, 2006Assignee: Eastman Kodak CompanyInventors: Julie Baker, Malcolm D. Purbrick
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Publication number: 20060099355Abstract: A method of making a material comprising the steps of coating a support with at least one layer of polymer solution containing a surfactant and a blowing agent. The pH value of the solution is reduced prior to the addition of the blowing agent resulting in a smoother surface to the material.Type: ApplicationFiled: January 23, 2004Publication date: May 11, 2006Inventor: Julie Baker
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Patent number: 6939577Abstract: The invention provides a method of making a material comprising the steps of: coating a support with a solution comprising a polymer, a blowing agent and a surfactant. Either prior to or after the step of coating the support, the solution is interacted with to cause the blowing agent to generate bubbles within the solution causing foaming of the polymer. The surfactant is selected in dependence on whether or not it satisfies one or more predetermined criteria, to control the size of the bubbles.Type: GrantFiled: October 9, 2003Date of Patent: September 6, 2005Assignee: Eastman Kodak CompanyInventors: Julie Baker, Alan R. Pitt
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Patent number: 6929824Abstract: A method of making a material comprises the steps of coating a support with a solution, the solution comprising a polymer and at least one blowing agent. Activation of the blowing agent is prevented until after coating.Type: GrantFiled: October 16, 2003Date of Patent: August 16, 2005Assignee: Eastman Kodak CompanyInventor: Julie Baker
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Publication number: 20050118358Abstract: An image recording medium for an ink jet printer comprises (a) a sheet of solvent absorbing microporous material which comprises a matrix of substantially water insoluble thermoplastic organic polymer, finely divided substantially water insoluble filler particles of which at least 50% by weight are siliceous particles said filler particles being distributed throughout the matrix and constituting from 40 to 90% by weight of said micorporous material, there being a network of interconnecting pores communicating substantially throughout said microporous material said pores constituting from 35 to 95% by volume of said microporous material, said sheet of microporous material having (b) a coating of a polyester. The polyester can be a condensation product obtained from dicarboxylic acids and glycols and contains sufficient hydrophilic groups such as sulphonate to make it water dispersible.Type: ApplicationFiled: January 5, 2005Publication date: June 2, 2005Inventors: Julie Baker, Malcolm Purbrick
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Publication number: 20050064113Abstract: A coating fluid for forming a coating on a support for use in inkjet printing comprises a liquid medium having dispersed therein (a) an inorganic oxide selected from aluminium oxide and silica, (b) a binder polymer, and (c) a polymeric crosslinking agent containing functional groups for reaction with the inorganic oxide. The components (a), (b) and (c) are preferably dispersed in an aqueous liquid and the relative amounts of inorganic oxide to polymeric crosslinking agent are from 500:1 to 15:1 preferably 250:1 to 20:1, the relative amounts of inorganic oxide to binder polymer are from 50:1 to 2:1 preferably 20:1 to 4:1 and the relative amounts of binder polymer to polymeric crosslinking agent are from 40:1 to 2:1 preferably from 20:1 to 3:1 the amounts being by weight on a dry basis.Type: ApplicationFiled: November 10, 2004Publication date: March 24, 2005Inventors: Malcom Purbrick, Ian Newington, Julie Baker
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Patent number: 6866895Abstract: An image recording medium for an ink jet printer comprises(a) a sheet of solvent absorbing microporous material which comprises a matrix of substantially water insoluble thermoplastic organic polymer, finely divided substantially water insoluble filler particles of which at least 50% by weight are siliceous particles said filler particles being distributed throughout the matrix and constituting from 40 to 90% by weight of said micorporous material, there being a network of interconnecting pores communicating substantially throughout said microporous material said pores constituting from 35 to 95% by volume of said microporous material, said sheet of microporous material having (b) a coating of a polyester. The polyester can be a condensation product obtained from dicarboxylic acids and glycols and contains sufficient hydrophilic groups such as sulphonate to make it water dispersible.Type: GrantFiled: November 6, 2002Date of Patent: March 15, 2005Assignee: Eastman Kodak CompanyInventors: Julie Baker, Malcolm D. Purbrick
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Patent number: 6838505Abstract: A coating fluid for forming a coating on a support for use in inkjet printing comprises a liquid medium having dispersed therein (a) an inorganic oxide selected from aluminium oxide and silica, (b) a binder polymer, and (c) a polymeric crosslinking agent containing functional groups for reaction with the inorganic oxide. The components (a), (b) and (c) are preferably dispersed in an aqueous liquid and the relative amounts of inorganic oxide to polymeric crosslinking agent are from 500:1 to 15:1 preferably 250:1 to 20:1, the relative amounts of inorganic oxide to binder polymer are from 50:1 to 2:1 preferably 20:1 to 4:1 and the relative amounts of binder polymer to polymeric crosslinking agent are from 40:1 to 2:1 preferably from 20:1 to 3:1 the amounts being by weight on a dry basis.Type: GrantFiled: October 16, 2001Date of Patent: January 4, 2005Assignee: Eastman Kodak CompanyInventors: Malcom D. Purbrick, Ian M. Newington, Julie Baker
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Publication number: 20040091626Abstract: A method of making a material comprises the steps of coating a support with a solution, the solution comprising a polymer and at least one blowing agent. Activation of the blowing agent is prevented until after coating.Type: ApplicationFiled: October 16, 2003Publication date: May 13, 2004Applicant: Eastman Kodak CompanyInventor: Julie Baker
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Publication number: 20040071901Abstract: The invention provides a method of making a material comprising the steps of: coating a support with a solution comprising a polymer, a blowing agent and a surfactant. Either prior to or after the step of coating the support, the solution is interacted with to cause the blowing agent to generate bubbles within the solution causing foaming of the polymer. The surfactant is selected in dependence on whether or not it satisfies one or more predetermined criteria, to control the size of the bubbles.Type: ApplicationFiled: October 9, 2003Publication date: April 15, 2004Applicant: Eastman Kodak CompanyInventors: Julie Baker, Alan R. Pitt
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Publication number: 20040027440Abstract: The invention provides an inkjet recording medium, comprising a support and an ink receiving layer supported on the support. The ink receiving layer comprising a porous hydrophilic polymer.Type: ApplicationFiled: July 31, 2003Publication date: February 12, 2004Applicant: Eastman Kodak CompanyInventors: Julie Baker, Joanne Hunt
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Publication number: 20040028817Abstract: The invention provides a method of making a material. The method comprises the step of coating a support with a solution comprising a hydrophilic polymer and a blowing agent. Either prior to or after the step of coating the support, the solution is interacted with in some way e.g. heated, to cause the blowing agent to generate gas bubbles within the solution, causing foaming of the hydrophilic polymer.Type: ApplicationFiled: July 29, 2003Publication date: February 12, 2004Applicant: Eastman Kodak CompanyInventors: Joanne Hunt, Julie Baker
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Patent number: 6649233Abstract: An image recording element for inkjet ink images comprises, in the following order, a support, an absorbent base layer; and, a top layer which is ink receptive and comprises one or more hydrophilic polymers, gelatin, a crosslinking agent for gelatin and a humectant.Type: GrantFiled: May 22, 2000Date of Patent: November 18, 2003Assignee: Eastman Kodak CompanyInventor: Julie Baker
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Patent number: 6573021Abstract: The invention relates to an ultrahigh contrast photographic material comprising a support bearing a silver halide emulsion layer, containing a combination of two or more hydrazide nucleating agents in the emulsion layer and/or a hydrophilic colloid layer, characterized in that the combination comprises a nucleating agent(s) of formulae (I) and/or (I) with a nucleator of formula (III), in which the nucleating agent of formula (I) comprises (a) two nicotinamide moieties, which may be the same or different, which are linked by a linking group, and (b) a hydrazide moiety linked to only one of those nicotinamide moieties; the nucleating agent of formula (II) comprises a dimeric molecule comprising two monomers linked by a linking group, each monomer of which (a) may be the same or different and (b) comprises a hydrazide moiety and a nicotinamide moiety; and the nucleating agent of formula (III) comprises an aryl sulfonamido aryl hydrazide.Type: GrantFiled: January 7, 2002Date of Patent: June 3, 2003Assignee: Eastman Kodak CompanyInventors: Julie Baker, Ian Barford, Philip J. Coldrick, Dawn J. Jenkins, Roger H. Piggin
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Publication number: 20030099822Abstract: An image recording medium for an ink jet printer comprises(a) a sheet of solvent absorbing microporous material which comprises a matrix of substantially water insoluble thermoplastic organic polymer, finely divided substantially water insoluble filler particles of which at least 50% by weight are siliceous particles said filler particles being distributed throughout the matrix and constituting from 40 to 90% by weight of said micorporous material, there being a network of interconnecting pores communicating substantially throughout said microporous material said pores constituting from 35 to 95% by volume of said microporous material, said sheet of microporous material having (b) a coating of a polyester. The polyester can be a condensation product obtained from dicarboxylic acids and glycols and contains sufficient hydrophilic groups such as sulphonate to make it water dispersible.Type: ApplicationFiled: November 6, 2002Publication date: May 29, 2003Applicant: Eastman Kodak CompanyInventors: Julie Baker, Malcolm D. Purbrick
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Patent number: 6534157Abstract: An image-recording element for inkjet ink images comprises a support, an ink-receptive layer and a top layer, wherein the top layer comprises a polymer that contains both a hydrophilic component and a hydrophobic component, or a mixture of two or more such polymers, the said polymer or polymer mixture being present in the top layer in an amount of from 0.003 to 0.5 g/m2. The top layer preferably comprises a polymer that contains both hydrophilic substituents and hydrophobic substituents, for example a polymer selected from the polymers and copolymers of acrylic acid, methacrylic acid, acrylic acid esters or methacrylic acid esters, or a salt of such a polymer or copolymer. The base layer, which may comprise gelatin, preferably has a thickness of from 3 to 20 &mgr;m. The support may be a conventional support, for example a paper sheet. The invention can provide improved drying times for the inkjet images, even under conditions of high humidity.Type: GrantFiled: September 25, 2000Date of Patent: March 18, 2003Assignee: Eastman Kodak CompanyInventors: Julie Baker, John M. Higgins, Malcom D. Purbrick
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Patent number: 6534156Abstract: An image-recording element for inkjet ink images comprises a support, an ink-receptive layer and a top layer, wherein the top layer comprises a polymer that contains both a hydrophilic component and a hydrophobic component, or a mixture of two or more such polymers, the said polymer or polymer mixture being present in the top layer in an amount of from 0.003 to 0.5 g/m2, and wherein the top layer has been hardened with an oxazoline functional polymer. The top layer preferably comprises a polymer that contains both hydrophilic substituents and hydrophobic substituents, for example a polymer selected from the polymers and copolymers of acrylic acid, methacrylic acid, acrylic acid esters or methacrylic acid esters, or a salt of such a polymer or copolymer. The base layer, which may comprise gelatin, preferably has a thickness of from 3 to 20 &mgr;m. The support may be a conventional support, for example a paper sheet.Type: GrantFiled: August 15, 2000Date of Patent: March 18, 2003Assignee: Eastman Kodak CompanyInventors: Julie Baker, Malcolm D. Purbrick, Charles E. Romano, Jr.
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Publication number: 20030021963Abstract: A coating fluid for application to a support to prepare an ink jet recording medium comprises an aqueous dispersion of a synthetic polymer hydrogel and gelatin, the amount of the synthetic polymer hydrogel being from 5 to 50% by weight of the combined weight of synthetic polymer and gelatin. Preferably the coating fluid also contains a mordant, an aliphatic alcohol to assist dispersion of the hydrogel polymer and a particulate material to impart a porous structure to the coating.Type: ApplicationFiled: May 30, 2002Publication date: January 30, 2003Applicant: Eastman Kodak CompanyInventors: Julie Baker, Malcolm D. Purbrick