Patents by Inventor Danuta Gibson
Danuta Gibson 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: 8439487Abstract: A method for creating composite droplets for use in an ink jet system includes a first fluid (1) brought into contact with a second fluid within a set of channels (5,14). The interface between the fluids is characterized by an interfacial tension. The first fluid forms spaced droplets (8) within the second fluid, the composite of the first and second fluids passing through an orifice (6) to form a jet (9).Type: GrantFiled: June 27, 2008Date of Patent: May 14, 2013Assignee: Eastman Kodak CompanyInventors: Andrew Clarke, John M. Higgins, Andrew M. Howe, Danuta Gibson, Stephanie V. Desrousseaux
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Patent number: 8398226Abstract: An inkjet printing system comprising a plurality of static inkjet printing units each comprising at least one inkjet printing head; an ink-receiving element comprising a poorly-absorbing or impermeable substrate; an aqueous inkjet composition which comprises a polymeric compound comprising discrete particles responsive to an external stimulus, and a functional material, which may be incorporated as part of the polymeric particles, the composition having a first rheological state and a different second rheological state in response to a stimulated change in conditions, the first state being associated with a first lower viscosity of the composition, wherein the particles have a first lower volume, and the second state being associated with a second higher viscosity of the composition, wherein the particles have a second higher volume, and of drying the aqueous ink composition only positioned downstream of the plurality of the printing units.Type: GrantFiled: June 3, 2009Date of Patent: March 19, 2013Assignee: Eastman Kodak CompanyInventors: John M. Higgins, Danuta Gibson, Andrew M. Howe, Andrew Clarke, Stephanie V. Desrousseaux, Trevor J. Wear
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Patent number: 8263683Abstract: The invention provides an aqueous inkjet ink composition comprises a polymeric compound comprising discrete particles responsive to an external stimulus, and a functional material, wherein the functional material may be incorporated as part of the polymeric particles, the particles causing the composition to have a first rheological state and a different second rheological state in response to a stimulated change in conditions, the first rheological state being associated with a first lower viscosity of the composition, wherein the particles have a first lower volume, enabling the composition to pass through an inkjet printhead orifice and the second rheological state being associated with a second higher viscosity of the composition, wherein the particles have a second higher volume, enabling immobilisation of droplets of the composition on a substrate.Type: GrantFiled: December 19, 2007Date of Patent: September 11, 2012Assignee: Eastman Kodak CompanyInventors: Danuta Gibson, John M. Higgins, Stephanie V. Desrousseaux, Andrew M. Howe, Andrew Clarke, Christian V. Nicholas, John H. Hone
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Publication number: 20120046407Abstract: A method of making a polymeric compound, comprising discrete particles responsive to an external stimulus, that is resistant to aggregation in high-shear fields, which includes the addition of a polymerization initiator to a reaction mixture comprising a monomer corresponding to the polymeric compound, wherein the method comprises the portion-wise addition of aliquots of a cross-linking agent to the reaction mixture, wherein an aliquot of the cross-linking agent is added to the reaction mixture both before the addition of the polymerization initiator and after the polymerization has progressed substantially to completion. The polymer particles are largely immune to the effects of transient shear rates at least as high as 106 s?1, whilst maintaining their thermal responsiveness and being present at moderate concentration. The structural and chemical modifications brought by the delayed portion-wise addition of the cross-linking agent allow an improvement in stability in a high-shear field.Type: ApplicationFiled: December 17, 2009Publication date: February 23, 2012Inventors: Andrew Clarke, Stephanie Vronique Desrousseaux, Danuta Gibson, John Martin Higgins, Andrew Michael Howe, Trevor John Wear
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Publication number: 20110245400Abstract: A stimulus-responsive polymer particulate composition, comprising a first monomer, such as an aqueous microgel derived, for example, from N-isopropylacrylamide, may be rendered less susceptible to aggregation at high shear (e.g. at least as high as 106 s?1) by incorporating into the structure of the particle (e.g. by copolymerisation) of a further monomer, which is not a stimulus-responsive polymer-forming monomer. The further monomer may be incorporated in an amount of up to 25 mol % based on the amount of the first monomer. Such modified polymer particles are suitable for inkjet printing applications (e.g. for printing of aqueous microgels onto low-energy surface substrates).Type: ApplicationFiled: April 6, 2011Publication date: October 6, 2011Inventors: Trevor John Wear, John Martin Higgins, Andrew Clarke, Andrew Michael Howe, Danuta Gibson, Stephanie Veronique Desrousseaux
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Publication number: 20100238232Abstract: A method for creating composite droplets for use in an ink jet system includes a first fluid (1) brought into contact with a second fluid within a set of channels (5,14). The interface between the fluids is characterised by an interfacial tension. The first fluid forms spaced droplets (8) within the second fluid, the composite of the first and second fluids passing through an orifice (6) to form a jet (9).Type: ApplicationFiled: June 27, 2008Publication date: September 23, 2010Inventors: Andrew Clarke, John M. Higgins, Andrew M. Howe, Danuta Gibson, Stephanie V. Desrousseaux
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Publication number: 20100068387Abstract: The invention provides an aqueous inkjet ink composition comprises a polymeric compound comprising discrete particles responsive to an external stimulus, and a functional material, wherein the functional material may be incorporated as part of the polymeric particles, the particles causing the composition to have a first rheological state and a different second rheological state in response to a stimulated change in conditions, the first rheological state being associated with a first lower viscosity of the composition, wherein the particles have a first lower volume, enabling the composition to pass through an inkjet printhead orifice and the second rheological state being associated with a second higher viscosity of the composition, wherein the particles have a second higher volume, enabling immobilisation of droplets of the composition on a substrate.Type: ApplicationFiled: December 19, 2007Publication date: March 18, 2010Inventors: Danuta Gibson, John M. Higgins, Stephanie V. Desrousseaux, Andrew M. Howe, Andrew Howe, Andrew Clarke, Christian V. Nicholas, John H. Hone
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Publication number: 20090322811Abstract: An inkjet printing system comprising a plurality of static inkjet printing units each comprising at least one inkjet printing head; an ink-receiving element comprising a poorly-absorbing or impermeable substrate; an aqueous inkjet composition which comprises a polymeric compound comprising discrete particles responsive to an external stimulus, and a functional material, which may be incorporated as part of the polymeric particles, the composition having a first rheological state and a different second rheological state in response to a stimulated change in conditions, the first state being associated with a first lower viscosity of the composition, wherein the particles have a first lower volume, and the second state being associated with a second higher viscosity of the composition, wherein the particles have a second higher volume, and of drying the aqueous ink composition only positioned downstream of the plurality of the printing units.Type: ApplicationFiled: June 3, 2009Publication date: December 31, 2009Inventors: John M. Higgins, Danuta Gibson, Andrew M. Howe, Andrew Clarke, Stephanie V. Desrousseaux, Trevor J. Wear
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Patent number: 6900006Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating compound at least one heterocyclic cyan dye-forming coupler of a specified formula and an aromatic stabilizer of a particular formula. The combination provides improved image stability.Type: GrantFiled: December 4, 2002Date of Patent: May 31, 2005Assignee: Eastman Kodak CompanyInventors: Danuta Gibson, David Clarke, Christopher J. Winscom, Michael W. Crawley
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Patent number: 6841344Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating hydrogen bond donating and hydrogen bond accepting compound and at least one pyrazole fused ring derivative coupler. The combination provides improved colour reproduction.Type: GrantFiled: December 4, 2002Date of Patent: January 11, 2005Assignee: Eastman Kodak CompanyInventors: Danuta Gibson, David Clarke, Christopher J. Winscom
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Patent number: 6762006Abstract: A donor element for use in laser thermal imaging has a layer which comprises an infrared-absorbing material, an image dye and a polymer matrix comprising a thermally degradable polymer and a non thermally degradable polymer there being an interaction between the infrared-absorbing material and the non degradable polymer to facilitate retention of the infrared-absorbing material in the donor element. The degradable and non degradable polymers are preferably copolymers both of which contain methacrylic acid as a monomer. The degradable polymer is preferably a copolymer of methoxyethyl cyanoacrylate and methacrylic acid preferably in molar proportions of from 1:1 to 12:1. The non degradable polymer is preferably a copolymer of methyl methacrylate and methacrylic acid, preferably in molar proportions of from 1:1 to 15:1. The element may be prepared from an aqueous solid particle dispersion which has been prepared by milling the components together in a ball mill.Type: GrantFiled: September 25, 2002Date of Patent: July 13, 2004Assignee: Eastman Kodak CompanyInventors: Malcolm D. Purbrick, Marie C. Bunce, Phillip J. Coldrick, Danuta Gibson, Ian M. Newington, Dawn J. Jenkins
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Patent number: 6756189Abstract: Disclosed is a colour photographic element containing one or more cyan dye-forming couplers, a UV absorber and a specific class of stabiliser, and an imaging process used therewith. The element exhibits improved stability.Type: GrantFiled: October 11, 2002Date of Patent: June 29, 2004Assignee: Eastman Kodak CompanyInventors: Danuta Gibson, Llewellyn J. Leyshon, David Clarke
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Publication number: 20030232289Abstract: Disclosed is a colour photographic element containing one or more cyan dye-forming couplers, a UV absorber and a specific class of stabiliser, and an imaging process used therewith. The element exhibits improved stability.Type: ApplicationFiled: October 11, 2002Publication date: December 18, 2003Applicant: Eastman Kodak CompanyInventors: Danuta Gibson, Llewellyn J. Leyshon, David Clarke
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Publication number: 20030186177Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating hydrogen bond donating and hydrogen bond accepting compound and at least one pyrazole fused ring derivative coupler. The combination provides improved colour reproduction.Type: ApplicationFiled: December 4, 2002Publication date: October 2, 2003Applicant: Eastman Kodak CompanyInventors: Danuta Gibson, David Clarke, Christopher J. Winscom
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Publication number: 20030186178Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating compound at least one heterocyclic cyan dye-forming coupler of a specified formula and an aromatic stabilizer of a particular formula. The combination provides improved image stability.Type: ApplicationFiled: December 4, 2002Publication date: October 2, 2003Applicant: Eastman Kodak CompanyInventors: Danuta Gibson, David Clarke, Christopher J. Winscom, Michael W. Crawley
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Publication number: 20030138723Abstract: A donor element for use in laser thermal imaging has a layer which comprises an infrared-absorbing material, an image dye and a polymer matrix comprising a thermally degradable polymer and a non thermally degradable polymer there being an interaction between the infrared-absorbing material and the non degradable polymer to facilitate retention of the infrared-absorbing material in the donor element. The degradable and non degradable polymers are preferably copolymers both of which contain methacrylic acid as a monomer. The degradable polymer is preferably a copolymer of methoxyethyl cyanoacrylate and methacrylic acid preferably in molar proportions of from 1:1 to 12:1. The non degradable polymer is preferably a copolymer of methyl methacrylate and methacrylic acid, preferably in molar proportions of from 1:1 to 15:1.Type: ApplicationFiled: September 25, 2002Publication date: July 24, 2003Applicant: Eastman Kodak CompanyInventors: Malcolm D. Purbrick, Marie C. Bunce, Phillip J. Coldrick, Danuta Gibson, Ian M. Newington, Dawn J. Jenkins
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Patent number: 6548234Abstract: The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, UV absorber and (A) a stabilizer of formula (I) wherein R1 is an unsubstituted or substituted alkyl or aryl group or a 5- to 10- membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; Z is a hydrogen atom or a substituent group; X is a group selected from —SO2—, —SO—, —COO—,—CO— and —CS—, W is one or more unsubstituted or independently substituted alkylene groups connecting the nitrogen atom to X, and p is 0 or 1; R2 is a substituent group; or the groups represented by Z and R2 can be joined to form a ring which may be substituted; and (B) a high-boiling solvent of formula (II) wherein R3 is an unsubstituted or substituted alkyl orType: GrantFiled: August 21, 2001Date of Patent: April 15, 2003Assignee: Eastman Kodak CompanyInventor: Danuta Gibson
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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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Publication number: 20020061480Abstract: The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, UV absorber andType: ApplicationFiled: August 21, 2001Publication date: May 23, 2002Applicant: Eastman Kodak CompanyInventor: Danuta Gibson
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Patent number: 6312881Abstract: In accordance with one embodiment of the invention, a photographic element is disclosed comprising a silver halide emulsion layer having associated therewith an acetanilide-based yellow dye forming coupler and a stabilizer compound of the formula S-I: wherein R0 represents an aryl or heterocyclic group; Ra is H or a substituent group; L represents an alkylene linking group and p represents 0 or 1; and Rb is a substituent group, provided that substituent groups represented by Ra and Rb may be joined to form a ring. The presence of substituted amine compounds of formula S-I improves the efficiency of dye formation reaction for acetanilide-based couplers. When used in combination with known bis-phenolic stabilizers, substantial improvements in the light stability of the image dyes can be also be obtained.Type: GrantFiled: January 14, 2000Date of Patent: November 6, 2001Assignee: Eastman Kodak CompanyInventors: Danuta Gibson, James S. Honan, Llewellyn J. Leyshon, Thomas A. Rosiek, Brian Thomas