Patents by Inventor Paul Anthony Sant
Paul Anthony Sant 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: 9209397Abstract: A process for forming a layer of an electroactive material, including: depositing a liquid composition containing an electroactive material and at least one solvent onto a workpiece to form a wet layer; placing the wet layer on the workpiece into a vacuum chamber containing solid absorptive material; and treating the wet layer at a controlled temperature in a range of ?25° C. to 80° C. and under an applied vacuum in a range of 10?6 Torr to 1,000 Torr for a period of 1-100 minutes.Type: GrantFiled: March 9, 2010Date of Patent: December 8, 2015Assignees: DUPONT DISPLAYS INC, EI DU PONT DE NEMOURS AND COMPANYInventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
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Patent number: 9209398Abstract: There is provided a process for vacuum drying. The process includes the steps of: depositing a liquid composition containing a film-forming material and at least one solvent onto a workpiece to form a wet layer; placing the wet layer on the workpiece into a vacuum chamber including a condenser; and treating the wet layer at a controlled temperature in the range of ?25 to 80° C. and under an applied vacuum in the range of 10?6 to 1,000 Torr for a period of 1-100 minutes; wherein the condenser is maintained at a temperature at which the solvent will condense as a liquid at the applied vacuum.Type: GrantFiled: March 9, 2010Date of Patent: December 8, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INCInventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
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Publication number: 20140264307Abstract: There is provided a process for forming a layer of electroactive material having a substantially flat profile. The process includes: providing a workpiece having at least one active area; depositing a liquid composition including the electroactive material onto the workpiece in the active area, to form a wet layer; treating the wet layer on the workpiece at a controlled temperature in the range of ?25 to 80° C. and under a vacuum in the range of 10?6 to 1,000 Torr, for a first period of 1-100 minutes, to form a partially dried layer; heating the partially dried layer to a temperature above 100° C. for a second period of 1-50 minutes to form a dried layer.Type: ApplicationFiled: June 2, 2014Publication date: September 18, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: REID JOHN CHESTERFIELD, JUSTIN BUTLER, PAUL ANTHONY SANT
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Patent number: 8778708Abstract: There is provided a process for forming a layer of electroactive material having a substantially flat profile. The process includes: providing a workpiece having at least one active area; depositing a liquid composition including the electroactive material onto the workpiece in the active area, to form a wet layer; treating the wet layer on the workpiece at a controlled temperature in the range of ?25 to 80° C. and under a vacuum in the range of 10?6 to 1,000 Torr, for a first period of 1-100 minutes, to form a partially dried layer; heating the partially dried layer to a temperature above 100° C. for a second period of 1-50 minutes to form a dried layer.Type: GrantFiled: March 8, 2010Date of Patent: July 15, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
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Patent number: 8383192Abstract: There is provided a process for forming a contained second layer over a first layer, including the steps: forming the first layer having a first surface energy; treating the first layer with a reactive surface-active composition to form a treated first layer having a second surface energy which is lower than the first surface energy; exposing the treated first layer with radiation; and forming the second layer. There is also provided an organic electronic device made by the process.Type: GrantFiled: April 5, 2011Date of Patent: February 26, 2013Assignee: E. I. du Pont de Nemours and CompanyInventors: Charles D. Lang, Stephen Sorich, Charles Kenneth Taylor, Douglas Robert Anton, Alberto Goenaga, Paul Anthony Sant
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Patent number: 8309376Abstract: There is provided a process for forming a contained second layer over a first layer. The process comprises forming the first layer having a first surface energy and then treating the first layer with a photocurable surface-active composition which is a fluorinated ester or fluorinated imide of an ?,?-unsaturated polyacid; exposing the photocurable surface-active composition patternwise with radiation resulting in exposed areas and unexposed areas; developing the photocurable surface-active composition to remove the unexposed areas resulting in a first layer having untreated portions in the unexposed areas and treated portions in the exposed areas, where the treated portions have a second surface energy that is lower than the first surface energy; and forming the second layer on the untreated portions of the first layer. There is also provided an organic electronic device made by the process.Type: GrantFiled: October 24, 2008Date of Patent: November 13, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Charles D. Lang, Paul Anthony Sant, Jerald Feldman, Steven Dale Ittel, Stephan James McLain
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Publication number: 20110309360Abstract: There is provided a process for forming a layer of electroactive material having a substantially flat profile. The process includes: providing a workpiece having at least one active area; depositing a liquid composition including the electroactive material onto the workpiece in the active area, to form a wet layer; treating the wet layer on the workpiece at a controlled temperature in the range of ?25 to 80° C. and under a vacuum in the range of 10?6 to 1,000 Torr, for a first period of 1-100 minutes, to form a partially dried layer; heating the partially dried layer to a temperature above 100° C. for a second period of 1-50 minutes to form a dried layer.Type: ApplicationFiled: March 8, 2010Publication date: December 22, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
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Publication number: 20110305824Abstract: There is provided a process for vacuum drying. The process includes the steps of: depositing a liquid composition containing a film-forming material and at least one solvent onto a workpiece to form a wet layer; placing the wet layer on the workpiece into a vacuum chamber including a condenser; and treating the wet layer at a controlled temperature in the range of ?25 to 80° C. and under an applied vacuum in the range of 10?6 to 1,000 Torr for a period of 1-100 minutes; wherein the condenser is maintained at a temperature at which the solvent will condense as a liquid at the applied vacuum.Type: ApplicationFiled: March 9, 2010Publication date: December 15, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
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Publication number: 20110300657Abstract: There is provided a process for forming a layer of electroactive material. The process includes: depositing a liquid composition containing an electroactive material and at least one solvent onto a workpiece to form a wet layer; placing the wet layer on the workpiece into a vacuum chamber containing solid absorptive material; and treating the wet layer at a controlled temperature in the range of ?25° C. to 80° C. and under an applied vacuum in the range of 10?6 Torr to 1,000 Torr for a period of 1-100 minutes.Type: ApplicationFiled: March 9, 2010Publication date: December 8, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
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Patent number: 8067887Abstract: Provided are containment structures having a substrate structure having a plurality of walls extending from a surface to define a space, wherein at least one of the walls has an overall negative slope; a first layer deposited in the space having a first surface energy no greater than 30 mN/m; and a second layer deposited on top of the first layer.Type: GrantFiled: December 21, 2005Date of Patent: November 29, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Paul Anthony Sant, Matthew Stainer
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Publication number: 20110183268Abstract: There is provided a process for forming a contained second layer over a first layer, including the steps: forming the first layer having a first surface energy; treating the first layer with a reactive surface-active composition to form a treated first layer having a second surface energy which is lower than the first surface energy; exposing the treated first layer with radiation; and forming the second layer. There is also provided an organic electronic device made by the process.Type: ApplicationFiled: April 5, 2011Publication date: July 28, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INCInventors: Charles D. Lang, Stephen Sorich, Charles Kenneth Taylor, Douglas Robert Anton, Alberto Goenaga, Paul Anthony Sant
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Publication number: 20110092076Abstract: An apparatus and method for vapor phase deposition of a reactive surface area (RSA) material onto a substrate of an electronic device. The vapor phase deposition is conducted at ambient pressures in air, and provides capture of residual vapor to minimize environmental release of RSA and other constituents used in the processing.Type: ApplicationFiled: May 19, 2009Publication date: April 21, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Charles D. Lang, James Daniel Tremel, Paul Anthony Sant, Stephen Sorich, David K. Flattery, Gary A. Johansson, Jerald Feldman, Steven Dale Ittel, George Simpson
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Patent number: 7785489Abstract: Compositions for improved liquid deposition of active material in manufacturing processes of electronic devices are provided. The compositions comprise at least one active material for liquid deposition, at least one first solvent, at least one second solvent, and at least one third solvent, with a fourth solvent optional. The solvents are selected on the basis of their co-miscibility, ability to form a composition with each other and with active material without significant precipitation of active material from the composition, and at least one of the solvents having a surface tension equal to or less than that of the substrate upon which active material is to be deposited.Type: GrantFiled: December 22, 2006Date of Patent: August 31, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Alberto Goenaga, Paul Anthony Sant
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Publication number: 20100213454Abstract: There is provided a process for forming a contained second layer over a first layer. The process comprises forming the first layer having a first surface energy and then treating the first layer with a photocurable surface-active composition which is a fluorinated ester or fluorinated imide of an ?,?-unsaturated polyacid; exposing the photocurable surface-active composition patternwise with radiation resulting in exposed areas and unexposed areas; developing the photocurable surface-active composition to remove the unexposed areas resulting in a first layer having untreated portions in the unexposed areas and treated portions in the exposed areas, where the treated portions have a second surface energy that is lower than the first surface energy; and forming the second layer on the untreated portions of the first layer. There is also provided an organic electronic device made by the process.Type: ApplicationFiled: October 24, 2008Publication date: August 26, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Charles D. Lang, Paul Anthony Sant, Jerald Feldman, Steven Dale Ittel, Stephan James McLain
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Publication number: 20090072713Abstract: Provided are containment structures having a substrate structure having a plurality of walls extending from a surface to define a space, wherein at least one of the walls has an overall negative slope; a first layer deposited in the space having a first surface energy no greater and a second layer deposited on top of the first layer.Type: ApplicationFiled: December 21, 2005Publication date: March 19, 2009Applicant: E.I. du Pont de Nemours and CompanyInventors: Paul Anthony Sant, Matthew Stainer
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Publication number: 20080309221Abstract: In one embodiment, a containment structure (230) for an organic composition (240) is provided. The containment structure (230) includes an undercut layer (210) and an overlying layer (220), wherein the undercut (210) and overlying (220) layers define a volume for receiving the organic composition (240) in liquid form.Type: ApplicationFiled: December 29, 2005Publication date: December 18, 2008Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Charles D Lang, Stephan Claude De La Veaux, Paul Anthony Sant, Dennis Damon Walker, Stephen Sorich, Matthew Stainer
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Publication number: 20080286487Abstract: There is provided a process for forming a contained second layer over a first layer, including the steps: forming the first layer having a first surface energy and a first glass transition temperature; condensing an intermediate material over and in direct contact with the first layer to form an intermediate layer, said intermediate layer having a second surface energy which is lower than the first surface energy; patterning the intermediate layer to form uncovered areas of the first layer and covered areas of the first layer; and forming a contained second layer over the uncovered areas of the first layer. There is also provided a process for making an organic electronic device.Type: ApplicationFiled: May 15, 2008Publication date: November 20, 2008Inventors: Charles D. Lang, Paul Anthony Sant, Alberto Goenaga
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Publication number: 20070218582Abstract: There is provided a process for forming a contained second layer over a first layer, including the steps: forming the first layer having a first surface energy; treating the first layer with a reactive surface-active composition to form a treated first layer having a second surface energy which is lower than the first surface energy; exposing the treated first layer with radiation; and forming the second layer. There is also provided an organic electronic device made by the process.Type: ApplicationFiled: April 10, 2006Publication date: September 20, 2007Inventors: Charles D. Lang, Stephen Sorich, Charles Kenneth Taylor, Douglas Robert Anton, Alberto Goenaga, Paul Anthony Sant
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Patent number: 6992326Abstract: An electronic device includes a substrate, a structure having openings, and a first electrode overlying the structure and lying within the openings. From a cross-sectional view, the structure, at the openings, has a negative slope. From a plan view, each opening has a perimeter that may or may not substantially correspond to a perimeter of an organic electronic component. The portions of the first electrode overlying the structure and lying within the openings are connected to each other. In a process for forming the electronic device, an organic active layer may be deposited within the opening, wherein the organic active layer has a liquid composition.Type: GrantFiled: August 3, 2004Date of Patent: January 31, 2006Assignee: DuPont Displays, Inc.Inventors: Charles Douglas MacPherson, Matthew Stainer, Michael Anzlowar, Paul Anthony Sant, Sughosh Venkatesh