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).

  • Patent number: 9209397
    Abstract: 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: Grant
    Filed: March 9, 2010
    Date of Patent: December 8, 2015
    Assignees: DUPONT DISPLAYS INC, EI DU PONT DE NEMOURS AND COMPANY
    Inventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
  • Patent number: 9209398
    Abstract: 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: Grant
    Filed: March 9, 2010
    Date of Patent: December 8, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INC
    Inventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
  • Publication number: 20140264307
    Abstract: 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: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: REID JOHN CHESTERFIELD, JUSTIN BUTLER, PAUL ANTHONY SANT
  • Patent number: 8778708
    Abstract: 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: Grant
    Filed: March 8, 2010
    Date of Patent: July 15, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
  • Patent number: 8383192
    Abstract: 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: Grant
    Filed: April 5, 2011
    Date of Patent: February 26, 2013
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Charles D. Lang, Stephen Sorich, Charles Kenneth Taylor, Douglas Robert Anton, Alberto Goenaga, Paul Anthony Sant
  • Patent number: 8309376
    Abstract: 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: Grant
    Filed: October 24, 2008
    Date of Patent: November 13, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Charles D. Lang, Paul Anthony Sant, Jerald Feldman, Steven Dale Ittel, Stephan James McLain
  • Publication number: 20110309360
    Abstract: 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: Application
    Filed: March 8, 2010
    Publication date: December 22, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
  • Publication number: 20110305824
    Abstract: 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: Application
    Filed: March 9, 2010
    Publication date: December 15, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
  • Publication number: 20110300657
    Abstract: 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: Application
    Filed: March 9, 2010
    Publication date: December 8, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
  • Patent number: 8067887
    Abstract: 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: Grant
    Filed: December 21, 2005
    Date of Patent: November 29, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Paul Anthony Sant, Matthew Stainer
  • Publication number: 20110183268
    Abstract: 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: Application
    Filed: April 5, 2011
    Publication date: July 28, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INC
    Inventors: Charles D. Lang, Stephen Sorich, Charles Kenneth Taylor, Douglas Robert Anton, Alberto Goenaga, Paul Anthony Sant
  • Publication number: 20110092076
    Abstract: 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: Application
    Filed: May 19, 2009
    Publication date: April 21, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Charles D. Lang, James Daniel Tremel, Paul Anthony Sant, Stephen Sorich, David K. Flattery, Gary A. Johansson, Jerald Feldman, Steven Dale Ittel, George Simpson
  • Patent number: 7785489
    Abstract: 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: Grant
    Filed: December 22, 2006
    Date of Patent: August 31, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Alberto Goenaga, Paul Anthony Sant
  • Publication number: 20100213454
    Abstract: 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: Application
    Filed: October 24, 2008
    Publication date: August 26, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Charles D. Lang, Paul Anthony Sant, Jerald Feldman, Steven Dale Ittel, Stephan James McLain
  • Publication number: 20090072713
    Abstract: 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: Application
    Filed: December 21, 2005
    Publication date: March 19, 2009
    Applicant: E.I. du Pont de Nemours and Company
    Inventors: Paul Anthony Sant, Matthew Stainer
  • Publication number: 20080309221
    Abstract: 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: Application
    Filed: December 29, 2005
    Publication date: December 18, 2008
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Charles D Lang, Stephan Claude De La Veaux, Paul Anthony Sant, Dennis Damon Walker, Stephen Sorich, Matthew Stainer
  • Publication number: 20080286487
    Abstract: 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: Application
    Filed: May 15, 2008
    Publication date: November 20, 2008
    Inventors: Charles D. Lang, Paul Anthony Sant, Alberto Goenaga
  • Publication number: 20070218582
    Abstract: 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: Application
    Filed: April 10, 2006
    Publication date: September 20, 2007
    Inventors: Charles D. Lang, Stephen Sorich, Charles Kenneth Taylor, Douglas Robert Anton, Alberto Goenaga, Paul Anthony Sant
  • Patent number: 6992326
    Abstract: 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: Grant
    Filed: August 3, 2004
    Date of Patent: January 31, 2006
    Assignee: DuPont Displays, Inc.
    Inventors: Charles Douglas MacPherson, Matthew Stainer, Michael Anzlowar, Paul Anthony Sant, Sughosh Venkatesh