Patents by Inventor Nora Sabina Radu

Nora Sabina Radu 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).

  • Publication number: 20130248847
    Abstract: There is disclosed a compound having Formula I In Formula I: Ar1 through Ar4 are the same or different and are aryl groups; L is a spiro group, an adamantyl group, bicyclic cyclohexyl, deuterated analogs thereof, or substituted derivatives thereof; R1 is the same or different at each occurrence and is D, F, alkyl, aryl, alkoxy, silyl, or a crosslinkable group, where adjacent R1 groups can be joined together to form an aromatic ring; R2 is the same or different at each occurrence and is H, D, or halogen; a is the same or different at each occurrence and is an integer from 0-4; and n is an integer greater than 0.
    Type: Application
    Filed: December 19, 2011
    Publication date: September 26, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Nora Sabina Radu, Adam Fennimore
  • Patent number: 8529796
    Abstract: The present invention relates to charge transport compositions. The invention further relates to electronic devices in which there is at least one active layer comprising such charge transport compositions.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 10, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Daniel David LeCloux, Eric Maurice Smith, Ying Wang, Norman Herron, Mark A Guidry, Nora Sabina Radu
  • Patent number: 8531100
    Abstract: This invention relates to deuterated compounds that are useful in electroluminescent applications. It also relates to electronic devices in which the active layer includes such a deuterated compound.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: September 10, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Norman Herron, Vsevolod Rostovtsev, Jeffrey A. Merlo, Michael Henry Howard, Jr., Adam Fennimore, Weiying Gao, Kalindi Dogra, Nora Sabina Radu, Weishi Wu, Eric Maurice Smith, Daniel David Lecloux
  • Patent number: 8497495
    Abstract: A compound having at least two diarylamino moieties and at least 10% deuteration.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: July 30, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Daniel David Lecloux, Adam Fennimore, Weiying Gao, Nora Sabina Radu, Michael Henry Howard, Jr., Gary A. Johansson, Kalindi Dogra, Eric Maurice Smith, Kyung-Ho Park
  • Patent number: 8487055
    Abstract: There is provided a polymer made from a monomer having Formula I: where: R and Y are independently selected from the group consisting of H, D, alkyl, fluoroalkyl, aryl, fluoroaryl, alkoxy, aryloxy, NR?2, R?, R? is a crosslinkable group; R? is independently selected from the group consisting of H, alkyl, fluoroalkyl, aryl, fluoroaryl, and R?; X is a leaving group; Z is C, Si, or N; Q is (ZR?n)b; a is an integer from 0 to 5; b is an integer from 0 to 20; c is an integer from 0 to 4; q is an integer from 0 to 7; and n is an integer from 1 to 2.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: July 16, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Nora Sabina Radu, Gene M. Rossi, Eric Maurice Smith, Yulong Shen, Weiying Gao, Reid John Chesterfield, Jeffrey A. Merlo, Daniel David Lecloux, Frederick P. Gentry
  • Patent number: 8440324
    Abstract: The present invention relates to novel copolymers, compositions comprising novel copolymers, and electronic devices comprising at least one layer containing the copolymer.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: May 14, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Nora Sabina Radu, Frederick P. Gentry, Gene M. Rossi, Gary A. Johansson
  • Patent number: 8420232
    Abstract: Disclosed are Binaphthyl-Arylamine Polymers having Formula I: In the Formula: Ar1 is an arylene; Ar2 is an aryl group; Ar3 is an arylene; Binap is a binaphthyl moiety; M is a conjugated moiety; and x, y and z are mole fractions such that x+y+z=1.0, with the proviso that x and y are not zero.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: April 16, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Kyung-Ho Park, Nora Sabina Radu
  • Publication number: 20130087779
    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 priming material to form a priming layer; exposing the priming layer patternwise with radiation resulting in exposed areas and unexposed areas; developing the priming layer to effectively remove the priming layer from the unexposed areas resulting in a first layer having a pattern of priming layer, wherein the pattern of priming layer has a second surface energy that is higher than the first surface energy; and forming the second layer by liquid depositions on the pattern of priming layer on the first layer.
    Type: Application
    Filed: June 16, 2011
    Publication date: April 11, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Kyung-Ho Park, Nora Sabina Radu, Gary A. Johansson, William J. Delaney, Adam Fennimore, Daniel David Lecloux
  • Publication number: 20130082251
    Abstract: There is disclosed a compound having Formula I or Formula I?: In Formula I and Formula I?: Ar1 and Ar2 are the same or different and are aryl groups; R1 through R5 are independently the same or different at each occurrence and are D, F, alkyl groups, aryl groups, alkoxy groups, silyl groups, or crosslinkable groups; R6 is H, D, or halogen; a through e are independently an integer from 0 to 4; f is 1 or 2; g is 0, 1 or 2; h is 1 or 2; and n is an integer greater than 0.
    Type: Application
    Filed: June 16, 2011
    Publication date: April 4, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Kyung-Ho Park, Nora Sabina Radu, Gary A. Johansson, Adam Fennimore, William J. Delaney, Daniel David Lecloux
  • Patent number: 8372525
    Abstract: There is provided an active layer containing a dopant material and a host material, wherein the host material has an HPLC purity of at least 99.9% and an impurity absorbance no greater than 0.01. There is also provided an electronic device containing the active layer.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: February 12, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Daniel David Lecloux, Reid John Chesterfield, Jeffrey A. Merlo, Eric Maurice Smith, Nora Sabina Radu
  • Publication number: 20130009142
    Abstract: The present invention relates to charge transport compositions. The invention further relates to electronic devices in which there is at least one active layer comprising such charge transport compositions.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: NORMAN HERRON, MARK A. GUIDRY, DANIEL DAVID LECLOUX, NORA SABINA RADU, ERIC MAURICE SMITH, YING WANG
  • Patent number: 8293139
    Abstract: The present invention relates to charge transport compositions. The invention further relates to electronic devices in which there is at least one active layer comprising such charge transport compositions.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: October 23, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Daniel David Lecloux, Eric Maurice Smith, Ying Wang, Norman Herron, Mark A. Guidry, Nora Sabina Radu
  • Patent number: 8287769
    Abstract: The present invention relates to charge transport compositions. The invention further relates to electronic devices in which there is at least one active layer comprising such charge transport compositions.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: October 16, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Daniel David Lecloux, Eric Maurice Smith, Ying Wang, Norman Herron, Mark A. Guidry, Nora Sabina Radu
  • Patent number: 8242223
    Abstract: There is provided a polymer made from a monomer having Formula I: where: R and Y are independently selected from the group consisting of H, D, alkyl, fluoroalkyl, aryl, fluoroaryl, alkoxy, aryloxy, NR?2, R?, R? is a crosslinkable group; R? is independently selected from the group consisting of H, alkyl, fluoroalkyl, aryl, fluoroaryl, and R?; X is a leaving group; Z is C, Si, or N; Q is (ZR?n)b; a is an integer from 0 to 5; b is an integer from 0 to 20; c is an integer from 0 to 4; q is an integer from 0 to 7; and n is an integer from 1 to 2.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: August 14, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Nora Sabina Radu, Gene M. Rossi, Eric Maurice Smith, Yulong Shen, Weiying Gao, Reid John Chesterfield, Jeffrey A. Merlo, Daniel David Lecloux, Frederick P. Gentry
  • Patent number: 8236990
    Abstract: The present invention relates to triarylamine compounds, compositions comprising such compounds, and electronic devices and applications comprising at least one layer containing at least one of the new compounds. The compounds can be used as monomers to create homopolymers or copolymers.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: August 7, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Eric Maurice Smith, Nora Sabina Radu, Norman Herron, Arthur Dabrowski, Frederick P. Gentry, Gene M. Rossi, Gary A. Johansson
  • Publication number: 20120187382
    Abstract: An organic light-emitting diode is provided having an anode, a cathode, and an organic active layer therebetween. The organic active layer includes a deuterated compound and the device has a calculated half-life at 1000 nits of at least 5000 hours.
    Type: Application
    Filed: December 22, 2009
    Publication date: July 26, 2012
    Applicant: E.I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Vsevolod Rostovtsev, Weiying Gao, Gary A. Johansson, Yulong Shen, Adam Fennimore, Kalindi Dogra, Hong Meng, Weishi Wu, Michael Henry Howard, JR., Ralph Birchard Lloyd, Nora Sabina Radu, Norman Herron, Daniel David Lecloux, Eric Maurice Smith, Che-Hsiung Hsu, Kyung-Ho Park, Jeffrey A. Merlo, Christina M. Older, Jerald Feldman, Ying Wang
  • Publication number: 20120077955
    Abstract: There is provided a polymer made from a monomer having Formula I: where: R and Y are independently selected from the group consisting of H, D, alkyl, fluoroalkyl, aryl, fluoroaryl, alkoxy, aryloxy, NR?2, R?, R? is a crosslinkable group; R? is independently selected from the group consisting of H, alkyl, fluoroalkyl, aryl, fluoroaryl, and R?; X is a leaving group; Z is C, Si, or N; Q is (ZR?n)b; a is an integer from 0 to 5; b is an integer from 0 to 20; c is an integer from 0 to 4; q is an integer from 0 to 7; and n is an integer from 1 to 2.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 29, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: NORA SABINA RADU, Gene M. Rossi, Eric Maurice Smith, Yulong Shen, Weiying Gao, Reid John Chesterfield, Jeffrey A. Merlo, Daniel David Lecloux, Frederick P. Gentry
  • Publication number: 20120068166
    Abstract: This invention relates to dibenzothiopyran compounds. This invention also relates to layers and devices including at least one of these compounds.
    Type: Application
    Filed: November 29, 2011
    Publication date: March 22, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: NORA SABINA RADU, Steven W. Shuey, Ying Wang
  • Publication number: 20120065432
    Abstract: A compound having Formula I, Formula II, or Formula III: Ar1 may independently be phenylene, substituted phenylene, naphthylene, or substituted naphthylene. Ar2 is the same or different at each occurrence and is an aryl group. M is the same or different at each occurrence and is a conjugated moiety. T1 and T2 are independently the same or different at each occurrence and are conjugated moieties which are connected in a non-planar configuration; a and e are the same or different at each occurrence and are an integer from 1 to 6; b, c, and d are mole fractions such that b+c+d=1.0, with the proviso that c is not zero, and at least one of b and d is not zero, and when b is zero, M has at least two triarylamine units; and n is an integer greater than 1.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 15, 2012
    Applicant: E.I DU PONT DE NEMOURS AND COMPANY
    Inventors: GARY A. JOHANSSON, Eric Maurice Smith, Reid John Chesterfield, Michael Henry Howard, JR., Kyung-Ho Park, Nora Sabina Radu, Gene M. Rossi, Frederick P. Gentry, Troy C. Gehret, Daniel David Lecloux, Adam Fennimore
  • Publication number: 20120013245
    Abstract: A compound having Formula I, Formula II, or Formula III: Ar1 may independently be phenylene, substituted phenylene, naphthylene, or substituted naphthylene. Ar2 is the same or different at each occurrence and is an aryl group. M is the same or different at each occurrence and is a conjugated moiety. T1 and T2 are independently the same or different at each occurrence and are conjugated moieties which are connected in a non-planar configuration; a and e are the same or different at each occurrence and are an integer from 1 to 6; b, c, and d are mole fractions such that b+c+d=1.0, with the proviso that c is not zero, and at least one of b and d is not zero, and when b is zero, M has at least two triarylamine units; and n is an integer greater than 1.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: GARY A. JOHANSSON, Eric Maurice Smith, Reid John Chesterfield, Michael Henry Howard, JR., Kyung-Ho Park, Nora Sabina Radu, Gene M. Rossi, Frederick P. Gentry, Troy C. Gehret, Daniel David Lecloux, Adam Fennimore