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).
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Patent number: 11898011Abstract: Disclosed is a dianhydride having Formula I, and diamines having Formula IV and Formula VII In the formulas: Y is alkyl, silyl, ester, siloxane, oligosiloxane, polysiloxane, O, S, SO2, BR3, NR3, P(O)R3, unsubstituted or substituted carbocyclic aryl, or unsubstituted or substituted heteroaryl and deuterated analogs thereof; Ar2— Ar4 are the same or different and are carbocyclic aryl, heteroaryl, or substituted derivatives thereof; Q1 is a single bond, alkyl, silyl, ester, siloxane, oligosiloxane, polysiloxane, O, S, SO2, BR3, NR3, P(O)R3, unsubstituted or substituted carbocyclic aryl, or unsubstituted or substituted heteroaryl and deuterated analogs thereof; R1-R2 are the same or different at each occurrence and are F, CN, deuterium, alkyl, fluoroalkyl, unsubstituted or substituted carbocyclic aryl, unsubstituted or substituted heteroaryl, alkoxy, fluoroalkoxy, unsubstituted or substituted aryloxy, silyl, siloxy and deuterated analogs thereof; R3 is alkyl or unsubstituted or substituted carbocyclic arylType: GrantFiled: February 8, 2021Date of Patent: February 13, 2024Assignee: DUPONT ELECTRONICS, INC.Inventors: Viacheslav V Diev, Nora Sabina Radu
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Publication number: 20230074583Abstract: Disclosed is a polyimide film that exhibits: an in-plane coefficient of thermal expansion (CTE) that is less than 75 ppm/° C. between 50° C. and 250° C.; a glass transition temperature (Tg) that is greater than 250° C. for the polyimide film cured at 260° C. in air; a 1% TGA weight loss temperature that is greater than 450° C.; a tensile modulus that is between 1.5 GPa and 5.0 GPa; an elongation to break that is greater than 20%; an optical retardation at 550 nm that is less than 100 nm for a 10-?m film; a birefringence at 633 nm that is less than 0.002; a haze that is less than 1.0%; a b* that is less than 3; a yellowness index that is less than 5; and an average transmittance between 380 nm and 780 nm that is greater than 88%.Type: ApplicationFiled: November 7, 2022Publication date: March 9, 2023Inventors: Brian C. Auman, John Donald Summers, Nora Sabina Radu, Chai Kit Ngai, Wayne Atkinson, Wei Li, Jonathan Timothy Maeyer
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Patent number: 11527721Abstract: There is disclosed a compound having Formula I In Formula, I: Ar1 is selected from the group consisting of dibenzofuran, dibenzothiophene, or deuterated analogs thereof; Ar2 and Ar3 are the same or different and are hydrocarbon aryl, substituted derivatives thereof, or deuterated analogs thereof, with the proviso that Ar2 and Ar3 are not the same as Ar1; a is 0; and Ar1, Ar2, and Ar3 have no additional amino substituents.Type: GrantFiled: February 15, 2019Date of Patent: December 13, 2022Inventors: Norman Herron, Weiying Gao, Nora Sabina Radu, Ying Wang
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Publication number: 20220325045Abstract: Disclosed is a polyamic acid having Formula I In Formula I: Ra represents one or more different tetracarboxylic acid component residues; Rb represents one or more different aromatic diamine residues or aromatic diisocyanate residues; and 5-100 mol % of Rb has Formula II In Formula II: R1 through R6 are the same or different and are haloalkyl or haloalkoxy; R7 is the same or different at each occurrence and is deuterium, halogen, cyano, hydroxyl, alkyl, deuterated alkyl, heteroalkyl, alkoxy, heteroalkoxy, haloalkyl, haloalkoxy, silyl, siloxy, hydrocarbon aryl, substituted hydrocarbon aryl, heteroaryl, substituted heteroaryl, vinyl, or allyl; n is an integer from 0-10; x1 and x4 are the same or different and are an integer from 0-3; x2 and x3 are the same or different and are an integer from 0-2; and * indicates a point of attachment.Type: ApplicationFiled: April 21, 2020Publication date: October 13, 2022Inventors: VIACHESLAV V DIEV, NORA SABINA RADU, MICHAEL HENRY HOWARD, Jr., RAKESH NAMBIAR
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Patent number: 11121324Abstract: Disclosed are electrically conductive polymer compositions, and their use in organic electronic devices. The electrically conductive polymer compositions include an intrinsically electrically conductive polymer having Formula II: where Q, R, R?, R?, m, n, and o are defined in the present disclosure.Type: GrantFiled: May 25, 2017Date of Patent: September 14, 2021Inventors: Nora Sabina Radu, Arjan Zoombelt
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Publication number: 20210261734Abstract: Disclosed is a dianhydride having Formula I, and diamines having Formula IV and Formula VII In the formulas: Y is alkyl, silyl, ester, siloxane, oligosiloxane, polysiloxane, O, S, SO2, BR3, NR3, P(O)R3, unsubstituted or substituted carbocyclic aryl, or unsubstituted or substituted heteroaryl and deuterated analogs thereof; Ar2-Ar4 are the same or different and are carbocyclic aryl, heteroaryl, or substituted derivatives thereof; Q1 is a single bond, alkyl, silyl, ester, siloxane, oligosiloxane, polysiloxane, O, S, SO2, BR3, NR3, P(O)R3, unsubstituted or substituted carbocyclic aryl, or unsubstituted or substituted heteroaryl and deuterated analogs thereof; R1-R2 are the same or different at each occurrence and are F, CN, deuterium, alkyl, fluoroalkyl, unsubstituted or substituted carbocyclic aryl, unsubstituted or substituted heteroaryl, alkoxy, fluoroalkoxy, unsubstituted or substituted aryloxy, silyl, siloxy and deuterated analogs thereof; R3 is alkyl or unsubstituted or substituted carbocyclic aryl; aType: ApplicationFiled: February 8, 2021Publication date: August 26, 2021Inventors: VIACHESLAV V. DIEV, NORA SABINA RADU
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Publication number: 20210017335Abstract: Disclosed is a polyimide having a repeat unit structure of Formula III In Formula III: Ra represents one or more different tetracarboxylic acid component residues; and Rb represents one or more different aromatic diamine residues or aromatic diisocyanate residues. 5-100 mol % of Ra has Formula II In Formula II: R is H, halogen, cyano, hydroxyl, alkyl, heteroalkyl, alkoxy, heteroalkoxy, fluoroalkyl, silyl, hydrocarbon aryl, substituted hydrocarbon aryl, heteroaryl, substituted heteroaryl, ally, or vinyl; R2 is halogen, cyano, hydroxyl, alkyl, heteroalkyl, alkoxy, heteroalkoxy, fluoroalkyl, silyl, hydrocarbon aryl, substituted hydrocarbon aryl, heteroaryl, substituted heteroaryl, ally, or vinyl; R3 and R4 are the same or different and are alkyl, fluoroalkyl, or silyl; x and y are the same or different and are an integer from 0-2; and * indicates a point of attachment.Type: ApplicationFiled: April 1, 2019Publication date: January 21, 2021Inventors: Michael Henry Howard, Jr., Nora Sabina Radu, Greg A. Hostetler, Chai Kit Ngai, Brian C. Auman, John Donald Summers
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Patent number: 10879467Abstract: A hole transport copolymer having the following Formula III is disclosed herein: In some embodiments, A is a monomeric unit having Formula Ia or Formula IIa, B is a B is a monomeric unit having at least three points of attachment in the copolymer, E is the same or different at each occurrence and is selected from the group consisting of H, D, halide, alkyl, aryl, arylamino, siloxane, crosslinkable groups, deuterated alkyl, deuterated aryl, deuterated arylamino, deuterated siloxane, and deuterated crosslinkable groups, and x, y, and z are the same or different and are mole fractions, such that x+y+z=1, and x and y are non-zero.Type: GrantFiled: July 23, 2019Date of Patent: December 29, 2020Inventors: Nora Sabina Radu, Kerwin D. Dobbs, Adam Fennimore, Weiying Gao, Gene M. Rossi, Juergen Weber
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Patent number: 10749111Abstract: There is disclosed a compound having Formula I In Formula I: R1 and R2 are the same or different and are H or D; R3 is the same or different at each occurrence and D, CN, halogen, alkyl, alkoxy, silyl, germyl, deuterated alkyl, deuterated alkoxy, deuterated silyl, or deuterated germyl; a is an integer from 0-4; Q1 and Q2 are the same or different and are H, D, alkyl, deuterated alkyl, aryl, deuterated aryl, or a group having Formula II *-(L1)b-HT??(II) At least one of Q1 and Q2 is a group having Formula II. In Formula II: HT is the same or different at each occurrence and is a hole transport group; L1 is the same or different at each occurrence and is alkyl, aryl, substituted derivatives thereof, deuterated analogs thereof, or combinations thereof; b is the same or different at each occurrence and is 0 or 1; and * indicates a point of attachment.Type: GrantFiled: October 28, 2016Date of Patent: August 18, 2020Assignee: LG Chem, Ltd.Inventors: Nora Sabina Radu, Adam Fennimore, Gene M. Rossi
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Publication number: 20200216614Abstract: Disclosed is a polyimide film generated from a solution containing a polyamic acid in a high-boiling, aprotic solvent; wherein the polyamic acid comprises one or more tetracarboxylic acid components and one or more diamine components; and wherein at least one of the tetracarboxylic acid components is a quadrivalent organic group derived from a bent dianhydride or an aromatic dianhydride comprising —O—, —CO—, —NHCO—, —S—, —SO2—, —CO—O—, or —CR2— links, or a direct chemical bond between aromatic rings; and wherein at least one of the diamine components is a divalent organic group derived from a bent diamine or an aromatic diamine comprising the same links, or a direct chemical bond between aromatic rings; and wherein R is the same or different at each occurrence and is selected from the group consisting of H, F, alkyl, and fluoroalkyl.Type: ApplicationFiled: September 11, 2018Publication date: July 9, 2020Inventors: Brian C. Auman, John Donald Summers, Nora Sabina Radu, Chai Kit Ngai, Wayne Atkinson, Wei Li, Jonathan Timothy Maeyer
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Publication number: 20200172675Abstract: Disclosed is a solution containing a polyamic acid in a high-boiling, aprotic solvent; wherein the polyamic acid contains two or more tetracarboxylic acid components and one or more diamine components; and wherein at least one of the tetracarboxylic acid components is a quadrivalent organic group derived from an aliphatic dianhydride. Polyimide films made from the solutions are also disclosed, as are their methods of production and uses in electronic devices.Type: ApplicationFiled: August 8, 2018Publication date: June 4, 2020Inventors: Nora Sabina Radu, John Donald Summers, Brian C. Auman, Wayne Atkinson, Wei Li, Chai Kit Ngai
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Patent number: 10586929Abstract: There is provided a hole transport material having Formula I, Formula Ia, or Formula II: In the formulae: A is an aromatic moiety including at least one triarylamino group; B? is an aromatic moiety; E is an end group which is H, D, alkyl, aryl, halide, deuterated alkyl, or deuterated aryl; G is G1, G2, or a deuterated analog thereof where the asterisk represents the point of attachment; n is an integer greater than 0; and m1 and m2 represent non-zero mole fractions, such that m1+m2=1.Type: GrantFiled: December 9, 2014Date of Patent: March 10, 2020Assignee: LG Chem, Ltd.Inventors: Nora Sabina Radu, Adam Fennimore
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Publication number: 20190348607Abstract: A hole transport copolymer having the following Formula III is disclosed herein: In some embodiments, A is a monomeric unit having Formula Ia or Formula IIa, B is a B is a monomeric unit having at least three points of attachment in the copolymer, E is the same or different at each occurrence and is selected from the group consisting of H, D, halide, alkyl, aryl, arylamino, siloxane, crosslinkable groups, deuterated alkyl, deuterated aryl, deuterated arylamino, deuterated siloxane, and deuterated crosslinkable groups, and x, y, and z are the same or different and are mole fractions, such that x+y+z=1, and x and y are non-zero.Type: ApplicationFiled: July 23, 2019Publication date: November 14, 2019Inventors: Nora Sabina Radu, Kerwin D. Dobbs, Adam Fennimore, Weiying Gao, Gene M. Rossi, Juergen Weber
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Patent number: 10439140Abstract: There is provided a hole transport polymer having a carbazole group and an amino nitrogen having Formula I In the formula: Ar1, Ar2, and Ar4 are the same or different and are substituted or unsubstituted aryl groups or deuterated aryl groups; Ar3 is substituted or unsubstituted aryl groups or deuterated aryl groups; E is the same or different at each occurrence and is selected from the group consisting of H, D, halide, alkyl, aryl, siloxane, deuterated alkyl, deuterated aryl, deuterated siloxane, and a crosslinking group; R1-R2 are the same or different at each occurrence and are selected from the group consisting of D, F, CN, alkyl, fluoroalkyl, aryl, heteroaryl, amino, silyl, germyl, alkoxy, aryloxy, fluoroalkoxy, siloxane, siloxy, deuterated alkyl, deuterated partially-fluorinated alkyl, deuterated aryl, deuterated heteroaryl, deuterated amino, deuterated silyl, deuterated germyl, deuterated alkoxy, deuterated aryloxy, deuterated fluoroalkoxy, deuterated siloxane, deuterated siloxy, and crosslinking grType: GrantFiled: November 18, 2015Date of Patent: October 8, 2019Assignee: LG Chem, Ltd.Inventors: Nora Sabina Radu, Kerwin D. Dobbs, Adam Fennimore, Weiying Gao, Gene M. Rossi, Juergen Weber
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Publication number: 20190181344Abstract: There is disclosed a compound having Formula I In Formula, I: Ar1 is selected from the group consisting of dibenzofuran, dibenzothiophene, or deuterated analogs thereof; Ar2 and Ar3 are the same or different and are hydrocarbon aryl, substituted derivatives thereof, or deuterated analogs thereof, with the proviso that Ar2 and Ar3 are not the same as Ar1; a is 0; and Ar1, Ar2, and Ar3 have no additional amino substituents.Type: ApplicationFiled: February 15, 2019Publication date: June 13, 2019Inventors: Norman Herron, Weiying Gao, Nora Sabina Radu, Ying Wang
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Publication number: 20190097137Abstract: Disclosed are electrically conductive polymer compositions, and their use in organic electronic devices.Type: ApplicationFiled: May 25, 2017Publication date: March 28, 2019Inventors: Nora Sabina Radu, Arjan Zoombelt
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Patent number: 10199577Abstract: 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: GrantFiled: October 25, 2016Date of Patent: February 5, 2019Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Kyung-Ho Park, Nora Sabina Radu, Gary A Johansson, Adam Fennimore, William J Delaney, Daniel David LeCloux
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Patent number: 10134988Abstract: There is provided an electroactive system for forming an electroactive layer. The system includes: (a) a first electroactive material; (b) a facilitation additive; and (c) a first liquid medium. The facilitation additive is present during baking in an amount sufficient to enable the electroactive layer made therefrom to effectively resist mixing with a second liquid medium applied thereover after the electroactive system is deposited and baked at a temperature less than 350° C. for a predetermined time.Type: GrantFiled: December 11, 2014Date of Patent: November 20, 2018Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Adam Fennimore, Denis Yurievich Kondakov, Nora Sabina Radu
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Publication number: 20180287067Abstract: There is disclosed a compound having Formula I In Formula I: R1 and R2 are the same or different and are H or D; R3 is the same or different at each occurrence and D, CN, halogen, alkyl, alkoxy, silyl, germyl, deuterated alkyl, deuterated alkoxy, deuterated silyl, or deuterated germyl; a is an integer from 0-4; Q1 and Q2 are the same or different and are H, D, alkyl, deuterated alkyl, aryl, deuterated aryl, or a group having Formula II *-(L1)b-HT??(II) At least one of Q1 and Q2 is a group having Formula II. In Formula II: HT is the same or different at each occurrence and is a hole transport group; L1 is the same or different at each occurrence and is alkyl, aryl, substituted derivatives thereof, deuterated analogs thereof, or combinations thereof; b is the same or different at each occurrence and is 0 or 1; and * indicates a point of attachment.Type: ApplicationFiled: October 28, 2016Publication date: October 4, 2018Inventors: Nora Sabina Radu, Adam Fennimore, Gene M. Rossi
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Patent number: 9972783Abstract: This invention relates to triarylamine compounds and compositions including such compounds, that are useful in electronic applications. It also relates to electronic devices in which the active layer includes such a compound or composition. The triarylamine compound can be present as a hole transport material in a hole transport layer. The triarylamine compound can also be present in a photoactive layer in combination with an organometallic compound capable of electroluminescence having an emission maximum between 380 and 750 nm.Type: GrantFiled: March 18, 2016Date of Patent: May 15, 2018Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Nora Sabina Radu, Jerald Feldman, Daniel David Lecloux, Ying Wang, Adam Fennimore, Kerwin D Dobbs, Gene M Rossi, Charles D McLaren, Frederick P Gentry