Patents Assigned to E. I. Du Pont de Nemours and Company
  • Patent number: 9954174
    Abstract: There is provided a copolymer having Formula I In Formula I: A is a monomeric unit containing at least one triarylamine group; B? is a monomeric unit having at least three points of attachment in the copolymer; C? is an aromatic monomeric unit or a deuterated analog thereof; E is the same or different at each occurrence and can be H, D, halide, alkyl, silyl, germyl, aryl, arylamino, siloxane, a crosslinkable group, deuterated alkyl, deuterated silyl, deuterated germyl, deuterated aryl, deuterated arylamino, deuterated siloxane, or a deuterated crosslinkable group; a, b, and c are the same or different and are mole fractions, such that a+b+c=1, and a and b are non-zero.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: April 24, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Nora Sabina Radu, Juergen Weber, Adam Fennimore, Arjan Zoombelt, Phillip Sharrow, Michael Henry Howard, Jr., Tiffany N Hoerter, Gene M Rossi
  • Patent number: 9944846
    Abstract: This invention relates to a composition including (a) a dopant, (b) a first host having at least one unit of Formula I, and (c) a second host compound having Formula II. The formulae have the structures: where Q is a fused ring linkage having the formula In Formula I: Ar1 is an aromatic group including at least one electron-withdrawing group or a deuterated analog; Ar2 is an aryl group, an aromatic group including at least one electron-withdrawing group or a deuterated analog; R1 and R2 are the same or different at each occurrence and are H, D, aryl or deuterated aryl. In Formula II: R3 is the same or different at each occurrence and is D, aryl, or deuterated aryl, with the proviso that at least one R3 is aryl or deuterated aryl; R4 and R5 are the same or different at each occurrence and are D, aryl, or deuterated aryl; a is an integer from 1-4; and b and c are the same or different and are an integer from 0-4.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: April 17, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Ying Wang, Steven Kit Chow, Norman Herron, Michael Henry Howard, Jr.
  • Patent number: 9947872
    Abstract: There is disclosed a compound having Formula I In Formula I: Ar1 and Ar3 are the same or different and are aryl groups; Ar2 and Ar4 are the same or different and are aryl groups; L is the same or different at each occurrence and can be H, D, halogen, aryl, arylamino, crosslinkable groups, deuterated aryl, deuterated arylamino, or deuterated crosslinkable groups; R1-R4 are the same or different and can be H, D, alkyl, alkoxy, aryl, aryloxy, silyl, deuterated alkyl, deuterated alkoxy, deuterated aryl, deuterated aryloxy, or deuterated silyl; R5-R8 are the same or different and can be D, F, alkyl, aryl, alkoxy, aryloxy, silyl, crosslinkable groups, deuterated alkyl, deuterated alkoxy, deuterated aryl, deuterated aryloxy, or deuterated silyl, where adjacent R5-R8 groups can be joined together to form an aromatic ring; a and b are the same or different and are an integer from 0-3; c and d are the same or different at each occurrence and are an integer from 0-4; m and q are the same or different and are an inte
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: April 17, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Adam Fennimore, Nora Sabina Radu
  • Patent number: 9937657
    Abstract: Disclosed is a method of forming an article from a unidirectional (UD) tape comprising a continuous unidirectional fiber impregnated with polymer resin. The method includes winding a continuous section of cold UD tape to form a closed loop preform (38) comprising a plurality of stacked layers while discretely welding and consolidating the wound preform by heating and applying pressure.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: April 10, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Martyn Douglas Wakeman, Craig Norrey
  • Patent number: 9938537
    Abstract: Methods and compositions for increasing a plant's resistance to an insect pest such as the corn rootworm are provided. Methods are provided for overexpression of Crw2, or variants thereof, in a host plant or plant cell to increase resistance to an insect pest in a plant such as maize. Methods are also provided for identifying variants of Crw2 that when incorporated into a plant via transgenic or traditional breeding means increase resistance to an insect pest in a plant such as maize. Also provided are methods for increasing resistance by overexpressing Crw1 and Crw2.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: April 10, 2018
    Assignees: Purdue Research Foundation, Pioneer Hi-Bred International, Inc., E.I. du Pont de Nemours and Company
    Inventors: Gurmukh S. Johal, Bailin Li, Dilbag S. Multani
  • Patent number: 9938248
    Abstract: Disclosed is a method for preparing a compound of Formula 1 wherein Q and Z are as defined in the disclosure comprising distilling water from a mixture comprising a compound of Formula 2, a compound of Formula 3, a base comprising at least one compound selected from the group consisting of alkaline earth metal hydroxides of Formula 4 wherein M is Ca, Sr or Ba, alkali metal carbonates of Formula 4a wherein M1 is Li, Na or K, 1,5-diazabicyclo[4.3.0]non-5-ene and 1,8-diazabicyclo[5.4.0]undec-7-ene, and an aprotic solvent capable of forming a low-boiling azeotrope with water.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: April 10, 2018
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Gary David Annis
  • Patent number: 9931830
    Abstract: The invention pertains to a printing form and a process for preparing a polymeric printing form from a curable composition that includes a multifunctional urethane in a specified reactive group equivalent weight range, and an initiator. The process includes coating the curable composition onto a supporting substrate, such as a print cylinder, to form a layer, curing the layer with heat or by exposure to actinic radiation, and engraving the resulting cured layer to form at least one printing cell in the cured layer. The process prepares novel polymeric printing forms, particularly novel polymeric gravure printing forms, having a cured polymer-based composition layer that is engravable, resistant to solvent inks, and capable of printing gravure-quality images. The present invention shortens the time to prepare gravure printing cylinders and removes the need for and disposal of toxic heavy metals such as copper and chrome associated with conventional gravure print cylinder preparation.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: April 3, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Steven W Shuey, Adrian Lungu, Mukesh C Shah, Garret D Figuly
  • Patent number: 9934883
    Abstract: Halogen-free flame retardant compositions comprising copolyetherester thermoplastic elastomers, melamine cyanurate and epoxy-containing compounds and cables and wires made from such flame retardant polymer composition provide good electrical insulation resistance during use.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: April 3, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Eleni Karayianni, Judith Alison Peacock
  • Patent number: 9934880
    Abstract: This invention relates to a copper thick film paste composition paste comprising copper powder, a Pb-free, Bi-free and Cd-free borosilicate glass frit, ruthenium-based powder, and an organic vehicle. The invention also provides methods of using the copper thick film paste composition to make a copper conductor on a substrate. Typical substrates are selected from the group consisting of aluminum nitride, aluminum oxide and silicon nitride.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: April 3, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Marc Henry Labranche
  • Patent number: 9926278
    Abstract: Disclosed are compounds of Formula I, including all stereoisomers, (N-oxides), and salts thereof, wherein A and R are as defined in the disclosure. Also disclosed is a method for preparing a compound of Formula I, comprising reacting a compound of Formula II with an aroyl enolate salt of Formula III in the presence of an acid in an aqueous solvent mixture, wherein A, R and M are as defined in the disclosure.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: March 27, 2018
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Kanu Maganbhai Patel
  • Patent number: 9926415
    Abstract: The present disclosure is directed to a base film having a chemically converted polyimide, a particulate polyimide matting agent having a density from 1.3 to 1.5 g/cc and either a non-carbon black pigment or a dye. The particulate polyimide matting agent is present in an amount from 1.6 to 20 weight percent of the base film.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: March 27, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas Edward Carney, Jeffrey Michael Bartolin, Meredith L. Dunbar, Scott John Herrmann
  • Patent number: 9926541
    Abstract: Compositions are disclosed herein comprising poly alpha-1,3-1,6-glucan with a weight average degree of polymerization (DPw) of at least 1000. This glucan polymer comprises at least 30% alpha-1,3 linkages and at least 30% alpha-1,6 linkages. Further disclosed are glucosyltransferase enzymes that synthesize poly alpha-1,3-1,6-glucan. Ether derivatives of poly alpha-1,3-1,6-glucan and methods of using such derivatives as viscosity modifiers are also disclosed.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: March 27, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Jayme L Paullin, Mark S Payne, T Joseph Dennes, Yefim Brun, Rakesh Nambiar, Thomas Scholz
  • Patent number: 9926576
    Abstract: A fermentation process for the production of ethanol from natural sources, such as corn, comprising introducing a fermentable sugar, an inoculant, and a stabilized chlorine dioxide into a fermentation system is disclosed. The stabilized chlorine dioxide is added preventatively to the fermentation system, at concentrations in the fermentation system of acetic acid no greater than 0.30% (weight/volume) and lactic acid no greater than 0.60% (weight/volume). The stabilized chlorine dioxide is added in an amount effective to substantially prevent growth of bacteria.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: March 27, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Eric Guy Sumner, Derrick Okull, Dwayne William Dischert
  • Patent number: 9918485
    Abstract: Soy protein products obtained from high oleic soybeans, wherein such products, have improved whiteness, reduced viscosity and reduced gel-strength, are described. Use of such products in food, beverage and animal feed are also disclosed.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: March 20, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Susan Knowlton, Charles T Blaisdell
  • Patent number: 9920316
    Abstract: Methods and compositions are provided which employ a silencing element that, when ingested by a pest, such as a Coleopteran plant pest or a Diabrotica plant pest, decrease the expression of a target sequence in the pest. In specific embodiments, the decrease in expression of the target sequence controls the pest and thereby the methods and compositions are capable of limiting damage to a plant. The present invention provides various target polynucleotides set forth in any one of SEQ ID NOS: disclosed herein, (but not including the forward and reverse primers.) or active variants and fragments thereof, or complements thereof, wherein a decrease in expression of one or more of the sequences in the target pest controls the pest (i.e., has insecticidal activity). Further provided are silencing elements which when ingested by the pest decrease the level of the target polypeptide and thereby control the pest. In specific embodiments, the pest is D. virgifera virgifera, D. barberi, D. virgifera zeae, D. speciosa, D.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 20, 2018
    Assignees: PIONEER HI-BRED INTERNATIONAL, INC., E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Xu Hu, James Presnail, Nina Richtman, Scott Diehn, Michelle Van Allen, Lisa Procyk
  • Patent number: 9920030
    Abstract: Disclosed are compounds of Formulae 1, 1A, 1B and 1C including all geometric and stereoisomers, N-oxides, and salts thereof, wherein R1, R2, R4a1, R4a2, A, Aa, G, M, W, Z1, Z3, X, J, J1 and n are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling plant disease caused by a fungal pathogen comprising applying an effective amount of a compound or a composition of the invention.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: March 20, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Robert James Pasteris, Mary Ann Hanagan
  • Patent number: 9913504
    Abstract: The present invention relates to a flame resistant thermal liner comprising a nonwoven sheet comprising nanofibers of a synthetic polymer having an limiting oxygen index of at least 21, a mean flow pore of 10 micrometers or less, a thickness air permeability of 25 to 6000 cubic feet per min?micrometers (12 to 2880 cubic meters per square meter per min?micrometers), and an average thickness T1; and a thermally stable flame resistant fabric attached to an outer surface of the nonwoven sheet, the fabric having an average thickness T2; a surface of the thermally stable fabric being in contact with a surface of the nonwoven sheet; wherein T1 and T2 are selected such that the ratio of T1 to T2 is less than 0.75. The invention also relates to a flame resistant composite fabric comprising the flame resistant thermal liner and a garment comprising this flame resistant composite fabric.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: March 13, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Natalia V Levit, Richard Hall Young
  • Patent number: 9909110
    Abstract: Compositions and methods comprising polynucleotides and polypeptides having meganuclease activity are provided. Further provided are nucleic acid constructs, yeast, plants, plant cells, explants, seeds and grain having the meganuclease sequences. Various methods of employing the meganuclease sequences are provided. Such methods include, for example, methods for producing a meganuclease with increased activity at a wide range of temperatures, methods for producing a yeast, plant, plant cell, explant or seed comprising a meganuclease with increased activity.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: March 6, 2018
    Assignees: E. I. DU PONT DE NEMOURS AND COMPANY, PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Ericka Bermudez, Andrew Mark Cigan, James English, Saverio Carl Falco, Huirong Gao, Lu Liu, Zhan-Bin Liu, Azalea Ong, Sergei Svitashev, Joshua K Young
  • Patent number: 9908992
    Abstract: Curing fluoroelastomers with curing agents of formulas (I), (II), (III), and (IV): wherein each of R1, R2, R3, R4, R6, R7, R8, and R9, is selected from the group consisting of H; halogen atom; C1 to C4 alkyl groups in which the alkyl group is linear, branched, or cyclic; OR?; and aromatic groups; R5 is H; and R? is selected from the group consisting of C1 to C4 alkyl groups in which the alkyl group is linear, branched, or cyclic; and phenyl.
    Type: Grant
    Filed: September 26, 2015
    Date of Patent: March 6, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Peter Anthony Fox, Stephen E Burkhardt, Christopher P Junk, Shuhong Wang
  • Publication number: 20180062007
    Abstract: The present invention provides a thick-film paste for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal, and a lead-tellurium-lithium-oxide dispersed in an organic medium.
    Type: Application
    Filed: June 23, 2017
    Publication date: March 1, 2018
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Alan Frederick Carroll, KENNETH WARREN HANG, BRIAN J. LAUGHLIN, KURT RICHARD MIKESKA, CARMINE TORARDI, PAUL DOUGLAS VERNOOY