Patents Assigned to E
  • Processes for reducing color in polytrimethylene ether glycol polymers
    Patent number: 7745668
    Abstract: Processes for reducing color in PO3G are provided. The processes include contacting PO3G with an activated carbon and then separating the PO3G from the activated carbon by, for example, filtration. The process provides PO3G having an APHA color less than that before contact with the absorbent. The processes are desirably used for polymers having a molecular weight of about 250 to about 5000.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hari Babu Sunkara, Hiep Quang Do
  • Process for producing a cable with a recyclable coating comprising a thermoplastic polymer and a dielectric liquid
    Patent number: 7744950
    Abstract: A process for producing a cable, such as, for medium-tension or high-tension power transmission or distribution, having at least one coating layer made of a thermoplastic polymer material. The process includes at least the following steps: (a) extruding a thermoplastic material of at least one thermoplastic polymer and at least one dielectric liquid; (b) passing the thermoplastic material through at least one static mixer; and (c) depositing and shaping the thermoplastic material around a conductor belonging to the cable so as to obtain a layer of thermoplastic coating on the conductor.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: June 29, 2010
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Sergio Belli, Alberto Bareggi, Gaia Dell'Anna, Pier Luigi Folcini, Cristiana Scelza
  • Flash-spun sheet material
    Patent number: 7744989
    Abstract: This invention relates to improved plexifilamentary sheet material useful in protective apparel and filtration media, which material is comprised of substantially continuous polyethylene plexifilamentary fiber strands and has a Frazier Permeability, normalized to 1.0 oz/yd2 basis weight, of at least 2 cfm/ft2.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Anthony Marin, Larry R. Marshall, Barbara K. O'Rourke
  • Water dispersible polyanilines made with polymeric acid colloids for electronics applications
    Patent number: 7744777
    Abstract: An electronic device is provided which is a thin field effect transistor, a field effect resistance device, photosensor, photoswitch, light-emitting diode, light-emitting diode display, phototransistor, phototube, IR detector, diode laser, electrochemic displays, electromagnetic shielding device, solid electrolyte capacitors, energy storage device, memory storage device, biosensor, photoconductive cell, photovoltaic device, solar cell or diode, and comprises at least one layer comprising a composition comprising at least one polyaniline and at least one colloid-forming polymeric acid. Methods for making such devices are also provided.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Frank P. Uckert
  • Method and device for producing slots in workpieces
    Patent number: 7743804
    Abstract: A method and a device for producing slots in workpieces are disclosed. An oscillatory drive is provided, on the output shaft of which a saw blade is accommodated by one end, and at the other end of which a cutting edge is provided. The oscillatory drive is positioned on a workpiece with a defined angle between the workpiece surface and the saw blade, the saw blade being driven in an oscillating manner and moved along a guide in a direction extending radially in relation to the output shaft. Connecting elements can be inserted into slots produced on two workpieces in this way so that they match and can be adhesively bonded to the two workpieces, in order to produce a permanent and precise connection between the workpieces.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: June 29, 2010
    Assignee: C. & E. Fein GmbH
    Inventor: Walter Thomaschewski
  • Composition of polyimide and sterically-hindered hydrophobic epoxy
    Patent number: 7745516
    Abstract: Water absorption resistant polyimide/epoxy-based compositions, like pastes (or solutions), are particularly useful to make electronic screen-printable materials and electronic components. A group of hydrophobic epoxies (and soluble polyimides) was discovered to be particularly resistant to moisture absorption. The polyimide/epoxy pastes made with these epoxies (and these polyimides) may optionally contain thermal crosslinking agents, adhesion promoting agents, blocked isocyanates, and other inorganic fillers. The polyimide/epoxy pastes of the present invention can have a glass transition temperature greater than 250° C., a water absorption factor of less than 2%, and a positive solubility measurement.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas Eugene Dueber, John D. Summers, Brian C. Auman, Munirpallam Appadorai Subramanian, Nyrissa S. Rogado
  • Extrusion process
    Patent number: 7744794
    Abstract: The present invention relates to the extrusion of a composition comprising tetrafluoroethylene/hexafluoropropylene copolymer, 10-60 wt % inorganic particulate filler, and hydrocarbon polymer for dispersing the filler in the copolymer, preferably 0.1 to 5 wt % hydrocarbon polymer, at low temperatures, e.g. up to 650° F. (343° C.).
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: June 29, 2010
    Assignees: E. I. du Pont de Nemours and Company, AlphaGary Corporation
    Inventors: Yevgeniy I. Globus, Mark A. Jozokos, John L. Netta, George Martin Pruce, Sundar Kilnagar Venkataraman
  • Process for enhancing the resolution of a thermally transferred pattern
    Patent number: 7744717
    Abstract: Provided are processes for enhancing the resolution of a thermally transferred pattern on an imaged thermal transfer receiver, wherein the imaged thermal transfer receiver comprises a surface having an exposed portion and a non-exposed portion of one or more thermally transferred layer(s), comprising: (a) contacting said surface with an adhesive layer for a contact period to provide a laminate; (b) separating said adhesive layer from the laminate to provide a treated thermal transfer receiver having a surface substantially free of said non-exposed portion of one or more thermally transferred layer(s). The processes are useful in the fabrication of electronic devices including thin film transistors, circuits, electromagnetic interference shields, touchpad sensors and other electronic devices.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Gerald Donald Andrews, Richard Kevin Bailey, Graciela Beatriz Blanchet, John W. Catron, Feng Gao, Gary Delmar Jaycox, Lynda Kaye Johnson, Roupen Leon Keusseyan, Jeffrey Scott Meth, Frank S. Principe, Rinaldo S. Schiffino, Robert Mar Yohannan
  • Azeotropic compositions comprising fluorinated olefins for cleaning applications
    Patent number: 7744774
    Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z—C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
  • Catalytic conversion of ethanol and methanol to an isobutanol-containing reaction product using a thermally decomposed hydrotalcite/metal
    Patent number: 7745672
    Abstract: Hydrotalcite/metal carbonate combinations are partially or fully thermally decomposed to provide catalysts useful for the conversion of ethanol and methanol to a reaction product comprising isobutanol.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kostantinos Kourtakis, Michael B. D'Amore, Leo Ernest Manzer
  • LANTHANUM-PROMOTED SUPPORTED METAL CATALYSTS AND PROCESS FOR PRODUCING GUERBET ALCOHOLS USING SAME
    Publication number: 20100160692
    Abstract: The present invention relates to novel catalyst compositions and their use in a process for the catalytic conversion of ethanol to a reaction product comprising 1-butanol. The catalysts comprise Group II metal salts selected from the group consisting of oxides, carbonates, bicarbonates, hydroxides, and mixtures thereof, supported on a lanthanum-promoted oxide containing alumina.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 24, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Kostantinos KOURTAKIS, Ronnie Ozer
  • GENES THAT INCREASE PEPTIDE PRODUCTION
    Publication number: 20100159513
    Abstract: Several endogenous genes have been identified in Escherichia coli, the overexpression of which increases recombinant peptide production. Increasing the copy number of aroB, aroK, proB, or crl increases the amount of a recombinant peptide produced by a host cell.
    Type: Application
    Filed: November 17, 2009
    Publication date: June 24, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPNAY
    Inventors: Qiong Cheng, Kevin Michael Croker, Kristin Ruebling-Jass, Hong Wang, Jianzhong Zhang
  • Ethylene-Tetrafluoroethylene Carboxylic Acids and Salts
    Publication number: 20100160584
    Abstract: Polyfluorinated carboxylic acids and their salts containing an ethylene-tetrafluoroethylene moiety, which are useful as surfactants in a process for the dispersion polymerization of fluorinated monomer in an aqueous polymerization medium.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 24, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Weiming Qiu
  • MECHANICALLY RELIABLE SOLAR CELL MODULES
    Publication number: 20100154867
    Abstract: A thin film solar cell module comprising thin film solar cells deposited on a first float glass sheet, an ionomer encapsulant sheet and a float glass protective sheet.
    Type: Application
    Filed: November 25, 2009
    Publication date: June 24, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Stephen J. Bennison, Kristof Proost, Richard Allen Hayes
  • COMPOSITIONS AND PROCESSES FOR FORMING PHOTOVOLTAIC DEVICES
    Publication number: 20100154875
    Abstract: Photovoltaic cells, including silicon solar cells, and methods and compositions for making such photovoltaic cells are provided. A silicon substrate having p-type silicon base and an n-type silicon layer is provided with a silicon nitride layer, an exchange metal in contact with the silicon nitride layer, and a non-exchange metal in contact with the exchange metal. This assembly is fired to form a metal silicide contact on the silicon substrate, and a conductive metal electrode in contact with the metal silicide contact. The exchange metal is from nickel, cobalt, iron, manganese, molybdenum, and combinations thereof, and the non-exchange metal is from silver, copper, tin, bismuth, lead, antimony, arsenic, indium, zinc, germanium, gold, cadmium, berrylium, and combinations thereof.
    Type: Application
    Filed: November 13, 2009
    Publication date: June 24, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPNAY & NORTH CAROLINA STATE UNIVERSITY
    Inventors: William J. Borland, Howard David Glicksman, Jon-Paul Maria
  • Aqueous Polymerization of Fluorinated Monomer Using Hydrogen Containing Branched Fluoroether Surfactant
    Publication number: 20100160552
    Abstract: A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and fluorosurfactant having the formula (I) RfCH2OCF(CF3)C(O)OM??(I) wherein Rf is a linear or branched perfluoroalkyl group with 2 to 5 carbon atoms, and M is H, NH4, Li, Na, or K.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 24, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Roman B. Larichev
  • ABSORPTION POWER CYCLE SYSTEM
    Publication number: 20100154419
    Abstract: An absorption power cycle system utilizes the working fluid from an absorption circuit to produce mechanical work. Such a system is useful in a wide range of absorption cycle applications.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 24, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: KONSTANTINOS KONTOMARIS
  • ORGANIC SOLVENT PRETREATMENT OF BIOMASS TO ENHANCE ENZYMATIC SACCHARIFICATION
    Publication number: 20100159518
    Abstract: Biomass is pretreated using an organic solvent solution under alkaline conditions in the presence of one of more sulfide (hydrosulfide) salt and optionally one or more additional nucleophile to fragment and extract lignin. Pretreated biomass is further hydrolyzed with a saccharification enzyme consortium. Fermentable sugars released by saccharification may be utilized for the production of target chemicals by fermentation.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 24, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Bruce A. Diner, Janine Fan
  • Standing holder for bottles and glasses
    Patent number: D618525
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: June 29, 2010
    Assignee: G.A.P. Design S.N.C. di Garnero Elena e Pezzetti Sara
    Inventors: Elena Garnero, Sara Pezzetti
  • Vacuum waste system
    Patent number: D618775
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: June 29, 2010
    Assignee: B/E Aerospace, Inc.
    Inventors: Christopher Hardwick, Mark A. Pondelick, Thao Hoang, Steven Whisler