Patents Assigned to E
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Publication number: 20100200798Abstract: A process is disclosed for the manufacture of CF3CF=CH2 and CF3CH=CHF. The process involves dehydrofluorinating CF3CHFCH2F in the presence of a dehydrofluorination catalyst to produce a product mixture comprising CF3CF=CH2 and CF3CH=CHF, and recovering said CF3CF=CH2 and CF3CH=CHF from the product mixture. The present invention also provides a composition comprising (a) the Z-isomer of CF3CH=CHF and (b) HF; wherein the HF is present in an effective amount to form an azeotropic combination with the Z-CF3CH=CHF.Type: ApplicationFiled: April 13, 2010Publication date: August 12, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: VELLIYUR NOTT MALLIKARJUNA RAO, Mario Joseph Nappa, Allen Capron Sievert
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Publication number: 20100200283Abstract: The insulation paste of the present invention contains (a) a glass powder, and (b) an organic solvent, wherein one or both of alumina (Al203) and titanium oxide (TiO2) are contained in the paste as a glass diffusion inhibitor, and the content of this glass diffusion inhibitor is 12 to 50% by weight based on the content of inorganic component in the paste.Type: ApplicationFiled: April 27, 2010Publication date: August 12, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Akira Inaba, Masaki Hamaguchi, Naoto Nakajima
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Publication number: 20100203167Abstract: Disclosed herein are azeotrope compositions comprising 1,2,3,3,3-pentafluoropropene and hydrogen fluoride. The azeotrope compositions are useful in processes to produce and in processes to purify 1,2,3,3,3-pentafluoropropene. Additionally, disclosed herein are azeotrope and near-azeotrope compositions comprising 1,1,1,2,3,4,4,5,5,5-decafluoropentane and hydrogen fluoride.Type: ApplicationFiled: April 26, 2010Publication date: August 12, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Ralph Newton Miller, Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
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Publication number: 20100200519Abstract: A method for removing the high particle size tail of the particle size distribution of a slurry while leaving desirable smaller particles in the slurry. The method involves providing a filter media having a first and second side and being formed of at least one sheet of a fabric that has at least one layer comprising polymeric fibers having a mean number average fiber diameter of less than 1000 nm. A slurry stream is then supplied to one face of the fabric. The stream has a multiplicity of particle sizes comprising a first set of particles of maximum dimension less than 0.1 microns and a second set of particles of maximum individual dimension of greater than 0.45 microns to the first side of said filter media. The slurry stream is passed through said filter media to the second side thereof whereby at least a portion of the larger particles in the slurry are retained on the first side of said media. The filtration efficiency of the fabric towards the first set of particles is less than 0.Type: ApplicationFiled: December 9, 2009Publication date: August 12, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: YOGESHWAR K. VELU, Timothy Frederick Compton
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Publication number: 20100204522Abstract: Processes for preparing dibutyl ethers from isobutanol using an ionic liquid.Type: ApplicationFiled: September 5, 2008Publication date: August 12, 2010Applicant: E. I. Du Pont De Nemours and CompanyInventors: Mark Andrew Harmer, Michael B. D'Amore
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Publication number: 20100204436Abstract: Processes for preparing relatively high molecular weight poly(trimethylene ether)glycol employing a cocatalyst system are provided.Type: ApplicationFiled: February 9, 2009Publication date: August 12, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Yanhui Niu, Zuohong Yin
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Publication number: 20100201651Abstract: A first apparatus for displaying drawings comprises a housing having an aperture, a drawing sheet comprising electro-optic material movable through the aperture between closed and open positions, and a writing device for writing on the sheet as it moved between its closed and open positions. A second apparatus comprises a display member having a viewing surface, support means for supporting this display member above a floor, an electro-optic medium disposed on the display member, and a movable writing head for writing on the electro-optic medium. Another display comprises an optic medium with two display states visible through a viewing surface. A touch screen is disposed on the opposed side of the optic medium from the viewing surface, and the optic medium is deformable such that pressure applied to the viewing surface will be transmitted to the touch screen.Type: ApplicationFiled: April 26, 2010Publication date: August 12, 2010Applicant: E Ink CorporationInventors: Allan Scott Baucom, Ara N. Knaian, Heather A. Linden, Timothy J. O'Malley, Russell J. Wilcox
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Patent number: 7771809Abstract: This invention relates to a honeycomb comprising cells having edges forming a face of the honeycomb, the face defined by a plurality of points and having an area of curvature wherein at least two of the points are located in different tangential planes, the walls of the cells comprising 5 to 50 parts by weight thermoplastic material having a melting point of from 120° C. to 350° C., and 50 to 95 parts by weight of a high modulus fiber having a modulus of 600 grams per denier (550 grams per dtex) or greater, based on the total amount of thermoplastic material and high modulus fiber in the walls; wherein less than 25 percent of the honeycomb cells in the area of curvature have a re-entrant angle of greater than 180 degrees. This invention also relates to articles including panels and/or aerodynamic structures comprising the honeycomb.Type: GrantFiled: December 15, 2006Date of Patent: August 10, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Gary Lee Hendren, Mikhail R. Levit, Subhotosh Khan
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Patent number: 7771636Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: GrantFiled: December 19, 2007Date of Patent: August 10, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Patent number: 7771637Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: GrantFiled: December 19, 2007Date of Patent: August 10, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Patent number: 7771638Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: GrantFiled: December 19, 2007Date of Patent: August 10, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark H. Headinger, David W. Luckey, Edgar N. Rudisill
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Patent number: 7771666Abstract: The present invention provides a method and apparatus for the controlled synthesis of nanoparticles using a high temperature process. The reactor chamber includes a high temperature gas heated by means such as a plasma torch, and a reaction chamber. The homogenizer includes a region between the reactant inlets and the plasma (the spacer zone) to ensure that feeds from the reactant inlets are downstream of the recirculation zone induced by the high temperature gas. It also includes a region downstream of the reactant inlets that provides a nearly I dimensional (varying only in the axial direction) flow and concentration profile in the reaction zone to produce nanoparticles with narrow size distribution.Type: GrantFiled: December 16, 2003Date of Patent: August 10, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Stephan Claude De La Veaux, Lu Zhang
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Patent number: 7771815Abstract: A molding glass lens and a mold thereof are disclosed. The molding glass lens consists of an upper optical surface, a lower optical surface, two outers surrounding the optical surfaces and at least three grooves arranged in the form of a circle disposed on the lower outer and/or the upper outer. The disposition of the grooves has no affecting in original size of the outers as well as assembling with other mechanical parts in les group. The mold of the lens includes an upper molding unit and a lower molding unit. Cavity of each molding unit is composed of a central part for forming an optical surface of the lens and an outer circular part for forming outer of the lens. At least three protrudent parts with the same height are disposed in the form of a circle on the outer circular of the lower molding unit and/or the upper molding unit. Thus the air in the mold cavity is easy to exhaust through the gap formed by protrudent parts and glass preform.Type: GrantFiled: August 28, 2007Date of Patent: August 10, 2010Assignee: E-Pin Optical Industry Co., LtdInventors: San-Woei Shyu, Chia-Wei Wang, Jau-Jan Deng, Wen-Huang Liu, Chien-Min Wu
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Patent number: 7772444Abstract: Methods to produce resveratrol and/or resveratrol glucoside in a recombinant oleaginous microorganism are provided. Expression of a resveratrol synthase gene in combination with genes involved in the phenylpropanoid pathway enabled recombinant microbial production of resveratrol in significant amounts.Type: GrantFiled: May 17, 2006Date of Patent: August 10, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Lixuan Lisa Huang, Zhixiong Xue, Quinn Qun Zhu
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Patent number: 7771919Abstract: Provided are liquid compositions suitable for use as immersion liquids in immersion lithography, and immersion lithography processes and apparatus using the compositions.Type: GrantFiled: June 8, 2007Date of Patent: August 10, 2010Assignee: E. I. du Pont de Nemours and CompanyInventor: Alex Sergey Ionkin
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Publication number: 20100196253Abstract: This disclosure relates to an improved process for preparing titanium tetrachloride comprising reacting ores comprising metal oxides with chlorine and a carbon compound at a temperature of about 900° C. to about 1300° C. to form the corresponding chlorides and off gas comprising carbon monoxide, wherein the metal in the metal oxide is selected from the group consisting of silicon, zircon and mixtures thereof, and wherein the carbon compound is selected from the group consisting of coke, charcoal, silicon carbide and mixtures thereof; and reacting titanium dioxide with a stream comprising off gases formed in the previous step to form titanium tetrachloride and carbon dioxide.Type: ApplicationFiled: August 1, 2008Publication date: August 5, 2010Applicant: E. I. Du Pont De Nemours and CompanyInventors: Timothy J. Becnel, Yung-Hsing Samson Hsu, Joseph J. Zaher, Charles David Musick
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Publication number: 20100195320Abstract: A foldable, rechargeable light emitting diode (LED) pocket light is disclosed. The light includes a first compartment, a second compartment and a hinge element. The first compartment has a housing, a plurality of LED lights, a rotatable hinge, and a hook for hanging the light. The second compartment includes a housing, a member for receiving the rotatable hinge and a power source. The light also includes an activating member and circuitry for activating the LED lights.Type: ApplicationFiled: March 31, 2010Publication date: August 5, 2010Applicant: E-Z Red CompanyInventor: Mark Tucker
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Publication number: 20100198317Abstract: The invention provides a cochlea stimulator for implantation comprising optical fibres of which are coupled to an irradiation source that is controlled by a modulator to generate irradiation specific for a pre-determined range of sound-frequencies. The cochlea stimulator effects a frequency-specific activation of the organ of Corti needed for speech perception especially in noisy environment and more complex sounds. For imparting excitation signals which are generated by modulated pulsed laser irradiation conducted within an optical fibre in order to elicit nervous signals in residual functional organ of Corti sections, the auditory prosthesis preferably contains optical fibres which are dimensioned to terminate in end sections within the cochlea at different sites or sections of the organ of Corti. e.g. having different lengths for locating their end sections at different internal parts of the cochlea.Type: ApplicationFiled: January 30, 2009Publication date: August 5, 2010Applicants: MEDIZINISCHE HOCHSCHULE HANNOVER, LASER ZENTRUM HANNOVER E. V.Inventors: Thomas Lenarz, Holger Lubatschowski, Guenter Reuter, Gentiana I. Wenzel, Hubert H. Lim, Wolfgang Ertmer
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Publication number: 20100197995Abstract: The invention relates to a hearing aid device for humans with impaired hearing, who have an at least partially functional cochlea and a functional nervous signalling pathway from the cochlea via the auditory nerve to the brain. The hearing aid device contains a receiver, a transducer of the sound or other acoustic signals into electrical current serving as a signal representing a sound, a pulsed irradiation source connected to the transducer for receiving the electrical current and for generating modulated pulsed irradiation in dependence from the electrical current, and preferably one or more optical fibres optically coupled to the exit of the pulsed irradiation source, wherein the optical path for conduction of irradiation within the device ends directly opposite a functional element of the natural vibration transduction pathway, e.g.Type: ApplicationFiled: January 30, 2009Publication date: August 5, 2010Applicants: Medizinische Hochschule Hannover, Laser Zentrum Hannover e. V.Inventors: Gentiana I. Wenzel, Hubert H. Lim, Thomas Lenarz, Holger Lubatschowski
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Patent number: D621224Type: GrantFiled: December 16, 2009Date of Patent: August 10, 2010Assignee: Cha Cha Th é Culture International Company LimitedInventor: Tsai-Hsieh Wang Chen