Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in the ratio of peracetic acid formation to peracetic acid hydrolysis specific activities (PAAF/PAAH ratio). The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
Type:
Grant
Filed:
December 7, 2009
Date of Patent:
April 26, 2011
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Robert DiCosimo, John Edward Gavagan, Mark S. Payne
Abstract: The present invention provides a process for making a filled fluoropolymer bearing comprising providing an aqueous fluoropolymer dispersion comprising fluoropolymer particles and anionic polyelectrolyte dispersing agent in an amount sufficient for stabilization. The dispersion contains less than about 300 ppm fluorosurfactant based on the weight of the dispersion. The dispersion is coagulated to make a mush and a bearing filler is added to the dispersion prior to or after making the mush. The mush containing bearing filler is applied onto a bearing substrate to produce a coated substrate which is sintered and formed into a bearing.
Type:
Grant
Filed:
June 2, 2010
Date of Patent:
April 26, 2011
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Robert John Cavanaugh, Clay Woodward Jones
Abstract: Provided is a method for the use of a bradykinin B1 receptor antagonist of formula I: X-CO-Aaa0-Aaa1-Aaa2-Aaa3-Gly-?(Me)Phe-Ser-D-?Nal-Aaa8-OH (I) or a pharmaceutically acceptable salt or hydrate thereof wherein: X is CnH2n+1 or CiH2i—C6H5, where n is an integer from 1 to 3, and i is an integer from 0 to 3; Aaa0 is Lys, Orn or Cit; Aaa1 is Arg or Cit, and preferably Arg; Aaa2 is Oic, Hyp or Pro, and preferably Oic; Aaa3 is Pro or Oic, and preferably Pro; and Aaa8 is Ile, Leu or Nle, and preferably Ile, for the treatment of metastases, cancers and/or chemotherapy-induced neuropathies, comprising the administration of the compound to a patient in need of such treatment. Also provided are compositions containing such antagonists and their thereof.
Type:
Grant
Filed:
June 12, 2006
Date of Patent:
April 26, 2011
Assignee:
Societe de Commercialisation des Produits de la Recherche Applique Socpra Sciences Sante et Humaines S.E.C.
Inventors:
François Nantel, Roger Chammas, Pierre Sirois, Bruno Joseph Battistini
Abstract: Engineered strains of the oleaginous yeast Yarrowia lipolytica capable of producing greater than 25% eicosapentaenoic acid (EPA, an ?-3 polyunsaturated fatty acid) in the total oil fraction are described. These strains comprise various chimeric genes expressing heterologous desaturases, elongases and acyltransferases and optionally comprise various native desaturase and acyltransferase knockouts to enable synthesis and high accumulation of EPA. Production host cells are claimed, as are methods for producing EPA within said host cells.
Type:
Grant
Filed:
November 2, 2005
Date of Patent:
April 26, 2011
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Howard Glenn Damude, Peter John Gillies, Daniel Joseph Macool, Stephen K. Picataggio, Dana M. Walters Pollak, James John Ragghianti, Zhixiong Xue, Narendra S. Yadav, Hongxiang Zhang, Quinn Qun Zhu
Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.
Type:
Grant
Filed:
April 18, 2008
Date of Patent:
April 26, 2011
Assignee:
E.I. du Pont de Nemours and Company
Inventors:
Michael Allen Bryner, Jack Eugene Armantrout, Benjamin Scott Johnson
Abstract: Methods for increasing lipolysis in a cell are described herein. Such methods comprise the application of an electrical current to a cell. In an embodiment, the application of the electrical current does not substantially alter the viability of such cell and/or preserves the viability of such cell. In an embodiment, such cell is an adipocyte. Corresponding uses and packages are also described.
Type:
Grant
Filed:
June 7, 2006
Date of Patent:
April 26, 2011
Assignee:
Transfert Plus, S.E.C.
Inventors:
Jean P. Boucher, Roland Savard, Michel Portmann, Zied Haj Hamida
Abstract: The present invention relates to a heat, flame, and electric arc resistant fabric (1) for use as single or outer layer of protective garments. The fabric (1) of the invention comprises at least two separate single plies which are assembled together at predefined positions so as to build pockets (4). The fabric (1) of the invention is made of materials independently chosen from the group consisting of aramid fibers and filaments, polybenzimidazol fibers and filaments, polyamidimid fibers and filaments, poly(paraphephenylene benzobisaxazole) fibers and filaments, phenol-formaldehyde fibers and filaments, melamine fibers and filaments, natural fibers and filaments, synthetic fibers and filaments, artificial fibers and filaments, glass fibers and filaments, carbon fibers and filaments, metal fibers and filaments, and composites thereof.
Abstract: The invention relates to silane of formula (Ia), wherein the radicals and indices have the following meaning: R is an alkylene, arylene or alkylenearylene group that can be interrupted by one or more oxygen or sulfur atoms or carboxyl or amino groups or can carry said atoms/groups on their ends opposite the silicon atom; R1 is a Z?-substituted alkylene, arylene or alkylenearylene group, which can be interrupted by one or more oxygen or sulfur atoms or carboxyl or amino groups or can carry said atoms/groups on one of their ends; R? is an alkyl, alkenyl, aryl, alkylaryl or arylalkyl group; B and B? can be identical or different, both radicals can have the meaning of a straight-chained or branched organic group with at least one C?C double bond and at least 2 carbon atoms; B? can mean instead thereof but also —R2aSi(OR3)4-a or —R2aR?bSi(OR3)4-a-b, wherein R2 is an alkylene group and R? has the meaning defined above; X represents a group that can enter into a hydrolytic while forming Si—O—Si bridges; Z? means —NH
Type:
Grant
Filed:
October 25, 2004
Date of Patent:
April 26, 2011
Assignee:
Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
Abstract: The present invention is directed to pigment compositions with the formula BiwMnxCoyCuzO40, wherein w is between 7 and 9, x is between 3 and 13, y is between 2 and 13, z is between 0.5 and 7 and the sum of w, x, y and z is 26. The invention also is directed to thick film black pigment compositions, conductive single layer thick film compositions, black electrodes made from such black conductive compositions and methods of forming such electrodes, and to the uses of such compositions, electrodes, and methods in flat panel display applications, including alternating-current plasma display panel devices (AC PDP).
Type:
Grant
Filed:
May 20, 2010
Date of Patent:
April 26, 2011
Assignee:
E.I. du Pont de Nemours and Company
Inventors:
Jerome David Smith, Pedro A. Jimenez, Tony Jackson, Veda L. Evans
Abstract: The invention relates to micromechanical elements deflectable in an oscillating manner and to a method for the operation of such elements. In this respect, it is the object of the invention to be able to operate the micromechanical elements in a stable and simple manner on the oscillating deflection while taking account of the respective mechanical resonant frequency. A least one spring element is present on elements in accordance with the invention with which it is held. It is deflected between two reversal points using an electrical AC voltage. The one or more spring element(s) has/have non-linear spring characteristics so that a changed mechanical resonant frequency results in dependence on the respective deflection.
Type:
Grant
Filed:
April 24, 2006
Date of Patent:
April 26, 2011
Assignee:
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.v.
Inventors:
Harald Schenk, Alexander Wolter, Thilo Sandner, Christian Drabe, Thomas Klose
Abstract: The present invention relates to an arrangement having at least one solar cell, which is formed by a first sequence of differently doped layers (1, 2, 11, 12) on a substrate (6, 16), and at least one bypass diode, which is connected to the solar cell, particularly in a monolithic, series-connected solar module. The arrangement is characterized in that the bypass diode is formed by a second sequence of layers (4, 5, 13, 14), which is arranged between the substrate (6, 16) and the first layer sequence (1, 2, 11, 12). With the proposed arrangement monolithic, series-connected solar modules can be formed at a very low loss of active receiving surface, the solar cells of which are protected by bypass diodes.
Type:
Grant
Filed:
November 3, 2005
Date of Patent:
April 26, 2011
Assignees:
Fraunhofer-Gesellschaft zur Förderung der angewandten e.V., Albert-Ludwigs-Universtät, AZUR SPACE Solar Power GmbH
Inventors:
Sascha Van Riesen, Rüdiger Löckenhoff, Gerhard Strobl, Ron Dietrich, Wolfgang Koestler
Abstract: An operating device and an electrical appliance provided with said operating device is disclosed. The electrical appliance comprises light barriers mounted on a frame that rests on a worktop. The light barriers can detect whether a finger is placed on one or more of the control panels for operation or controlling of said operating device or said electrical appliance. The control panels are arranged along one line in front of the light barriers. The control panels are provided at the top thereof with corresponding identifications, for example in the form of symbols. By moving the control panels away from the actual housing of the electrical appliance it is possible to provide larger heated surfaces for the cooking places.
Abstract: A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising fluoropolyether acid or salt thereof having a number average molecular weight of at least about 800 g/mol; and fluoropolyether acid or salt surfactant.
Type:
Grant
Filed:
November 9, 2007
Date of Patent:
April 26, 2011
Assignee:
E.I. du Pont de Nemours and Company
Inventors:
Paul Douglas Brothers, Subash Vishnu Gangal
Abstract: This invention provides compounds of Formula I, methods for their preparation and use for preparing compounds of Formula II wherein R1, R2, R3, R5, R6, X and n are as defined in the disclosure. This invention also discloses preparation of compounds of Formula III wherein R1, R2, R7, R8, R9 and n are as defined in the disclosure. This invention also pertains to certain compounds of Formula 4 and 6 used to prepare compounds of Formula I. wherein R1, R2, R5, X and n are as defined in the disclosure.
Abstract: The present disclosure provides a black ink-jet ink, having a pH greater than 7, comprising a first aqueous vehicle, a carbon black pigment, and an amphoteric polymeric dispersant, wherein the amphoteric polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment consisting essentially of an amine monomer; and the B block is a segment comprising an acidic monomer and at least one hydrophobic monomer; wherein the dispersant is neutralized, and with the proviso that the acid number is greater that the amine number, and the B block does not contain an amine monomer. The disclosure further pertains to an ink set comprising this black ink and at least a second ink which contains a reactive species with appropriate cationic agent, salt, or pH capable of destabilizing the carbon black dispersion.
Type:
Grant
Filed:
December 4, 2008
Date of Patent:
April 26, 2011
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Robert Paul Held, C. Chad Roberts, Patrick F. McIntyre
Abstract: Biomass is pretreated using a low concentration of aqueous ammonia at high biomass concentration. 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:
Grant
Filed:
April 12, 2006
Date of Patent:
April 26, 2011
Assignees:
E. I. du Pont de Nemours and Company, Alliance For Sustainable Energy LLC
Inventors:
James B. Dunson, Jr., Melvin Tucker, Richard Elander, Susan M. Hennessey
Abstract: Fluoroalkyl phosphates containing a tertiary carbon and a nonfluorinated chain are useful as surfactants and additives. The f can be used to alter a surface property of a medium and to provide resistance to blocking, open time extension, or oil repellency to a substrate.
Abstract: Monolithic films are provided having controlled regional breathability with high MVTR regions and low MVTR regions. The zoned monolithic films are be made by selectively applying coatings to a monolithic film prepared from organic acid-modified ionomer resins.