Abstract: An engineered strain of the oleaginous yeast Yarrowia lipolytica capable of producing greater than 5.6% docosahexaenoic acid acid (DHA, an w-3 polyunsaturated fatty acid) in the total oil fraction is described. This strain comprises various chimeric genes expressing heterologous desaturases, elongases and acyltransferases and optionally comprises various native desaturase and acyltransferase knockouts to enable synthesis and high accumulation of DHA. Production host cells are claimed, as are methods for producing DHA within said host cells.
Type:
Grant
Filed:
November 1, 2005
Date of Patent:
June 23, 2009
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Howard Glenn Damude, Daniel Joseph Macool, Stephen K. Picataggio, James John Ragghianti, John E. Seip, Zhixiong Xue, Narendra S. Yadav, Hongxiang Zhang, Quinn Qun Zhu
Abstract: A composition results from the blending of a maleic anhydride grafted metallocene linear low-density polyethylene (mLLDPE) or a maleic anhydride grafted metallocene very low-density polyethylene (mVLDPE) with an alkene or olefin polymer composition. The resultant maleic anhydride grafted polymeric composition adheres well to metal films such as aluminum film. The composition also has rheology properties making the composition efficient to use in co-extrusion processes. Also provided is a method for preparing maleic anhydride grafted propylene polymer compositions.
Abstract: A pedal device with a shiftable stepping position for a percussion instrument is disclosed. In view of the problems in the prior art that the player feels discomfort when the angle of the footboard is not correct and that the instrument may have a worse pose, the invention provides a back bottom board under the pedal device that can rotate and adjust its side-shifting angles. By shifting the position of the back bottom board, the footboard is moved and fixed at a position preferred by the player. Therefore, the position of the footboard is adjusted according to the stepping position of the player. Therefore, the invention can avoid the player's discomfort and be disposed as desired.
Abstract: Perfluorinated polyimides (and co-polyimide) compositions, particularly films are disclosed, comprising at least 50 mole percent of a polymeric repeat unit derived from contacting 3,3?,4,4?-biphenyltetracarboxylic dianhydride (BDPA) and 2,2?-bis(trifluoromethyl) benzidine (TFMB) monomers. The perfluorinated polyimide (and co-polyimide) films of the invention have an in-plane coefficient of thermal expansion (CTE) between ?5 and +20 ppm/° C. and a average light transmittance percent of from about 65.0 to about 99.0 (on a 75-micron thick film basis). The films of the present invention were converted to a polyimide using a chemical conversion method instead of typically employed thermal conversion step thus yielding these desirable properties. The films of the present invention can be an excellent substrate in an optical display device and can be used to replace rigid glass substrates. Finally, the polyimide films of the invention can also be used to manufacture flexible display devices (e.g.
Type:
Grant
Filed:
August 3, 2005
Date of Patent:
June 23, 2009
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Christopher Dennis Simone, Brian C. Auman, Peter Francis Carcia, Richard A. Wessel
Abstract: The present invention provides LTCC (low temperature co-fired ceramic) tape compositions and demonstrates the use of said LTCC tape(s) in the formation of Light-Emitting Diode (LED) chip carriers and modules for various lighting applications. The present invention also provides for the use of (LTCC) tape and LED modules in the formation of lighting devices including, but not limited to, LED devices, High Brightness (HB) LED backlights, display-related light sources, automotive lighting, decorative lighting, signage and advertisement lighting, and information display lighting.
Type:
Grant
Filed:
August 25, 2006
Date of Patent:
June 23, 2009
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Carl B. Wang, Shih-Ming Kao, Yu-Cheng Lin, Jaw-Shin Cheng
Abstract: A process is provided to produce a concentrated aqueous peracid solution in situ using at least one enzyme having perhydrolase activity in the presence of hydrogen peroxide (at a concentration of at least 500 mM) under neutral to acidic reaction conditions from suitable carboxylic acid esters (including glycerides) and/or amides substrates. The concentrated peracid solution produced is sufficient for use in a variety of disinfection and/or bleaching applications.
Type:
Grant
Filed:
October 27, 2006
Date of Patent:
June 23, 2009
Assignee:
E. I. DuPont De Nemours and Company
Inventors:
Robert DiCosimo, Mark Scott Payne, Eugenia Costa Hann, Vincent Brian Croud, John Edward Gavagan, Lorraine Winona Wagner
Abstract: A flame retardant panel structure comprises at least one external metal layer, one or more tie layers comprising one or more functionalized polymers, and a core layer made of a fabric made of glass fibers. The flame retardant panel structure shows comparable flame retardancy properties while being manufactured at reasonable costs with conventional processes such as for example extrusion or calendering. The flame retardant panel structures can be used in applications where flame retardancy and/or fire protection is needed, such as for example in building and construction applications, automotive or railways applications, medical equipments and luggage.
Type:
Application
Filed:
December 10, 2008
Publication date:
June 18, 2009
Applicant:
E. I. DU PONT NEMOURS AND COMPANY
Inventors:
Loic Pierre Rolland, Sebastien Tindilliere
Abstract: A process for producing a film having incorporated or applied thereon or therein an antimicrobial agent and a liquid additive is provided wherein the film comprises a liquid absorbent layer and an impermeable layer are provided. The films can be used for producing a tubular casing or shrinkbag such as casings for foodstuffs.
Abstract: This invention relates to an isolated nucleic acid fragment encoding a diacylglycerol acyltransferase. The invention also relates to the construction of a chimeric gene encoding all or a portion of the diacylglycerol acyltransferase, in sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the diacylglycerol acyltransferase in a transformed host cell.
Type:
Application
Filed:
December 18, 2008
Publication date:
June 18, 2009
Applicant:
E. I. du Pont de Nemours and Company
Inventors:
Edgar B. Cahoon, Anthony J. Kinney, Rebecca E. Cahoon
Abstract: Disclosed is a process comprising reacting CF3CCl2CF2CF3 (CFC-318ma) with hydrogen in the presence of a dehalogenation catalyst to produce CF3CCl=CFCF3(CFC-1317mx). Also disclosed is a process comprising reacting CF3CCl?CFCF3 (CFC-1317mx) with hydrogen in the presence of a dehalogenation catalyst to produce CF3C?CCF3 (hexafluoro-2-butyne). Hexafluoro-2-butyne can be used to produce CF3CH?CHCF2CF3 (1,1,1,4,4,5,5,5-octafluoro-2-pentene).
Abstract: A process for extruding a partially crystalline melt-fabricable perfluoropolymer. The process comprises blowing film from a perfluoropolymer having polytetrafluoroethylene sub-micrometer particles dispersed therein. The perfluoropolymer composition is a core/shell polymer or a dispersion blend or a melt-mixed polymer.
Type:
Application
Filed:
December 5, 2008
Publication date:
June 18, 2009
Applicant:
E. I. DU PONT DE NEMOURS AND COMPANY
Inventors:
Ralph Munson Aten, Sharon Ann Libert, Heidi Elizabeth Burch
Abstract: The present invention provides a safety laminate or solar cell module comprising an acid terpolymer containing film or sheet, wherein the acid terpolymer comprises copolymerized units derived from an ?-olefin, about 15 to about 30 wt. % of an ?,?-ethylenically unsaturated carboxylic acid having 3 to 8 carbons, and about 0.5 to about 40 wt. % of an ?,?-ethylenically unsaturated carboxylic acid ester having 4 to 12 carbons, based on the total weight of the acid terpolymer.
Abstract: This invention provides a series of low-copy number plasmids comprising restriction endonuclease recognition sites useful for cloning at least three different genes or operons, each flanked by a terminator sequence, the plasmids containing variants of glucose isomerase promoters for varying levels of protein expression. The materials and methods are useful for genetic engineering in microorganisms, especially where multiple genetic insertions are sought.
Type:
Application
Filed:
February 13, 2009
Publication date:
June 18, 2009
Applicant:
E. I. DU PONT DE NEMOURS AND COMPANY
Inventors:
Mark S. Payne, Stephen K. Picataggio, Amy Kuang-Hua Hsu, Ramesh V. Nair, Fernando Valle, Philippe Soucaille, Donald E. Trimbur
Abstract: High compression strength honeycomb is made from polymer paper containing 5 to 35 parts by volume solid material and 65 to 95 parts by volume voids having a normalized peak load at bend equal or greater than 0.
Abstract: The promoter of a soybean lipid transfer protein LTP4 and fragments thereof and their use in promoting the expression of one or more heterologous nucleic acid fragments in plants are described.
Abstract: The present invention provides a powder coating composition comprising A) 30 to 90 wt % of at least one glycidyl-functionalized (meth)acrylic resin, B) 30 to 90 wt % of at least one carboxyl functionalized polyurethane resin, C) 0.01 to 10 wt % of at least one wax, and D) 0.05 to 30 wt % of at least one coating additive, and optionally pigment and/or filler, the wt % based on the total weight of the powder coating composition; the powder coating composition provides coatings with a very low gloss level (highly matt finish) and smoothness, a superior durability against aggressive substances and a very good adhesion on metallic substrates.
Type:
Grant
Filed:
December 19, 2006
Date of Patent:
June 16, 2009
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Peter Frese, Phu Qui Nguyen, Carmen Flosbach, Franziska Isele, Mike Schneider, Karina Fuhrmann
Abstract: Disclosed is a system for managing containers through RF communication and to a container position tracking and real-time management system employing RF, in which safety information and management information of a container are obtained by a sensor and a wireless terminal device attached to a container, the position of the container is tracked until it reaches its destination through a reader through RF communication, environments within the container are monitored in real-time for safe transportation, and security and crime prevention functions are carried out.
Abstract: A tire inflation apparatus for inflating a tire mounted on a rim comprises an inflation head mounted to a moveable inflation shaft of a head position cylinder and an assist cylinder mounted to a frame member, with the frame member and assist cylinder positioned above the inflation location. The assist cylinder includes a moveable assist shaft operatively connected to the inflation shaft by a moveable cross member whereby the head position cylinder and assist cylinder cooperatively operate to selectively position the inflation head. The inflation head is positioned in a retracted position by vertical upward extension of the assist shaft and positioned in a tire engaging position by vertical downward retraction of the assist shaft. A fluid passage in the inflation shaft may deliver pressurized gas into a tire inflation cavity of the inflation head for inflating a tire when the inflation head is sealed against the tire.
Abstract: A surface-treated polyester film having one surface primed with an acrylic based primer and the other surface primed with a poly(alkyl amine) based primer and a glazing laminate comprising the same.