Abstract: A heat-resistant separator contains a porous film, a polymeric fibrous layer adhesively bonded to the surface of the porous film, and an adhesive binder layer located between the porous film and the fibrous layer and covering at least a portion of the surface of the porous film. The fibrous layer contains fibers manufactured of a polyimide wherein the fibers of a form of polyimide comprise fibers with a majority of fibers having diameters in the range of 1-3000 nm. In one of the embodiment the binder layer contains sodium carboxymethylcellulose, and the amount of adhesive present between the porous film and the fibrous web in the final product is within the range of 0.30 grams per square meter of covered surface of porous film to 0.90 grams per square meter of covered surface of porous film.
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:
March 23, 2018
Date of Patent:
April 16, 2019
Assignee:
E I DU PONT DE NEMOURS AND COMPANY
Inventors:
Jayme L. Paullin, Mark S. Payne, T. Joseph Dennes, Yefim Brun, Rakesh Nambiar, Thomas H Scholz
Abstract: Halogen-free flame retardant compositions comprise thermoplastic elastomers that exhibit flame retardance and and are non-dripping according to flammability rating UL 94 V. The flame retardant compositions comprise a) one or more thermoplastic elastomers, and b) a flame retardant mixture comprising: b1) at least one flame retardant comprising a phosphinate or a disphosphinate or a polymer of a polymers phosphinate or a disphosphinate, b2) a phosphonate oligomer, polymer or copolymer, or a phosphorous-containing amino composition; and b3) a cyclodextrin.
Abstract: An article of thermal protective clothing suitable for use in arc protection comprising a woven fabric comprising yarns comprising modacrylic fiber and aramid fiber, wherein 25 to 100 parts of the aramid fiber contain 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and 0 to 75 parts of the aramid fiber are free of discrete carbon particles; the fabric having an ATPV of 10 cal/cm2 or greater at a basis weight of 6 ounces per square yard (203 grams per square meter) or less, and a total content of 0.1 to 3 weight percent discrete carbon particles.
Abstract: An intimate blend of staple fibers, and a yarn, fabric, and article of clothing providing surprising arc performance; the intimate blend comprises 15 to 70 weight percent modacrylic fiber, 5 to 27 weight percent para-aramid fiber; and 3 to 80 weight percent meta-aramid fiber, wherein 25 to 100 parts of the meta-aramid fiber contains 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and 0 to 75 parts of the meta-aramid fiber free of discrete carbon particles, the intimate blend having a total content of 0.1 to 3 weight percent discrete carbon particles.
Abstract: Methods and compositions useful for avoiding plant meiosis and clonal reproduction through seed are provided herein. The present disclosure provides polynucleotides and related polypeptides of Spo11, Rec8, OSD1-1A, and OSD1-3A and methods and compositions for suppressing their expression level or activity.
Type:
Application
Filed:
March 17, 2017
Publication date:
April 4, 2019
Applicants:
PIONEER HI-BRED INTERNATIONAL, INC., E.I. DU PONT DE NEMOURS AND COMPANY
Inventors:
MARC C ALBERTSEN, TIM WAYNE FOX, MARISSA SIMON, MARK E WILLIAMS
Abstract: A voltage detecting glove comprises a glove liner and an outer glove shell. A conductive antenna is disposed inside the outer glove shell but separated from the glove liner by a buffer. The antenna is connected to electronic circuitry configured to sense a voltage indicative of the proximity of the antenna to an AC electric field resulting from energized AC source, and to activate an alarm if the strength of the field exceeds a preselected threshold limit.
Type:
Grant
Filed:
September 29, 2017
Date of Patent:
April 2, 2019
Assignee:
E I DU PONT DE NEMOURS AND COMPANY
Inventors:
Wei Wu, Gregory Scott Blackman, Jeffrey Scott Meth, Kimberly K. Hockman
Abstract: An unconsolidated impact and penetration resistant laminate comprises a plurality of cross-plied sheets, each cross-plied sheet further comprising (i) first and second layers of fibrous or non-fibrous ultra-high molecular weight polyethylene and (ii) first and second layers of thermoplastic adhesive, each adhesive layer having a basis weight of no greater than 5 gsm, wherein (a) the layers of polyethylene and thermoplastic adhesive alternate within the sheet, (b) at least 50 percent of the polyethylene layers are arranged such that the orientation of the first polyethylene layer is offset with respect to the orientation of the second polyethylene layer, and (c) the plurality of cross-plied sheets form a stack that, when subjected to compaction at a pressure of 255 bar and a temperature of 132 degrees C., will not suffer a pressure loss greater than 8 bar within the first two minutes as measured by Test Method B.
Type:
Grant
Filed:
April 20, 2016
Date of Patent:
April 2, 2019
Assignee:
E I DU PONT DE NEMOURS AND COMPANY
Inventors:
James Neal Singletary, Leopoldo Alejandro Carbajal, William George Kampert, Timothy A Libert, Bryan Benedict Sauer, Kenneth C Harding
Abstract: The invention relates to a method for preparing a relief printing plate from a printing plate precursor wherein at least an end of the precursor is attached to a leader forming a composite printing form precursor that securely mounts the precursor in a treatment processor. The present method advantageously allows for all or substantially all of the area of the precursor to be utilized for forming the relief surface suitable for printing.
Type:
Grant
Filed:
March 2, 2017
Date of Patent:
March 26, 2019
Assignee:
E I DU PONT DE NEMOURS AND COMPANY
Inventors:
Carl Bernard Arnold, Edmund Francis Schieffer, Jr., Theodore William Frentzel, Jr., James Kenton Odle
Abstract: The present invention concerns methods for removing sulfur from yarn comprising the steps of: a) contacting never-dried polymeric yarn with an aqueous base, the polymer comprising imidazole groups and said polymer comprising sulfur atoms characterized as being in the form of sulfate anions; b) contacting the yarn with an aqueous acid comprising a halide; and c) rinsing the yarn.
Type:
Grant
Filed:
January 11, 2012
Date of Patent:
March 26, 2019
Assignee:
E I DU PONT DE NEMOURS AND COMPANY
Inventors:
Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton, David J. Rodini, Andrew J. Sitter
Abstract: The present invention is directed toward an apparatus comprising a high speed rotating disk or bowl for nanofiber spinning from the rotational sheared thin film fibrillation at the enclosed serrations with the optimized stretching zone to produce the defects-free nanofibrous web and nanofibrous membrane comprising a nanofiber network with a number average nanofiber diameter less than 500 nm that yield the crystallinity higher than the polymer resin used in making the web.
Type:
Grant
Filed:
October 22, 2014
Date of Patent:
March 19, 2019
Assignee:
E I DU PONT DE NEMOURS AND COMPANY
Inventors:
Tao Huang, Thomas Patrick Daly, Zachary R Dilworth
Abstract: Compositions and methods for controlling pests are provided. The methods involve transforming organisms with a nucleic acid sequence encoding an insecticidal protein. In particular, the nucleic acid sequences are useful for preparing plants and microorganisms that possess insecticidal activity. Thus, transformed bacteria, plants, plant cells, plant tissues and seeds are provided. Compositions are insecticidal nucleic acids and proteins of bacterial species. The sequences find use in the construction of expression vectors for subsequent transformation into organisms of interest including plants, as probes for the isolation of other homologous (or partially homologous) genes. The pesticidal proteins find use in controlling, inhibiting growth or killing Lepidopteran, Coleopteran, Dipteran, fungal, Hemipteran and nematode pest populations and for producing compositions with insecticidal activity.
Type:
Grant
Filed:
February 6, 2015
Date of Patent:
March 12, 2019
Assignees:
PIONEER HI-BRED INTERNATIONAL, INC., E I DU PONT DE NEMOURS AND COMPANY
Inventors:
Jennifer Barry, Ryan Michael Gerber, Lu Liu, Amy Lum, Eric Schepers, Nasser Yalpani, Genhai Zhu
Abstract: A process for mechanical destructuring of cellulosic biomass was developed that makes use of a short application of high compression, impact, and shearing forces. The biomass may be destructured using a specific energy input that is less than 40% of the total combustible energy of the biomass. The destructured biomass, with or without saccharification and/or in-feed glycosyl hydrolase enzymes, may be used in feed applications.
Type:
Grant
Filed:
November 18, 2014
Date of Patent:
March 12, 2019
Assignee:
E I DU PONT DE NEMOURS AND COMPANY
Inventors:
Wathudura Indika Namal De Silva, Paul Joseph Fagan, F Glenn Gallagher, Zheng-Zheng Huang, Guangliang Gary Liu, Aaron Perelman, Luis Fernando Romero Millan, Anton Shpilsky, Daniel A Slanac, Maria Walsh
Abstract: The disclosure provides DNA compositions that relate to transgenic insect resistant maize plants. Also provided are assays for detecting the presence of the maize DP-033121-3 event based on the DNA sequence of the recombinant construct inserted into the maize genome and the DNA sequences flanking the insertion site. Kits and conditions useful in conducting the assays are provided.
Type:
Application
Filed:
September 12, 2018
Publication date:
March 7, 2019
Applicants:
E. I. DU PONT DE NEMOURS AND COMPANY, PIONEER HI-BRED INTERNATIONAL, INC.
Inventors:
MARY BEATTY, KENT BRINK, VIRGINIA CRANE, SCOTT DIEHN, ALBERT L. LU, GREGORY J. YOUNG
Abstract: Methods and compositions are provided which employ a silencing element that, when ingested by a pest, such as a Pentatomidae plant pest, decrease the expression of a target sequence in the pest. The present invention provides various target polynucleotides set forth in any one of SEQ ID NOS: 6-12, 18-40 or active variants and fragments thereof, wherein a decrease in expression of one or more the sequences in the target pest controls the pest (i.e., has insecticidal activity). Plants, plant part, bacteria and other host cells comprising the silencing elements or an active variant or fragment thereof of the invention are also provided.
Type:
Application
Filed:
November 16, 2018
Publication date:
March 7, 2019
Applicant:
E. I. DU PONT DE NEMOURS AND COMPANY
Inventors:
Brian McGonigle, James Kevin Presnail, Navdeep Mutti
Abstract: A solid surface comprises (i) a crosslinked acrylic or unsaturated polyester resin present in an amount no greater than 51 or 52 volume fraction percent, and (ii) no greater than 48 or 49 volume fraction percent of inorganic filler particles that are modified with discrete functional particles that are bound, or adhered to the filler particles, the filler particles being distributed evenly throughout the solid surface wherein (a) 95-99 volume fraction percent of the filler particles has a major dimension in the range of from 0.5 to no greater than 10 microns, (b) the D50 of the filler particles is from 0.5-2.5 microns, (c) the D90 of the filler particles is equal to or less than 10 microns and (d) the filler particles are modified with discrete functional particles that are bound, or adhered to the filler particles.
Type:
Grant
Filed:
July 17, 2017
Date of Patent:
March 5, 2019
Assignee:
E I DU PONT DE NEMOURS AND COMPANY
Inventors:
Gregory Scott Blackman, Hee Hyun Lee, Keith William Pollak, Michael T Pottiger, Timothy Scott Wyant
Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with an organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
Type:
Grant
Filed:
August 17, 2017
Date of Patent:
March 5, 2019
Assignee:
E I DU PONT DE NEMOURS AND COMPANY
Inventors:
Kevin D Nagy, Perry G Caimi, T Joseph Dennes, Susan Marie Hennessey, Ayrookaran J. Poulose, Jayme L Paullin
Abstract: Compositions and methods for controlling pests are provided. The methods involve transforming organisms with a nucleic acid sequence encoding an insecticidal protein. In particular, the nucleic acid sequences are useful for preparing plants and microorganisms that possess insecticidal activity. Thus, transformed bacteria, plants, plant cells, plant tissues and seeds are provided. Compositions are insecticidal nucleic acids and proteins of bacterial species. The sequences find use in the construction of expression vectors for subsequent transformation into organisms of interest including plants, as probes for the isolation of other homologous (or partially homologous) genes. The pesticidal proteins find use in controlling, inhibiting growth or killing Lepidopteran, Coleopteran, Dipteran, fungal, Hemipteran and nematode pest populations and for producing compositions with insecticidal activity.
Type:
Application
Filed:
October 1, 2018
Publication date:
February 28, 2019
Applicants:
PIONEER HI-BRED INTERNATIONAL, INC., E. I. DU PONT DE NEMOURS AND COMPANY
Inventors:
JENNIFER BARRY, RYAN MICHAEL GERBER, LU LIU, AMY LUM, ERIC SCHEPERS, NASSER YALPANI, GENHAI ZHU
Abstract: The disclosure relates to Bt toxin resistance management. One embodiment relates to the isolation and characterization of polynucleotides and polypeptides corresponding to novel Bt toxin receptors. The polynucleotides and polypeptides are useful in identifying or designing novel Bt toxin receptor ligands including novel insecticidal toxins.
Type:
Application
Filed:
November 7, 2018
Publication date:
February 28, 2019
Applicants:
PIONEER HI-BRED INTERNATIONAL, INC., E. I. DU PONT DE NEMOURS AND COMPANY
Inventors:
JAMES E BECKER, CATHERINE J. CLARK, JOHN P. MATHIS, MARK EDWARD NELSON
Abstract: A composition is disclosed that comprises at least one protein component of an RNA-guided endonuclease (RGEN) and at least one cell-penetrating peptide (CPP), wherein the RGEN protein component and CPP are covalently or non-covalently linked to each other in an RGEN protein-CPP complex. The RGEN protein-CPP complex can traverse (i) a cell membrane, or (ii) a cell wall and cell membrane, of a cell. The RGEN protein component of an RGEN protein-CPP complex in certain embodiments can be associated with a suitable RNA component to provide an RGEN capable of specific DNA targeting. Further disclosed are compositions comprising at least one protein component of a guide polynucleotide/Cas endonuclease complex and at least one CPP, as well as methods of delivering RGEN proteins into microbial cells, as well as methods of targeting DNA with RGENs.
Type:
Grant
Filed:
November 3, 2015
Date of Patent:
February 19, 2019
Assignee:
E.I. DU PONT DE NEMOURS AND COMPANY
Inventors:
Ryan L. Frisch, Xiaochun Fan, Seung-Pyo Hong, Ethel Noland Jackson