Patents by Inventor Mark Andrew Harmer
Mark Andrew Harmer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9790342Abstract: Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin and a monomer, wherein the monomer comprises furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.Type: GrantFiled: May 25, 2012Date of Patent: October 17, 2017Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Mark Andrew Harmer, Vivek Kapur, Sharlene Renee Williams
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Patent number: 9701803Abstract: Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin, a first monomer, and a second monomer, wherein the first monomer comprises formaldehyde, paraformaldehyde, furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), or mixtures thereof, and the second monomer comprises furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%.Type: GrantFiled: May 25, 2012Date of Patent: July 11, 2017Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Michael W Cobb, Vincent Galante, Mark Andrew Harmer, Vivek Kapur, Sharlene Renee Williams
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Publication number: 20160083547Abstract: Disclosed are foam compositions and processes to form mixed tannin-phenolic foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a mixed-resin derived from a phenol, a tannin, and a first monomer, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.Type: ApplicationFiled: December 3, 2015Publication date: March 24, 2016Inventors: MICHAEL W. COBB, MARK ANDREW HARMER, VIVEK KAPUR, ANN Y. LIAUW, SHARLENE RENEE WILLIAMS
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Patent number: 9260579Abstract: Disclosed are foam compositions and processes to form mixed tannin-phenolic foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a mixed-resin derived from a phenol, a tannin, and a first monomer, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.Type: GrantFiled: May 25, 2012Date of Patent: February 16, 2016Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Michael W Cobb, Mark Andrew Harmer, Vivek Kapur, Ann Y Liauw, Sharlene Renee Williams
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Publication number: 20140184371Abstract: A nonwoven web of poly(phenylene-1,3,4-oxadiazole) and polymetaphenylene isopthalamide. was found to have greater retention of tensile strength than kraft paper after immersion in oil at high temperature, making it useful as an insulation material for transformers.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Mark Andrew Harmer, Sharlene Renee Williams, Michael W. Cobb
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Publication number: 20140186576Abstract: A nonwoven web of unmodified or cyanoethylated nanocellulose was found to have greater strength than kraft paper after immersion in oil at high temperature, making it useful as an insulation material for transformers. A mixture of nanocellulose and polymetaphenylene isophthalamide has further improved properties for use as an insulating material.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: MARK ANDREW HARMER, Ann Y. Liauw, Byoung Sam Kang, Mark A. Scialdone
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Patent number: 8735603Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.Type: GrantFiled: December 4, 2009Date of Patent: May 27, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Aaron Minter
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Patent number: 8721770Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker; and to methods of carbon dioxide removal in which they may be used.Type: GrantFiled: December 4, 2009Date of Patent: May 13, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter, Mark Brandon Shiflett
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Publication number: 20140093720Abstract: Disclosed are foam compositions and processes to form mixed tannin-phenolic foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a mixed-resin derived from a phenol, a tannin, and a first monomer, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.Type: ApplicationFiled: May 25, 2012Publication date: April 3, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Michael W. Cobb, Mark Andrew Harmer, Vivek Kapur, Ann Y. Liauw, Sharlene Renee Williams
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Publication number: 20140093719Abstract: Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin and a monomer, wherein the monomer comprises furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.Type: ApplicationFiled: May 25, 2012Publication date: April 3, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Mark Andrew Harmer, Vivek Kapur, Sharlene Renee Williams
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Publication number: 20140079941Abstract: Disclosed are foam compositions and processes to form closed-cell phenolic foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a phenol-formaldehyde resole derived from a phenol and formaldehyde, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising 1,1,1,4,4,4-hexafluoro-2-butene.Type: ApplicationFiled: May 25, 2012Publication date: March 20, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Michael W. Cobb, Mark Andrew Harmer, Vivek Kapur, Ann Y. Liauw, Sharlene Renee Williams
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Publication number: 20130337249Abstract: Insulating materials are provided, the insulating materials comprising a nonwoven web comprising a plurality of continuous spunbonded polyester bicomponent fibers. Each of the plurality of bicomponent fibers comprises a) from about 20% by weight to about 80% by weight of poly(ethylene terephthalate) in a core, and b) from about 80% by weight to about 20% by weight of poly(trimethylene terephathalate) in a sheath surrounding the core, wherein the amounts in percent by weight are based on the total weight of each of the plurality of bicomponent fibers. Also provided are electrical apparatuses comprising the insulating materials and a dielectric fluid, as well as a dielectric material comprising the nonwoven web impregnated with at least 10 weight percent of a dielectric fluid.Type: ApplicationFiled: August 24, 2012Publication date: December 19, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Gyorgyi Fenyvesi, Mark Andrew Harmer, Byoung Sam Kang, Lakshmi Krishnamurthy, Serge Rebouillat, Peter A. Brown, Weiming Qiu
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Patent number: 8350056Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.Type: GrantFiled: June 2, 2010Date of Patent: January 8, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
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Patent number: 8308886Abstract: The invention discloses processes for thermal transfer patterning of a nanoparticle layer and a corresponding proximate portion of a carrier layer, and optionally additional transfer layers, together onto a thermal imaging receiver. The invention is useful for dry fabrication of electronic devices. Additional embodiments of the invention include multilayer thermal imaging donors comprising in layered sequence: a base film, a carrier layer and a nanoparticle layer. The carrier layer can be a dielectric or conducting layer. When the carrier layer is a dielectric layer, the base film includes a light attenuating agent in the form of a dye or pigment.Type: GrantFiled: July 17, 2006Date of Patent: November 13, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Gerald Donald Andrews, Marc B Goldfinger, Mark Andrew Harmer, Gary Delmar Jaycox, Lynda Kaye Johnson, Irina Malajovich, William J Marshall, Elizabeth Forrester McCord, Charles Nehemiah McEwen, Jeffrey Scott Meth, Richard Kevin Bailey, Geoffrey Nunes, Rinaldo Soria Schiffino, Paul J Shannon, Kenneth George Sharp, Karyn B Visscher, Graciela Beatriz Blanchet, John W Catron, Jr., Reid John Chesterfield, Thomas C Felder, Feng Gao, Howard David Glicksman
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Patent number: 8304535Abstract: Sugar solutions are obtained from polysaccharide enriched biomass by contacting biomass with water and at least one nucleophilic base to produce a polysaccharide enriched biomass comprising a solid fraction and a liquid fraction. The solid fraction is separated from the lignin-containing liquid fraction and contacted with an acid solution, the acid solution comprising about 70 weight percent to about 100 weight percent sulfuric acid or an acid mixture comprising phosphoric acid and sulfuric acid, at a temperature and for a reaction time sufficient to produce a decrystallized biomass mixture. Water is added and the diluted biomass mixture is then hydrolyzed to produce a saccharification product comprising sugars.Type: GrantFiled: November 19, 2009Date of Patent: November 6, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Subramaniam Sabesan
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Patent number: 8283492Abstract: A process for manufacture of hydrofluoroalkanesulfonic acid with at least one hydrogen bonded to the carbon atom adjacent to the carbon atom bonded to the sulfonic acid group comprising: contacting a fluoroolefin with sulfite in an aqueous solution adjusted to about pH 4 to pH 12; removing water from the solution to form a solid; directly treating the solid with oleum; and distilling the hydrofluoroalkanesulfonic acid therefrom. Also a process for manufacture of potassium hydrofluoroalkanesulfonate in high purity is described.Type: GrantFiled: January 20, 2011Date of Patent: October 9, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Christopher P. Junk, Zoe Schnepp
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Publication number: 20120130088Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.Type: ApplicationFiled: December 4, 2009Publication date: May 24, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Aaron Minter
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Patent number: 8148491Abstract: This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof by a polycondensation reaction using at least one acid catalyst, wherein the temperature of the reaction is controlled such that the average temperature during the first half of the reaction is higher than the average temperature during the second half of the reaction.Type: GrantFiled: October 31, 2008Date of Patent: April 3, 2012Assignee: E I du Pont de Nemours and CompanyInventors: David C. Confer, Mark Andrew Harmer, Christian Hoffmann, Scott Christopher Jackson, Sigridur Soley Kristjansdottir, Rupert Spence
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Patent number: 8143371Abstract: This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof having a number-average molecular weight of at least about 250 g/mole by a polycondensation reaction using at least one acid catalyst.Type: GrantFiled: October 31, 2008Date of Patent: March 27, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Christian Hoffmann, Scott Christopher Jackson, Edward R. Murphy, Rupert Spence
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Patent number: 8138354Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker, which compounds may be represented by the structure of the following Formula I: wherein: (a) Z is —(CH2)n—, wherein n is an integer from 2 to 12; (b) R2. R3 and R4 are each independently H or a C1 to C6 straight-chain or branched alkyl group; and (c) A? is levulinate, [CF3—O—CFHCF2SO3]?, [CF3CF2OCFHCF2SO3]?, or [CF3CF2CF2OCFHCF2SO3]?.Type: GrantFiled: December 4, 2008Date of Patent: March 20, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter