Patents by Inventor Sharlene Renee Williams
Sharlene Renee Williams 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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Publication number: 20180273755Abstract: Disclosed herein are lignin-furfuryl alcohol compositions, lignin-furfuryl alcohol-resole (LFR) compositions comprising lignin-furfuryl alcohol composition and phenolic resoles and LFR foams derived from such LFR compositions. Disclosed herein are LFR foams comprising a polymeric phase defining a plurality of open cells and a plurality of closed cells, and a gas phase comprising one or more blowing agents disposed in at least a portion of the plurality of closed cells, wherein the polymeric phase is derived from LFR compositions.Type: ApplicationFiled: November 10, 2015Publication date: September 27, 2018Inventors: Michael W. Cobb, Hari Babu Sunkara, Sharlene Renee Williams
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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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Patent number: 9150506Abstract: Described are sulfonated aromatic compounds and methods of making said compounds. The compounds are useful as monomers in a variety of polymers such as polyamides and polyesters, and can impart flame resistant properties.Type: GrantFiled: June 12, 2013Date of Patent: October 6, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Justin W. Chan, Michael W Cobb, Sharlene Renee Williams
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Patent number: 9150693Abstract: Described is the preparation of sulfonated polyoxadiazole polymers with a high degree of sulfonation and good flammability properties. The polymers are useful in articles such as fibers.Type: GrantFiled: June 12, 2013Date of Patent: October 6, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Peter A Brown, Justin W. Chan, Michael W Cobb, Sharlene Renee Williams
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Patent number: 9150789Abstract: The invention is directed to sulfonated aromatic polyesters and methods of making said polymers. These polymers are useful as fibers and other articles. The polymer has a property of increased flame retardancy.Type: GrantFiled: June 12, 2013Date of Patent: October 6, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Justin W. Chan, Michael W Cobb, Surbhi Mahajan, Sharlene Renee Williams
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Publication number: 20150044927Abstract: Disclosed herein are compositions and article made therefrom and processes of making them. The composition comprises a polymer, the polymer comprising a repeat unit of formula shown below: wherein the polymer is derived from an aromatic diamine comprising m-phenylene diamine, and an aromatic diacid or a derivative thereof comprising furan dicarboxylic acid or derivative thereof.Type: ApplicationFiled: March 29, 2013Publication date: February 12, 2015Applicant: E I Du Pont DE Nemours and CompanyInventors: Justin W. Chan, Fredrik Nederberg, Bhuma Rajagopalan, Sharlene Renee Williams, Michael W. Cobb
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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: 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: 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: 20140087175Abstract: 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: ApplicationFiled: May 25, 2012Publication date: March 27, 2014Applicant: EI DU PONT DE NEMOURS AND COMPANYInventors: Michael W. Cobb, Vincent Galante, Marj 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: 20130338334Abstract: Described are sulfonated polyoxadiazole polymers with a high degree of sulfonation and having improved properties such as increased flame retardancy and dyeability. The polymers are useful in articles such as films, fibrids, fibers for floc, and fibers for textile uses, and other articles made from engineering plastics.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Inventors: MICHAEL W. COBB, SHARLENE RENEE WILLIAMS
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Publication number: 20130338335Abstract: Described is the preparation of sulfonated polyoxadiazole polymers with a high degree of sulfonation and good flammability properties. The polymers are useful in articles such as fibers.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Inventors: Peter A. Brown, Justin W. Chan, Michael W. Cobb, Sharlene Renee Williams
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Publication number: 20130338332Abstract: The invention is directed to sulfonated aromatic polyesters and methods of making said polymers. These polymers are useful as fibers and other articles. The polymer has a property of increased flame retardancy.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Inventors: Justin W. Chan, Michael W. Cobb, Surbhi Mahajan, Sharlene Renee Williams
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Publication number: 20130338376Abstract: Described are sulfonated aromatic compounds and methods of making said compounds. The compounds are useful as monomers in a variety of polymers such as polyamides and polyesters, and can impart flame resistant properties.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Inventors: JUSTIN W. CHAN, MICHAEL W. COBB, SHARLENE RENEE WILLIAMS
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Publication number: 20130212780Abstract: A shaped article having a polymer having repeat units of Formula (I) and one or both of Formula (II) and (IIa): wherein M is a cation.Type: ApplicationFiled: December 5, 2011Publication date: August 22, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Justin W. Chan, Michael W. Cobb, John Henry Henry McMinn, Sharlene Renee Williams
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Publication number: 20130217854Abstract: Described is the preparation of sulfonated polyoxadiazole polymers with a high degree of sulfonation and good flammability properties. The polymers are useful in articles such as fibers.Type: ApplicationFiled: December 5, 2011Publication date: August 22, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Michael W. Cobb, Alexander Anthony Marchione, John Henry McMinn, Sharlene Renee Williams