Patents by Inventor Yuefei Tao
Yuefei Tao 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: 20220339188Abstract: The present invention is directed to an antimicrobial shoe insole comprising an antimicrobial composition. The antimicrobial shoe insole has the density from 0.12 to 0.30 g/cm3, preferably 0.18 to 0.22 g/cm3, the hardness of the shore C is 28 to 45, the ball rebound rate is ?65%, and anti-fatigue test (20% compression rate) is over 10,000 times. The antimicrobial shoe insole is formulated to have a sterilization rate over 99.99%, durable, and the mildew resistance index can be zero with no detectable mildew growth.Type: ApplicationFiled: July 10, 2022Publication date: October 27, 2022Inventors: Yuefei Tao, Shuiyuan Luo, Junqiu Zhu, Jessica Luo, Charles Tao
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Patent number: 10403770Abstract: A conductive paste composition comprises (i) an inorganic powder comprising at least a conductive powder, (ii) at least one microgel polymer, and (iii) a solvent. The paste composition may be used in a process for manufacturing an electrical device comprising: preparing a substrate; applying the conductive paste onto the substrate in a preselected pattern; and heating the applied conductive paste to form a conductive structure that provides an electrode for connecting the device. The paste composition beneficially permits the formation of narrow, high aspect ratio features in the conductive structure.Type: GrantFiled: February 4, 2016Date of Patent: September 3, 2019Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Michael Stephen Wolfe, John Donald Summers, Bryan Benedict Sauer, Hoang Vi Tran, Brian D Mather, Hee Hyun Lee, Esther Kim, Ma Helen Cativo, Yuefei Tao
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Publication number: 20160225925Abstract: A conductive paste composition comprises (i) an inorganic powder comprising at least a conductive powder, (ii) at least one microgel polymer, and (iii) a solvent. The paste composition may be used in a process for manufacturing an electrical device comprising: preparing a substrate; applying the conductive paste onto the substrate in a preselected pattern; and heating the applied conductive paste to form a conductive structure that provides an electrode for connecting the device. The paste composition beneficially permits the formation of narrow, high aspect ratio features in the conductive structure.Type: ApplicationFiled: February 4, 2016Publication date: August 4, 2016Inventors: MICHAEL STEPHEN WOLFE, JOHN DONALD SUMMERS, BRYAN BENEDICT SAUER, HOANG VI TRAN, BRIAN D MATHER, HEE HYUN LEE, ESTHER KIM, MA HELEN CATIVO, YUEFEI TAO
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Patent number: 9080034Abstract: Disclosed is a thermoplastic melt-mixed composition including: a) a polyamide resin; b) 0.50 to about 5.0 weight percent of one or more amino acid selected from the group consisting of primary amino acids and secondary amino acids; said amino acid having no hydroxyl groups and no more than one carboxylic acid; optionally, c) one or more polyepoxy compound including at least two or more epoxy groups; d) reinforcing agent; e) polymeric toughener; and f) further additives; wherein the weight percents of components a), b), c) d) e) and f) are based on the total weight of the thermoplastic melt-mixed composition. Also disclosed are processes for making the compositions.Type: GrantFiled: June 12, 2013Date of Patent: July 14, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Curtis R Center, Yuefei Tao, Jennifer L Thompson, Lech Wilczek, Chen Qian Zhao, Andrew Jay Duncan
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Patent number: 8952107Abstract: Disclosed is a thermoplastic melt-mixed composition including: a) a polyamide resin; b) a polyetherol compound provided by reacting: b1) one or more polyepoxy compound having at least two or more epoxy groups; and b2) one or more polyhydric alcohols having two or more hydroxyl groups; c) 10 to 60 weight percent of reinforcing agent; d) 0 to 30 weight percent polymeric toughener; and e) 0 to 10 weight percent further additives. Also disclosed are molded parts derived from the composition.Type: GrantFiled: June 12, 2013Date of Patent: February 10, 2015Assignee: E I du Pont de Nemours and CompanyInventors: Yuefei Tao, Lech Wilczek
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Patent number: 8871874Abstract: Disclosed is a thermoplastic melt-mixed composition including: a) a polyamide resin; b) a poly(amino acid)-polyol compound provided by reacting: b1) one or more amino acids selected from the group consisting of primary amino acids and secondary amino acids and combinations of these; the amino acid having no more than one hydroxyl group; and b2) one or more polyepoxy compound comprising at least two or more epoxy groups; the poly(amino acid)-polyol compound having a range of at least 10 percent conversion of epoxy equivalents of component (b1) up to, but excluding, the gel point of the components b1) and b2) and c) reinforcing agent; and, optionally, d) polymeric toughener; and f) further additives. Processes for making the composition are also disclosed.Type: GrantFiled: June 12, 2013Date of Patent: October 28, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Yuefei Tao, Lech Wilczek, Jennifer Leigh Thompson
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Publication number: 20140248499Abstract: A composite sheet comprises a substrate and a multi-layer coating on its outer surface, the coating comprising a metal layer and an outer polymeric layer formed from a precursor comprising a polymerizable composition that includes a olefin group and a moisture curable group, such as an isocyanate or silane group. The function of the polymeric layer includes protecting the metal layer from corrosion. A production process for the composite sheet includes depositing the precursor and exposing it to both beam radiation and moisture, which respectively promote polymerization and curing at different sites of the precursor. The amenability of the isocyanate or silane functionality to moisture-promoted coupling promotes substantially full conversion and curing of the precursor, even of portions of the substrate that are geometrically shadowed from incident beam radiation.Type: ApplicationFiled: March 31, 2014Publication date: September 4, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: NOEL STEPHEN BRABBS, Eric Huebsch, Yuefei Tao, Lech Wilczek
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Patent number: 8741393Abstract: A composite sheet is manufactured by depositing a multi-layer coating on the outer surface of a substrate, the coating comprising a metal layer and an outer polymeric layer formed from a precursor comprising a composition capable of being polymerized and/or cross-linked by free-radical processes. After the precursor is applied, the composite sheet is exposed to beam radiation and ozone, which both promote conversion of the precursor. The function of the cured polymeric layer includes protecting the metal layer from corrosion. The use of both beam radiation and ozone promotes substantially full conversion and curing of the precursor, even in portions of the substrate that are geometrically shadowed from incident beam radiation.Type: GrantFiled: December 28, 2011Date of Patent: June 3, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Noel Stephen Brabbs, Eric Huebsch, Yuefei Tao, Lech Wilczek
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Patent number: 8742029Abstract: Blends comprising 65-95 wt % poly(trimethylene terephthalate-co-sebacate), 5 to 35 wt % polylactic acid and a chain extender are provided that exhibit greatly increased melt strength compared to that of poly(trimethylene terephthalate-co-sebacate) alone. Such improvements allow these compositions to be processed readily by melt-blowing, which is useful for packaging and for preparing items such as biodegradable garbage bags.Type: GrantFiled: December 28, 2012Date of Patent: June 3, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Rameshchandra M Gohil, Yuefei Tao, Mark F Teasley, Lech Wilczek
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Publication number: 20130338262Abstract: Disclosed is a thermoplastic melt-mixed composition including: a) a polyamide resin; b) a poly(amino acid)-polyol compound provided by reacting: b1) one or more amino acids selected from the group consisting of primary amino acids and secondary amino acids and combinations of these; the amino acid having no more than one hydroxyl group; and b2) one or more polyepoxy compound comprising at least two or more epoxy groups; the poly(amino acid)-polyol compound having a range of at least 10 percent conversion of epoxy equivalents of component (b1) up to, but excluding, the gel point of the components b1) and b2) and c) reinforcing agent; and, optionally, d) polymeric toughener; and f) further additives. Processes for making the composition are also disclosed.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Inventors: Yuefei Tao, Lech Wilczek, Jennifer Leigh Thompson
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Publication number: 20130338260Abstract: Disclosed is a thermoplastic melt-mixed composition including: a) a semicrystalline polyamide resin; b) a polyepoxy compound including at least two or more epoxy groups; the polyepoxy compound having a number average molecular weight of less than 8000; one or more carboxylic acid compounds selected from the group consisting of polyacids, acid alcohols and combinations of these, the carboxylic acid compounds have a number average molecular weight of less than 2000; and optionally, d) reinforcing agent; e) polymeric toughener; and f) further additives.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: CURTIS R. CENTER, YUEFEI TAO, JENNIFER L. THOMPSON, LECH WILCZEK, CHEN QIAN ZHAO, ANDREW JAY DUNCAN
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Publication number: 20130338261Abstract: Disclosed is a thermoplastic melt-mixed composition including: a) a polyamide resin; b) 0.50 to about 5.0 weight percent of one or more amino acid selected from the group consisting of primary amino acids and secondary amino adds; said amino add having no hydroxyl groups and no more than one carboxylic add; optionally, c) one or more polyepoxy compound including at least two or more epoxy groups; d) reinforcing agent; e) polymeric toughener; and f) further additives; wherein the weight percents of components a), b), c) d) e) and f) are based on the total weight of the thermoplastic melt-mixed composition. Also disclosed are processes for making the compositions.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Inventors: Curtis R. Center, Yuefei Tao, Jennifer L. Thompson, Lech Wilczek, Chen Qian Zhao, Andrew Jay Duncan
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Publication number: 20130338301Abstract: Disclosed is a thermoplastic melt-mixed composition including: a) a semicrystalline polyimide; h) a polyacid-polyol compound provided by reacting: b1) one or more polyepoxy compound including at least two or more epoxy groups; and b2) one or more carboxylic acid compounds selected from the group consisting of polyacids, acid alcohols and combinations of these; said polyacid-polyol compound having a range of at least 10 percent conversion of epoxy equivalents of component (b1) up to, but excluding, the gel point of the components b1) and b2); c) reinforcing agent; and optionally d) polymeric toughener; and e) further additives. Also discloses are processes for preparing the thermoplastic melt-mixed blends.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Inventors: Yuefei Tao, Jennifer Leigh Thompson, Lech Wilczek
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Publication number: 20130338263Abstract: Disclosed is a thermoplastic melt-mixed composition including: a) a polyamide resin; b) a polyetherol compound provided by reacting: b1) one or more polyepoxy compound having at least two or more epoxy groups; and b2) one or more polyhydric alcohols having two or more hydroxyl groups; c) 10 to 60 weight percent of reinforcing agent; d) 0 to 30 weight percent polymeric toughener; and e) 0 to 10 weight percent further additives. Also disclosed are molded parts derived from the composition.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Inventors: Yuefei Tao, Lech Wilczek
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Publication number: 20130338274Abstract: Disclosed is a thermoplastic melt-mixed composition having a melt viscosity provided by melt-blending components including: a) a semi-crystalline polyamide resin having a melting point; b) one or more polyepoxy compound including at least two or more epoxy groups; c) one or more amino compounds selected from the group consisting polyamines and amino alcohols, and combinations of these, d) reinforcing agent; and optionally e) polymeric toughener; and f) further additives. Also disclosed are specific processes for preparing the thermoplastic compositions and molded parts derived from the thermoplastic compositions.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Inventors: Curtis R. Center, Yuefei Tao, Jennifer L. Thompson, Lech Wilczek, Chen Qian Zhao
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Publication number: 20130167461Abstract: A composite sheet is manufactured by depositing a multi-layer coating on the outer surface of a substrate, the coating comprising a metal layer and an outer polymeric layer formed from a precursor comprising a polymerizable composition that includes a olefin group and a moisture curable group, such as an isocyanate or silane group. After the precursor is applied, the composite sheet is exposed to beam radiation or plasma discharge, ozone, and moisture, which respectively promote polymerization and curing at different sites of the precursor. The function of the cured polymeric layer preferably includes protecting the metal layer from corrosion. The amenability of the isocyanate or silane functionality to moisture-promoted coupling promotes substantially full conversion and curing of the precursor, even of portions of the substrate that are geometrically shadowed from incident beam radiation.Type: ApplicationFiled: December 28, 2011Publication date: July 4, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Noel Stephen Brabbs, Eric Huebsch, Yuefei Tao, Lech Wilczek
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Publication number: 20130171460Abstract: A composite sheet is manufactured by depositing a multi-layer coating on the outer surface of a substrate, the coating comprising a metal layer and an outer polymeric layer formed from a precursor comprising a composition capable of being polymerized and/or cross-linked by free-radical processes. After the precursor is applied, the composite sheet is exposed to beam radiation and ozone, which both promote conversion of the precursor. The function of the cured polymeric layer includes protecting the metal layer from corrosion. The use of both beam radiation and ozone promotes substantially full conversion and curing of the precursor, even in portions of the substrate that are geometrically shadowed from incident beam radiation.Type: ApplicationFiled: December 28, 2011Publication date: July 4, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: NOEL STEPHEN BRABBS, Eric Huebsch, Yuefei Tao, Lech Wilczek
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Publication number: 20130122769Abstract: A composite sheet comprises a substrate and a multi-layer coating on its outer surface, the coating comprising a metal layer and an outer polymeric layer formed from a precursor comprising a polymerizable composition that includes a olefin group and a moisture curable group, such as an isocyanate or silane group. The function of the polymeric layer includes protecting the metal layer from corrosion. A production process for the composite sheet includes depositing the precursor and exposing it to both beam radiation and moisture, which respectively promote polymerization and curing at different sites of the precursor. The amenability of the isocyanate or silane functionality to moisture-promoted coupling promotes substantially full conversion and curing of the precursor, even of portions of the substrate that are geometrically shadowed from incident beam radiation.Type: ApplicationFiled: November 10, 2011Publication date: May 16, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Noel Stephen Brabbs, Eric Huebsch, Yuefei Tao, Lech Wilczek
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Publication number: 20130122316Abstract: A composite sheet is manufactured by depositing a multi-layer coating on the outer surface of a substrate, the coating comprising a metal layer and an outer polymeric layer formed from a precursor comprising a polymerizable composition that includes a olefin group and a moisture curable group, such as an isocyanate or silane group. After the precursor is applied, the composite sheet is exposed to both beam radiation and moisture, which respectively promote polymerization and curing at different sites of the precursor. The function of the cured polymeric layer includes protecting the metal layer from corrosion. The amenability of the isocyanate or silane functionality to moisture-promoted coupling promotes substantially full conversion and curing of the precursor, even of portions of the substrate that are geometrically shadowed from incident beam radiation.Type: ApplicationFiled: November 10, 2011Publication date: May 16, 2013Applicant: E. I. Du Pont De Nemours and CompanyInventors: Noel Stephen Brabbs, Eric Huebsch, Yuefei Tao, Lech Wilczek
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Publication number: 20020013437Abstract: Polymers obtainable by a process for the living free radical polymerization of one or more ethylenically unsaturated monomers with the use of at least one free radical polymerization initiator and in the presence of one or more stable N-oxyl radicals, at least one stable N-oxyl radical having polymerizable double bonds, are used for processing to give moldings, films, fibers and foams.Type: ApplicationFiled: June 26, 2001Publication date: January 31, 2002Applicant: BASF AktiengesellschaftInventors: Graham Edmund McKee, Susanne Brinkmann-Rengel, Eric Wassner, Yulliang Yang, Chengming Li, Junpo He, Yuefei Tao, Zhongmin Wang, Jingyun Pan