Patents by Inventor Qingwen Wendy Yuan-Huffman
Qingwen Wendy Yuan-Huffman 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: 20230036093Abstract: An epoxidized oil-based surfactant is the reaction product of an epoxidized compound and a primary and/or secondary alkanolamine, wherein the epoxidized compound is chosen from an epoxidized oil, an epoxidized fatty acid, an epoxidized fatty acid ester, and combinations thereof. An herbicidal composition includes glyphosate or a salt thereof and at least one epoxidized oil-based surfactant. The herbicidal composition is used in a method of controlling unwanted vegetation wherein the method includes the step of applying to the unwanted vegetation a herbicidally effective amount of the aforementioned herbicidal composition. The epoxidized oil-based surfactant is prepared using a method that includes reacting the epoxidized compound and the primary and/or secondary alkanolamine.Type: ApplicationFiled: December 14, 2020Publication date: February 2, 2023Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.Inventors: Hanamanthsa BEVINAKATTI, Qingwen Wendy YUAN-HUFFMAN, Shawn ZHU, Mojahedul ISLAM
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Publication number: 20190335748Abstract: The present invention relates to an aqueous agrochemical spray solution containing an agrochemical active and a surfactant. The spray solution comprises a dispersed phase comprising dispersed particles which have an average particle size between 1 to 100 microns and the concentration of said dispersed particles is from about 0.001 to 5 wt %. The aqueous agrochemical spray solution is capable of reducing the volume of the fine droplets in mist whose size is less than 150 microns during spraying by at least 20% compared to the same aqueous spray solution without the presence of the surfactant. The present invention also relates to a method of reducing the spray drift of an aqueous agrochemical spray solution upon spraying with a spraying apparatus. The method includes adding the surfactant to the aqueous agrochemical spray solution in an amount effective to form the dispersed phase.Type: ApplicationFiled: July 22, 2019Publication date: November 7, 2019Applicants: AKZO NOBEL CHEMICALS INTERNATIONAL B.V., DOW AGROSCIENCES LLCInventors: Jinxia Susan SUN, Shawn ZHU, Martin W. MURRAY, Marcus BOONE, Michael WALTERS, Qingwen Wendy YUAN-HUFFMAN, Christine PUGLISI, Brandon Matthew DOWNER, Stephen L. WILSON
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Patent number: 10357032Abstract: The present invention relates to an aqueous agrochemical spray solution containing an agrochemical active and a surfactant. The spray solution comprises a dispersed phase comprising dispersed particles which have an average particle size between 1 to 100 microns and the concentration of said dispersed particles is from about 0.001 to 5 wt %. The aqueous agrochemical spray solution is capable of reducing the volume of the fine droplets in mist whose size is less than 150 microns during spraying by at least 20% compared to the same aqueous spray solution without the presence of the surfactant. The present invention also relates to a method of reducing the spray drift of an aqueous agrochemical spray solution upon spraying with a spraying apparatus. The method includes adding the surfactant to the aqueous agrochemical spray solution in an amount effective to form the dispersed phase.Type: GrantFiled: January 12, 2018Date of Patent: July 23, 2019Assignees: AKZO NOBEL CHEMICALS INTERNATIONAL B.V., DOW AGROSCIENCES LLCInventors: Jinxia Susan Sun, Shawn Zhu, Martin W. Murray, Marcus Boone, Michael Walters, Qingwen Wendy Yuan-Huffman, Christine Puglisi, Brandon Matthew Downer, Stephen L. Wilson
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Patent number: 10017683Abstract: Compositions and methods are provided for delayed breaking of viscoelastic surfactant gels inside subterranean formations. Breaking is accomplished without mechanical intervention or use of a second fluid. The delayed breaking agent is a hydrophobically modified alkali swellable emulsion polymer, which can be a copolymer comprising acidic monomers, nonionic monomers, and associative monomers. The viscoelastic surfactant can be a zwitterionic surfactant, and can be selected from the group consisting of sultaines, betaines, and amidoamine oxides.Type: GrantFiled: November 23, 2015Date of Patent: July 10, 2018Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Qingwen Wendy Yuan-Huffman, Kai Kang, Bo Wu
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Publication number: 20180132480Abstract: The present invention relates to an aqueous agrochemical spray solution containing an agrochemical active and a surfactant. The spray solution comprises a dispersed phase comprising dispersed particles which have an average particle size between 1 to 100 microns and the concentration of said dispersed particles is from about 0.001 to 5 wt %. The aqueous agrochemical spray solution is capable of reducing the volume of the fine droplets in mist whose size is less than 150 microns during spraying by at least 20% compared to the same aqueous spray solution without the presence of the surfactant. The present invention also relates to a method of reducing the spray drift of an aqueous agrochemical spray solution upon spraying with a spraying apparatus. The method includes adding the surfactant to the aqueous agrochemical spray solution in an amount effective to form the dispersed phase.Type: ApplicationFiled: January 12, 2018Publication date: May 17, 2018Applicants: AKZO NOBEL CHEMICALS INTERNATIONAL B.V., DOW AGROSCIENCES LLCInventors: Jinxia Susan SUN, Shawn ZHU, Martin W. MURRAY, Marcus BOONE, Michael WALTERS, Qingwen Wendy YUAN-HUFFMAN, Christine PUGLISI, Brandon Matthew DOWNER, Stephen L. WILSON
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Patent number: 9888683Abstract: The present invention relates to an aqueous agrochemical spray solution containing an agrochemical active and a surfactant. The spray solution comprises a dispersed phase comprising dispersed particles which have an average particle size between 1 to 100 microns and the concentration of said dispersed particles is from about 0.001 to 5 wt %. The aqueous agrochemical spray solution is capable of reducing the volume of the fine droplets in mist whose size is less than 150 microns during spraying by at least 20% compared to the same aqueous spray solution without the presence of the surfactant. The present invention also relates to a method of reducing the spray drift of an aqueous agrochemical spray solution upon spraying with a spraying apparatus. The method includes adding the surfactant to the aqueous agrochemical spray solution in an amount effective to form the dispersed phase.Type: GrantFiled: December 21, 2012Date of Patent: February 13, 2018Assignees: AKZO NOBEL CHEMICALS INTERNATIONAL B.V., DOW AGROSCIENCES LLCInventors: Jinxia Susan Sun, Shawn Zhu, Martin W. Murray, Marcus Boone, Michael Walters, Qingwen Wendy Yuan-Huffman, Christine Puglisi, Brandon Matthew Downer, Stephen L. Wilson
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Publication number: 20170313929Abstract: Compositions and methods are provided for delayed breaking of viscoelastic surfactant gels inside subterranean formations. Breaking is accomplished without mechanical intervention or use of a second fluid. The delayed breaking agent is a hydrophobically modified alkali swellable emulsion polymer, which can be a copolymer comprising acidic monomers, nonionic monomers, and associative monomers. The viscoelastic surfactant can be a zwitterionic surfactant, and can be selected from the group consisting of sultaines, betaines, and amidoamine oxides.Type: ApplicationFiled: November 23, 2015Publication date: November 2, 2017Applicant: Akzo Nobel Chemicals International B.V.Inventors: Qingwen Wendy YUAN-HUFFMAN, Kai KANG, Bo WU
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Publication number: 20160249607Abstract: A liquid composition is provided, comprising 2 to 30 wt % of a non-ionic water-soluble polysaccharide ether, 55 to 90 wt %, of a polyol having 3 to 4 hydroxyl groups, 5 to 25 wt % of water, and 0.1 to 5 wt % of at least one multivalent inorganic anion salt. The invention also provides agricultural formulations obtained by adding such a liquid composition and an agriculturally active ingredient to water.Type: ApplicationFiled: October 20, 2014Publication date: September 1, 2016Applicant: Akzo Nobel Chemicals International B.V.Inventors: Peter Westbye, Qingwen Wendy Yuan-Huffman
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Patent number: 9080043Abstract: An aqueous viscoelastic composition is provided comprising at least one viscoelastic surfactant, and at least one hydrophobically modified polymer, which is formed from polymerization of ethylenically unsaturated monomers; has a number average molecular weight of from 1,000 to 100,000 Da; and to a level of at least 0.1 mole %, based on the amount of monomer units in the polymer, contains monomeric units each covalently bonded to a pendant, optionally alkoxylated, hydrocarbyl group having from 6 to 40 carbon atoms, said pendant, optionally alkoxylated, hydrocarbyl group being connected to the backbone of said hydrophobically modified polymer via a non-ester containing linking group.Type: GrantFiled: December 15, 2011Date of Patent: July 14, 2015Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Qingwen Wendy Yuan-Huffman, Klin Aloysius Rodrigues, Jian Zhou, Stuart Peter Robert Holt, Elliot Isaac Band
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Publication number: 20140378304Abstract: The present invention relates to an aqueous agrochemical spray solution containing an agrochemical active and a surfactant. The spray solution comprises a dispersed phase comprising dispersed particles which have an average particle size between 1 to 100 microns and the concentration of said dispersed particles is from about 0.001 to 5 wt %. The aqueous agrochemical spray solution is capable of reducing the volume of the fine droplets in mist whose size is less than 150 microns during spraying by at least 20% compared to the same aqueous spray solution without the presence of the surfactant. The present invention also relates to a method of reducing the spray drift of an aqueous agrochemical spray solution upon spraying with a spraying apparatus. The method includes adding the surfactant to the aqueous agrochemical spray solution in an amount effective to form the dispersed phase.Type: ApplicationFiled: December 21, 2012Publication date: December 25, 2014Inventors: Jinxia Susan Sun, Shawn Zhu, Martin W. Murray, Marcus Boone, Michael Walters, Qingwen Wendy Yuan-Huffman, Christine Puglisi
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Publication number: 20130274170Abstract: An aqueous viscoelastic composition is provided comprising at least one viscoelastic surfactant, and at least one hydrophobically modified polymer, which is formed from polymerization of ethylenically unsaturated monomers; has a number average molecular weight of from 1,000 to 100,000 Da; and to a level of at least 0.1 mole %, based on the amount of monomer units in the polymer, contains monomeric units each covalently bonded to a pendant, optionally alkoxylated, hydrocarbyl group having from 6 to 40 carbon atoms, said pendant, optionally alkoxylated, hydrocarbyl group being connected to the backbone of said hydrophobically modified polymer via a non-ester containing linking group.Type: ApplicationFiled: December 15, 2011Publication date: October 17, 2013Inventors: Qingwen Wendy Yuan-Huffman, Klin Aloysius Rodrigues, Jian Zhou, Stuart Peter Robert Holt, Elliot Isaac Band
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Publication number: 20130266531Abstract: Personal care compositions, methods for making and uses thereof include an aqueous viscoelastic composition and a personal care active ingredient. The viscoelastic composition includes at least one surfactant and at least one hydrophobically-modified polymers with low molecular weights.Type: ApplicationFiled: December 15, 2011Publication date: October 10, 2013Applicant: Akzo Nobel Chemicals International B.V.Inventors: Qingwen Wendy Yuan-Huffman, Klin A. Rodrigues, Jian Zhou, Stuart Peter Robert Holt, Elliot Isaac Band, JR., Samuel Anthony Vona
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Publication number: 20100330376Abstract: Polysaccharide thermosetting systems and composites utilizing such systems include formaldehyde free binders formed from at least one polysaccharide and at least one polysaccharide crosslinker.Type: ApplicationFiled: December 18, 2008Publication date: December 30, 2010Applicant: AKZO NOBEL N.V.Inventors: Ralph Trksak, Daniel B. Solarek, Solweig Vitry, Klin A. Rodrigues, Qingwen Wendy Yuan-Huffman, Andreas Puhlfuerss
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Publication number: 20100121022Abstract: A process for the bulk polymerization, in the absence of any solvent, of a reactant containing azide functionality and a reactant containing a terminal alkyne functionality, in the presence of Cu (I) catalyst or in the presence of a Cu(II) catalyst without a reducing agent, is described. Polymerization can be achieved at temperatures less than 100° C., which is suitable for low temperature cures. A controlled synthesis for low molecular weight oligomers is disclosed.Type: ApplicationFiled: July 26, 2007Publication date: May 13, 2010Inventors: Osama M. Musa, Laxmisha M. Sridhar, Qingwen Wendy Yuan-Huffman