Patents by Inventor Xiaozhong Tang
Xiaozhong Tang 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: 7897799Abstract: A process for preparing oxo-hexameric zirconium-octaamino acid, such as glycine, salt comprising: mixing zirconium (Zr):amino acid:and mineral acid, in a molar ratio of 1:about 1 to about 15:about 1.5 to about 3 to form a mixture; optionally, filtering the mixture; and optionally, drying the mixture. An oxo-hexameric zirconium-octaamino acid salt of the molecular formula: oxo-[Zr6AminoAcid8].Xy.nH2O, wherein Zr is zirconium, X is an anion of a mineral acid, and n and y are numerical values from 0 to 20. A method of making an antiperspirant active zirconium-aluminum-amino acid compound comprising mixing an oxo-hexameric zirconium-octaamino acid salt with aluminum chlorohydrex and/or aluminum chloride, and drying the mixture. The smallest oxo-hexameric zirconium-octaamino acid salt of this invention provides stability, efficacy, and shelf life of zirconium-amino acid species for formulations in antiperspirant and/or deodorant compositions.Type: GrantFiled: September 12, 2008Date of Patent: March 1, 2011Assignee: Colgate-Palmolive CompanyInventors: Long Pan, LaTonya Kilpatrick, Xiaozhong Tang
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Publication number: 20110014144Abstract: An antiperspirant composition comprising a mixing product of at least one salt chosen from at least one aluminum salt, at least one aluminum-zirconium salt, at least one aluminum salt complex, and at least one aluminum-zirconium salt complex; at least one cosmetically acceptable hydroxy acid; and at least one cosmetically acceptable quaternary ammonium acid compound.Type: ApplicationFiled: September 22, 2010Publication date: January 20, 2011Applicant: COLGATE-PALMOLIVE COMPANYInventors: Jairajh Mattai, Xiaozhong Tang, Marian Holerca
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Publication number: 20100234627Abstract: A process for preparing oxo-hexameric zirconium-octaamino acid, such as glycine, salt comprising: mixing zirconium (Zr): amino acid: and mineral acid, in a molar ratio of 1: about 1 to about 15: about 1.5 to about 3 to form a mixture; optionally, filtering the mixture; and optionally, drying the mixture. An oxo-hexameric zirconium-octaamino acid salt of the molecular formula: oxo-[Zr6AminoAcid8].Xy.nH2O, wherein Zr is zirconium, X is an anion of a mineral acid, and n and y are numerical values from 0 to 20. A method of making an antiperspirant active zirconium-aluminum-amino acid compound comprising mixing an oxo-hexameric zirconium-octaamino acid salt with aluminum chlorohydrex and/or aluminum chloride, and drying the mixture. The smallest oxo-hexameric zirconium-octaamino acid salt of this invention provides stability, efficacy, and shelf life of zirconium-amino acid species for formulations in antiperspirant and/or deodorant compositions.Type: ApplicationFiled: September 12, 2008Publication date: September 16, 2010Applicant: COLGATE-PALMOLIVE COMPANYInventors: Long Pan, LaTonya Kilpatrick, Xiaozhong Tang
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Publication number: 20080233067Abstract: This invention comprises: (1) a wet grinding method for enhancing the activity of an aluminum or an aluminum/zirconium salt without the dilution and heating traditionally required wherein the enhancement is described as forming a salt wherein the amount of smaller aluminum species as represented by Peak 4+Peak 5 is increased by an amount of at least 10% over the parent salt; and, if zirconium is present, the area of Peak 1 in the parent salt is at least 10% greater than the area of Peak 1 after grinding; (2) an enhanced aluminum or aluminum/zirconium salt itself, and (3) anhydrous (less than 4% water excluding waters of hydration for the enhanced salt) antiperspirant and/or deodorant products made with the salts described in (2).Type: ApplicationFiled: April 21, 2008Publication date: September 25, 2008Applicant: COLGATE-PALMOLIVE COMPANYInventors: Wilson Lee, Xiaozhong Tang, John Brahms, James Cush, Anthony Esposito, Marie Johansson
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Patent number: 7311898Abstract: A zirconium-free aluminum salt which: (a) has an aluminum to chloride molar ratio in the range of 0.5-2.5:1; (b) comprises a nitrogen containing buffering material in an amount such that the ratio of nitrogen containing material to aluminum is the range of 0.05-0.26:1, and which nitrogen containing material is selected from the group consisting of a nitrogen containing buffering material of formula where n is a number in the range of 1-20, and each of R1, R2, and R3 is independently selected from the group consisting of hydrogen, methyl and ethyl; and (c) the salt has a pH in the range of 2-4 at a concentration of 15%; wherein the salt is free of any other halide scavenging material and has a value of at least 0.50 for the ratio calculated as: area of Peak 5/total area under Peak 2+Peak 3+Peak 4+Peak 5.Type: GrantFiled: March 15, 2005Date of Patent: December 25, 2007Assignee: Colgate-Palmolive CompanyInventors: Xiaozhong Tang, Lin Fei, Suman Chopra, Peter Hilliard, Jr.
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Publication number: 20070110687Abstract: An antiperspirant composition comprising a mixing product of at least one salt chosen from at least one aluminum salt, at least one aluminum-zirconium salt, at least one aluminum salt complex, and at least one aluminum-zirconium salt complex; at least one cosmetically acceptable hydroxy acid; and at least one cosmetically acceptable quaternary ammonium acid compound.Type: ApplicationFiled: November 16, 2006Publication date: May 17, 2007Inventors: Jairajh Mattai, Xiaozhong Tang, Marian Holerca, Latonya Kilpatrick-Liverman
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Patent number: 7204976Abstract: The invention is a clear, elastomer-free, gel composition comprising: (a) 14–30 weight % of an antiperspirant active having a low metal to chloride ratio; (b) 7–23.3 weight % of one or more cyclomethicones having a flash point of 100 degrees C. or less; (c) 0.6–0.9 weight % of a silicone surfactant having an HLB value?8; (d) 30–70 weight % water; (e) 3.85–10 weight % of a water soluble glycol or polyglycol and (f) 0.1–3.0 weight % of a non-siliconized organic fragrance solubilizer; wherein the composition is a gel having a viscosity greater than 150,000 centipoise and a ratio of oil phase to water phase in the range of 10:90 to 24:76.Type: GrantFiled: May 30, 2003Date of Patent: April 17, 2007Assignee: Colgate-Palmolive CompanyInventors: Christine Popoff, Suman Chopra, Mardoqueo Bustos, Xiaozhong Tang, Lin Fei
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Publication number: 20060204463Abstract: An antiperspirant composition comprising an antiperspirant salt selected from an aluminum antiperspirant salt, an aluminum-zirconium antiperspirant salt, and a mixture thereof; a betaine component selected from betaine, betaine hydrochloride, and a mixture thereof; a calcium salt; and water.Type: ApplicationFiled: February 6, 2006Publication date: September 14, 2006Inventors: Xiaozhong Tang, Marian Holerca, Donghui Wu, Christine Popoff
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Patent number: 7011822Abstract: A low residue antiperspirant and/or deodorant composition in the form of an anhydrous, surfactant-free and antiseptic alcohol-free suspension exhibiting a syneresis of less than 8% which is made by combining selected amounts of: (a) a cyclomethicone (and) dimethicone crosspolymer made with an ?Si—H containing polysiloxane and an alpha, omega-diene of formula CH2?CH(CH2)xCH?CH2 which crosspolymer has a viscosity in the range of 50,000–3,000,000 centipoise, preferably with a nonvolatiles content of 10–14% in cyclomethicone; (b) polyethylene beads having a density in the range of 0.91–0.98 grams/cm3 and a particle size in the range of 5–40 microns; (c) a volatile silicone; (d) an emollient (or a mixture of two or more emollients) which may include a non-volatile silicone and an additional amount of a volatile silicone; and (e) an effective amount of an antiperspirant active material in an amount sufficient to have an antiperspirant and/or a deodorant effect.Type: GrantFiled: January 23, 2003Date of Patent: March 14, 2006Assignee: Colgate-Palmolive CompanyInventors: Eric Guenin, Jairajh Mattai, John Afflitto, John Hogan, John Jonas, Wilson Lee, Elizabeth Linn, Rosemary Munsayac, Xiaozhong Tang, Kathy Potechin
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Patent number: 6986885Abstract: A low residue antiperspirant and/or deodorant composition in the form of an anhydrous, surfactant-free and antiseptic alcohol-free suspension exhibiting a syneresis of less than 8% is disclosed which comprises: (a) a dimethicone/vinyldimethicone crosspolymer composition made by reacting a polymethylhydrogensiloxane with an alpha, omega-divinylpolydimethyl siloxane for which the dimethicone/vinyldimethicone crosspolymer composition is used at a concentration of 0.5–10% in cyclomethicone; (b) polyethylene beads having a density in the range of 0.91–0.98 grams/cm3 and a particle size in the range of 5–40 microns, wherein the polyethylene beads are used in an amount of at least 2% by weight based on the total weight of the composition; (c) a volatile silicone; (d) an emollient or mixture of two or more emollients; and (e) an effective amount of an antiperspirant active material.Type: GrantFiled: October 9, 2002Date of Patent: January 17, 2006Assignee: Colgate-Palmolive CompanyInventors: Jairajh Mattai, Eric Guenin, John Afflitto, John Hogan, John Jonas, Wilson Lee, Elizabeth Linn, Rosemary Munsayac, Xiaozhong Tang
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Patent number: 6969510Abstract: A glycine-free aluminum and/or zirconium Betaine salt having a metal to chloride molar ratio in the range of 0.3-2.5:1, a Betaine:aluminum molar ratio in the range of 0.05-1.0:1 and/or a Betaine:zirconium molar ratio in the range of 0.2-3.Type: GrantFiled: June 16, 2003Date of Patent: November 29, 2005Assignee: Colgate-Palmolive CompanyInventors: Marian Holerca, Xiaozhong Tang, Heng Cai
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Publication number: 20050191256Abstract: A glycine-free aluminum and/or zirconium Betaine salt having a metal to chloride molar ratio in the range of 0.3-2.5:1, a Betaine:aluminum molar ratio in the range of 0.05-1.0:1 and/or a Betaine:zirconium molar ratio in the range of 0.2-3.Type: ApplicationFiled: May 3, 2005Publication date: September 1, 2005Inventors: Marian Holerca, Xiaozhong Tang, Heng Cai
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Publication number: 20050158261Abstract: A zirconium-free aluminum salt which: (a) has an aluminum to chloride molar ratio in the range of 0.5-2.5:1; (b) comprises a nitrogen containing buffering material in an amount such that the ratio of nitrogen containing material to aluminum is the range of 0.05-0.26:1, and which nitrogen containing material is selected from the group consisting of a nitrogen containing buffering material of formula where n is a number in the range of 1-20, and each of R1, R2, and R3 is independently selected from the group consisting of hydrogen, methyl and ethyl; and (c) the salt has a pH in the range of 2-4 at a concentration of 15%; wherein the salt is free of any other halide scavenging material and has a value of at least 0.50 for the ratio calculated as: area of Peak 5/total area under Peak 2+Peak 3+Peak 4+Peak 5.Type: ApplicationFiled: March 15, 2005Publication date: July 21, 2005Inventors: Xiaozhong Tang, Lin Fei, Suman Chopra, Peter Hilliard
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Publication number: 20040241122Abstract: The invention is a clear, elastomer-free, gel composition comprising: (a) 14-30 weight % of an antiperspirant active having a low metal to chloride ratio; (b) 7-23.3 weight % of one or more cyclomethicones having a flash point of 100 degrees C. or less; (c) 0.6-0.9 weight % of a silicone surfactant having an HLB value≦8; (d) 30-70 weight % water; (e) 3.85-10 weight % of a water soluble glycol or polyglycol and (f) 0.1-3.0 weight % of a non-siliconized organic fragrance solubilizer; wherein the composition is a gel having a viscosity greater than 150,000 centipoise and a ratio of oil phase to water phase in the range of 10:90 to 24:76.Type: ApplicationFiled: May 30, 2003Publication date: December 2, 2004Inventors: Christine Popoff, Suman Chopra, Mardoqueo Bustos, Xiaozhong Tang, Lin Fei
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Publication number: 20040204601Abstract: A glycine-free aluminum and/or zirconium Betaine salt having a metal to chloride molar ratio in the range of 0.3-2.5:1, a Betaine:aluminum molar ratio in the range of 0.05-1.0:1 and/or a Betaine:zirconium molar ratio in the range of 0.2-3.Type: ApplicationFiled: June 16, 2003Publication date: October 14, 2004Inventors: Marian Holerca, Xiaozhong Tang, Heng Cai
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Publication number: 20040198998Abstract: A glycine-free aluminum and/or zirconium Betaine salt having a metal to chloride molar ratio in the range of 0.3-2.5:1, a Betaine:aluminum molar ratio in the range of 0.05-1.0:1 and/or a Betaine:zirconium molar ratio in the range of 0.2-3.Type: ApplicationFiled: April 4, 2003Publication date: October 7, 2004Inventors: Marian Holerca, Xiaozhong Tang, Heng Cai
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Publication number: 20040109833Abstract: A zirconium-free aluminum salt which: (a) has an aluminum to chloride molar ratio in the range of 0.5-2.5:1; (b) comprises a nitrogen containing buffering material in an amount such that the ratio of nitrogen containing material to aluminum is the range of 0.05-0.Type: ApplicationFiled: December 9, 2002Publication date: June 10, 2004Inventors: Xiaozhong Tang, Lin Fei, Suman Chopra, Peter Hilliard
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Publication number: 20040028628Abstract: A low residue antiperspirant and/or deodorant composition in the form of an anhydrous, surfactant-free and antiseptic alcohol-free suspension exhibiting a syneresis of less than 8% which is made by combining selected amounts of: (a) a cyclomethicone (and) dimethicone crosspolymer made with an ≡Si—H containing polysiloxane and an alpha, omega-diene of formula CH2═CH(CH2)xCH═CH2 which crosspolymer has a viscosity in the range of 50,000-3,000,000 centipoise, preferably with a nonvolatiles content of 10-14% in cyclomethicone; (b) polyethylene beads having a density in the range of 0.91-0.98 grams/cm3 and a particle size in the range of 5-40 microns; (c) a volatile silicone; (d) an emollient (or a mixture of two or more emollients) which may include a non-volatile silicone and an additional amount of a volatile silicone; and (e) an effective amount of an antiperspirant active material in an amount sufficient to have an antiperspirant and/or a deodorant effect.Type: ApplicationFiled: January 23, 2003Publication date: February 12, 2004Applicant: Colgate-Palmolive CompanyInventors: Eric Guenin, Jairajh Mattai, John Afflitto, John Hogan, John Jonas, Wilson Lee, Elizabeth Linn, Rosemary Munsayac, Xiaozhong Tang, Kathy Potechin
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Publication number: 20040022750Abstract: This invention comprises: (1) a wet grinding method for enhancing the activity of an aluminum or an aluminum/zirconium salt without the dilution and heating traditionally required wherein the enhancement is described as forming a salt wherein the amount of smaller aluminum species as represented by Peak 4+Peak 5 is increased by an amount of at least 10% over the parent salt; and, if zirconium is present, the area of Peak 1 in the parent salt is at least 10% greater than the area of Peak 1 after grinding; (2) an enhanced aluminum or aluminum/zirconium salt itself; and (3) anhydrous (less than 4% water excluding waters of hydration for the enhanced salt) antiperspirant and/or deodorant products made with the salts described in (2).Type: ApplicationFiled: August 26, 2002Publication date: February 5, 2004Applicant: Colgate-Palmolive CompanyInventors: Wilson Lee, Xiaozhong Tang, John Brahms, James Cush, Anthony Esposito, Marie Johansson
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Patent number: 6682749Abstract: This invention comprises low residue cosmetic compositions (especially underarm products) which are made by combining an active ingredient; a silicone gel material itself comprising an elastomer composition; and at least one selected surfactant having an HLB value in the range of 8-16. The compositions of this invention exhibit reduced or eliminated film formation when applied to the skin and increased availABILity of the active ingredient.Type: GrantFiled: March 19, 1999Date of Patent: January 27, 2004Assignee: Colgate-Palmolive CompanyInventors: Kathy J. Potechin, Eric P. Guenin, Xiaozhong Tang, Jairajh Mattai, Elizabeth Linn, Wilson Lee, Paul J. Vincenti