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).

  • Patent number: 7897799
    Abstract: 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: Grant
    Filed: September 12, 2008
    Date of Patent: March 1, 2011
    Assignee: Colgate-Palmolive Company
    Inventors: Long Pan, LaTonya Kilpatrick, Xiaozhong Tang
  • Publication number: 20110014144
    Abstract: 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: Application
    Filed: September 22, 2010
    Publication date: January 20, 2011
    Applicant: COLGATE-PALMOLIVE COMPANY
    Inventors: Jairajh Mattai, Xiaozhong Tang, Marian Holerca
  • Publication number: 20100234627
    Abstract: 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: Application
    Filed: September 12, 2008
    Publication date: September 16, 2010
    Applicant: COLGATE-PALMOLIVE COMPANY
    Inventors: Long Pan, LaTonya Kilpatrick, Xiaozhong Tang
  • Publication number: 20080233067
    Abstract: 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: Application
    Filed: April 21, 2008
    Publication date: September 25, 2008
    Applicant: COLGATE-PALMOLIVE COMPANY
    Inventors: Wilson Lee, Xiaozhong Tang, John Brahms, James Cush, Anthony Esposito, Marie Johansson
  • Patent number: 7311898
    Abstract: 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: Grant
    Filed: March 15, 2005
    Date of Patent: December 25, 2007
    Assignee: Colgate-Palmolive Company
    Inventors: Xiaozhong Tang, Lin Fei, Suman Chopra, Peter Hilliard, Jr.
  • Publication number: 20070110687
    Abstract: 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: Application
    Filed: November 16, 2006
    Publication date: May 17, 2007
    Inventors: Jairajh Mattai, Xiaozhong Tang, Marian Holerca, Latonya Kilpatrick-Liverman
  • Patent number: 7204976
    Abstract: 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: Grant
    Filed: May 30, 2003
    Date of Patent: April 17, 2007
    Assignee: Colgate-Palmolive Company
    Inventors: Christine Popoff, Suman Chopra, Mardoqueo Bustos, Xiaozhong Tang, Lin Fei
  • Publication number: 20060204463
    Abstract: 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: Application
    Filed: February 6, 2006
    Publication date: September 14, 2006
    Inventors: Xiaozhong Tang, Marian Holerca, Donghui Wu, Christine Popoff
  • Patent number: 7011822
    Abstract: 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: Grant
    Filed: January 23, 2003
    Date of Patent: March 14, 2006
    Assignee: Colgate-Palmolive Company
    Inventors: Eric Guenin, Jairajh Mattai, John Afflitto, John Hogan, John Jonas, Wilson Lee, Elizabeth Linn, Rosemary Munsayac, Xiaozhong Tang, Kathy Potechin
  • Patent number: 6986885
    Abstract: 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: Grant
    Filed: October 9, 2002
    Date of Patent: January 17, 2006
    Assignee: Colgate-Palmolive Company
    Inventors: Jairajh Mattai, Eric Guenin, John Afflitto, John Hogan, John Jonas, Wilson Lee, Elizabeth Linn, Rosemary Munsayac, Xiaozhong Tang
  • Patent number: 6969510
    Abstract: 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: Grant
    Filed: June 16, 2003
    Date of Patent: November 29, 2005
    Assignee: Colgate-Palmolive Company
    Inventors: Marian Holerca, Xiaozhong Tang, Heng Cai
  • Publication number: 20050191256
    Abstract: 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: Application
    Filed: May 3, 2005
    Publication date: September 1, 2005
    Inventors: Marian Holerca, Xiaozhong Tang, Heng Cai
  • Publication number: 20050158261
    Abstract: 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: Application
    Filed: March 15, 2005
    Publication date: July 21, 2005
    Inventors: Xiaozhong Tang, Lin Fei, Suman Chopra, Peter Hilliard
  • Publication number: 20040241122
    Abstract: 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: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Inventors: Christine Popoff, Suman Chopra, Mardoqueo Bustos, Xiaozhong Tang, Lin Fei
  • Publication number: 20040204601
    Abstract: 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: Application
    Filed: June 16, 2003
    Publication date: October 14, 2004
    Inventors: Marian Holerca, Xiaozhong Tang, Heng Cai
  • Publication number: 20040198998
    Abstract: 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: Application
    Filed: April 4, 2003
    Publication date: October 7, 2004
    Inventors: Marian Holerca, Xiaozhong Tang, Heng Cai
  • Publication number: 20040109833
    Abstract: 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: Application
    Filed: December 9, 2002
    Publication date: June 10, 2004
    Inventors: Xiaozhong Tang, Lin Fei, Suman Chopra, Peter Hilliard
  • Publication number: 20040028628
    Abstract: 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: Application
    Filed: January 23, 2003
    Publication date: February 12, 2004
    Applicant: Colgate-Palmolive Company
    Inventors: Eric Guenin, Jairajh Mattai, John Afflitto, John Hogan, John Jonas, Wilson Lee, Elizabeth Linn, Rosemary Munsayac, Xiaozhong Tang, Kathy Potechin
  • Publication number: 20040022750
    Abstract: 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: Application
    Filed: August 26, 2002
    Publication date: February 5, 2004
    Applicant: Colgate-Palmolive Company
    Inventors: Wilson Lee, Xiaozhong Tang, John Brahms, James Cush, Anthony Esposito, Marie Johansson
  • Patent number: 6682749
    Abstract: 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: Grant
    Filed: March 19, 1999
    Date of Patent: January 27, 2004
    Assignee: Colgate-Palmolive Company
    Inventors: Kathy J. Potechin, Eric P. Guenin, Xiaozhong Tang, Jairajh Mattai, Elizabeth Linn, Wilson Lee, Paul J. Vincenti