Patents by Inventor Tirucherai Vasudevan

Tirucherai Vasudevan 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).

  • Publication number: 20060019847
    Abstract: Compositions used for cleansing hair and skin based on the combination of a sulfosuccinate surfactant and an amphoteric surfactant are described that are very mild but do not compromise in-use properties such as lather and are economical. A route to solve the intrinsic instability of such aqueous compositions in storage has been developed based on the use of electrolytes. The electrolytes are present at a level sufficient to provide at least about 0.1 equivalents of cationic ions per Kg of composition and maintains a viscosity of the composition at its initial value after storage for 4 weeks at 49° C.
    Type: Application
    Filed: July 20, 2004
    Publication date: January 26, 2006
    Inventors: Shimei Fan, Esther Kim, Todd Kruse, Tirucherai Vasudevan
  • Publication number: 20060019846
    Abstract: Compositions used for cleansing hair and skin based on the combination of a sulfosuccinate surfactant and an amphoteric surfactant are described that are very mild but do not compromise in-use properties and economy. A route to solve the intrinsic instability of such aqueous compositions in storage has been developed based on the use of sulfosuccinic acid or a salt of sulfosuccinic acid present in an amount of at least about 4% based on the weight of the sulfosuccinate surfactant.
    Type: Application
    Filed: July 20, 2004
    Publication date: January 26, 2006
    Inventors: Shimei Fan, Esther Kim, Todd Kruse, Tirucherai Vasudevan
  • Publication number: 20060019858
    Abstract: Compositions used for cleansing hair and skin based on the combination of an ethoxy sulfosuccinate surfactant and an amphoteric surfactant are described that are very mild but do not compromise in-use properties and economy. It has been found desirable to utilize a mixture of a Mid-Chain alkyl ethoxy sulfosuccinate and a Long-Chain alkyl ethoxy sulfosuccinate wherein the Long-Chain component is present in the composition at a level from about 0.1% to about 6% based on the total weight of the Mid-Chain component.
    Type: Application
    Filed: July 20, 2004
    Publication date: January 26, 2006
    Inventors: Todd Kruse, Shimei Fan, Esther Kim, Tirucherai Vasudevan
  • Patent number: 6395264
    Abstract: An aqueous non-aerosol hair styling composition having 55% or less VOC content, said composition comprising (i) a water soluble or dispersable fixative polymer of about 10 to about 1000 Kilo Daltons and in an amount ranging from 1% to 40% by weight of the composition; (ii) a neutralizing agent in an amount ranging from 0.1 to 10% by weight and selected from the group consisting of 2-amino, 2-methyl, 1-propanol, dimethyl stearamine, sodium hydroxide, and potassium hydroxide; (iii) a surfactant in an amount ranging from 0.01% to 5% by weight and selected from the group consisting of sodium dioctyl sulfo succinate, sodium dodecyl sulfate, cocoamidopropyl betaine, and sodium laureth sulfate; (iv) a salt ranging from 0.01% to 10% by weight and selected from the group consisting of sodium benzoate, and magnesium acetate; (v) an alcohol ranging from 10% to 90% by weight; and (vi) water ranging from 10% to 90% by weight.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: May 28, 2002
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Natalia Nekludoff, Diane Dabkowski, Tirucherai Vasudevan
  • Publication number: 20020028187
    Abstract: An aqueous or hydroalcoholic, aerosol or non-aerosol hair styling aid or mousse composition containing a water soluble or dispersable fixative polymer in an amount from 1% to 40% by weight of the composition, a neutralizing agent in an amount from 0.1 to 10 wt %, a hydrocarbon based surfactant in an amount from 0.01% to 5% by weight, a salt from 0.01% to 10% by weight, alcohol from 10% to 90% by weight and water from 10% to 90% by weight of the composition. Additionally, aerosol compositions contain a liquified propellant gas from 5% to 60% by weight of the composition.
    Type: Application
    Filed: May 7, 1999
    Publication date: March 7, 2002
    Inventors: NATALIA NEKLUDOFF, DIANE DABKOWSKI, TIRUCHERAI VASUDEVAN
  • Patent number: 6290943
    Abstract: W1-O-W2 emulsions are disclosed in which the W1/O emulsion comprises an internal aqueous phase containing a benefit agent and an oil phase surrounding it, and, around this is found an external isotropic aqueous phase. It is critical that the external surfactant phase not comprise an amido containing anionic. It is also critical that oil be not greater than 50% unsaturated and not be a volatile silicone.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: September 18, 2001
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Mark Stephen Naser, Tirucherai Vasudevan
  • Patent number: 6235298
    Abstract: W1-O-W2 emulsions are disclosed in which the W1/O emulsion comprises an internal aqueous phase containing optional benefit agent and an oil phase surrounding it, and, around this is found an external isotropic aqueous phase comprising surfactant system and specific thickeners. Selection of surfactant system and thickener is critical to the multiple emulsion composition not phase separating.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: May 22, 2001
    Assignee: Unilever Home & Personal Care USA
    Inventors: Mark Stephen Naser, Tirucherai Vasudevan, Henri Louis Rosano, Francois Gerard Gandolfo, Kanouni Mouhcine