Patents by Inventor Kavitha Dhandapani

Kavitha Dhandapani 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: 6727218
    Abstract: The present invention relates to a cleaning composition comprising an immiscible liquid system having at least one liquid-liquid interface with an interfacial tension greater than 5 mN/m. The less polar solvent in the system has a carbon chain length of at least 4, or is a silicone with more than 3 SiO units. The composition furthermore comprises from 0.001-20% by weight of a benefit agent such as a fluorescer, a dye transfer inhibitor, a fabric softening agent or an anti redeposition agent. The compositions provide for an improved delivery and efficacy of the benefit agents in e.g. a fabric cleaning process.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: April 27, 2004
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Vijaya Milind Bargaje, Kavitha Dhandapani, Glyn Roberts
  • Patent number: 6706678
    Abstract: The invention relates to a cleaning composition comprising an immiscible liquid system having at least one liquid—liquid interface with an interfacial tension greater than 5 mN/m. The less polar solvent in the system has a carbon chain length of at least 4, preferably greater than 6, or is a silicone with more than 3 SiO units. Typical examples of suitable less polar solvents are hydrocarbons, fluoroethers, polydimethylsiloxanes and fatty acid methyl esters. The more polar liquid in the system is preferably water. The composition is particularly suitable for cleaning soiled fabric, especially to remove particulate soil therefrom.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: March 16, 2004
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Vijaya Milind Bargaje, Vidur Behal, Kavitha Dhandapani, Glyn Roberts
  • Publication number: 20030135934
    Abstract: The present invention relates to a washing machine in which a composition is used comprising at least one liquid-liquid interface, with an interfacial tension of at least 5 mN/m. The washing machine comprises a heatable wash drum, means for storing dispensing and mixing the liquids, means for introducing the liquids into the drum, and means for filtering, separating, distilling and condensing the wash liquor and vapours and recovering the solvents. Use of the machine enables discharge of waste water with only low levels of solvent, and facilities recovering of the solvents.
    Type: Application
    Filed: November 19, 2002
    Publication date: July 24, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Rahul Banerjee, Vijaya Milind Bargaje, Kavitha Dhandapani, Glyn Roberts
  • Publication number: 20030092592
    Abstract: The present invention relates to a cleaning composition comprising an immiscible liquid system having at least one liquid-liquid interface with an interfacial tension greater than 5 mN/m. The less polar solvent in the system has a carbon chain length of at least 4, or is a silicone with more than 3 SiO units. The composition furthermore comprises from 0.001-20% by weight of a benefit agent such as a fluorescer, a dye transfer inhibitor, a fabric softening agent or an anti redeposition agent. The compositions provide for an improved delivery and efficacy of the benefit agents in e.g. a fabric cleaning process.
    Type: Application
    Filed: October 10, 2002
    Publication date: May 15, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Vijaya Milind Bargaje, Kavitha Dhandapani, Glyn Roberts
  • Publication number: 20030078181
    Abstract: The invention relates to a cleaning composition comprising an immiscible liquid system having at least one liquid-liquid interface with an interfacial tension greater than 5 mN/m. The less polar solvent in the system has a carbon chain length of at least 4, preferably greater than 6, or is a silicone with more than 3 SiO units. Typical examples of suitable less polar solvents are hydrocarbons, fluoroethers, polydimethylsiloxanes and fatty acid methyl esters. The more polar liquid in the system is preferably water. The composition is particularly suitable for cleaning soiled fabric, especially to remove particulate soil therefrom.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 24, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Vijaya Milind Bargaje, Vidur Behal, Kavitha Dhandapani, Glyn Roberts