Patents by Inventor Zubaida S. Khan

Zubaida S. Khan 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).

  • Two-part hair dye compositions containing polyether polyurethanes and conditiong agents
    Publication number: 20030140430
    Abstract: The present invention describes a two-part oxidative hair dye composition which comprises in one or both component parts at least one polyether polyurethane in combination with at least one cationic conditioning agent. The two component parts of the composition comprise a dye component composition, which includes primary intermediates and couplers, and a developing component composition, which includes an oxidizing agent, such as hydrogen peroxide. It has surprisingly been found by the present inventors that nonionic polyether polyurethane polymers and cationic conditioning agents contained in the oxidative hair dye compositions of the present invention impart and significantly enhance additional conditioning and rheological benefits to the hair. Other components commonly used in oxidative hair dye products can be added to one or both component parts of the compositions of the present invention.
    Type: Application
    Filed: December 13, 2002
    Publication date: July 31, 2003
    Inventors: Stephen Casperson, Bryan Murphy, Zubaida S. Khan, Stanley Pohl
  • Two-part hair dye compositions containing polyether polyurethanes and conditioning agents
    Patent number: 6156076
    Abstract: The present invention describes a two-part oxidative hair dye composition which comprises in one or both component parts at least one polyether polyurethane in combination with at least one cationic conditioning agent. The two component parts of the composition comprise a dye component composition, which includes primary intermediates and couplers, and a developing component composition, which includes an oxidizing agent, such as hydrogen peroxide. It has surprisingly been found by the present inventors that nonionic polyether polyurethane polymers and cationic conditioning agents contained in the oxidative hair dye compositions of the present invention impart and significantly enhance additional conditioning and rheological benefits to the hair. Other components commonly used in oxidative hair dye products can be added to one or both component parts of the compositions of the present invention.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: December 5, 2000
    Assignee: Bristol-Myers Squibb Company
    Inventors: Stephen Casperson, Bryan Murphy, Zubaida S. Khan, Stanley Pohl