Patents by Inventor Amit Dharia

Amit Dharia 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).

  • NUCLEATING AGENT FOR POLYETHYLENES
    Publication number: 20120101209
    Abstract: The invention relates to nucleation agents for polyethylenes wherein the nucleating agent is composed of one or more finely divided inorganic materials of halloysite that are dispersed throughout the polyethylene to increase the crystallization rate such that the polyethylenes can be more easily extruded, molded with a much shorter cycle time or thermoformed into intricate parts. The most preferred agent is halloysite nanotubular clay.
    Type: Application
    Filed: October 21, 2011
    Publication date: April 26, 2012
    Inventors: Yash P. Khanna, Amit Dharia, Andre M. Zeitoun
  • Metal hydroxide derivatives containing chemically bound organophosphorus or polyphosphate species as flame retardants
    Patent number: 7550099
    Abstract: Novel metal hydroxide derivatives which chemically combine positively charged metal hydroxide layers with negatively charged phosphorus-containing species, which can be either anionic organophosphorus materials or phosphorus-containing polymeric anions, are described. The metal hydroxide derivatives are useful flame retardants through their ability to be completely dispersed and their formation of a crust or char to prevent flame propagation.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: June 23, 2009
    Assignee: University of North Texas
    Inventors: Paul S. Braterman, Nandika D'Souza, Amit Dharia
  • Novel metal hydroxide derivatives containing chemically bound organophosphorus or polyphosphate species as flame retardants
    Publication number: 20060219991
    Abstract: Novel metal hydroxide derivatives which chemically combine positively charged metal hydroxide layers with negatively charged phosphorus-containing species, which can be either anionic organophosphorus materials or phosphorus-containing polymeric anions, are described. The metal hydroxide derivatives are useful flame retardants through their ability to be completely dispersed and their formation of a crust or char to prevent flame propagation.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 5, 2006
    Applicant: University of North Texas
    Inventors: Paul Braterman, Nandika D'Souza, Amit Dharia