Patents by Inventor Rashmi Chamsarkar

Rashmi Chamsarkar 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).

  • Polyurethanes made with copper catalysts
    Patent number: 9718915
    Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a copper catalyst that contains at least one copper atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: August 1, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Richard Keaton, Peter M. Margl, Duane R. Romer, Nathan Wilmot, Rajat Duggal, Rashmi Chamsarkar
  • Polyurethanes made using zinc catalysts
    Patent number: 9518145
    Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a zinc catalyst that contains at least one zinc atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: December 13, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Richard Keaton, Peter Margl, Duane Romer, Nathan Wilmot, Rajat Duggal, Rashmi Chamsarkar
  • POLYURETHANES MADE USING ZINC CATALYSTS
    Publication number: 20150376326
    Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a zinc catalyst that contains at least one zinc atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site.
    Type: Application
    Filed: September 9, 2015
    Publication date: December 31, 2015
    Inventors: Richard Keaton, Peter Margl, Duane Romer, Nathan Wilmot, Rajat Duggal, Rashmi Chamsarkar
  • Polyurethanes made using zinc catalysts
    Patent number: 9156935
    Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a zinc catalyst that contains at least one zinc atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: October 13, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Richard J. Keaton, Peter M. Margl, Duane R. Romer, Nathan Wilmot, Rajat Duggal, Rashmi Chamsarkar
  • Polyurethanes Made with Copper Catalysts
    Publication number: 20150246993
    Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a copper catalyst that contains at least one copper atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site.
    Type: Application
    Filed: May 12, 2015
    Publication date: September 3, 2015
    Inventors: Richard Keaton, Peter M. Margl, Duane R. Romer, Nathan Wilmot, Rajat Duggal, Rashmi Chamsarkar
  • Polyurethanes made with copper catalysts
    Patent number: 9035012
    Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a copper catalyst that contains at least one copper atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: May 19, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Richard Keaton, Peter M. Margl, Duane R. Romer, Nathan Wilmot, Rajat Duggal, Rashmi Chamsarkar
  • POLYURETHANES MADE USING ZINC CATALYSTS
    Publication number: 20130225781
    Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a zinc catalyst that contains at least one zinc atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site.
    Type: Application
    Filed: July 5, 2011
    Publication date: August 29, 2013
    Inventors: Richard J. Keaton, Peter M. Margl, Duane R. Romer, Nathan Wilmot, Rajat Duggal, Rashmi Chamsarkar
  • Polyurethanes Made with Copper Catalysts
    Publication number: 20130102694
    Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a copper catalyst that contains at least one copper atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site.
    Type: Application
    Filed: July 5, 2011
    Publication date: April 25, 2013
    Inventors: Richard Keaton, Peter M. Margl, Duane R. Romer, Nathan Wilmot, Rajat Duggal, Rashmi Chamsarkar