Patents by Inventor Nima N. Nikbin

Nima N. Nikbin 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).

  • Polycarbonate based polyols
    Patent number: 11174348
    Abstract: A method of manufacturing a poly(ether-carbonate) polyol comprises a polymerization stage that includes polymerizing carbon dioxide and at least one alkylene oxide, with a starter, in the presence of a double metal cyanide polymerization catalyst and a catalyst promoter that is devoid of halide anions and cyanide. The catalyst promoter is separate from the double metal cyanide polymerization catalyst.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: November 16, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Nima N. Nikbin, David A. Babb
  • Alkoxylation process using tubular reactor
    Patent number: 10920013
    Abstract: Alkylene oxides are polymerized in a tubular reactor. The alkylene oxide is continuously introduced into the tubular reactor through multiple introduction points located along the length of the tubular reactor. Monomer flow rates are increased along the length of the reactor to maintain a nearly constant concentration of unreacted alkylene oxide.
    Type: Grant
    Filed: September 17, 2017
    Date of Patent: February 16, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Nima N. Nikbin, Carlos M. Villa, Maria Jose Nieves Remacha, Irfan Khan, William H. Heath, John G. Pendergast, Jr., Matthias Schaefer, Anna Forlin
  • POLYCARBONATE BASED POLYOLS
    Publication number: 20190256652
    Abstract: A method of manufacturing a poly(ether-carbonate) polyol comprises a polymerization stage that includes polymerizing carbon dioxide and at least one alkylene oxide, with a starter, in the presence of a double metal cyanide polymerization catalyst and a catalyst promoter that is devoid of halide anions and cyanide. The catalyst promoter is separate from the double metal cyanide polymerization catalyst.
    Type: Application
    Filed: November 9, 2017
    Publication date: August 22, 2019
    Inventors: Nima N. Nikbin, David A. Babb
  • ALKOXYLATION PROCESS USING TUBULAR REACTOR
    Publication number: 20190202983
    Abstract: Alkylene oxides are polymerized in a tubular reactor. The alkylene oxide is continuously introduced into the tubular reactor through multiple introduction points located along the length of the tubular reactor. Monomer flow rates are increased along the length of the reactor to maintain a nearly constant concentration of unreacted alkylene oxide.
    Type: Application
    Filed: September 17, 2017
    Publication date: July 4, 2019
    Inventors: Nima N. Nikbin, Carlos M. Villa, Maria Jose Nieves Remacha, Irfan Khan, William H. Heath, John G. Pendergast, Jr., Matthias Schaefer, Anna Forlin