Patents by Inventor Tolibjon S. OMONOV

Tolibjon S. OMONOV 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).

  • Synthesis of polyols suitable for castor oil replacement
    Patent number: 10301239
    Abstract: A method for the preparation of polyol from an unsaturated TAG oil that can function similarly to castor oil in certain applications. The method comprises controlled epoxidation of the TAG oil with an acid and an oxidizing agent to obtain a partially epoxidized TAG oil with desired iodine and oxirane values; hydroxylating the partially epoxidized TAG oil using a monoalcohol and a solid acid catalyst to obtain the polyol. The resulting polyols are comprised of a triglyceride structure and hydroxyl values, viscosities, and colors that are similar to castor oil.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 28, 2019
    Inventors: Jonathan M. Curtis, Tolibjon S. Omonov, Ereddad Kharraz
  • Method for polyol synthesis from triacylglyceride oils
    Patent number: 10189761
    Abstract: A method for preparation of polyols from an unsaturated TAG oil that involves first epoxidizing the unsaturated TAG oil; then subjecting the epoxidized TAG oil to transesterification using a diol and/or triol in the presence of a catalyst to produce hydroxyalkyl esters of fatty acid epoxides; and finally hydroxylating the transesterification product using a diol and/or triol and a solid acid catalyst to obtain a polyol with relatively high hydroxyl value and low viscosity.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: January 29, 2019
    Inventors: Jonathan M. Curtis, Tolibjon S. Omonov, Ereddad Kharraz, Xiaohua Kong, Hossein M. Tavassoli-Kafrani
  • SYNTHESIS OF POLYOLS SUITABLE FOR CASTOR OIL REPLACEMENT
    Publication number: 20180222829
    Abstract: A method for the preparation of polyol from an unsaturated TAG oil that can function similarly to castor oil in certain applications. The method comprises controlled epoxidation of the TAG oil with an acid and an oxidizing agent to obtain a partially epoxidized TAG oil with desired iodine and oxirane values; hydroxylating the partially epoxidized TAG oil using a monoalcohol and a solid acid catalyst to obtain the polyol. The resulting polyols are comprised of a triglyceride structure and hydroxyl values, viscosities, and colors that are similar to castor oil.
    Type: Application
    Filed: July 29, 2016
    Publication date: August 9, 2018
    Applicant: The Governors of the University of Alberta
    Inventors: Jonathan M. CURTIS, Tolibjon S. OMONOV, Ereddad KHARRAZ
  • METHOD FOR POLYOL SYNTHESIS FROM TRIACYLGLYCERIDE OILS
    Publication number: 20180170845
    Abstract: A method for preparation of polyols from an unsaturated TAG oil that involves first epoxidizing the unsaturated TAG oil; then subjecting the epoxidized TAG oil to transesterification using a diol and/or triol in the presence of a catalyst to produce hydroxyalkyl esters of fatty acid epoxides; and finally hydroxylating the transesterification product using a diol and/or triol and a solid acid catalyst to obtain a polyol with relatively high hydroxyl value and low viscosity.
    Type: Application
    Filed: June 27, 2016
    Publication date: June 21, 2018
    Inventors: Jonathan M. CURTIS, Tolibjon S. OMONOV, Ereddad KHARRAZ, Xiaohua KONG, Hossein M. TAVASSOLI-KAFRANI