Patents by Inventor Hossein M. TAVASSOLI-KAFRANI

Hossein M. TAVASSOLI-KAFRANI 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).

  • 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
  • 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