公开(公告)号：US10301239B2

公开(公告)日：2019-05-28

申请号：US15748149

申请日：2016-07-29

Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA

Inventor： Jonathan M. Curtis ,  Tolibjon S. Omonov ,  Ereddad Kharraz

IPC: C07C29/03 ,  C08G18/36 ,  C07C29/48 ,  C07D303/16 ,  C07C33/02 ,  C11C3/00 ,  C08G18/62 ,  C08G18/76

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.

公开(公告)号：US10189761B2

公开(公告)日：2019-01-29

申请号：US15736999

申请日：2016-06-27

Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA

Inventor： Jonathan M. Curtis ,  Tolibjon S. Omonov ,  Ereddad Kharraz ,  Xiaohua Kong ,  Hossein M. Tavassoli-Kafrani

IPC: C07C29/48 ,  C07C67/31 ,  C08G18/36 ,  C11C3/00 ,  B01J31/02 ,  B01J41/08 ,  C07C29/128 ,  C07C31/20 ,  C11C3/06 ,  C07D301/12 ,  C07C29/132 ,  C07C67/02

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.