Patents by Inventor Joseph Kolawole OGUNJOBI

Joseph Kolawole OGUNJOBI 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).

  • Process for the production of dialkyl terephthalate
    Patent number: 11591283
    Abstract: A process for preparing dialkyl terephalate comprising the following steps:—i) providing furan-2,5-dicarboxylate; ii) esterifying the furan-2,5-dicarboxylate with alcohol to form furan-2,5-carboxylic acid dialkyl ester; iii) reacting the furan-2,5-carboxylic acid dialkyl ester with ethylene under Diels Alder conditions, elevated temperature and pressure and in the presence of a catalyst such that dialkyl terephthalate is produced; wherein the Diels-Alder reaction is free from solvent; wherein the catalyst comprises a clay comprising metal ions and having Lewis acidity.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 28, 2023
    Assignee: CONOPCO, INC.
    Inventors: Simon William Breeden, James Hanley Clark, Thomas James Farmer, Duncan James MacQuarrie, Con Robert McElroy, Joseph Kolawole Ogunjobi, David William Thornthwaite
  • PROCESS FOR THE PRODUCTION OF DIALKYL TEREPHTHALATE
    Publication number: 20210122698
    Abstract: A process for preparing dialkyl terephalate comprising the following steps:—i) providing furan-2,5-dicarboxylate; ii) esterifying the furan-2,5-dicarboxylate with alcohol to form furan-2,5-carboxylic acid dialkyl ester; iii) reacting the furan-2,5-carboxylic acid dialkyl ester with ethylene under Diels Alder conditions, elevated temperature and pressure and in the presence of a catalyst such that dialkyl terephthalate is produced; wherein the Diels-Alder reaction is free from solvent; wherein the catalyst comprises a clay comprising metal ions and having Lewis acidity.
    Type: Application
    Filed: March 28, 2019
    Publication date: April 29, 2021
    Inventors: Simon William BREEDEN, James Hanley CLARK, Thomas James FARMER, Duncan James MACQUARRIE, Con Robert MCELROY, Joseph Kolawole OGUNJOBI, David William THORNTHWAITE