The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 18, 2019
Filed:
Dec. 01, 2017
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Michael P. Lanci, Flemington, NJ (US);
Joshua W. Allen, Branchburg, NJ (US);
Jarid M. Metz, Doylestown, PA (US);
Victor DeFlorio, Newton, NJ (US);
Jihad M. Dakka, Whitehouse Station, NJ (US);
Bryan A. Patel, Jersey City, NJ (US);
Michael Salciccioli, Houston, TX (US);
Michael W. Weber, Hosuton, TX (US);
Stephen Zushma, Clinton, NJ (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
Abstract
A process for selective oxidation of dimethyl-1,1'-biphenyl to form methyl-1,1′-biphenyl mono-carboxylic acid(s), comprising contacting a solution of dimethyl-1,1′-biphenyl in acetic acid solvent in the presence of a Co(II) acetate catalyst and air, and optionally adding a co-solvent, or adding sodium or potassium acetate, and oxidizing the dimethyl-1,1′-biphenyl under time and temperature conditions sufficient to form one or more methyl-1,1′-biphenyl mono-carboxylic acid(s). The mono-carboxylic acids are advantageously isolated and esterified to form biphenyl mono-esters for use as plasticizers.