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:
Sep. 06, 2005
Filed:
Sep. 08, 2003
Applicants:
Larry C. Satek, Fremont, IN (US);
Stephen C. Jevne, Wheaton, IL (US);
Surjit S. Chhatwal, Downers Grove, IL (US);
Inventors:
Larry C. Satek, Fremont, IN (US);
Stephen C. Jevne, Wheaton, IL (US);
Surjit S. Chhatwal, Downers Grove, IL (US);
Assignee:
The University of Southern Mississippi Research Foundation, Hattiesburg, MS (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C002/68 ;
U.S. Cl.
CPC ...
Abstract
Alkylation of metaxylene with isobutylene using a solid active clay catalyst produces 5-tert-butyl-metaxylene with high isomer selectivity with respect to 4-tert-butyl-metaxylene. The process is controlled to extend catalyst life and significantly reduce environmentally unfriendly waste.