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:
Apr. 06, 1982
Filed:
Nov. 20, 1980
Applicant:
Inventors:
Dusan J Engel, Des Plaines, IL (US);
Thomas P Malloy, Lake Zurich, IL (US);
Assignee:
UOP Inc., Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568766 ; 568789 ; 568794 ;
Abstract
Mono-tertiary butylhydroquinone may be prepared in a continuous method of operation by reacting hydroquinone with isobutylene in the presence of an acidic alumina catalyst. The alkylation is effected in a reaction medium which comprises an ether, and particularly a polyether such as the dimethyl ether of triethylene glycol.