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. 12, 1990
Filed:
Apr. 28, 1989
Applicant:
Inventor:
Gregory L Warner, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568804 ; 568790 ; 568794 ; 502159 ;
Abstract
A method is provided for ortho-alkylating phenol by passing a mixture of phenol and methanol through a heated magnesium oxide catalyst. The magnesium oxide catalyst is made by calcining magnesium carbonate and thereafter further heating the calcined product in the presence of steam.