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:
Dec. 03, 2002
Filed:
Oct. 27, 1997
Applicant:
Inventors:
Mahmood Sabahi, Baton Rouge, LA (US);
Hassan Y. Elnagar, Baton Rouge, LA (US);
Robert L. Davis, Baton Rouge, LA (US);
Assignee:
Albemarle Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 1/704 ; C07C 2/114 ; C07C 1/720 ; C07C 1/716 ;
U.S. Cl.
CPC ...
C07C 1/704 ; C07C 2/114 ; C07C 1/720 ; C07C 1/716 ;
Abstract
Aromatic substrates are Ar-brominated in high yield and selectivity by reacting the substrate with a brominating agent in the presence of at least about 0.19 gram per mmol of substrate of a zeolite catalyst which has an absorbed water content of no greater than about 7.5 weight percent.