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. 17, 1990
Filed:
Nov. 24, 1987
Applicant:
Inventors:
Nickolas J Stepaniuk, Chesterfield, MO (US);
Bruce J Lamb, St. Charles, MO (US);
Assignee:
Mallinckrodt Inc., St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
534565 ; 534579 ;
Abstract
Disclosed is a process for continuous preparation of aromatic diazonium fluoride salts wherein diazotizable aromatic primary amines are continuously diazotized in a reactor containing a plurality of sequential reaction zones, wherein a portion of the diazotization agent is continuously injected into each of the reaction zones.