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. 23, 1987
Filed:
Nov. 12, 1985
Applicant:
Inventors:
Pauls Davis, Gibraltar, MI (US);
Donald C Mente, Grosse Ile, MI (US);
Assignee:
BASF Corporation, Wyandotte, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564437 ; 564112 ; 564411 ; 564413 ; 564416 ; 564441 ; 564463 ; 564494 ; 564497 ;
Abstract
A process for eliminating N-nitrosamines, particularly N,N-dialkyl-N-nitrosamines and N-alkyl-N-aryl-N-nitrosamines from N-nitrosamine containing compositions through the addition of organic carboxylic acid halides. The process eliminates N-nitroso compounds without rearrangement to C-nitroso compounds.