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:
Aug. 03, 1982
Filed:
Oct. 02, 1978
Applicant:
Inventors:
Hans-Georg Zengel, Kleinwallstadt, DE;
Manfred Bergfeld, Erlenbach, DE;
Assignee:
Akzona Incorporated, Asheville, NC (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ; 564160 ;
Abstract
Bis-N-chloramides of saturated aliphatic dicarboxylic acids are prepared by chlorinating a saturated aliphatic dicarboxylic diamide, the aliphatic residue of which has 4 to 40 carbon atoms, in an aqueous inorganic acid medium, at a temperature between 0.degree. and 40.degree. C.; the chlorination is advantageously carried out in presence of an inorganic salt.