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:
Feb. 16, 1982
Filed:
Feb. 04, 1980
Earl P Moore, Jr, Hockessin, DE (US);
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A process for the preparation of 2,2'-azobis (2,4-dimethylpentanenitrile) with improved filtering and drying characteristics, said process comprising reacting 2-amino-2,4-dimethylpentanenitrile with a metal hypochlorite in the presence of water, a mixture of quaternary ammonium surface active compounds and ionic bromide wherein the equivalent ratio of ionic bromide to surface active compound is 0.4:1-12.0:1 at a temperature of about -10.degree. C. to about 30.degree. C., and recovering 2,2'-azobis(2,4-dimethylpentanenitrile) from the reaction mixture.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile