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:
Sep. 27, 1977
Filed:
May. 14, 1976
Earl Phillip 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(isobutyronitrile) of improved color which comprises reacting 2-amino-2-methylpropionitrile with a metal hypochlorite, M(OCl).sub.x where M is selected from sodium, potassium or calcium and x is the valence of M, in the presence of water and a mixture of a quaternary ammonium surface active compound with either a nonionic or amphoteric surface active compound, said mixture having an HLB of about 8 to about 35 at a temperature of about -10.degree. C to about 30.degree. C and recovering the self-precipitated 2,2'-azobis(isobutyronitrile) from the reaction mixture.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile