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. 06, 1977
Filed:
Sep. 29, 1975
Applicant:
Inventors:
Heimo J Langer, Columbus, OH (US);
Kenneth R Robinson, Worthington, OH (US);
Peter E Throckmorton, Worthington, OH (US);
Assignee:
Ashland Oil, Inc., Ashland, KY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ; 2605 / ;
Abstract
Unsymmetrical dimethyl hydrazine is prepared by a process wherein aqueous 1,1-dimethylurea is initially reacted with a hypochlorite salt whereupon the resultant intermediate essentially in form of a N-chloro derivative of said urea is rearranged in accordance with the Hofmann reaction to yield the desired substituted hydrazine.