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:
Mar. 17, 1987
Filed:
Oct. 25, 1984
Applicant:
Inventors:
Frederic Mabire, Paris, FR;
Alain Blanc, Paris, FR;
Assignee:
Societe Francaise Hoechst, Puteaux, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548319 ;
Abstract
The invention concerns a process for producing cyclic ureas of the general formula (II): ##STR1## in which R is selected from the group comprising hydrogen atom and C.sub.1 -C.sub.4 alkyl radicals through condensation in aqueous medium at a pH of between 4 and 7 and at a temperature of between 40.degree. and 60.degree. C. of glyoxal with or without excess of a urea having the general formula (I):
Mabire, Frederic. (1987). Process for producing 4,5-dihydroxy-2-imidazolidinones (U.S. Patent No. 4650877). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4650877
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile