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:
Jan. 08, 1980
Filed:
Oct. 20, 1978
Renato Francese, Turin, IT;
Roberto Esposito, Turin, IT;
Rumianca S.p.A., Turin, IT;
Abstract
In the commercial process for preparing chloro-bis(aklylamino)-s-triazines by step-wise replacement of two chlorine atoms of cyanuric chloride with alkylamino groups in which a molar excess of alkylamine is used in the second replacement step, the formation of tris-(alkylamino)-s-triazines is suppressed by submitting the reaction mixture, after the second replacement step is completed, to a pressure not exceeding 400 mm Hg, at a temperature not exceeding about 55.degree. C. and for a period not exceeding about 15 minutes, thereby removing the excess alkylamine from said reaction mixture by volatilization without substantially removing the other components of the reaction mixture.