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:
Aug. 20, 2013
Filed:
Sep. 30, 2009
Applicants:
Vladimir Kysilka, Brno, CS;
Jiri Kopenec, Prague, CS;
Jiri Krepelka, Kralupy nad Vltavou, CS;
Inventors:
Assignee:
Agra Group, A.S., Strelske Hostice, CZ;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a process for preparing N-(hydrocarbyl)phosphoric or thiophosphoric triamides with substantially improved yields and purity. Two equivalents of hydrocarbylamine are used in the reaction with phosphoryl or thiophosphoryl chloride and then with ammonia in an aromatic solvent. The invention further relates to N-(hydrocarbyl)phosphopric or thiophosphoric triamides having the purity of at least 98% wherein R is a hydrocarbyl group and X is O or S.(RNH)(NH)P=X   (I).