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:
Oct. 03, 1989
Filed:
Dec. 12, 1984
Applicant:
Inventor:
John A Wojtowicz, Cheshire, CT (US);
Assignee:
Olin Corporation, Cheshire, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
562818 ;
Abstract
Disclosed is a process for producing methylphosphonic dichloride comprising reacting dimethyl methylphosphonate with a chlorinating agent selected from the group consisting of thionyl chloride and phosgene in the presence of a catalytic amount of an inorganic halide selected from the group consisting of ammonium halide and metallic halides where the metal cation is selected from the metals of Groups IA, IIA, IIIB, IVB, VB, VIB, VIIB, VIIIB, IB, IIB and IIIA of the Periodic Table.