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:
May. 23, 2006
Filed:
Mar. 07, 2003
Vidyanatha A. Prasad, Leawood, KS (US);
Robert D. Ingalls, Portage, MI (US);
Stephen C. Slahck, Independence, MO (US);
Christopher M. Tusa, Raymore, MO (US);
Vidyanatha A. Prasad, Leawood, KS (US);
Robert D. Ingalls, Portage, MI (US);
Stephen C. Slahck, Independence, MO (US);
Christopher M. Tusa, Raymore, MO (US);
Bayer Cropscience LP, Research Triangle Park, NC (US);
Abstract
The invention relates to a method of preparing O,O-dialkyl S-[2-(alkylthio)alkyl] phosphorodithioates by treating O,O-dialkyl dithiophosphoric acids with a base in the substantial absence of organic solvent to obtain O,O-dialkyl dithiophosphoric acid salts that are in turn treated with thioalcohol derivatives to form the O,O-dialkyl S-[2-(alkylthio)alkyl] phosphorodithioates.