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. 02, 1999
Filed:
Nov. 07, 1996
Applicant:
Inventors:
Daniel M Wasleski, Blue Springs, MO (US);
Peter E Newallis, Leawood, KS (US);
Dennis E Jackman, Prairie Village, KS (US);
David T Erdman, Koln, DE;
Jeffrey D Macke, Kansas City, MO (US);
Vidyanatha A Prasad, Leawood, KS (US);
Vijay C Desai, Shawnee, KS (US);
Assignee:
Bayer Corporation, Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
558233 ;
Abstract
Disclosed herein is an aqueous process for preparing high yields of methyl dithiocarbazinate by reacting carbon disulfide and hydrazine in an effective ratio, in an aqueous medium to form hydrazinium dithiocarbazinate salt followed by methylating the hydrazinium dithiocarbazinate with methyl bromide.