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:
Sep. 09, 2008
Filed:
Mar. 31, 2004
Applicants:
Michael Zeitler, Alfter, DE;
Nils Kottner, Greiz, DE;
Manfred Bergfeld, Erlenbach-Mechenhard, DE;
Inventors:
Assignee:
Thioplast Chemicals GmbH & Co. KG, Greiz, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 319/00 (2006.01); C07C 321/00 (2006.01); C07C 323/00 (2006.01); C07C 381/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing dihydroxyethylene disulfide by reacting mercaptoethanol with oxygen, in which mercaptoethanol is reacted with oxygen or an oxygenous gas in the presence of ammonia and/or amines using copper salts or manganese salts.