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:
Jul. 16, 2002
Filed:
Jun. 28, 2000
Applicant:
Inventors:
Jayant S. Lodaya, Akron, OH (US);
Otto W. Maender, Copley, OH (US);
Paul M. Mitchem, Akron, OH (US);
Assignee:
Flexsys America L.P., Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 3/06 ;
U.S. Cl.
CPC ...
C07F 3/06 ;
Abstract
A process for the manufacture of zinc hexasulfide amine complexes comprising reacting zinc, sulfur and a molar excess of amine at an elevated temperature to obtain a reaction mixture comprising zinc hexasulfide amine complexes and excess amine. A first solvent in which the zinc hexasulfide amine complexes are largely not soluble is added to obtain a slurry of the reaction mixture. The zinc hexasulfide amine complexes may be recovered in a subsequent separation process.