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. 02, 1989
Filed:
Mar. 24, 1986
Applicant:
Inventors:
Yves Labat, Pau, FR;
Guy Desgrandchamps, Billere, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568 21 ; 166267 ; 166902 ; 568 26 ;
Abstract
The polysulphide is heated with a substance capable of dissolving elemental sulphur. After cooling, the polysulphide reduced to a lower numbver of S atoms is separated from the substance, which can be recovered. An important use consists in converting the polysulphide to the form of dimethyl disulphide, the solvent used for the dissolution of sulphur deposited in conduits, particularly those used for natural gas.