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. 05, 2017
Filed:
Mar. 30, 2010
Applicants:
Robin Don Rogers, Belfast Antrim, GB;
John Holbrey, Belfast Antrim, GB;
Hector Rodriguez, Belfast Antrim, GB;
Inventors:
Robin Don Rogers, Belfast Antrim, GB;
John Holbrey, Belfast Antrim, GB;
Hector Rodriguez, Belfast Antrim, GB;
Assignee:
Petroliam Nasional Berhad, , MY;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 233/42 (2006.01);
U.S. Cl.
CPC ...
C07D 233/42 (2013.01); Y02P 20/582 (2015.11);
Abstract
The present invention is a novel process for the preparation of chalcogenone compounds by conversion of ionic liquids and salts comprising nitrogen-containing heterocyclic cations and basic anions to the corresponding nitrogen-containing heterocyclic chalcogenones by reaction with elemental chalcogens.