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:
Apr. 20, 1982
Filed:
May. 26, 1981
Applicant:
Inventor:
Stephen E Jacobson, Morristown, NJ (US);
Assignee:
The Halcon SD Group, Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
2603402 ;
Abstract
A process for the preparation of alkylene carbonates, particularly ethylene carbonate, by the reaction of the corresponding olefins with carbon dioxide in the presence of iodine or an iodide compound and an oxide or a weak acid salt of thallium (III). The thallium is reduced to the T1(I) form which may be oxidized back to the T1(III) form for reuse. Gold(III) oxide is also effective.