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:
Nov. 25, 2008
Filed:
Feb. 22, 2007
Applicants:
Evert Van Der Heide, Amsterdam, NL;
Gerardus Martinus Maria Van Kessel, Amsterdam, NL;
Timothy Michael Nisbet, Amsterdam, NL;
Garo Garbis Vaporciyan, Houston, TX (US);
Inventors:
Evert Van Der Heide, Amsterdam, NL;
Gerardus Martinus Maria Van Kessel, Amsterdam, NL;
Timothy Michael Nisbet, Amsterdam, NL;
Garo Garbis Vaporciyan, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 317/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An alkylene carbonate is produced by the reaction of an alkylene oxide with carbon dioxide in the presence of a phosphonium compound as catalyst in a process in which The alkylene carbonate thus produced is suitably reacted with an alkanol to produce an alkane diol and a dialkyl carbonate.