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. 02, 2002
Filed:
Aug. 20, 1999
Applicant:
Inventors:
Clarence D. Chang, Princeton, NJ (US);
Zhaozhong Jiang, Thorofare, NJ (US);
Rene B. LaPierre, Medford, NJ (US);
Suzanne E. Schramm, Glen Mills, PA (US);
Hye Kyung Cho Timken, Woodbury, NJ (US);
Assignee:
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 6/996 ;
U.S. Cl.
CPC ...
C07C 6/996 ;
Abstract
A method is provided for co-producing dialkyl carbonate and alkanediol by reacting alkylene carbonate with alkanol in the presence of a zeolite catalyst which contains alkali metal, alkaline earth metal, or a combination thereof present in excess of a stoichiometric amount.