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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.:

US 6025504 B1

PDFFull Text
Date of Patent:
Feb. 15, 2000

Filed:

Apr. 22, 1999

Method for preparing glycerol carbonate

Applicant:
Inventors:

Sylvain Claude, Paris, FR;

Zephirin Mouloungui, Toulouse, FR;

Jeong-Woo Yoo, Toulouse, FR;

Antoine Gaset, Toulouse, FR;

Assignee:

Organisation Nationale Interprofessionnelle des Oleagineux (O.N.I.D.OL.), Paris, FR;

Attorney:

Young & Thompson

Primary Examiner:

Bernard Dentz

Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549229 ;
Abstract

The invention concerns a method for preparing glycerol carbonate. This method consists of making urea and glycerol react at a temperature substantially between 90.degree. C. and 220.degree. C. in the presence of a catalyst bearing Lewis acid sites, in particular metallic or organometallic salts or supported metallic compounds. The invention enables glycerol carbonate to be obtained, by a catalytic carbamoylation/carbonation reaction, in a highly pure state under economic conditions.

Find Patent Forward Citations

Claude, Sylvain. (2000). Method for preparing glycerol carbonate (U.S. Patent No. 6025504). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6025504

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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