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:
Jan. 19, 2016
Filed:
Jan. 11, 2012
Gerard Mignani, Lyons, FR;
Marc Lemaire, Villeurbanne, FR;
Eric Da Silva, Lyons, FR;
Wissam Dayoub, Villeurbanne, FR;
Yann Raoul, Crezancy, FR;
Gerard Mignani, Lyons, FR;
Marc Lemaire, Villeurbanne, FR;
Eric Da Silva, Lyons, FR;
Wissam Dayoub, Villeurbanne, FR;
Yann Raoul, Crezancy, FR;
RHODIA OPERATIONS, Aubervilliers, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), Paris, FR;
UNIVERSITE CLAUDE BERNARD LYON 1, Villeurbanne, FR;
FIDOP (FONDS DE DEVELOPPEMENT DES FILIERES DES OLEAGINEUX ET DES PROTEAGINEUX), Paris, FR;
Abstract
Disclosed is a method for preparing, by transcarbonation, a compound of formula (I), including reacting a polyol of formula (II) with an alkyl carbonate or an alkylene carbonate in the presence of a catalytic system consisting of a catalytic entity selected from among the rare earth oxides or the mixtures thereof, and optionally an inert substrate.