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:
May. 28, 1991
Filed:
Mar. 12, 1990
Valerie Bagrel, Fontenay-aux-Roses, FR;
Jacques Garapon, Lyons, FR;
Remi Touet, Saint Egreve, FR;
Catherine Huet, Chalon sur Saone, FR;
Bernard Damin, Oullins, FR;
Institut Francais du Petrole, Rueil Malmaison, FR;
L'Air Liquide Societe Anonyme pour L'Etude et L'Exploitation des, , US;
ELF France, Courbevoie, FR;
Abstract
A process for condensing at least one aliphatic epoxide having at least 8 atoms of carbon in its molecule on at least one cyclic anhydride of a dicarboxylic acid in the presence of a catalyst consisting of at least one titanium complex of general formula (I) Ti(OR).sub.2 (L).sub.2 in which each R group independently represents one hydrocarbon group with 1 to 10 atoms of carbon and each L group represents a ligand of the diketonic beta type or of the keto-ester beta.