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:
Oct. 22, 2013
Filed:
Apr. 29, 2009
Didier Bourissou, Plaisance du Touch, FR;
Blanca Martin-vaca, Toulouse, FR;
Aurelie Alba, Auch, FR;
Roland Cherif-cheikh, Castelldefels, ES;
Anne-paula DE Sousa Delgado, Molins de Rei, ES;
Didier Bourissou, Plaisance du Touch, FR;
Blanca Martin-Vaca, Toulouse, FR;
Aurelie Alba, Auch, FR;
Roland Cherif-Cheikh, Castelldefels, ES;
Anne-Paula De Sousa Delgado, Molins de Rei, ES;
Ipsen Pharma S.A.S., Boulogne-Billancourt, FR;
Abstract
The present invention relates to the use of a system composed of a base and of a sulphonamide, as a catalyst for the ring-opening (co)polymerization of lactones. The present invention also relates to novel sulphonamides and to a process for the ring-opening (co)polymerization of lactones comprising the use of sulphonamides in combination with a base as a catalytic system.