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:
Sep. 15, 2015
Filed:
Nov. 25, 2014
Applicants:
Total Research & Technology Feluy, Seneffe (Feluy), BE;
Centre National DE LA Recherche Scientifique (Cnrs), Paris, FR;
Inventors:
Jean-Francois Carpentier, Acigne, FR;
Yann Sarazin, Rennes, FR;
Valentin Poirier, Rennes, FR;
Marion Helou, Brussels, BE;
Assignees:
TOTAL RESEARCH & TECHNOLOGY FELUY, Seneffe (Feluy), BE;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/84 (2006.01); C08G 63/85 (2006.01); C08G 63/08 (2006.01); C08G 64/16 (2006.01); C08G 63/83 (2006.01); C08G 63/82 (2006.01); C08G 64/30 (2006.01);
U.S. Cl.
CPC ...
C08G 63/85 (2013.01); C08G 63/08 (2013.01); C08G 63/823 (2013.01); C08G 63/83 (2013.01); C08G 64/1608 (2013.01); C08G 64/30 (2013.01);
Abstract
The present invention discloses new catalyst systems based on complexes of divalent metals supported by chelating phenoxy ligands for immortal ring-opening polymerization of cyclic esters and cyclic carbonates.