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:
Mar. 22, 2016
Filed:
Feb. 08, 2012
Applicants:
Tobias Ritter, Cambridge, MA (US);
Jean B. Raynaud, Perigueux, FR;
Jessica Yung Wu, Washington, DC (US);
Inventors:
Tobias Ritter, Cambridge, MA (US);
Jean B. Raynaud, Perigueux, FR;
Jessica Yung Wu, Washington, DC (US);
Assignee:
President and Fellows of Harvard College, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 136/08 (2006.01); C08F 36/08 (2006.01); C07F 15/02 (2006.01); C07C 251/02 (2006.01); C08F 4/80 (2006.01); C08F 4/70 (2006.01); B01J 31/18 (2006.01);
U.S. Cl.
CPC ...
C08F 136/08 (2013.01); C07C 251/02 (2013.01); C07F 15/02 (2013.01); C07F 15/025 (2013.01); C08F 36/08 (2013.01); B01J 31/1815 (2013.01); C08F 4/70 (2013.01); C08F 4/7006 (2013.01); C08F 4/80 (2013.01); C08F 2410/03 (2013.01);
Abstract
Provided are methods of preparing polymers, such as polyisoprene, polybutadiene, polypiperylene, polycyclohexadiene, poly-β-farnesene, or poly-β-myrcene, using iron complexes. Also provided are novel iron complexes, pre-catalysts, intermediates, and ligands useful in the inventive polymerization system.