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:
Dec. 11, 2018
Filed:
Jun. 29, 2017
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
John R. Hagadorn, Houston, TX (US);
Jo Ann M. Canich, Houston, TX (US);
Alexander Z. Voskoboynikov, Moscow, RU;
Pavel S. Kulyabin, Moscow, RU;
Georgy P. Goryunov, Moscow, RU;
Dmitry V. Uborsky, Moscow, RU;
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/62 (2006.01); C08F 4/76 (2006.01); C08F 10/06 (2006.01); C08F 297/08 (2006.01); C08F 10/02 (2006.01); C08F 4/64 (2006.01); C08F 4/659 (2006.01);
U.S. Cl.
CPC ...
C08F 4/62141 (2013.01); C08F 4/64144 (2013.01); C08F 4/64148 (2013.01); C08F 4/65912 (2013.01); C08F 4/76 (2013.01); C08F 10/02 (2013.01); C08F 10/06 (2013.01); C08F 297/083 (2013.01);
Abstract
Heterocyclic amido transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins, preferably multimodal polyolefins. The heterocyclic amido transition metal complexes are formed by the chelation of a tridentate dianionic heterocyclic amido ligand to a group 3, 4, or 5 transition metal, where the tridentate ligand coordinates to the metal forming a five-membered ring and an eight-membered ring.