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:
Apr. 17, 2018
Filed:
Dec. 16, 2014
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Jian Yang, Houston, TX (US);
Matthew W. Holtcamp, Huffman, TX (US);
Xiongdong Lian, Shanghai, CN;
Gregory S. Day, Pasadena, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
The invention relates to a novel group bridged metallocene transition metal complexes, wherein the complex includes at least one indenyl ligand substituted at the 4-position with a phenyl group, the 4-phenyl group being preferably substituted at the 3', 4′, and 5′ positions with particular combinations of substituents, particularly wherein the 4′-substituent is a group of the formula (XR′), wherein X is a Group 14-17 heteroatom having an atomic weight of 13 to 79 and R′ is one of a hydrogen atom, halogen atom, a C-Calkyl group, or a C-Caryl group and n is 0, 1, 2, or 3. Catalyst systems including the transition metal complex, polymerization processes using the transition metal complex, and polymers made using the transition metal complex are also described.