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:
Nov. 27, 2018
Filed:
Aug. 01, 2017
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
David A. Cano, Houston, TX (US);
Crisita Carmen H. Atienza, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
Phosphasalen transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins. The transition metal complexes are represented by the formula: wherein M is a Group 4 metal; each of Xand Xis a univalent group, such as halogen or benzyl; each of R, R, R, R, R, R, R, R, R, R, R, and Ris, independently, hydrogen, a substituted or unsubstituted C-Chydrocarbyl radical, etc.; and Ris a divalent C-Chydrocarbyl radical or divalent substituted C-Chydrocarbyl radical comprising a portion that comprises a linking backbone comprising from 2 to 18 carbon atoms linking Nand N.