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:
Jul. 01, 2025
Filed:
Nov. 18, 2020
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Matthew W. Holtcamp, Huffman, TX (US);
Matthew S. Bedoya, Humble, TX (US);
Timothy M. Boller, Houston, TX (US);
Hasnain Rangwalla, Katy, TX (US);
David F. Sanders, Beaumont, TX (US);
Ching-Tai Lue, Sugar Land, TX (US);
Dongming Li, Houston, TX (US);
Adriana S. Silva, Houston, TX (US);
Ru Xie, Baytown, TX (US);
Joseph A. Moebus, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
A polyethylene comprising of ethylene derived units and 0.5 wt % to 10 wt % Cto Cα-olefin derived units may be synthesized using a mixed catalyst that comprises rac-dimethylsilylbis(tetrahydroindenyl)zirconium dichloride and a zirconium co-catalyst in a mole ratio of 50:50 to 90:10, and wherein the zirconium co-catalyst is a poor comonomer incorporator as compared to the rac-dimethylsilylbis(tetrahydroindenyl)zirconium dichloride catalyst. Such a polyethylene may have a density of 0.91 g/cmto 0.93 g/cm, an Ivalue of 0.5 g/10 min to 2 g/10 min, an Ivalue of 25 g/10 min to 75 g/10 min, an I/Iratio of 25 to 75, a molar reversed-co-monomer index (RCI,m) of 30 to 180, a phase angle equal or lower than 70° at complex modulus G* of 10,000 Pa, a Θof 1.5 radians to −1.5 radians, and a low density population of 50% and 70% by weight of the polyethylene.