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:
Feb. 27, 2024
Filed:
Jun. 01, 2023
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Max P. McDaniel, Bartlesville, OK (US);
Eric D. Schwerdtfeger, Bartlesville, OK (US);
Qing Yang, Bartlesville, OK (US);
Carlos A. Cruz, Kingwood, TX (US);
Jinping J. Zhou, Bartlesville, OK (US);
Anand Ramanathan, Bartlesville, OK (US);
Kathy S. Clear, Bartlesville, OK (US);
Zhihui Gu, Bellarie, TX (US);
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Abstract
Fluorided silica-coated alumina activator-supports have a bulk density from 0.15 to g/mL, a total pore volume from 0.85 to 2 mL/g, a BET surface area from 200 to 500 m/g, an average pore diameter from 10 to 25 nm, and from 80 to 99% of pore volume in pores with diameters of greater than 6 nm. Methods of making the fluorided silica-coated alumina activator-supports and using the fluorided silica-coated aluminas in catalyst compositions and olefin polymerization processes also are described. Representative ethylene-based polymers produced using the compositions and processes have a melt index of 0.1 to 10 g/10 min and a density of 0.91 to 0.96 g/cm, and contain from 70 to 270 ppm solid oxide and from 2 to 18 ppm fluorine.