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. 04, 2025
Filed:
Jan. 18, 2022
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Reza Khankal, Humble, TX (US);
Joel A. Mutchler, Porter, TX (US);
Bryan M. Garner, Alvin, TX (US);
James E. Hein, Houston, TX (US);
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Abstract
A process and system for pre-polymerizing propylene are disclosed. A first catalyst suspension is formed by mixing catalyst particles with a hydrocarbon that is a saturated hydrocarbon or propylene. Various other catalyst components are added to the first catalyst suspension, and the first catalyst suspension is then pre-polymerized under pre-polymerization conditions to form a pre-polymerized catalyst suspension that is introduced to a polymerization reactor or a storage tank. The saturated hydrocarbon can be propane, mixed butanes, or mixture thereof.