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:
Jan. 02, 2024
Filed:
May. 23, 2019
Dow Global Technologies Llc, Midland, MI (US);
Mingzhe Yu, Midland, MI (US);
David Gordon Barton, Midland, MI (US);
Kurt F. Hirsekorn, Sugar Land, TX (US);
Sadeka Onam, Midland, MI (US);
Peter N. Nickias, Midland, MI (US);
Andrew T. Heitsch, Angleton, TX (US);
Thomas H. Peterson, Midland, MI (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A heterogeneous procatalyst includes a titanium species, a magnesium chloride component, and a chlorinating agent having a structure A(Cl)x(R)3-, where A is aluminum or boron, Ris a (C-C) hydrocarbyl, and x is 1, 2, or 3. The magnesium chloride component may be thermally treated at a temperature greater than 100 C for at least 30 minutes before or after introduction of the chlorinating agent and titanium species to the heterogeneous procatalyst. The heterogeneous procatalyst having the thermally treated magnesium chloride exhibits improved average molecular weight capability. Processes for producing the heterogeneous procatalyst and processes for producing ethylene-based polymers utilizing the heterogeneous procatalyst are also disclosed.