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. 10, 2026
Filed:
May. 26, 2021
Dow Global Technologies Llc, Midland, MI (US);
Bethany M. Neilson, Manvel, TX (US);
Roger L. Kuhlman, Lake Jackson, TX (US);
Rhett A. Baillie, Pearland, TX (US);
John F. Szul, Hurricane, WV (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A method of making an attenuated-light-off post-metallocene catalyst ('attenuated post-metallocene catalyst' or “attenuated P-M catalyst”), the method comprising combining a faster-light-off catalyst with an effective amount of a kinetics modifier compound of formula (A1), (B), or (C): R—C≡C—R(A), (R)C═C═C(R)(B), or (R)(R)C═C(R)(R) (C) as defined herein under effective reaction conditions to give an attenuated post-metallocene catalyst that exhibits an attenuated light-off kinetics profile (relative to that of the faster-light-off catalyst); wherein the faster-light-off catalyst has been made by activating a post-metallocene precatalyst (i.e., an unactivated “coordination entity” or “ligand-metal complex”) of structural formula (I): (D)M(T)(Q)(X)(I) as defined herein; and related methods, compositions and uses.