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. 11, 2025
Filed:
Jul. 30, 2020
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Linfeng Chen, Missouri City, TX (US);
David M. Pearson, Lake Jackson, TX (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/64 (2006.01); C08F 4/619 (2006.01); C08F 4/6192 (2006.01); C08F 4/659 (2006.01); C08F 10/02 (2006.01);
U.S. Cl.
CPC ...
C08F 4/6192 (2013.01); C08F 4/61912 (2013.01); C08F 10/02 (2013.01);
Abstract
Processes of polymerizing olefin monomers and catalyst systems. The catalyst systems include a non-hydrogen-generating post-metallocene procatalyst; a co-catalyst; and a hydrogenation procatalyst having the formula CpTiXTiCpor CpTiX, in which each Cp is cyclopentadienyl substituted with at least one (C-C)alkyl; each X is independently monoanionic or neutral, wherein each X is independently (C-C)hydrocarbon, (C-C)heterohydrocarbon, (C-C)hydrocarbyl, (C-C)heterohydrocarbyl, or a halogen atom; and n is 1 or 2.