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:
Aug. 12, 2025
Filed:
Feb. 10, 2021
Dow Global Technologies Llc, Midland, MI (US);
Hien Q. Do, Lake Jackson, TX (US);
Philip P. Fontaine, Lake Jackson, TX (US);
Arkady L. Krasovskiy, Lake Jackson, TX (US);
Liam P. Spencer, Lake Jackson, TX (US);
Kelli A. Ogawa, Midland, MI (US);
Daniel K. Lesniewski, Lake Jackson, TX (US);
Russell W. Anderson, Lake Jackson, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Embodiments are directed to a metal-ligand complex catalyst precursor, (L)(L)X(R)(R), and methods for producing the same from a compound of formula QX(R)(R). Land Lare independently —R—Zor —R—Z. Rand Rare independently selected from a hydrogen atom, (C-C)hydrocarbyl and, optionally, Rand Rare connected to form a ring having from 3 to 50 atoms in the ring, excluding hydrogen atoms. X is Si, Ge, Sn, or Pb. Each Q is independently Ar—YR— or Ar—Y—R—. Rand Rare independently selected from —(CR)—, where m is 1 or 2, and where each Ris independently selected from the group consisting of (C-C)hydrocarbyl, (C-C)heterohydrocarbyl, and —H. Yand Yare independently S, Se, or Te. Arand Arare independently (C-C)aryl. Ar—Y—R— and Ar—Y—R— are not identical. Each Zis independently selected from Cl, Br, and I.