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. 21, 2023
Filed:
Dec. 11, 2019
Dow Global Technologies Llc, Midland, MI (US);
David A. Babb, Lake Jackson, TX (US);
Jean-Paul Masy, Destelbergen, BE;
David Keith Steelman, Angleton, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Catalyst complexes include a zinc hexacyanocobaltate with Mmetal and Mmetal or semi-metal phases, wherein Mmetal is gallium, hafnium, manganese, titanium and/or indium and the Mmetal or semi-metal is one or more of aluminum, magnesium, manganese, scandium, molybdenum, cobalt, tungsten, iron, vanadium, tin, titanium, silicon and zinc and is different from the Mmetal. The catalysts are highly efficient propylene oxide polymerization catalysts characterized by rapid activation, short times to the onset of rapid polymerization and high polymerization rates once rapid polymerization has begun.