	US 11,926,691 B2
	Method for making and using a supported zinc aluminum layered double hydroxide catalyst
Mamdouh A. Al-Harthi, Dhahran (SA); Sung-Gil Hong, Seoul (KR); Hassam Mazhar, Dhahran (SA); and Farrukh Shehzad, Dhahran (SA)
Assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA); and S-Oil Corporation, Seoul (KR)
Filed by KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA); and S-Oil Corporation, Seoul (KR)
Filed on May 5, 2023, as Appl. No. 18/312,849.
Application 18/312,849 is a continuation of application No. 17/877,468, filed on Jul. 29, 2022, granted, now 11,746,164.
Prior Publication US 2024/0034818 A1, Feb. 1, 2024
Int. Cl. C08F 4/02 (2006.01); B82Y 30/00 (2011.01); C08F 4/659 (2006.01); C08F 4/6592 (2006.01); C08F 10/02 (2006.01); C08F 210/16 (2006.01)

CPC C08F 4/65912 (2013.01) [C08F 4/02 (2013.01); C08F 10/02 (2013.01); B82Y 30/00 (2013.01); C08F 210/16 (2013.01)]

20 Claims

1. A method of making a supported catalyst and a polyolefin nanocomposite, comprising:

combining a zinc salt and an aluminum salt in an aqueous media and refluxing in the presence of an ionic surfactant and an inorganic base, then drying to obtain a zinc-aluminum layered double hydroxide (LDH);

mixing the zinc-aluminum layered double hydroxide, and a zirconocene complex in a nonpolar solvent to form a first mixture;

wherein prior to the mixing the zirconocene complex is not supported on the zinc-aluminum LDH;

sonicating the first mixture for at least one hour to form a homogeneous slurry;

degassing the homogeneous slurry and adding at least one olefin gas to form a second mixture;

adding an aluminoxane catalyst to the second mixture and reacting for at least 10 minutes to form a reaction mixture comprising the polyolefin nanocomposite; and

separating the polyolefin nanocomposite from the reaction mixture;

wherein the LDH is homogeneously dispersed in the polyolefin nanocomposite.