	US 11,739,169 B2
	Solubility improvement of non-metallocene transition metal complexes in aliphatic hydrocarbon solvents
John R. Hagadorn, Houston, TX (US); Peijun Jiang, Katy, TX (US); Francis C. Rix, Houston, TX (US); Charles J. Harlan, Houston, TX (US); and Jo Ann M. Canich, Houston, TX (US)
Assigned to ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed by ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed on Apr. 9, 2021, as Appl. No. 17/226,659.
Claims priority of provisional application 63/015,287, filed on Apr. 24, 2020.
Prior Publication US 2021/0332164 A1, Oct. 28, 2021
Int. Cl. C08F 4/64 (2006.01); C08F 4/642 (2006.01); C08F 4/659 (2006.01); C08F 4/62 (2006.01)

CPC C08F 4/65912 (2013.01) [C08F 4/62003 (2013.01); C08F 4/642 (2013.01); C08F 4/64003 (2013.01); C08F 4/65908 (2013.01)]

20 Claims

1. A solution comprising:

a non-metallocene transition metal complex dissolved in an aliphatic hydrocarbon solvent at a concentration ranging from about 2 mM to about 20 mM at 23° C. in the presence of an organoaluminum compound;

wherein a molar ratio of aluminum of the organoaluminum compound to transition metal of the non-metallocene transition metal complex is about 1:1 or greater, and the organoaluminum compound comprises at least about 8 carbons per aluminum; and

wherein the non-metallocene transition metal complex has an aliphatic hydrocarbon solubility of less than 2 mM in an absence of the organoaluminum compound.