Solid-supported amino-diphosphine ligand catalysts for selective oligomerization of ethylene to form linear alpha-olefins

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United States of America Patent

PATENT NO 11541381
SERIAL NO

17405602

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Abstract

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Ethylene oligomerization catalysts include a solid support having surface hydroxyl groups on a surface of the solid support. Functional groups attached to the solid support through at least one covalent bond and coordinated with at least one catalytically active transition metal. Individual functional groups are attached to the solid support as products of condensation reactions of at least one hydrolysable group of precursor ligands with a corresponding surface group of the solid support. The precursor ligands have a general formula (Ph2P)2N—R1-A, where R1 is C1-C40 hydrocarbylene or C1-C40 heterohydrocarbylene; and A is a hydrolysable group selected from trialkoxysilyl, halosilyl, carboxylates, esters, phosphonates, amines, imines, thiols, thiocarboxylates, or halides.

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Patent Owner(s)

  • SAUDI ARABIAN OIL COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ghosh, Yagnaseni Cambridge, US 4 25

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