Group III and lanthanide bis-phenyl-phenoxy metal-ligand complexes

US12565508B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12565508-B2
Application numberUS-202217930274-A
CountryUS
Kind codeB2
Filing dateSep 7, 2022
Priority dateJan 31, 2020
Publication dateMar 3, 2026
Grant dateMar 3, 2026

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Embodiments of this disclosure are directed to catalyst systems comprising a metal-ligand complex according to formula (I):

First claim

Opening claim text (preview).

The invention claimed is: 1 . An olefin propagating catalytic species according to formula (Ia): where: M is scandium, yttrium, or a lanthanide metal having an oxidation state of +3; X P is a ligand chosen from hydrocarbyl, wherein the hydrocarbyl is branched or unbranched having at least 30 carbon atoms; each Z is independently chosen from —O—, —S—, —N(R N )—, or —P(R P )—, wherein the dotted line optionally defines a dative bond; R 1 and R 16 are independently selected from the group consisting of (C 1 -C 40 ) hydrocarbyl, (C 1 -C 40 ) heterohydrocarbyl, —Si(R C ) 3 , —Ge(R C ) 3 , —P(R P ) 2 , —N(R N ) 2 , —OR C , —SR C , —NO 2 , —CN, —CF 3 , R C S(O)—, R C S(O) 2 —, —N═C(R C ) 2 , R C C(O)O—, R C OC(O)—, R C C(O)N(R)—, (R C ) 2 NC(O)—, or halogen; R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , and R 15 are independently selected from —H, (C 1 -C 40 ) hydrocarbyl, (C 1 -C 40 ) heterohydrocarbyl, —Si(R C ) 3 , —Ge(R C ) 3 , —P(R P ) 2 , —N(R N ) 2 —OR C , —SR C , —NO 2 , —CN, —CF 3 , R C S(O)—, R C S(O) 2 —, (R C ) 2 C═N—, (R C ) 2 P═N—, R C C(O)O—, R C OC(O)—, R C C(O)N(R)—, (R C ) 2 NC(O)—, and halogen; provided that when M is yttrium or a lanthanide metal, R 1 is not —H, phenyl or tert-butyl; and R 16 is not —H, phenyl or tert-butyl; L is (C 1 -C 40 ) hydrocarbylene or (C 1 -C 40 ) heterohydrocarbylene; and each R C , R P , and R N is independently a (C 1 -C 30 ) hydrocarbyl, (C 1 -C 30 ) heterohydrocarbyl, or —H. 2 . The olefin propagating catalytic species of claim 1 , wherein M is yttrium or a lanthanide metal, at least one of R 5-8 is not —H and at least one of R 9-12 is not —H. 3 . The olefin propagating catalytic species of claim 1 , where R 1 and R 16 are chosen from radicals having formula (II), radicals having formula (III), and radicals having formula (IV): where each of R 31-35 , R 41-48 , and R 51-59 is independently chosen from —H, (C 1 -C 40 ) hydrocarbyl, (C 1 -C 40 ) heterohydrocarbyl, —Si(R C ) 3 , —Ge(R C ) 3 , —P(R P ) 2 , —N(R N ) 2 , —OR C , —SR C , —NO 2 , —CN, —CF 3 , R C S(O)—, R C S(O) 2 —, (R C ) 2 C═N—, R C C(O)O—, R C OC(O)—, R C C(O)N(R N )—, (R C ) 2 NC(O)—, or halogen; provided that when R 1 and R 16 are formula (II), at least one of R 31 to R 35 is not —H. 4 . The olefin propagating catalytic species of claim 1 , wherein at least one of R 8 and R 9 is not —H. 5 . The olefin propagating catalytic species of claim 1 , wherein R 3 and R 14 are (C 1 -C 10 ) alkyl. 6 . The olefin propagating catalytic species of claim 1 , wherein R 3 and R 14 are —OR C , wherein R C is (C 1 -C 30 ) hydrocarbyl. 7 . The olefin propagating catalytic species of claim 1 , wherein R 3 and R 14 are tert-octyl, n-octyl, or n-octylalkoxy. 8 . The olefin propagating catalytic species of claim 1 , wherein R 6 and R 11 are tert-butyl. 9 . The olefin propagating catalytic species of claim 1 , wherein R 1 and R 16 are chosen from radicals having formula (III) and optionally R 42 and R 43 are linked to form a cyclic structure, and optionally R 46 and R 47 are linked to form a cyclic structure. 10 . The olefin propagating catalytic species of claim 1 , where L is chosen from —CH 2 —, —CH 2 (CH 2 ) m CH 2 — where m is from 0 to 3, —CH 2 Si(R C ) 2 CH 2 —, CH 2 Ge(R C ) 2CH 2 —, —CH(CH 3 )CH 2 CH*(CH 3 ), and —CH 2 (phen-1,2-di-yl)CH 2 —, where each R C in L is (C 1 -C 20 ) hydrocarbyl, and “C*” is a carbon atom from which a hydrogen atom is removed to form a secondary or tertiary alkyl radical.

Assignees

Inventors

Classifications

  • in combination with an organoaluminium compound · CPC title

  • Polymerisation using regulators, e.g. chain terminating agents {, e.g. telomerisation} · CPC title

  • Recycling of unreacted starting or intermediate materials · CPC title

  • using catalysts, e.g. selective catalysts · CPC title

  • Copolymers of ethene with alpha-alkenes, e.g. EP rubbers · CPC title

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What does patent US12565508B2 cover?
Embodiments of this disclosure are directed to catalyst systems comprising a metal-ligand complex according to formula (I):
Who is the assignee on this patent?
Dow Global Technologies Llc
What technology area does this patent fall under?
Primary CPC classification C07F5/003. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Mar 03 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).