Long-bridged salen catalyst
AssigneesExxonMobil Chemical Patents Inc., Ramot at Tel-Aviv University Ltd.
InventorsMoshe Kol, Matthew W. Holtcamp, Garth R. Giesbrecht, Gregory S. Day, Konstantin Press
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Abstract
Catalysts comprising long-bridged salen ligands comprising an imino-phenylene-alkylene-imino or an imino-napthalenylene-alkylene-imino bridged salen compound. Also, catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes.
Claims26
A catalyst compound represented by the formula:
- comprising [O1,N1,N2]—[N1,N2,O2] in a fac-mer arrangement or a mer-fac arrangement or a fac-fac arrangement;
- wherein each solid line represents a covalent bond and each dashed line represents a bond having varying degrees of covalency and a varying degree of coordination;
- wherein M is a Group 4, 5 or 6 transition metal;
- wherein N1 and N2 are nitrogen and O1 and O2 are oxygen;
- wherein each of X1 and X2 is, independently, a univalent C1 to C20 hydrocarbyl radical, a functional group comprising elements from Groups 13-17 of the periodic table of the elements, or X1 and X2 join together to form a C4 to C62 cyclic or polycyclic ring structure;
- wherein Y comprises an sp3 carbon directly bonded to N2 and is selected from the group consisting of divalent C1 to C40 hydrocarbyl radicals, divalent functional groups comprising elements from Groups 13-17 of the periodic table of the elements, and combinations thereof;
- wherein each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 and R12 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a functional group comprising elements from Group 13-17 of the periodic table of the elements, or two or more of R1 to R12 may independently join together to form a C4 to C62 cyclic or polycyclic ring structure.
A catalyst system comprising:
- an activator and a catalyst compound represented by the formula:
- wherein N1 and N2 are nitrogen and O1 and O2 are oxygen and comprising [O1,N1,N2]—[N1,N2,O2] in a fac-mer arrangement, or a mer-fac arrangement or a fac-fac arrangement, or wherein activation of the catalyst compound rearranges [O1,N1,N2]—[N1,N2,O2] into a fac-mer arrangement, or a mer-fac arrangement or a fac-fac arrangement;
- wherein each solid line represents a covalent bond and each dashed line represents a bond having varying degrees of covalency and a varying degree of coordination;
- wherein M is a Group 4, 5 or 6 transition metal;
- wherein each of X1 and X2 is, independently, a univalent C1 to C20 hydrocarbyl radical, a functional group comprising elements from Groups 13-17 of the periodic table of the elements, or X1 and X2 join together to form a C4 to C62 cyclic or polycyclic ring structure;
- wherein Y comprises an sp3 carbon directly bonded to N2 and is selected from the group consisting of divalent C1 to C40 hydrocarbyl radicals, divalent functional groups comprising elements from Groups 13-17 of the periodic table of the elements, and combinations thereof;
- wherein each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, and R12 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a functional group comprising elements from Group 13-17 of the periodic table of the elements, or two or more of R1 to R12 may independently join together to form a C4 to C62 cyclic or polycyclic ring structure.
A process to activate a catalyst system, comprising combining an activator with a catalyst compound represented by the formula:
- wherein N1 and N2 are nitrogen and O1 and O2 are oxygen and comprising [O1,N1,N2]—[N1,N2,O2] in a fac-mer arrangement or a mer-fac arrangement or a fac-fac arrangement, or wherein activation rearranges [O1,N1,N2]—[N1,N2,O2] into a fac-mer arrangement or a mer-fac arrangement or a fac-fac arrangement;
- wherein M is a Group 4, 5 or 6 transition metal;
- wherein each of X1 and X2 is, independently, a univalent C1 to C20 hydrocarbyl radical, a functional group comprising elements from Groups 13-17 of the periodic table of the elements, or X1 and X2 join together to form a C4 to C62 cyclic or polycyclic ring structure;
- wherein Y comprises an sp3 carbon directly bonded to N2 and is selected from the group consisting of divalent C1 to C40 hydrocarbyl radicals, divalent functional groups comprising elements from Groups 13-17 of the periodic table of the elements, and combinations thereof;
- and
- wherein each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, and R12 is, independently, a hydrogen, a C1-C40 to hydrocarbyl radical, a functional group comprising elements from Group 13-17 of the periodic table of the elements, or two or more of R1 to R12 may independently join together to form a C4 to C62 cyclic or polycyclic ring structure.
A process to polymerize olefins comprising:
- contacting one or more olefins with a catalyst system at polymerization conditions to produce a polyolefin, the catalyst system comprising an activator and a catalyst compound represented by the formula:
- wherein M is a Group 4, 5 or 6 transition metal;
- wherein N1 and N2 are nitrogen and O1 and O2 are oxygen;
- wherein each of X1 and X2 is, independently, a univalent C1 to C20 hydrocarbyl radical, a functional group comprising elements from Groups 13-17 of the periodic table of the elements, or X1 and X2 join together to form a C4 to C62 cyclic or polycyclic ring structure;
- wherein Y comprises an sp3 carbon directly bonded to N2 and is selected from the group consisting of divalent C1 to C40 hydrocarbyl radicals, divalent functional groups comprising elements from Groups 13-17 of the periodic table of the elements, and combinations thereof;
- and
- wherein each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, and R12 is, independently, a hydrogen, a C1-C40 to hydrocarbyl radical, a functional group comprising elements from Group 13-17 of the periodic table of the elements, or two or more of R1 to R12 may independently join together to form a C4 to C62 cyclic or polycyclic ring structure.
Dependencies are inferred from the claim text.