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US 9,193,813 B2Granted
Phenylene-bridged salalen catalysts
AssigneesExxonMobil Chemical Patents Inc., Ramot at Tel-Aviv University Ltd.
InventorsMoshe Kol, Matthew W. Holtcamp, Konstantin Press, Ayellet Stopper
Life of this patent
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Abstract
A phenylene-bridged Salalen catalyst, a catalyst system comprising an activator and the phenylene-bridged Salalen catalyst, a process comprising contacting one or more olefins with the catalyst system, and polymers produced by the process are disclosed herein.
Claims28
A catalyst compound represented by the formula:
- wherein each solid line represents a covalent bond and each arrow represents a bond having a varying degree of covalency and a varying degree of coordination;
- wherein M is a Group 4 metal;
- N1 and N2 are nitrogen;
- O is oxygen;
- each of X1 and X2 is, independently, a univalent C1 to C20 hydrocarbyl radical, a functional group comprising elements from Groups 13 to 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 each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, and R16 is, independently, hydrogen, a C1-C40 hydrocarbyl radical, a functional group comprising elements from Groups 13 to 17 of the periodic table of the elements, two or more of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, and R16 independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof.
3 more elements
A catalyst system comprising:
- an activator and a catalyst compound represented by the formula:
- wherein each solid line represents a covalent bond and each arrow represents a bond having a varying degree of covalency and a varying degree of coordination;
- wherein M is a Group 4 metal;
- N1 and N2 are nitrogen and O is oxygen;
- each of X1 and X2 is, independently, a univalent C1 to C20 hydrocarbyl radical, a functional group comprising elements from Groups 13 to 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 each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, and R16 is independently, hydrogen, a C1-C40 hydrocarbyl radical, a functional group comprising elements from Groups 13 to 17 of the periodic table of the elements, two or more of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, and R16 independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof.
3 more elements
A process comprising:
- contacting one or more olefins with a catalyst system at a temperature, a pressure, and for a period of time sufficient to produce a polyolefin;
- the catalyst system comprising an activator and a catalyst compound represented by the formula:
- wherein each solid line represents a covalent bond and each arrow represents a bond having a varying degree of covalency and a varying degree of coordination;
- wherein M is a Group 4 metal;
- N1 and N2 are nitrogen and O is oxygen;
- each of X1 and X2 is, independently, a univalent C1 to C20 hydrocarbyl radical, a functional group comprising elements from Groups 13 to 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 each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15 and R16 is independently, hydrogen, a C1-C40 hydrocarbyl radical, a functional group comprising elements from Groups 13 to 17 of the periodic table of the elements, two or more of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, and R16 independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof.
4 more elements
Dependencies are inferred from the claim text.