Back to results
US 2011/0213109 A1Published application
Mono-Indenyl Transition Metal Compounds and Polymerization Therewith
AssigneeExxonMobil Chemical Patents Inc.
InventorsAlexander Z. Voskoboynikov, Mikhail V. Nikulin, Aleksey A. Tsarev, Andrey F. Asachenko, Alexander V. Babkin, Garth R. Giesbrecht, Jo Ann M. Canich
Life of this patent
Estimating the term…
Abstract
This invention relates to transition metal compounds, catalyst systems comprising said compounds and polymerization processes using such catalyst systems, where the transition metal compound is represented by the formula: This invention also relates to process to produce such compounds.
Claims24
A transition metal compound represented by the formula:
- where M is a group 3, 4, 5 or 6 metal;
- J is a group 15 or 16 atom, and when J is a group 15 metal, m is 1, indicating the presence of R′, and when J is a group 16 metal, m is zero, indicating the absence of R;
- G is a bridging group and n is 1, 2 or 3 indicating the number of atoms in the direct chain between the indenyl ring and the ligand J;
- R1, R2, R3, R4, R5, and R6 are independently selected from a hydrogen, fluoro, or hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl radical, and two or more adjacent R1, R2, R3, R4, R5, and R6 can join together to form a cyclic group fused to the indenyl ring;
- R′ is selected from a hydrocarbyl, halohydrocarbyl, or substituted hydrocarbyl radical;
- X is a univalent ionic ligand, L is a Lewis base ligand and b is 0, 1 or 2 representing the presence (b=1 or 2) or absence (b=0) of L, provided that when n is 2, G is not O—SiR2, or R4Ph, and when n is 3, G is not SiR2(R4Ph), where Ph is phenyl and each R is as defined for R′.
3 more elements
A process to make a metallocene precursor ligand comprising contacting:
- magnesium and X*—Y*—X*, where X*is halogen and Y* is a bridging group, with a compound represented by the formula:
- where R1, R2, R3, R4, R5, and R6 are independently selected from a hydrogen, fluoro, or hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl radical, and two or more adjacent of R1, R2, R3, R4, R5, and R6 can join together to form a cyclic group fused to the indenyl ring;
- and thereafter contacting the reaction product with R′EHLi or R′EH2, where R′ is selected from a hydrocarbyl, halohydrocarbyl, or substituted hydrocarbyl radical, and E is nitrogen or phosphorus.
A process to make a metallocene precursor ligand comprising contacting:
- magnesium and a substituted or unsubstituted N-(p-tosyl)aziridine, with a compound represented by the formula:
- where R1, R2, R3, R4, R5, and R6 are independently selected from a hydrogen, fluoro, or hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl radical, and two or more adjacent of R1, R2, R3, R4, R5, and R6 can join together to form a cyclic group fused to the indenyl ring;
- and thereafter contacting the reaction product with 1) R′X*, where X* is a halide and R′ is selected from a hydrocarbyl, halohydrocarbyl, or substituted hydrocarbyl radical, and E is nitrogen or phosphorus, and 2) Cs2CO3, and thereafter reacting the second reaction product with magnesium and NH4C1.
A process to make a metallocene precursor ligand comprising contacting:
- NaBH4 and C1 to C12 alky iodide with a compound represented by the formula:
- where R1, R2, R4, R5, and R6 are independently selected from a hydrogen, fluoro, or hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl radical, and two or more adjacent of R1, R2, R3, R4, R5, and R6 can join together to form a cyclic group fused to the indenyl ring;
- thereafter contacting the reaction product with alkyl lithium and a compound represented by the formula:
- where each R″ is, independently, hydrogen, hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, or germylcarbyl, and thereafter reacting the second reaction product with dimethylformamide and PPh3, where Ph is phenyl, and thereafter reacting the third reaction product with TsOH, where Ts is tosyl, and hereafter reacting the fourth reaction product with R′NH2, K3CO3 and dimethylformamide, where R′ is selected from a hydrocarbyl, halohydrocarbyl, or substituted hydrocarbyl radical.
1 more element
A process to make a metallocene precursor ligand comprising contacting:
- NaBH4 and C1 to C12 alky iodide with a compound represented by the formula:
- where R1, R2, R4, R5, and R6 are independently selected from a hydrogen, fluoro, or hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl radical, and two or more adjacent of R1, R2, R3, R4, R5, and R6 can join together to form a cyclic group fused to the indenyl ring;
- thereafter contacting the reaction product with alkyl lithium and dimethylformamide and thereafter reacting the second reaction product with NaBH4, and hereafter reacting the third reaction product with N-bromosuccinimide and PPh3, where Ph is phenyl, and thereafter reacting the fourth reaction product with TsOH where Ts is tosyl, thereafter reacting the fifth reaction product with RNH2 and K3CO3 and dimethylformamide,
- where R′ is selected from a hydrocarbyl, halohydrocarbyl, or substituted hydrocarbyl radical.
1 more element
Dependencies are inferred from the claim text.