Non-coordinating anion type activators containing cation having large alkyl groups
The present disclosure provides borate or aluminate activators comprising cations having linear alkyl groups, catalyst systems comprising, and methods for polymerizing olefins using such activators. Specifically, the present disclosure provides activator compounds represented by Formula: [R 1 R 2 R 3 EH] d + [M k+ Q n ] d− , wherein: E is nitrogen or phosphorous; d is 1, 2 or 3; k is 1, 2, or 3; n is 1, 2, 3, 4, 5, or 6; n−k=d; R 1 is C 1 -C 20 linear alkyl group; each of R 2 and R 3 is a C 1 -C 40 linear alkyl group, a meta- and/or para-substituted phenyl group, an alkoxy group, a silyl group, a halogen, or a halogen containing group, wherein R 1 +R 2 +R 3 ≥15 carbon atoms; M is an element selected from group 13, typically B or Al; and each Q is independently a hydride, bridged or unbridged dialkylamido, halide, alkoxide, aryloxide, hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, or halosubstituted-hydrocarbyl radical, provided that when Q is a fluorophenyl group, then R 2 is not a C 1 -C 40 linear alkyl group.
1. A compound represented by Formula:
[cation] + [MQ 4 ] − (AI)
wherein:
M is an element selected from group 13 of the Periodic Table of the Elements; each Q is independently a hydride, bridged or unbridged dialkylamido, halide, alkoxide, aryloxide, hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, or halosubstituted-hydrocarbyl radical; and the [cation]+ is selected from the group consisting of:
2. The compound of claim 1 , wherein the Q in [MQ 4 ] − is perfluoroaryl.
3. The compound of claim 1 , wherein the [cation]+ is
4. The compound of claim 1 , wherein the [cation]+ is selected from the group consisting of
5. A catalyst system comprising a catalyst and the activator compound of claim 1 .
6. A method of polymerizing olefins to produce at least one polyolefin, the method comprising contacting at least one olefin with the catalyst system claim 5 , and obtaining a polyolefin.
7. The method of claim 6 , wherein the at least one olefin is propylene and the polyolefin is isotactic polypropylene.
8. A composition or solution comprising the catalyst system of claim 5 and an aliphatic solvent, where aromatic solvents are absent.
9. A method of polymerizing olefins to produce at least one polyolefin, the method comprising contacting two or more different olefins with the catalyst system of claim 5 ; and obtaining a polyolefin.