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US 11,117,908 B2Granted
Process to make non-coordinating anion type activators in aliphatic and alicyclic hydrocarbon solvents
AssigneeExxonMobil Chemical Patents Inc.
InventorsCatherine A. Faler, Margaret T. Whalley, John R. Hagadorn
Life of this patent
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Abstract
The present disclosure provides borate activators comprising cations having linear alkyl groups, catalyst systems comprising, and processes for polymerizing olefins using such activators. Specifically, the present disclosure provides polymerization activator compounds which may be prepared in, and which are soluble in aliphatic hydrocarbon and alicyclic hydrocarbon solvents.
Claims30
A process to produce an activator compound comprising:
- i) contacting a compound according to formula (A) with a compound having the general formula M-(BR4R5R6R7) in a solvent including isohexane, hexane, or n-hexane, or a combination thereof, at a reaction temperature ranging from 30° C. to 20° C., and for a period of time sufficient to produce a mixture comprising the activator compound according to formula (I) and a salt having the formula M(X);
- wherein formula (A) is represented by:
- wherein formula (I) is represented by:
- wherein in each of formulae (A) and (I):
- each of R1 and R2 is independently a hydrogen or a C1-C40 linear alkyl, with R8, R9, R10, R11, and R12 being independently C1-C40 linear alkyl and not hydrogen;
- R1, R2, R8, R9, R10, R11, and R12 together comprise 15 or more carbon atoms;
- each of R4, R5, R6, and R7 comprises an aromatic hydrocarbon having from 6 to 24 carbon atoms;
- at least one of R4, R5, R6, and R7 is substituted with one or more fluorine atoms;
- X is halogen;
- and
- M is a Group 1 metal;
- and
- wherein a 1 millimole per liter mixture of the activator compound in n-hexane, isohexane, hexane, or a combination thereof, forms a clear homogeneous solution at 25° C.
10 more elements
A process of polymerizing olefins to produce at least one polyolefin, the process comprising:
- i) contacting a compound according to formula (A) with a compound having the general formula M-(BR4R5R6R7) in a solvent including isohexane, hexane, or n-hexane, or a combination thereof, at a reaction temperature ranging from 30° C. to 20° C. and for a period of time sufficient to produce a mixture comprising an activator compound according to formula (I) and a salt having the formula M(X);
- wherein formula (A) is represented by:
- wherein formula (I) is represented by:
- wherein in each of formulae (A) and (I):
- each of R1 and R2 is independently a hydrogen or a C1-C40 linear alkyl, with R8, R9, R10, R11, and R12 being independently C1-C40 linear alkyl and not hydrogen;
- R1, R2, R8, R9, R10, R11, and R12 together comprise 15 or more carbon atoms;
- each of R4, R5, R6, and R7 comprises an aromatic hydrocarbon having from 6 to 24 carbon atoms;
- at least one of R4, R5, R6, and R7 is substituted with one or more fluorine atoms;
- X is halogen;
- and
- M is a Group 1 metal;
- ii) filtering the mixture to remove the salt to produce a clear homogeneous solution comprising the activator compound according to formula (I) and optionally removing at least a portion of the solvent;
- iii) combining the activator and a catalyst to form a catalyst system, and
- iv) contacting at least one olefin with the catalyst system and obtaining the polyolefin;
- wherein a 1 millimole per liter mixture of the activator compound in hexane, n-hexane, isohexane, or a combination thereof, forms a clear homogeneous solution at 25° C.
12 more elements
Dependencies are inferred from the claim text.