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US 8,569,195 B2Granted
Internal and external donor compounds for olefin polymerization catalysts II
AssigneeBASF SE
InventorMain Chang
Life of this patent
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Abstract
The present invention relates to catalyst systems containing solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ether group and at least one ketone group; organoaluminum compounds and alkyl benzoate derivatives as external electron donors. The present invention also relates to methods of making the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
Claims18
A catalyst system for use in olefinic polymerization, comprising:
- (i) a solid catalyst component comprising titanium, magnesium, halogen and an internal electron donor compound;
- (ii) an organoaluminum compound;
- and
- (iii) an alkyl benzoate derivative,
- wherein the internal electron donor compound comprises a compound represented by a general formula (I):
- wherein R1, R2, R3, and R4 are identical or different and are each independently a substituted or unsubstituted hydrocarbon group, and R1, C1, and R2 are a part of a substituted or unsubstituted cyclic or polycyclic structure comprising from about 5 to about 20 carbon atoms.
3 more elements
A catalyst system for use in olefinic polymerization, comprising:
- (i) a solid catalyst component comprising a reaction product of a titanium compound, a magnesium compound, and an internal electron donor compound;
- (ii) an organoaluminum compound;
- and
- (iii) an alkyl benzoate derivative,
- wherein the internal electron donor compound comprises a compound represented by a general formula (I):
- wherein R1, R2, R3, and R4 are identical or different and are each independently a substituted or unsubstituted hydrocarbon group, and R1, C1, and R2 are a part of a substituted or unsubstituted cyclic or polycyclic structure comprising from about 5 to about 20 carbon atoms.
3 more elements
Dependencies are inferred from the claim text.