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US 2025/0145650 A1Published application
C1 Symmetric 5-OMe-6-alkyl Substituted Metallocenes
OwnerNikola S. Lambic, Gregory J. Smith-Karahalisinventors
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Abstract
The 5-OMe-6-tBu substitution of the indenyl fragment of C1 symmetric catalysts is critical for improvements in EP molecular weight capability. The catalysts described in this document are also capable of producing other ordinary polyolefins such as iPP, PE and EO copolymers. The added capability of high molecular weight EP copolymers may expand the potential of C1 symmetric systems in the area of RCPs and ICPs where such capability is necessary.
Claims15
A catalyst compound represented by Formula (I):
- wherein,
- M is a Group 4 metal;
- each of X1 and X2 is a univalent anionic ligand, or X1 and X2 are joined to form a metallocycle ring;
- R1-R4 is each independently hydrogen, an unsubstituted C1-C40 hydrocarbyl, a C1-C40 substituted hydrocarbyl, an unsubstituted C4-C62 aryl, a substituted C4-C62 aryl, an unsubstituted C4-C62 heteroaryl, a substituted C4-C62 heteroaryl, —NR′2, —SR′, —OR, —SiR′3, —OSiR′3, —PR′2, or —R″—SiR′3, where R″ is C1-C10 alkyl and each R′ is independently hydrogen, halogen, C1-C10 alkyl, or C6-C10 aryl;
- R5 is hydrogen, an unsubstituted C1-C40 hydrocarbyl, a C1-C40 substituted hydrocarbyl, an unsubstituted C4-C62 aryl, a substituted C4-C62 aryl, an unsubstituted C4-C62 heteroaryl, a substituted C4-C62 heteroaryl, —NR′2, —SR′, —OR, —SiR′3, —OSiR′3, —PR′2, or —R″—SiR′3, where R″ is C1-C10 alkyl and each R′ is independently hydrogen, halogen, C1-C10 alkyl, or C6-C10 aryl;
- R6—R10 is each independently hydrogen, an unsubstituted C1-C40 hydrocarbyl, a C1-C40 substituted hydrocarbyl, an unsubstituted C4-C62 aryl, a substituted C4-C62 aryl, an unsubstituted C4-C62 heteroaryl, a substituted C4-C62 heteroaryl, —NR′2, —SR′, —OR, —SiR′3, —OSiR′3, —PR′2, or —R″—SiR′3, where R″ is C1-C10 alkyl and each R′ is independently hydrogen, halogen, C1-C10 alkyl, or C6-C10 aryl;
- R14 and R″ each independently hydrogen, an unsubstituted C1-C40 hydrocarbyl, a C1-C40 substituted hydrocarbyl, an unsubstituted C4-C62 aryl, a substituted C4-C62 aryl, an unsubstituted C4-C62 heteroaryl, a substituted C4-C62 heteroaryl, —NR′2, —SR′, —OR, —SiR′3, —OSiR′3, —PR′2, or —R″—SiR′3, where R″ is C1-C10 alkyl and each R′ is independently hydrogen, halogen, C1-C10 alkyl, or C6-C10 aryl;
- R12 and R13 are each independently an unsubstituted C1-C40 hydrocarbyl, a C1-C40 substituted hydrocarbyl, an unsubstituted C4-C62 aryl, a substituted C4-C62 aryl, an unsubstituted C4-C62 heteroaryl, a substituted C4-C62 heteroaryl, —NR′2, —SR′, —OR, —SiR′3, —OSiR′3, —PR′2, or —R″—SiR′3, wherein R″ is C1-C10 alkyl and each R′ is independently hydrogen, halogen, C1-C10 alkyl, or C6-C10 aryl;
- optionally, R12 and R13 may be joined;
- and
- R16 is an unsubstituted C1-C40 hydrocarbyl, a C1-C40 substituted hydrocarbyl, an unsubstituted C4-C62 aryl, a substituted C4-C62 aryl, an unsubstituted C4-C62 heteroaryl, a substituted C4-C62 heteroaryl, —R″—SiR′3, wherein R″ is C1-C10 alkyl and each R′ is independently hydrogen, halogen, C1-C10 alkyl, or C6-C10 aryl.
8 more elements
Dependencies are inferred from the claim text.