C08F4/64186

CATALYST SYSTEMS FOR OLEFIN POLYMERIZATION

The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal-ligand complex of formula (I):

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CATALYST SYSTEMS FOR OLEFIN POLYMERIZATION

The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal-ligand complex of formula (I):

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TRANSITION METAL CATALYSTS FOR OLEFIN POLYMERIZATION
20230002515 · 2023-01-05 ·

Processes of polymerizing olefin monomers using catalyst systems and catalysts systems that include a procatalyst having a structure according to formula (I):

TRANSITION METAL CATALYSTS FOR OLEFIN POLYMERIZATION
20230002515 · 2023-01-05 ·

Processes of polymerizing olefin monomers using catalyst systems and catalysts systems that include a procatalyst having a structure according to formula (I):

A PROCESS FOR PRODUCING LONG-CHAIN BRANCHED ETHYLENE-BASED POLYMERS

The disclosure are directed to a process for polymerizing ethylene-based polymers. The process includes polymerizing ethylene and optionally one or more (C.sub.3-C.sub.14)α-olefin monomer, and at least one diene, in the presence of at least one multi-chain catalyst and at least one single-chain catalyst. The process may include a solvent. The multi-chain catalyst in the process includes a plurality of polymerization sites. Long-chain branched polymers are synthesized by connecting the two polymer chains of the multi-chain catalyst with the diene, the joining of the two polymer chains being performed in a concerted manner during the polymerization. The ethylene-based polymers are produced and include at least two molecular weight polymer fractions. The multi-chain catalyst produces the high molecular weight fraction, which is the long-chain branched polymer.

A PROCESS FOR PRODUCING LONG-CHAIN BRANCHED ETHYLENE-BASED POLYMERS

The disclosure are directed to a process for polymerizing ethylene-based polymers. The process includes polymerizing ethylene and optionally one or more (C.sub.3-C.sub.14)α-olefin monomer, and at least one diene, in the presence of at least one multi-chain catalyst and at least one single-chain catalyst. The process may include a solvent. The multi-chain catalyst in the process includes a plurality of polymerization sites. Long-chain branched polymers are synthesized by connecting the two polymer chains of the multi-chain catalyst with the diene, the joining of the two polymer chains being performed in a concerted manner during the polymerization. The ethylene-based polymers are produced and include at least two molecular weight polymer fractions. The multi-chain catalyst produces the high molecular weight fraction, which is the long-chain branched polymer.

POST-METALLOCENE COMPOUNDS

The present invention relates to a compound according to formula 1: wherein: •each of R.sub.1 to R.sub.12 may individually be a moiety selected from hydrogen, an aryl moiety, an aryl moiety, a halogen, an alkyl or aryl moiety with halogen substituent(s), an alkoxy moiety, a siloxy moiety, or a nitrogen-containing moiety, wherein each R moiety may optionally form a ring structure with an adjacent R moiety; •each of A.sub.1 and A.sub.2 may individually be a moiety selected from: o an element of Group 16 of the periodic system; and o a moiety containing an element of Group 15 of the periodic system; preferably wherein A.sub.1 and A.sub.2 are selected from O or NR.sub.13, wherein R.sub.13 is an alkyl, aryl or aralkyl moiety, preferably a substituted or unsubstituted phenyl moiety, preferably a p-tolyl moiety; •T is a divalent hydrocarbyl moiety; •D is a substituted element of Group 15 or Group 16 of the periodic system, preferably an N(R.sub.14).sub.2 or OR.sub.14 moiety, in which R.sub.14 is selected to be an alkyl moiety, an aryl moiety, or an aralkyl moiety, preferably R.sub.14 is a methyl moiety; •Y is an element selected from Group 15 of the periodic system, preferably N; •Mt is a transition metal, preferably selected from Group 3 or 4 of the periodic system, more preferably selected from Ti, Hf and Zr; •X is a sigma-bonded ligand, preferably selected from a halogen, an alkyl moiety, an aralkyl moiety, an alkoxy moiety, an aryloxy moiety, and a dialkylamine moiety; and Classification: General Business Use •n is the amount of X ligands bonded to X. Such compound allow for use in catalysts that result in high molecular weight polymers, display high catalyst activities and give excellent comonomer incorporation.

POST-METALLOCENE COMPOUNDS

The present invention relates to a compound according to formula 1: wherein: •each of R.sub.1 to R.sub.12 may individually be a moiety selected from hydrogen, an aryl moiety, an aryl moiety, a halogen, an alkyl or aryl moiety with halogen substituent(s), an alkoxy moiety, a siloxy moiety, or a nitrogen-containing moiety, wherein each R moiety may optionally form a ring structure with an adjacent R moiety; •each of A.sub.1 and A.sub.2 may individually be a moiety selected from: o an element of Group 16 of the periodic system; and o a moiety containing an element of Group 15 of the periodic system; preferably wherein A.sub.1 and A.sub.2 are selected from O or NR.sub.13, wherein R.sub.13 is an alkyl, aryl or aralkyl moiety, preferably a substituted or unsubstituted phenyl moiety, preferably a p-tolyl moiety; •T is a divalent hydrocarbyl moiety; •D is a substituted element of Group 15 or Group 16 of the periodic system, preferably an N(R.sub.14).sub.2 or OR.sub.14 moiety, in which R.sub.14 is selected to be an alkyl moiety, an aryl moiety, or an aralkyl moiety, preferably R.sub.14 is a methyl moiety; •Y is an element selected from Group 15 of the periodic system, preferably N; •Mt is a transition metal, preferably selected from Group 3 or 4 of the periodic system, more preferably selected from Ti, Hf and Zr; •X is a sigma-bonded ligand, preferably selected from a halogen, an alkyl moiety, an aralkyl moiety, an alkoxy moiety, an aryloxy moiety, and a dialkylamine moiety; and Classification: General Business Use •n is the amount of X ligands bonded to X. Such compound allow for use in catalysts that result in high molecular weight polymers, display high catalyst activities and give excellent comonomer incorporation.

POLYMERIZATION CATALYST HAVING A TETRADENTATE LIGAND

A new olefin polymerization catalyst is ligated with a tetradentate ligand having a phenoxy/amino/ether/phenoxy (O/N/O/O) atom donor set. The new polymerization catalyst which is based on zirconium or hafnium produces an ethylene copolymer with high molecular weight and high comonomer incorporation levels.

POLYMERIZATION CATALYST HAVING A TETRADENTATE LIGAND

A new olefin polymerization catalyst is ligated with a tetradentate ligand having a phenoxy/amino/ether/phenoxy (O/N/O/O) atom donor set. The new polymerization catalyst which is based on zirconium or hafnium produces an ethylene copolymer with high molecular weight and high comonomer incorporation levels.