Patent classifications
C08F4/64189
Catalysts for Olefin Polymerization
The present disclosure provides catalyst compounds represented by Formula (I):
##STR00001##
where Q is OR.sup.13, SR.sup.13, NR.sup.13R.sup.14, PR.sup.13R.sup.14, or a heterocyclic ring; each R.sup.1-14 is independently hydrogen, C.sub.1-C.sub.40 hydrocarbyl, substituted C.sub.1-C.sub.40 hydrocarbyl, a heteroatom, or a heteroatom-containing group, or multiple R.sup.1-14 are joined together to form a C.sub.4-C.sub.62 cyclic, heterocyclic, or polycyclic ring structure, or combination(s) thereof; each X.sup.1 and X.sup.2 is independently C.sub.1-C.sub.20 hydrocarbyl, substituted C.sub.1-C.sub.20 hydrocarbyl, a heteroatom, or a heteroatom-containing group, or X.sup.1 and X.sup.2 join together to form a C.sub.4-C.sub.62 cyclic, heterocyclic, or polycyclic ring structure; and Y is a hydrocarbyl. The present disclosure also provides catalyst systems including an activator, a support, and a catalyst of the present disclosure. The present disclosure also provides polymerization processes including introducing olefin monomers to a catalyst system. Additionally, the present disclosure provides a polyolefin formed by a catalyst system or method of the present disclosure.
Catalysts for Olefin Polymerization
The present disclosure provides catalyst compounds represented by Formula (I):
##STR00001##
where Q is OR.sup.13, SR.sup.13, NR.sup.13R.sup.14, PR.sup.13R.sup.14, or a heterocyclic ring; each R.sup.1-14 is independently hydrogen, C.sub.1-C.sub.40 hydrocarbyl, substituted C.sub.1-C.sub.40 hydrocarbyl, a heteroatom, or a heteroatom-containing group, or multiple R.sup.1-14 are joined together to form a C.sub.4-C.sub.62 cyclic, heterocyclic, or polycyclic ring structure, or combination(s) thereof; each X.sup.1 and X.sup.2 is independently C.sub.1-C.sub.20 hydrocarbyl, substituted C.sub.1-C.sub.20 hydrocarbyl, a heteroatom, or a heteroatom-containing group, or X.sup.1 and X.sup.2 join together to form a C.sub.4-C.sub.62 cyclic, heterocyclic, or polycyclic ring structure; and Y is a hydrocarbyl. The present disclosure also provides catalyst systems including an activator, a support, and a catalyst of the present disclosure. The present disclosure also provides polymerization processes including introducing olefin monomers to a catalyst system. Additionally, the present disclosure provides a polyolefin formed by a catalyst system or method of the present disclosure.
Polymerization processes
Polymerization processes to produce polyolefin polymers, for example, polyethylene polymers, from catalyst systems comprising one or more olefin polymerization catalysts and at least one activator are provided. The polyolefin polymers may have a Broad Orthogonal Composition Distribution (BOCD).
Polymerization processes
Polymerization processes to produce polyolefin polymers, for example, polyethylene polymers, from catalyst systems comprising one or more olefin polymerization catalysts and at least one activator are provided. The polyolefin polymers may have a Broad Orthogonal Composition Distribution (BOCD).
Bridged phenolate transition metal complexes, production, and uses thereof
The present disclosure provides transition metal catalysts and the respective bridged phenolate ligands contained on the catalyst, as well as, catalyst systems and polymerization processes for producing polyolefins. The catalysts and the catalyst systems provide catalytic activity values of greater than 100 kg/mmol-hr, such as greater than 400 kg/mmol-hr or greater than 500 kg/mmol-hr.
Bridged phenolate transition metal complexes, production, and uses thereof
The present disclosure provides transition metal catalysts and the respective bridged phenolate ligands contained on the catalyst, as well as, catalyst systems and polymerization processes for producing polyolefins. The catalysts and the catalyst systems provide catalytic activity values of greater than 100 kg/mmol-hr, such as greater than 400 kg/mmol-hr or greater than 500 kg/mmol-hr.
Mixed Catalyst System
This invention relates to a supported catalyst system comprising a first iron based catalyst, a second group 4 metal catalyst, a support material, and an activator; wherein the first catalyst is represented by Formula (I) and the second catalyst is represented by Formula (II):
##STR00001##
Mixed Catalyst System
This invention relates to a supported catalyst system comprising a first iron based catalyst, a second group 4 metal catalyst, a support material, and an activator; wherein the first catalyst is represented by Formula (I) and the second catalyst is represented by Formula (II):
##STR00001##
Polyolefin-arylene-ether nanoplatelet composites
Disclosed is a graft copolymer comprising an arylene-ether oligomer group having at least one polyolefin moiety bound thereto, wherein the arylene-ether oligomer has a number average molecular weight of less than 5,000 g/mole and the polyolefin has Mw of less than 10,000 g/mole. Also disclosed is a method to prepare a graft copolymer comprising reacting a neat or diluted arylene-ether oligomer with a vinyl or vinylidene-terminated polyolefin at a temperature of at least 80 or 100 or 120 C. to form heated reaction components; further reacting a Brnsted acid or Lewis acid with the heated reaction components to form a polyolefin-arylene-ether oligomer.
Polyolefin-arylene-ether nanoplatelet composites
Disclosed is a graft copolymer comprising an arylene-ether oligomer group having at least one polyolefin moiety bound thereto, wherein the arylene-ether oligomer has a number average molecular weight of less than 5,000 g/mole and the polyolefin has Mw of less than 10,000 g/mole. Also disclosed is a method to prepare a graft copolymer comprising reacting a neat or diluted arylene-ether oligomer with a vinyl or vinylidene-terminated polyolefin at a temperature of at least 80 or 100 or 120 C. to form heated reaction components; further reacting a Brnsted acid or Lewis acid with the heated reaction components to form a polyolefin-arylene-ether oligomer.