Abstract: This disclosure describes polymerization processes and processes for quenching polymerization reactions using reactive particulates, such as amorphous silica, as quenching agents, typically in solution or bulk polymerization processes.

Abstract: The present disclosure relates to Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copolymerization. In at least one embodiment, the catalyst compounds belong to a family of compounds comprising amido-phenolate-heterocyclic ligands coordinated to group 4 transition metals. The tridendate ligand may include a central neutral hetrocyclic donor group, an anionic phenolate donor, and an anionic amido donor. In some embodiments, the present disclosure provides a catalyst system comprising an activator and a catalyst of the present disclosure. In some embodiments, the present disclosure provides a polymerization process comprising a) contacting one or more olefin monomers with a catalyst system comprising: i) an activator and ii) a catalyst of the present disclosure.

Abstract: A process to produce a branched ethylene-?-olefin diene elastomer comprising combining a catalyst precursor and an activator with a feed comprising ethylene, C3 to C12 ?-olefins, and a dual-polymerizable diene to obtain a branched ethylene-?-olefin diene elastomer; where the catalyst precursor is selected from pyridyldiamide and quinolinyldiamido transition metal complexes. The branched ethylene-?-olefin diene elastomer may comprise within a range from 40 to 80 wt % of ethylene-derived units by weight of the branched ethylene-?-olefin diene elastomer, and 0.1 to 2 wt % of singly-polymerizable diene derived units, 0.1 to 2 wt % of singly-polymerizable diene derived units, and the remainder comprising C3 to C12 ?-olefin derived units, wherein the branched ethylene-?-olefin diene elastomer has a weight average molecular weight (Mw) within a range from 100 kg/mole to 300 kg/mole, an average branching index (g?avgg) of 0.9 or more, and a branching index at very high Mw (g?1000) of less than 0.9.

Abstract: The present disclosure relates to amido-benzoquinone transition metal complexes, catalyst systems including amido-benzoquinone transition metal complexes, and polymerization processes to produce polyolefin polymers such as polyethylene-based polymers and polypropylene-based polymers.

Abstract: The present disclosure provides benzimidazolium borate activators comprising benzimidazolium 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.

Abstract: This disclosure describes polymerization processes and processes for quenching polymerization reactions using reactive particulates, such as amorphous silica, as quenching agents, typically in solution or bulk polymerization processes.

Abstract: A process to produce a branched ethylene-?-olefin diene elastomer comprising combining a catalyst precursor and an activator with a feed comprising ethylene, C3 to C12 ?-olefins, and a dual-polymerizable diene to obtain a branched ethylene-?-olefin diene elastomer; where the catalyst precursor is selected from pyridyldiamide and quinolinyldiamido transition metal complexes. The branched ethylene-?-olefin diene elastomer may comprise within a range from 40 to 80 wt % of ethylene-derived units by weight of the branched ethylene-?-olefin diene elastomer, and 0.1 to 2 wt % of singly-polymerizable diene derived units, 0.1 to 2 wt % of singly-polymerizable diene derived units, and the remainder comprising C3 to C12 ?-olefin derived units, wherein the branched ethylene-?-olefin diene elastomer has a weight average molecular weight (Mw) within a range from 100 kg/mole to 300 kg/mole, an average branching index (g?avg) of 0.9 or more, and a branching index at very high Mw (g?1000) of less than 0.9.

Abstract: The present disclosure provides methods for producing an olefin polymer including: i) contacting alpha-olefin with a first catalyst system comprising a first non-metallocene catalyst, a first activator, and a reversible chain transfer agent to form a first polymer; ii) contacting the first polymer with a coupling agent in the presence of a catalyst, an activator; and iii) obtaining a second polymer. The present disclosure further provides polymers having a g?vis value from about 0.4 to about 0.8 and a vinyl unsaturation content of 0.8 or greater vinyls/1000 carbons, and preferably low gel content.

Abstract: The present disclosure provides borate or aluminate activators comprising cations having branched alkyl groups, catalyst systems comprising, and methods for polymerizing olefins using such activators.

Abstract: This invention relates to organoaluminum compounds, organoaluminum activator systems, preferably supported, to polymerization catalyst systems containing these activator systems and to polymerization processes utilizing the same. In particular, this invention relates to catalyst systems comprising a support, an organoaluminum compound and a metallocene.

Abstract: The present disclosure provides borate or aluminate activators comprising cations having linear alkyl groups, catalyst systems comprising, and methods for polymerizing olefins using such activators.

Abstract: Disclosed are self-assembled propylene-based bi-layer compositions having a skin layer comprising a propylene-based elastomer-toughened composition and a core layer comprising a propylene-based fiber-reinforced composition, wherein the propylene-based elastomer-toughened composition and propylene-based fiber-reinforced composition self-assemble upon mixing into the skin layer and the core layer. Processes for producing these self-assembled propylene-based compositions are also disclosed.

Abstract: The present disclosure provides catalyst systems having a bridged metallocene compound and a transition metal pyridyldiamide compound for use in alkene polymerization to produce multimodal polyolefins, such as multimodal ethylene, propylene, diene monomer copolymers. In some embodiments, the present disclosure provides for polyolefins and processes for producing a polyolefin composition including contacting at least one olefin with a catalyst system of the present disclosure.

Abstract: This invention relates to the use of pyridyldiamido and/or quinolinyldiamido transition metal complexes and catalyst systems with an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent (AVTA), to produce branched ethylene copolymers, preferably ethylene-butene, ethylene-hexene and ethylene-octene copolymers.

Abstract: The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin, ethylene and a diene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted indacenyl group and obtaining a C3-C40 olefin-ethylene-diene terpolymer typically comprising from 1 to 35 mol % of ethylene, from 98.9 to 65 mol % C3-C40 olefin, and, optionally, from 0.1 to 10 mol % diene. Preferably, a propylene-ethylene-ethylidene norbornene is obtained.

Abstract: The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin, ethylene and a diene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted indacenyl group and obtaining a C3-C40 olefin-ethylene-diene terpolymer typically comprising from 30 to 55 mol % ethylene, from 69.09 to 45 mol % C3 to C40 comonomer, and from 0.01 to 7 mol % diene wherein the Tg of the terpolymer is ?28° C. or less. Preferably, a propylene-ethylene-ethylidene norbornene is obtained.

Abstract: The present disclosure provides catalyst compounds represented by Formula (I): where Q is OR13, SR13, NR13R14, PR13R14, or a heterocyclic ring; each R1-14 is independently hydrogen, C1-C40 hydrocarbyl, substituted C1-C40 hydrocarbyl, a heteroatom, or a heteroatom-containing group, or multiple R1-14 are joined together to form a C4-C62 cyclic, heterocyclic, or polycyclic ring structure, or combination(s) thereof; each X1 and X2 is independently C1-C20 hydrocarbyl, substituted C1-C20 hydrocarbyl, a heteroatom, or a heteroatom-containing group, or X1 and X2 join together to form a C4-C62 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.

Abstract: Bottlebrush poly(alpha olefin)s of high carbon number, greater than 12 such as poly(octadecene), are used as a thickener for a synthetic base oil grease lubricant that is based on oligomerized alpha olefin with carbon number from 7 to 12, such as oligo(decene). Dispersion aids are not required in the present lubricants because poly(octadecene) can be dissolved in oligo(decene). The lubricant is a solid grease formed by percolation/network of the poly(octadecene) crystals, at a sufficient concentration, after the crystallization of poly(octadecene), and water resistant having oxidation/high temperature stability.

Abstract: The present disclosure provides the use of quinolinyldiamido transition metal complexes, an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent, to produce long chain branched propylene polymers.

Abstract: In some embodiments, ethylene-propylene random copolymers as viscosity modifiers were synthesized with pyridyldiamido catalyst systems and a chain transfer agent. In some embodiments, the present disclosure provides for ethylene-propylene random copolymers having an ethylene content between about 45 wt % and about 55 wt %. In some embodiments, the ethylene-propylene random copolymer is used as a viscosity modifier in a lubricating composition and a fuel composition.