Abstract: A bimodal ethylene-co-1-hexene copolymer composition consisting of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a melt property performance defined by a combination of melt index (5 kg), melt strength, and, optionally, shear thinning properties, and, when in solid form, is characterized by a slow crack growth property performance defined by a combination of strain hardening modulus and accelerated full-notch creep test performance. A pipe consisting of the bimodal ethylene-co-1-hexene copolymer composition. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer composition. A method of making the pipe. A manufactured article, which is not a pipe, comprising the bimodal ethylene-co-1-hexene copolymer composition.

Abstract: A bimodal ethylene-co-1-hexene copolymer consisting essentially of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by a combination of high-load melt index, melt flow ratio, and melt elasticity properties. A blown film consisting essentially of the bimodal ethylene-co-1-hexene copolymer. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the bimodal ethylene-co-1-hexene copolymer.

Abstract: A method of independently changing a melt rheology property value of a bimodal polyethylene polymer being made using a bimodal catalyst system in a single gas phase polymerization reactor. The method comprises process conditions comprising alkane(s) in the reactor. The method comprises a bimodal catalyst system that is characterized by an inverse response to alkane(s) concentration. The method comprises changing concentration of the alkane(s) in the reactor by an amount sufficient to effect a measurable change in the melt rheology property value; wherein the bimodal catalyst system is characterized by an inverse response to alkane(s) concentration such that when the alkane(s) concentration is increased, the melt rheology property value of the resulting bimodal polyethylene polymer is decreased, and when the alkane(s) concentration is decreased, the melt rheology property value of the resulting bimodal polyethylene polymer is increased.

Abstract: A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.

Abstract: A bimodal polyethylene composition, products made therefrom, methods of making and using same, and articles, including bottle caps and closures, containing same.

Abstract: A bimodal poly(ethylene-co-1-hexene) copolymer composition, methods of making and using, and manufactured articles made therefrom and uses thereof.

Abstract: A bimodal ethylene-co-1-butene copolymer consisting essentially of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by a combination of high-load melt index, melt flow ratio, and melt elasticity properties. A (blown) film consisting essentially of the bimodal ethylene-co-1-butene copolymer and having improved properties. Methods of synthesizing the bimodal ethylene-co-1-butene copolymer and making the blown film. A manufactured article comprising the bimodal ethylene-co-1-butene copolymer.

Abstract: A bimodal copolymer comprises on average at least 90 weight-percent units derived from ethylene and at least 0.05 weight percent units derived from an ?-olefin comonomer having from 4 to 10 carbon atoms, wherein the copolymer has the properties described herein.

Abstract: Embodiments of the present disclosure are directed towards method for modifying a polymer flow index. As an example, a method for modifying a polymer flow index can include providing monomers to a polymerization reactor, providing a chromium catalyst to the polymerization reactor, and providing an active amount of a flow index modifier to the polymerization reactor, wherein the flow index modifier is selected from carbon dioxide, carbon monoxide, 2,4-hexadiene, and combinations thereof.

Abstract: A polymerization catalyst system, a method of using the polymerization catalyst system, and a polymer produced with the catalyst system. The polymerization catalyst system has a non-metallocene catalyst and a metallocene catalyst. The metallocene catalyst has the formula: wherein R1 and R2 are each independently, phenyl, methyl, chloro, fluoro, or a hydrocarbyl group.

Abstract: A method including a) polymerizing at least one monomer in a gas phase reactor in the presence of a supported multimodal catalyst system to form a multimodal polyethylene product having a reactor split equal to respective weight fractions of resin components in the polyethylene product; b) applying a predetermined formula for a product parameter of the multimodal polyethylene product; c) obtaining incorporation data and production rate data from the reaction based upon the predetermined formula; d) determining an actual hydrogen leading indicator; e) comparing the actual hydrogen leading indicator to a target value for a hydrogen leading indicator to determine a deviation of the actual hydrogen leading indicator from the target value; and f) adjusting an amount of a catalyst precursor being fed to the gas phase reactor to control reactor split and a product parameter.

Abstract: A bimodal polyethylene composition made with a bimodal catalyst system, wherein the bimodal polyethylene composition has from greater than 0 to 14 weight percent of polyethylene polymers having a weight-average molecular weight of from greater than 0 to 10,000 grams per mol, products made therefrom, methods of making and using same, and articles containing same.

Abstract: A bimodal ethylene-co-1-hexene copolymer composition consisting of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a melt property performance defined by a combination of melt index (5 kg), melt strength, and, optionally, shear thinning properties, and, when in solid form, is characterized by a slow crack growth property performance defined by a combination of strain hardening modulus and accelerated full-notch creep test performance. A pipe consisting of the bimodal ethylene-co-1-hexene copolymer composition. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer composition. A method of making the pipe. A manufactured article, which is not a pipe, comprising the bimodal ethylene-co-1-hexene copolymer composition.

Abstract: An ethylene/alpha-olefin copolymer that can be synthesized in a fluidized-bed, gas phase polymerization reactor and made into a blown film. The ethylene/alpha-olefin copolymer is characterized by a bubble stability-effective combination of properties comprising density, melt flow ratio (“I21/I5”), and melt storage modulus G? (G?=3,000 Pa). The synthesis in the FB-GPP reactor is characterized by a property-imparting-effective combination of operating conditions comprising reactor bed temperature and H2/C2 gas molar ratio. An embodiment of the blown film consisting of the ethylene/alpha-olefin copolymer is characterized by enhanced bubble stability. A method of making the ethylene/alpha-olefin copolymer. A film comprising the ethylene/alpha-olefin copolymer. A method of making the film. A manufactured article comprising the film.

Abstract: Provided are various bimodal polyethylene, including but not limited to a bimodal polyethylene for a pipe having a density of from 0.9340 to 0.9470 gram/cubic centimeters (g/ccm), a melt index (12) of from 0.1 to 0.7 gram/10 minute, a melt flow ratio (121/12) of from 20 to 90. The bimodal polyethylene includes a high molecular weight polyethylene component and a low molecular weight polyethylene component which are a reaction product of a polymerization process performed in a single reactor and that employs a bimodal polymerization catalyst system. The bimodal polymerization catalyst system includes a bimodal catalyst system of bis(2-pentamethylphenylamido)ethyl)amine Zirconium dibenzyl and either (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)Zirconium dichloride or (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)zirconium dimethyl in a 3.0:1 molar ratio; and a trim catalyst of (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)Zirconium dichloridedimethyl in heptane added to adjust melt.

Abstract: A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.

Abstract: A bimodal ethylene-co-1-hexene copolymer consisting essentially of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by a combination of high-load melt index, melt flow ratio, and melt elasticity properties. A blown film consisting essentially of the bimodal ethylene-co-1-hexene copolymer. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the bimodal ethylene-co-1-hexene copolymer.

Abstract: Embodiments of the present disclosure directed towards bimodal polymerization catalysts. As an example, the present disclosure provides a bimodal polymerization catalyst system including a non-metallocene olefin polymerization catalyst and a zirconocene catalyst of Formula I: (Formula I) where each of R1, R2, and R4 are independently a C1 to C20 alkyl, aryl or aralkyl group or a hydrogen, where R3 is a C1 to C20 alkyl, aryl or aralkyl group, and where each X is independently a halide, C1 to C20 alkyl, aralkyl group or hydrogen.

Abstract: A bimodal ethylene-co-1-butene copolymer consisting essentially of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by a combination of high-load melt index, melt flow ratio, and melt elasticity properties. A (blown) film consisting essentially of the bimodal ethylene-co-1-butene copolymer and having improved properties. Methods of synthesizing the bimodal ethylene-co-1-butene copolymer and making the blown film. A manufactured article comprising the bimodal ethylene-co-1-butene copolymer.

Abstract: Embodiments of the present disclosure directed towards polymerization catalysts having improved ethylene enchainment. As an example, the present disclosure provides a polymerization catalyst having improved ethylene enchainment, the polymerization catalyst comprising a zirconocene catalyst of Formula (I) where R1 is a C1 to C20 alkyl, aryl or aralkyl group, wherein R2 is an C1 to C20 alkyl, aryl or aralkyl group, and where R3 is a C1 to C20 alkyl or a hydrogen, and where each X is independently a halide, C1 to C20 alkyl, aralkyl group or hydrogen.