Abstract: A bimodal polyethylene-based composition that is useful for making under film extrusion conditions a film that beneficially has both decreased water vapor transmission rate and decreased haze. The composition comprises an improved design of the composition of the polyethylene blend of a higher molecular weight polyethylene polymer constituent and a lower molecular weight polyethylene polymer constituent and an effective amount of a nucleating agent. Additional embodiments include a method of making the bimodal polyethylene-based composition, a formulation comprising the bimodal polyethylene-based composition and at least one additive, a method of making a manufactured article from the bimodal polyethylene-based composition or formulation; the manufactured article made thereby, use of the bimodal polyethylene-based composition for protecting a moisture-sensitive material, and a sealed package made therefrom.

Abstract: Embodiments are directed towards thermoplastic compositions comprising: a virgin raw polymer, wherein the virgin raw polymer comprises a hydrogenation-catalyst treated polyethylene and a recycled polyethylene wherein the recycled polyethylene comprises either a first blend of polyethylenes recovered from post-consumer material, a second blend of polyethylenes recovered from pre-consumer material, or a combination of the first and second blends.

Abstract: Embodiments of a thermoplastic composition comprise: from 0.5 wt % to 75.0 wt. % of a PCR comprising a blend of polyethylene recovered from post-consumer material, pre-consumer material, or combinations thereof; and from 25.0 wt. % to 99.5 wt % of virgin bimodal polyethylene.

Abstract: Embodiments are directed towards ethylene/1-hexene copolymers made from ethylene and hexene, wherein the ethyl-CA ene/1-hexene copolymer has a density from 0.850 to 0.940 g/cm3, a melt index (I21) from 0.1 to 50 dg/min, a melt index (I21/I2) ratio less than or equal to 18.5, a Mw(Abs)/Mn(Abs) from 2.0 to 3.5, a Mz(Abs)/Mw(Abs) from 1.7 to 4.5, and a cumulative detector fraction (CDFLS) at a molecular weight of ?1,000,000 g/mol of greater than 100*(0.0536?I21*0.00224)%.

Abstract: The present invention relates to oriented, multilayer polyethylene films. In one aspect, a biaxially oriented, multilayer polyethylene film comprises at least one layer comprising: (1) a polyethylene-based composition that comprises: (a) at least 97% by weight, based on the total weight of the polyethylene-based composition, of a polyethylene composition comprising: (i) from 25 to 37 percent by weight of a first polyethylene fraction having a density in the range of 0.935 to 0.947 g/cm3 and a melt index (I2) of less than 0.1 g/10 minutes; and (ii) from 63 to 75 percent by weight of a second polyethylene fraction; and (b) 20 to 5000 ppm, based on the total weight of the polyethylene-based composition of a nucleating agent, wherein the nucleating agent comprises a calcium salt of 1,2-cyclohexanedicarboxylic acid or sodium 4-[(4-chlorobenzoyl) amino] benzoate; wherein the polyethylene composition has less than 0.

Abstract: Embodiments of the present disclosure are directed to post-consumer recycled (PCR) resin formulations comprising: PCR resin comprising a blend of polyethylene recovered from post-consumer material, pre-consumer material, or combinations thereof; and virgin polyethylene resin formulation, wherein the virgin polyethylene resin formulation comprises: a density from 0.910 to 0.950 g/cc, an improved comonomer content distribution (iCCD) wt. fraction greater than 30 wt. % at a temperature range of 35 to 90° C., and an iCCD wt. fraction greater than 8 wt. % at a temperature range of 99 to 115° C. The PCR resin formulation comprises an overall density of from 0.910 to 0.930 g/cc; an iCCD second elution peak occurring at a temperature greater than 99° C.; an iCCD wt. fraction greater than 6 wt. % at a temperature range of 99 to 115° C.; and an iCCD wt. fraction greater than 60 wt. % at a temperature range of 35 to 90° C.

Abstract: The present invention is directed to polyethylene-based compositions suitable for packaging applications, films, and articles. The polyethylene-based composition according to embodiments disclosed herein includes a polyethylene composition having a first polyethylene fraction and a second polyethylene fraction as well as a calcium salt of 1,2-cyclohexanedicarbodylic acid. The polyethylene-based composition can deliver a balance of properties, including barrier properties, for packaging applications.

Abstract: The present invention relates to oriented, multilayer polyethylene films. In one aspect, a biaxially oriented, multilayer polyethylene film comprises: at least one inner layer comprising: (1) a polyethylene-based composition that comprises: (a) at least 97% by weight, based on the total weight of the polyethylene-based composition, of one or more polyethylenes having a density between 0.926 g/cm3 to 0.970 g/cm3 and a melt index (I2) between 0.1 to 10 g/10 min; (b) 20 to 5000 ppm, based on the total weight of the polyethylene-based composition of a sorbitol acetal derivative comprising the structure of formula (I): wherein R1-R5 comprise the same or different moieties chosen from hydrogen and a C1-C3 alkyl.

Abstract: A bimodal polyethylene-based composition that is useful for making under film extrusion conditions a film that beneficially has both decreased water vapor transmission rate and decreased haze. The composition comprises an improved design of the composition of the polyethylene blend of a higher molecular weight polyethylene polymer constituent and a lower molecular weight polyethylene polymer constituent and an effective amount of a nucleating agent. Additional embodiments include a method of making the bimodal polyethylene-based composition, a formulation comprising the bimodal polyethylene-based composition and at least one additive, a method of making a manufactured article from the bimodal polyethylene-based composition or formulation; the manufactured article made thereby, use of the bimodal polyethylene-based composition for protecting a moisture-sensitive material, and a sealed package made therefrom.

Abstract: A heterogeneous procatalyst includes a preformed heterogeneous procatalyst and a metal-ligand complex. The preformed heterogeneous procatalyst includes a titanium species and a magnesium chloride (MgCl2) support. The metal-ligand complex has a structural formula (L)aM(Y)m(XR2)b, where M is a metal cation; each L is a neutral ligand or (?O); each Y is a halide or (C1-C20)alkyl; each XR2 is an anionic ligand in which X is a heteroatom or a heteroatom-containing functional group and R2 is (C1-C20)hydrocarbyl or (C1-C20) heterohydrocarbyl; n is 0, 1, or 2; m is 0-4; and b is 1-6. The metal-ligand complex is overall charge neutral. The heterogeneous procatalyst exhibits improved average molecular weight capability. A catalyst system includes the heterogeneous procatalyst and a cocatalyst. Processes for producing the heterogeneous procatalyst and processes for producing ethylene-based polymers utilizing the heterogeneous procatalyst are also disclosed.

Abstract: In various embodiments, a bimodal polyethylene may include a high molecular weight component and a low molecular weight component. The bimodal polyethylene may have a density of from 0.933 g/cm3 to 0.960 g/cm3, a melt index (I2) of from 0.3 dg/min to 1.2 dg/min, and a melt flow ratio (MFR21) greater than 70.0. The high molecular weight component may have a density of from 0.917 g/cm3 to 0.929 g/cm3, and a high load melt index (I21) of from 0.85 dg/min to 4.00 dg/min. The bimodal polyethylene may include from 40 wt. % to 60 wt % of the high molecular weight component. Methods for producing the bimodal polyethylene and articles manufactured from the bimodal polyethylene are also provided.

Abstract: A polymeric composition includes a resin including an ethylene-based polymer and a copolymer of ethylene and an alpha olefin comonomer. The resin has a High Mw Comonomer Content of 3.2 wt % or greater based on a total weight of the resin over the weight average molecular weight range of 105 g/mol to 105.5 g/mol as measured by Ethylene GPC. The polymeric composition has a Relevant Comonomer Content of 0.6 wt % or greater. The polymeric composition also includes at least one of (i) a polydimethylsiloxane having a weight average molecular weight of 550,000 g/mol to 650,000 g/mol as measured according to Component GPC and (ii) a polymeric ultraviolet light stabilizer comprising a hindered amine moiety and having a weight average molecular weight from 5,000 g/mol to 20,000 g/mol as measured according to Component GPC.

Abstract: A heterogeneous procatalyst includes a titanium species, a magnesium chloride component, and a chlorinating agent having a structure A(Cl)x(R1)3-x, where A is aluminum or boron, R1 is a (C1-C30) hydrocarbyl, and x is 1, 2, or 3. The magnesium chloride component may be thermally treated at a temperature greater than 100 C for at least 30 minutes before or after introduction of the chlorinating agent and titanium species to the heterogeneous procatalyst. The heterogeneous procatalyst having the thermally treated magnesium chloride exhibits improved average molecular weight capability. Processes for producing the heterogeneous procatalyst and processes for producing ethylene-based polymers utilizing the heterogeneous procatalyst are also disclosed.

Abstract: According to various embodiments, a microcellular foam is provided, wherein the microcellular foam comprises a polymer blend, the polymer blend comprising: from 70 to 95% by weight low density polyethylene (LDPE); and from 5 to 30% by weight of polydimethylsiloxane grafted LDPE (PDMS-g-LDPE), wherein the microcellular foam has an average cell size of less than 60 ?m.

Abstract: In various embodiments, a bimodal polyethylene may include a high molecular weight component and a low molecular weight component. The bimodal polyethylene may have a density of from 0.933 grams per centimeter (g/cm3) to 0.960 g/cm3, a melt index (I2) of from 0.3 decigrams per minute (dg/min) to 1.2 dg/min, a melt flow ratio (MFR21) greater than 80.0, a molecular weight distribution (Mw/Mn) greater than 10, a reverse comonomer distribution, and a shear thinning index of from 5.0 to 20.0. Methods for producing the bimodal polyethylene, articles manufactured from the bimodal polyethylene are also provided.

Abstract: In various embodiments, a thermoplastic composition may comprise from 0.5 wt. % to 75.0 wt. % of recycled polyethylene comprising a blend of polyethylene recovered from post-consumer material, pre-consumer material, or combinations thereof, and from 25.0 wt. % to 99.5 wt. % of virgin raw polyethylene comprising unimodal polyethylene, bimodal polyethylene, or combinations thereof, wherein at least 90.0 wt. % of the thermoplastic composition is comprised of the post-consumer recycled polyethylene and the virgin raw polyethylene. Manufactured articles made from the thermoplastic composition, such as coated conductors, are also provided.

Abstract: A polymeric composition includes (i) a copolymer of ethylene and an alpha olefin comonomer, the copolymer having a density of 0.945 g/cc to 0.960 g/cc, (ii) an ethylene-based polymer, and (iii) polyethylene glycol. The combination of (i) and (ii) has a High Mw Comonomer Content of 3.2 wt % or greater based on a total weight of the combined (i) and (ii) over the weight average molecular weight range of 105 g/mol to 105.5 g/mol as measured by GPC, wherein 15 wt % or greater of the total weight of the polymeric composition is the combined (i) and (ii) having a molecular weight in the range of 105 g/mol to 105.5 g/mol as measured by GPC, wherein the polymeric composition has a Relevant Comonomer Content of 0.6 wt % or greater and wherein the polymeric composition has a density of 0.945 g/cc or greater as measured according to ASTM D792.

Abstract: A method for preparing a heterogeneous catalyst. The method comprises steps of: (a) combining (i) a support, (ii) an aqueous solution of a noble metal compound and (iii) a C2-C18 thiol comprising at least one hydroxyl or carboxylic acid substituent; to form a wet particle and (b) removing water from the wet particle by drying followed by calcination to produce the catalyst.

Abstract: The catalyst system includes a heterogeneous procatalyst and a hydrogenation procatalyst. The heterogeneous procatalyst includes a titanium species, an aluminum species, and a magnesium chloride component. The hydrogenation procatalyst has the formula Cp2TiX2, In formula Cp2TiX2, each Cp is a cyclopentadienyl substituted with at least one R1, wherein R1 is (C1-C10)alkyl; and each X is independently a halogen atom.

Abstract: A low density polyethylene (LDPE) having a z-average molecular weight Mz (cony) from 425,000 g/mol to 800,000 g/mol, a melt index I2 less than or equal to 0.20 g/10 min, and a conventional GPC Mw/Mn from 8.0 to 10.6. A LDPE having a GPC-light scattering parameter (LSP) less than 2.00, a ratio of viscosity measured at 0.1 radians/second and 190° C. to a viscosity measured at 100 radians/second and 190° C. that is greater than 50, and a z-average molecular weight Mz (cony) from 425,000 g/mol to 800,000 g/mol.