Abstract: A thermoplastic polymer composition comprises a polyethylene polymer composition and a salt of bicyclo[2.2.1]heptane-2,3-dicarboxylic acid. The polyethylene polymer composition can have a Melt Relaxation Product of 50,000 or less. A method for producing an injection molded article comprises the steps of (a) providing a thermoplastic polymer composition as described above, (b) melting the thermoplastic polymer composition, (c) injecting the molten thermoplastic polymer composition into a mold cavity, (d) cooling the molten thermoplastic polymer composition, and (e) ejecting the injection molded article from the mold cavity. A method for producing a film comprises the steps of (a) providing a thermoplastic polymer composition as described above, (b) melting the thermoplastic polymer composition, (c) extruding the molten thermoplastic polymer composition through a slot-shaped die orifice to form a film, (d) cooling the film, and (e) collecting the film.

Abstract: A thermoplastic polymer composition comprises a polyethylene polymer composition and a salt of bicyclo[2.2.1]heptane-2,3-dicarboxylic acid. The polyethylene polymer composition can have a Melt Relaxation Ratio of 1.5 or greater. A method for molding a thermoplastic polymer composition comprises the steps of (a) providing an apparatus comprising a die and a mold cavity; (b) providing the thermoplastic polymer composition described above; (c) heating the thermoplastic polymer composition to melt the thermoplastic polymer composition; (d) extruding the molten thermoplastic polymer composition through the die to form a parison; (e) capturing the parison in the mold cavity; (f) blowing a pressurized fluid into the parison to inflate the parison and conform it to the interior surface of the mold cavity; (g) allowing the molded article to cool so that the molded article retains its shape; and (h) removing the molded article from the mold cavity.

Abstract: An composition comprises a first component and one or more calcium cis-1,2-cyclohexanedicarboxylate salts. The first component is selected from thermoplastic polymers, waxes, and mixtures thereof. 25 mol. % or more of the calcium cis-1,2-cyclohexanedicarboxylate salts present in the composition are calcium cis-1,2-cyclohexanedicarboxylate monohydrate. A method for producing a polymer composition entails mixing the composition with a polyolefin polymer, melting the resulting admixture, and letting the admixture solidify to produce a polymer composition.

Abstract: An additive composition comprises an antioxidant and one or more calcium cis-1,2-cyclohexanedicarboxylate salts. 25 mol. % or more of the calcium cis-1,2-cyclohexanedicarboxylate salts present in the additive composition are calcium cis-1,2-cyclohexanedicarboxylate monohydrate. A method for producing a thermoplastic polymer composition entails mixing the additive composition with a thermoplastic polymer, melting the resulting admixture, and letting the admixture solidify to produce a polymer composition.

Abstract: A polymer composition comprises a polyethylene polymer having a Melt Relaxation Ratio of 1.5 or greater and a salt of a branched alkyl phosphonic acid. A method for molding a thermoplastic polymer composition comprises the steps of (a) providing an apparatus comprising a die and a mold cavity; (b) providing the polymer composition described above; (c) heating the polymer composition to melt the polymer composition; (d) extruding the molten polymer composition through the die to form a parison; (e) capturing the parison in the mold cavity; (f) blowing a pressurized fluid into the parison to inflate the parison and conform it to the interior surface of the mold cavity; (g) allowing the molded article to cool so that the molded article retains its shape; and (h) removing the molded article from the mold cavity.

Abstract: A polymer composition comprises a polyethylene polymer and a salt of a branched alkyl phosphonic acid. A polyethylene film having improved barrier to water vapor and oxygen comprises a high-density polyethylene polymer having a density of about 930 kg/m3 to about 980 kg/m3 and a salt of a branched alkyl phosphonic acid.

Abstract: A polymer composition comprises a polyethylene polymer having a Melt Relaxation Index of 2 or greater and a salt of a branched alkyl phosphonic acid. A polyethylene film having improved barrier to water vapor and oxygen comprises a high-density polyethylene polymer having a density of about 930 kg/m3 to about 980 kg/m3 and a Melt Relaxation Index of 2 or greater and a salt of a branched alkyl phosphonic acid.

Abstract: A thermoplastic polymer composition comprises a polyethylene polymer composition and a salt of bicyclo[2.2.1]heptane-2,3-dicarboxylic acid. The polyethylene polymer composition can have a Melt Relaxation Product of 50,000 or less. A method for producing an injection molded article comprises the steps of (a) providing a thermoplastic polymer composition as described above, (b) melting the thermoplastic polymer composition, (c) injecting the molten thermoplastic polymer composition into a mold cavity, (d) cooling the molten thermoplastic polymer composition, and (e) ejecting the injection molded article from the mold cavity. A method for producing a film comprises the steps of (a) providing a thermoplastic polymer composition as described above, (b) melting the thermoplastic polymer composition, (c) extruding the molten thermoplastic polymer composition through a slot-shaped die orifice to form a film, (d) cooling the film, and (e) collecting the film.

Abstract: A thermoplastic polymer composition comprises a polyethylene polymer composition and a salt of bicyclo[2.2.1]heptane-2,3-dicarboxylic acid. The polyethylene polymer composition can have a Melt Relaxation Ratio of 1.5 or greater. A method for molding a thermoplastic polymer composition comprises the steps of (a) providing an apparatus comprising a die and a mold cavity; (b) providing the thermoplastic polymer composition described above; (c) heating the thermoplastic polymer composition to melt the thermoplastic polymer composition; (d) extruding the molten thermoplastic polymer composition through the die to form a parison; (e) capturing the parison in the mold cavity; (f) blowing a pressurized fluid into the parison to inflate the parison and conform it to the interior surface of the mold cavity; (g) allowing the molded article to cool so that the molded article retains its shape; and (h) removing the molded article from the mold cavity.

Abstract: A thermoplastic polymer composition comprises a polyethylene polymer composition and a salt of bicyclo[2.2.1]heptane-2,3-dicarboxylic acid. The polyethylene polymer composition can have a Melt Relaxation Index of 2 or greater. A method for molding a thermoplastic polymer composition comprises the steps of (a) providing an apparatus comprising a die with an annular orifice, a means for blowing pressurized fluid into a tube exiting the die orifice, and a means for drawing and collecting the tube; (b) providing the thermoplastic polymer composition described above; (c) heating the thermoplastic polymer composition to melt the thermoplastic polymer composition; (d) extruding the molten thermoplastic polymer composition through the die to form a tube; (e) blowing a pressurized fluid into the tube to inflate the tube while simultaneously drawing it; (f) allowing the film to cool; and (g) collecting the film.

Abstract: An additive composition comprises an antioxidant and one or more calcium cis-1,2-cyclohexanedicarboxylate salts. 25 mol. % or more of the calcium cis-1,2-cyclohexanedicarboxylate salts present in the additive composition are calcium cis-1,2-cyclohexanedicarboxylate monohydrate. A method for producing a thermoplastic polymer composition entails mixing the additive composition with a thermoplastic polymer, melting the resulting admixture, and letting the admixture solidify to produce a polymer composition.

Abstract: An additive composition comprises one or more calcium cis-1,2-cyclohexanedicarboxylate salts. 25 mol. % or more of the calcium cis-1,2-cyclohexanedicarboxylate salts present in the additive composition are calcium cis-1,2-cyclohexanedicarboxylate monohydrate. The additive composition has a gravimetric water content of about 20% or less. A method for producing a thermoplastic polymer composition entails mixing the additive composition with a thermoplastic polymer, melting the resulting admixture, and letting the admixture solidify to produce a polymer composition.

Abstract: An additive composition comprises one or more calcium cis-1,2-cyclohexanedicarboxylate salts. 25 mol. % or more of the calcium cis-1,2-cyclohexanedicarboxylate salts present in the additive composition are calcium cis-1,2-cyclohexanedicarboxylate monohydrate. The additive composition has a gravimetric water content of about 20% or less. A method for producing a thermoplastic polymer composition entails mixing the additive composition with a thermoplastic polymer, melting the resulting admixture, and letting the admixture solidify to produce a polymer composition.