Abstract: An additive composition comprises a calcium salt of rel-(1R,2S)-cyclohexane-1,2-dicarboxylic acid, a zinc salt of a saturated C14-C20 alkyl carboxylic acid, and a layered double hydroxide mineral. A polymer composition comprises a polypropylene polymer and the additive composition described above.

Abstract: A method of making a molded article comprises the steps of (a) melt mixing a mixture to produce a molten polymer composition, (b) injecting the molten polymer composition into a mold for an article, (c) allowing the molten polymer composition to cool until the molten polymer composition has solidified and formed the molded article; and (d) removing the molded article from the mold.

Abstract: A polymer composition comprises a polyolefin polymer and a salt of cyclopentylphosphonic acid. The polyolefin polymer can be a polypropylene polymer or a polyethylene polymer. The polymer composition exhibits fast crystallization rates, making it suitable for use in the production of thin articles with low haze levels. Polymer compositions containing a polyethylene polymer can exhibit preferential transverse direction crystalline lamellae growth, which is a desirable orientation in films and circular, center-gated injection molded parts.

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: 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: A process for making a high purity salt comprises the steps of providing an organic compound, providing a metal salt, adding the metal salt and organic compound to an aqueous medium, heating the reaction mixture to react the organic compound and the metal salt to form an organic salt, collecting the organic salt, and directly contacting the collected organic salt with a heated gas stream while agitating the collected organic salt to reduce the moisture content of the dried organic salt to about 7% or less.

Abstract: A process for making a high purity salt comprises the steps of providing an organic compound, providing a metal salt, adding the metal salt and organic compound to an aqueous medium, heating the reaction mixture to react the organic compound and the metal salt to form an organic salt, collecting the organic salt, exposing the collected organic salt to microwave radiation, and exposing the collected organic salt to infrared radiation.

Abstract: A process for making a high purity salt comprises the steps of providing an organic compound, providing a metal salt, adding the metal salt and organic compound to an aqueous medium, heating the reaction mixture to react the organic compound and the metal salt to form an organic salt, collecting the organic salt, exposing the collected organic salt to microwave radiation, and exposing the collected organic salt to infrared radiation.

Abstract: An additive composition comprises one or more calcium cis-1,2-cyclohexanedicarboxylate salts. The calcium 1,2-cyclohexanedicarboxylate salts have a BET specific surface area of 20 m2/g or more. 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: A polyethylene article comprises crystalline polyethylene in an orthorhombic unit cell. The b-axes of the crystalline polyethylene are substantially aligned with the machine direction of the article. In particular, the Herman's index of the b-axes in the machine direction is greater than zero and greater than the Herman's indices of the b-axes in both the transverse and normal directions. The unique physical attributes exhibited by a polyethylene article having this new morphology are also described.

Abstract: The invention provides a thermoplastic polymer composition comprising a polyolefin polymer and a nucleating agent. The nucleating agent comprises a compound conforming to the structure of Formula (I) The invention also provides a series of compounds encompassed by the structure of Formula (I).

Abstract: The invention provides a compound conforming to the structure of Formula (CX) The invention also provides a thermoplastic polymer composition comprising a polyolefin polymer and a compound conforming to the structure of Formula (CX) as a nucleating agent.

Abstract: The invention provides a compound conforming to the structure of Formula (CXX) The invention also provides a thermoplastic polymer composition comprising a polyolefin polymer and a compound conforming to the structure of Formula (CXX) as a nucleating agent.

Abstract: The invention provides a thermoplastic polymer composition comprising a polyolefin polymer and a nucleating agent. The nucleating agent comprises a compound conforming to the structure of Formula (I) The invention also provides a series of compounds encompassed by the structure of Formula (I).

Abstract: A polyethylene article comprises crystalline polyethylene in an orthorhombic unit cell. The b-axes of the crystalline polyethylene are substantially aligned with the machine direction of the article. In particular, the Herman's index of the b-axes in the machine direction is greater than zero and greater than the Herman's indices of the b-axes in both the transverse and normal directions. The unique physical attributes exhibited by a polyethylene article having this new morphology are also described.

Abstract: The invention provides a compound conforming to the structure of Formula (CX) The invention also provides a thermoplastic polymer composition comprising a polyolefin polymer and a compound conforming to the structure of Formula (CX) as a nucleating agent.

Abstract: The invention provides a compound conforming to the structure of Formula (CXX) The invention also provides a thermoplastic polymer composition comprising a polyolefin polymer and a compound conforming to the structure of Formula (CXX) as a nucleating agent.