Abstract: A foamable or foamed article comprising a diene terpolymer, the diene terpolymer comprising (or consisting essentially of) from 0.01 wt % to 10.0 wt % diene derived units, and 1.0 wt % to 20 wt % of C4 to C10 ?-olefin derived units based on the weight of the diene terpolymer, wherein the diene terpolymer: a) has a g?vis of less than 0.90; b) has an Mw within a range of from 100,000 g/mol to 500,000 g/mol; c) has an Mw/Mn within the range of from 3.5 to 12.0; and d) an Mz/Mn of greater than 7.0. Inventive articles comprise a blend of a relatively high density linear polyethylene and the diene terpolymer.

Abstract: Described herein are thermoplastic vulcanizates comprising propylene-based elastomers and methods for producing the same. The thermoplastic vulcanizates comprise rubber, at least 10 wt % of thermoplastic resin, from 1 to 9 wt % of propylene-based elastomer, oil, and at least 5 wt % of one or more fillers. The thermoplastic vulcanizates are made by a method where the propylene-based elastomer is introduced to the extrusion reactor before the curative is introduced to the extrusion reactor.

Abstract: Described herein are thermoplastic vulcanizates comprising propylene-based elastomers and methods for producing the same. The thermoplastic vulcanizates comprise rubber, at least 10 wt % of thermoplastic resin, from 1 to 9 wt % of propylene-based elastomer, oil, and at least 5 wt % of one or more fillers. The thermoplastic vulcanizates are made by a method where the propylene-based elastomer is introduced to the extrusion reactor before the curative is introduced to the extrusion reactor.

Abstract: A foamable or foamed article comprising a diene terpolymer, the diene terpolymer comprising (or consisting essentially of) from 0.01 wt % to 10.0 wt % diene derived units, and 1.0 wt % to 20 wt % of C4 to C10 ?-olefin derived units based on the weight of the diene terpolymer, wherein the diene terpolymer: a) has a g?vis of less than 0.90; b) has an Mw within a range of from 100,000 g/mol to 500,000 g/mol; c) has an Mw/Mn within the range of from 3.5 to 12.0; and d) an Mz/Mn of greater than 7.0. Inventive articles comprise a blend of a relatively high density linear polyethylene and the diene terpolymer.

Abstract: Provided herein is a powder comprising at least one of: (a) a propylene-based elastomer comprising, based on the total weight of said propylene-based elastomer, (i) at least about 60 wt % of propylene-derived units, (ii) about 5 wt % to about 35 wt % of units derived from at least one of ethylene and a C4-C10 alpha-olefin, and said propylene-based elastomer having a heat of fusion, as determined by DSC, of about 75 J/g or less; and (b) a polyolefin-based elastomer having a Shore A hardness, as determined by ISO 868, of less than 95; wherein the powder has an average particle size of from about 30 ?m to about 850 ?m. The powder is useful for rotational molding and for making articles having unique combination of elasticity, flexibility, and toughness.