Abstract: A polyolefin-and-polyvinylpyrrolidone formulation comprising (A) an olefin-based (co)polymer, (B) a polyvinylpyrrolidone (co)polymer, and (C) an antioxidant. Also a method of making the composition; a crosslinked polyolefin product made by curing the composition; manufactured articles comprising a shaped form of the inventive formulation or product; and methods of using the inventive formulation, product, or articles.

Abstract: Crosslinkable polymeric compositions for use in, for instance, cable insulation layers, comprise an ethylene-based polymer, an organic peroxide, a crosslinking coagent, and a methyl-radical scavenger comprising at least one derivative of 2, 2, 6, 6-tetramethyl-1-piperidinyloxyl (“TEMPO”), wherein ratio of crosslinking coagent to organic peroxide is less than 1.72:1 on a molar basis. A crosslinked article prepared from a crosslinkable polymeric composition is also disclosed, the crosslinkable polymeric composition comprising, inter alia, a methyl-radical scavenger comprising at least one TEMPO derivative. In addition, a coated conducttor comprising a conductive core and a polymeric layer at least partially surrounding the conductive core is disclosed, wherein at least a portion of the polymeric layer comprises the crosslinked article.

Abstract: This disclosed is an encapsulant film made from a curable composition comprising: (A) a polyolefin polymer; (B) an organic peroxide; (C) a silane coupling agent; and (D) a co-agent comprising a silane compound of formula (I). This further disclosed is a process for preparing said encapsulant film.

Abstract: A composition having a) an ethylene-based copolymer made of units derived from ethylene and units derived from at least one comonomer of Structure I, wherein R is a C1-C2 hydrocarbyl group and R? is a C1-C4 hydrocarbyl group; b) at least one antioxidant; c) from greater than 0 wt % to less than 3 wt % of an organic peroxide, based on the total weight of the composition; d) optionally, at least one co-agent; and e) optionally, at least one tree retardant, wherein the ethylene-based copolymer has a melt temperature (Tm) (° C.) and a comonomer content in moles per 100 grams ethylene-based copolymer (mol/100 g) (comonomer) that satisfies the relationship Tm<?73.022 (comonomer)+109.3.

Abstract: Crosslinkable polymeric compositions for use in, for instance, cable insulation layers, comprise an ethylene-based polymer, an organic peroxide, a crosslinking coagent, and a methyl-radical scavenger comprising at least one derivative of 2, 2, 6, 6-tetramethyl-1-piperidinyloxyl (“TEMPO”), wherein ratio of crosslinking coagent to organic peroxide is less than 1.72:1 on a molar basis. A crosslinked article prepared from a crosslinkable polymeric composition is also disclosed, the crosslinkable polymeric composition comprising, inter alia, a methyl-radical scavenger comprising at least one TEMPO derivative. In addition, a coated conductor comprising a conductive core and a polymeric layer at least partially surrounding the conductive core is disclosed, wherein at least a portion of the polymeric layer comprises the crosslinked article.

Abstract: A composition comprises (A) an ethylene/alpha-olefin/diene interpolymer; (B) a peroxide comprising at least one peroxide bond; and (C) a bis-TEMPO compound having the Structure (I), wherein R1-4 are each independently H or a C1-C6 alkyl group; X is S, O, N, P, Se, a carbonyl group, a carboxyl group, an amide group, an azo group, an imino group, a carbamate group, a peroxy group, a phosphono group, a phosphate group, a sulfonyl group, a sulfinyl group, a sulfonate ester group, a sulfonate ester group, or combinations thereof; Y is a substitute or unsubstituted aliphatic alkyl group or aromatic alkyl group, a heterocyclic group, a siloxane group, an ethylene glycol group, an imide group, or combinations thereof; and n is greater than 1. The ratio of the molar amount of nitroxide groups of component (C) to the molar amount of the peroxide bonds of component (B) is from 0.100:1.000 to 2.000:1.000.

Abstract: A composition is composed of (A) an ethylene/alpha-olefin/diene TEMPO compound having the Structure (I) and (D) a peroxide. The molar ratio of isocyanate groups of Component (B) to the functional groups of Component (C) is from 0.80 to 1.10. A composition is composed of (A) an ethylene/alpha-olefin/diene interpolymer; a second composition comprising a reaction mixture comprising (B) an isocyanate comprising at least two isocyanate groups and (C) a TEMPO compound having the Structure (I) and (D) a peroxide, wherein the molar ratio of isocyanate groups of Component (B) to the functional groups of Component (C) is from 0.80 to 1.10. In Structure I, R1, R2, R3 and R4 are each independently selected from H and C1-C6 alkyl groups and X is a functional group selected from OH and NH2.

Abstract: Semiconductive shield layers for power cable constructions are made from a composition that has: (A) A nonpolar, ethylene-based polymer having a density of greater than (>) 0.90 glee and a melt index of >20 g/10 min at 190° C./2.16 Kg; (B) A polar polymer consisting of ethylene and an unsaturated alkyl ester having 4 to 20 carbon atoms; (C) Acetylene carbon black; and (D) A curing agent; with the provisos that (1) the composition has a phase separated structure, and (2) the weight ratio of nonpolar polymer to polar polymer is from 0.25 to 4.

Abstract: Crosslinkable interpolymer blends comprising ethylene monomer residues, residues of comonomers having carboxylic acid and/or carboxylic acid anhydride functionality, and residues of comonomers having epoxide functionality, a peroxide initiator, and optionally a crosslinking catalyst, which, in embodiments, cure to a gel content of greater than (>) 50 wt % within less than 1.5 minutes at 200˜C, and require little or no degassing after crosslinking.

Abstract: A polyolefin composition comprising a polyolefin polymer, an alkenyl-functional monocyclic organosiloxane, and an organic peroxide; products made therefrom; methods of making and using same; and articles containing same.

Abstract: A polyolefin composition comprising a polyolefin polymer and an alkenyl-functional monocyclic organosiloxane, products made therefrom, methods of making and using same, and articles containing same.

Abstract: An (electron beam)-curable (EBC) formulation comprising an EBC polyolefin compound having a crystallinity of from 0 to less than 50 weight percent (wt %) and/or having a density of 0.930 gram per cubic centimeter (g/cm3) or less; and an alkenyl-functional monocyclic organosiloxane (“silicon-based coagent”). Also included are a cured polyolefin product prepared by electron-beam irradiating the EBC formulation; methods of making and using the EBC formulation or cured polyolefin product; and articles containing or made from the EBC formulation or cured polyolefin product.

Abstract: Processes for making cables and cable cores having a crosslinked insulation layer. The processes comprise (a) providing an initial cable core having a conductor, a first semiconductive layer, an initial insulation layer comprising a crosslinkable polymeric composition, and a second semiconductive layer, and (b) subjecting the initial cable core to a crosslinking process. The crosslinkable polymeric composition comprises an ethylene-based polymer, an organic peroxide, and a polyallyl crosslinking coagent. The polyallyl crosslinking coagent and the organic peroxide are present in amounts sufficient to provide an allyl-to-active oxygen molar ratio of less than 1.2.

Abstract: A family of novel hybrid compounds comprise a hindered phenolic scorch retardant and an allyl isocyanurate cure co-agent. Combining these two functionalities into a single molecule provides a synergy between the allyl isocyanurate and phenolic groups that achieves an improved balance between curing and scorch.

Abstract: A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 ?m in size.

Abstract: A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 ?m in size.

Abstract: Cross-linkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, an optional cross-linking coagent, and an antioxidant. Such cross-linkable polymeric compositions are prepared by imbibing at least a portion of the organic peroxide, the optional cross-linking coagent, and the antioxidant into the ethylene-based polymer. Such cross-linkable polymeric compositions can be employed in forming coated conductors.

Abstract: The present disclosure provides a composition comprising or obtained from a reaction mixture comprising a first propylene-based polymer, an olefin block copolymer, and a cure component. The cure component comprises (i) a second propylene/?-olefin copolymer, (ii) a scorch retardant, and (iii) a crosslinking agent.

Abstract: A composition comprises a) an ethylene-based copolymer comprising units derived from ethylene and units derived from at least one comonomer of Structure I, wherein R is a C1-C2 hydrocarbyl group and R? is a C1-C4 hydrocarbyl group; b) at least one antioxidant; c) from greater than 0 wt % to less than 3 wt % of an organic peroxide, based on the total weight of the composition; d) optionally, at least one co-agent; and e) optionally, at least one tree retardant, wherein the ethylene-based copolymer has a melt temperature (Tm) (° C.) and a comonomer content in moles per 100 grams ethylene-based copolymer (mol/100 g) (comonomer) that satisfies the relationship Tm<?73.022 (comonomer)+109.3.

Abstract: Disclosed are a method of attenuating concentration of acrolein, materials and manufactured articles prepared by the method. The concentration of acrolein is attenuated with an amine.