Abstract: Coated conductors comprising a conductive core at least partially surrounded by a polymeric coating. The polymeric coating comprises an ?-olefin based polymer and an ?-olefin block composite. The ?-olefin block composite comprises block copolymers having hard segments and soft segments.

Abstract: A dielectric fluid composition for electrical apparatus comprises a functionalized 12-hydroxy stearic acid having desirable properties including a pour point less than ?30° C. and a fire point greater than 250° C. It may be prepared by a process wherein 12-hydroxy methyl stearate is transesterified by reaction with a C3-C20 alcohol to form an alkyl-12-hydroxy stearate, followed by esterification thereof with a linear or branched C4-C20 carboxylic acid. This acid may be a free acid chloride, a fatty acid, a carboxylic acid anhydride, or combination thereof. The resulting functionalized 12-hydroxy stearic acid exhibits improved thermoxidative capability, low temperature flowability, and increased fire point.

Abstract: Strippable semiconductive shields comprise a composition comprising in weight percent (wt %) based on the weight of the composition: (A) 20 to 80% of an interpolymer of an olefin and an ?,?-unsaturated carbonyl comonomer, (B) 1 to 90% chlorinated polyolefin, (C) 20 to 45% carbon black, (D) 0.1 to 5% antioxidant, (E) 0.01 to 5% acid scavenger stabilizer; (F) Optionally free radical initiator, (G) Optionally silane functionality, (H) Optionally a sulfur-containing curative, and (I) Optionally a radiation-cure catalyst.

Abstract: The present invention generally relates to a dielectric composition which is a poly-?-olefin or poly(co-ethylene-?-ol-efin) having a backbone weight average molecular weight less than 10,000 daltons. The dielectric composition uses a metal-ligand complex as a precatalyst and exhibits a hyperbranched structure that enables low viscosity, and therefore good flow characteristics, combined with high fire point due to ability to increase molecular weight via branching rather than backbone growth. Other desirable properties include lowered pour point due to crystallization disruption, and desirable thermal oxidative stability.

Abstract: The present disclosure is directed to a dielectric fluid comprising a farnesene-based oligomer and an antioxidant and devices containing the dielectric fluid.

Abstract: A dielectric fluid composition for electrical apparatus comprises a functionalized methyl-12-carboxy methyl stearate having desirable properties including a pour point less than ?30° C. and a fire point greater than 250° C. It may be prepared by a process wherein methyl-12-hydroxy methyl stearate is transesterified by reaction with a C3-C20 alcohol to form the hydroxy methyl ester, followed by reaction with a linear or branched C4-C20 carboxylic acid selected from free acid chlorides, fatty acids, carboxylic acid anhydrides, and combinations thereof. The second step serves to end-cap the hydroxyl groups, thereby producing the functionalized methyl-12-carboxy methyl stearate compound that exhibits improved thermoxidative stability and low temperature flowability, as well as increased fire point.

Abstract: The disclosure is directed to a thermally-stable dielectric fluid. The dielectric fluid includes (a) an oil, (b) a substituted, hindered phenolic antioxidant having at least two substituted cresol groups being covalently bonded to each other through a methylene bridge, and (c) a substituted, diphenyl amine antioxidant having at least two substituted phenyl groups being covalently bonded to each other through an amine bridge.

Abstract: The present disclosure provides a dielectric fluid composed of a genetically engineered microbial oil (GEMO) and an antioxidant. The GEMO includes a triglyceride and an amount of small glyceride. The amount of small glyceride is within a range from 0.1 wt % to 30 wt %, based upon the GEMO weight.

Abstract: The disclosure is directed to a dielectric fluid. The dielectric fluid includes an algae oil. The algae oil includes a natural algae antioxidant. The natural algae antioxidant is selected from ?-carotene, astaxanthin, tocopherol, polyunsaturated triglycerides, and combinations thereof.

Abstract: The method of manufacturing a natural ester, oil-based electrical insulation fluid by contacting refined, bleached, optionally winterized, and deodorized natural ester oil, e.g., soy oil, with an absorbent is improved by using as the absorbent a synthetic silicate absorbent comprising an alkali and/or alkaline earth metal, e.g., magnesium.

Abstract: The disclosure is directed to a thermally-stable dielectric fluid. The dielectric fluid includes (a) an oil, (b) a substituted, hindered phenolic antioxidant having at least two substituted cresol groups being covalently bonded to each other through a methylene bridge, and (c) a substituted, diphenyl amine antioxidant having at least two substituted phenyl groups being covalently bonded to each other through an amine bridge.

Abstract: Plasticizers are made from oil with a narrowed, fatty acid polydispersity and extracted from a microorganism, such as a natural or genetically modified bacterium or algae. These plasticizers can comprise either a large content of either saturated C4 and/or C6 triglycerides or unsaturated C12 or greater triglycerides that have been chemically modified by one or more of epoxidation, acylation and esterification. The plasticizers of this invention are particularly well-suited for use with polar polymeric resins such as PVC.

Abstract: Strippable semiconductive shields comprise a composition comprising in weight percent (wt %) based on the weight of the composition: (A) 20 to 80% of an interpolymer of an olefin and an ?,?-unsaturated carbonyl comonomer, (B) 1 to 90% chlorinated polyolefin, (C) 20 to 45% carbon black, (D) 0.1 to 5% antioxidant, (E) 0.01 to 5% acid scavenger stabilizer; (F) Optionally free radical initiator, (G) Optionally silane functionality, (H) Optionally a sulfur-containing curative, and (I) Optionally a radiation-cure catalyst.

Abstract: The disclosure is directed to a dielectric fluid. The dielectric fluid includes an algae oil. The algae oil includes a natural algae antioxidant. The natural algae antioxidant is selected from ?-carotene, astaxanthin, tocopherol, polyunsaturated triglycerides, and combinations thereof.

Abstract: The polymer composition is a flame retardant composition comprising an organic polymer and nanographene. Suitable organic polymers include polymers such as polyolefins and polyvinyl chloride. Preferably, the nanographene should have an aspect ratio greater than equal to about 1000:1, should have a surface area greater than or equal to about 100 m2/gram nitrogen surface absorption area, and be expanded.

Abstract: A cable comprising one or more electrical conductors or communications media or a core of two or more electrical conductors or communications media, each electrical conductor, communications medium, or core being surrounded by a layer comprising: (a) polyethylene; polypropylene; or mixtures thereof; (b) carbon nanotubes; (c) a conductive carbon black other than carbon nanotubes; and (d) optionally, a copolymer of acrylonitrile and butadiene wherein the acrylonitrile is present in an amount of about 30 to about 60 percent by weight based on the weight of the copolymer or a silicone rubber.

Abstract: Compositions comprising a polyolefin polymer and an expanded graphite exhibit uniform conductivity over a broad range of temperature. In one embodiment, the polyolefin polymer is polypropylene or polyethylene homopolymer or a polypropylene or polyethylene copolymer. The compositions provide uniform conductivity and can be used as a conductive formulation for medium and high voltage cable components.

Abstract: The present invention is a cable having (a) one or more electrical conductors or a core of one or more electrical conductors and (b) each conductor or core being surrounded by a layer of insulation. The insulation layer is prepared from a composition comprising a polyolefin and a 3-dimensional, cage-structured nanoparticle. The preferred polyolefins are polyethylene polymers, and the preferred nanoparticles are polyhedral oligomeric silsesquioxanes (POSS), polyhedral oligomeric silicates (POS), or polyhedral oligomeric siloxanes.

Abstract: A polymer composite is made from or containing: (i) a phase I material consisting essentially of a polar copolymer of ethylene and an unsaturated ester having 4 to 20 carbon atoms; (ii) a phase II material consisting essentially of a nonpolar, low density polyethylene; and (iii) a conducting filler material dispersed in the phase I material and/or the phase II material in an amount sufficient to be equal to or greater than the amount required to generate a continuous conducting network in the phase I and phase II materials. Articles are made from the polymer composite.

Abstract: The present invention is a polymer composite made from or containing: (i) a phase I material consisting essentially of a polar copolymer of ethylene and an unsaturated ester having 4 to 20 carbon atoms; (ii) a phase II material consisting essentially of a nonpolar, low density polyethylene; and (iii) a conducting filler material dispersed in the phase I material and/or the phase II material in an amount sufficient to be equal to or greater than the amount required to generate a continuous conducting network in the phase I and phase II materials. The invention also includes articles made from the polymer composite.