Peroxide-crosslinkable compositions and processes for their manufacture

A peroxide-crosslinkable composition comprising: (A) A peroxide-crosslinkable polymer, e.g., a polyethylene; (B) A nitrogenous base, e.g., a low molecular weight, or low melting, or liquid nitrogenous base such as triallyl cyanurate (TAC); and (C) One or more antioxidants (AO), e.g., distearylthiodipropionate (DSTDP). The composition is useful in the manufacture of insulation sheaths for high and extra high voltage wire and cable.

ELASTOMER-BASED POLYMERIC COMPOSITIONS HAVING AMORPHOUS SILICA FILLERS

Polymeric compositions suitable for use as insulation materials in electrical applications. Such polymeric compositions comprise an ethylene/α-olefin-based elastomer and a filler, where the filler consists essentially of an amorphous silica. Such polymeric compositions can optionally further comprise an ethylene-based thermoplastic polymer. Also disclosed are coated conductors comprising such polymeric compositions as insulation materials. 1. A polymeric composition for use in coated conductors , said polymeric composition comprising:(a) an ethylene/α-olefin-based elastomer; and(b) a filler,wherein said filler consists essentially of an amorphous silica, and wherein said filler is present in an amount ranging from 10 to 32 weight percent, based on the entire polymeric composition weight, wherein said amorphous silica is solid at 22° C. and standard atmospheric pressure, wherein the amorphous silica is selected from the group consisting of silica aerogels, fumed silica, and combinations thereof, wherein the fumed silica is treated with a surface treatment.2. The polymeric composition of claim 1 , wherein said amorphous silica is selected from the group consisting of silica gels claim 1 , silica aerogels claim 1 , fumed silica claim 1 , and combinations thereof.3. The polymeric composition of claim 1 , wherein said ethylene/α-olefin-based elastomer is selected from the group consisting of an ethylene/propylene copolymer claim 1 , ethylene/α-butene copolymer claim 1 , an ethylene/α-hexene copolymer claim 1 , an ethylene/α-octene copolymer claim 1 , an ethylene-propylene-diene monomer (“EPDM”) claim 1 , and combinations of two or more thereof.4. The polymeric composition of claim 1 , wherein said ethylene/α-olefin-based elastomer is an EPDM polymer.5. The polymeric composition of claim 1 , wherein said ethylene/α-olefin-based elastomer is present in an amount ranging from 40 to 98 weight percent claim 1 , based on the entire polymeric composition weight.6. The polymeric ...

CROSSLINKABLE POLYMERIC COMPOSITIONS WITH AMINE-FUNCTIONALIZED INTERPOLYMERS, METHODS FOR MAKING THE SAME, AND ARTICLES MADE THEREFROM

Crosslinkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, and an amine-functionalized interpolymer. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables. 1. A crosslinkable polymeric composition , comprising:(a) an ethylene-based polymer;(b) an organic peroxide; and(c) an amine-functionalized interpolymer having incorporated therein at least one type of amine-containing monomer.2. The crosslinkable polymeric composition of claim 1 , wherein said amine-functionalized interpolymer comprises an ethylene/aminoacrylate copolymer.3. The crosslinkable polymeric composition of claim 2 , wherein said ethylene/aminoacrylate copolymer comprises a copolymer of low-density polyethylene copolymerized or grafted with an aminoacrylate monomer selected from the group consisting of 2-(diethylamino)ethyl methacrylate claim 2 , 2-(dimethylamino)ethyl methacrylate claim 2 , 2-(t-butylamino)ethyl methacrylate claim 2 , and mixtures of two or more thereof.4. The crosslinkable polymeric composition of claim 1 , wherein said amine-functionalized interpolymer is present in an amount sufficient to result in a molar amine content in the range of from 0.1 to 200 micromoles of amine per gram of said crosslinkable polymeric composition.5. The crosslinkable polymeric composition of claim 1 , further comprising at least one acidic component.6. The crosslinkable polymeric composition of claim 5 , further comprising an antioxidant claim 5 , wherein said antioxidant is the source of said acidic component.7. The crosslinkable polymeric composition of claim 1 , wherein said ethylene-based polymer is present in an amount ranging from 50 to 99 weight percent claim 1 , based on the entire crosslinkable polymeric composition weight; wherein said organic peroxide is present in an amount ranging from 0.1 to 5 weight percent claim 1 , based on the entire ...

Elastomer-based polymeric compositions having amorphous silica fillers

Polymeric compositions suitable for use as insulation materials in electrical applications. Such polymeric compositions comprise an ethylene/α-olefin-based elastomer and a filler, where the filler consists essentially of an amorphous silica. Such polymeric compositions can optionally further comprise an ethylene-based thermoplastic polymer. Also disclosed are coated conductors comprising such polymeric compositions as insulation materials.

STABILIZED MOISTURE-CURABLE POLYMERIC COMPOSITIONS

Silane-crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an acidic silanol condensation catalyst, a phenolic antioxidant, and an ester-functionalized thioether. Such crosslinkable polymeric compositions can be employed in various articles of manufacture, such as in the wire and cable industry. 1. A silane-crosslinkable polymeric composition , comprising:a polyolefin having hydrolyzable silane groups;an acidic silanol condensation catalyst;a phenolic antioxidant having no tertiary-alkyl-substituted aryl or phenolic groups; andan ester-functionalized thioether.4. The composition of claim 3 , wherein said ester-functionalized thioether is selected from the group consisting of distearyl thiodipropionate claim 3 , dilauryl thiodipropionate claim 3 , pentaerythritol tetrakis(β-laurylthiopropionate) claim 3 , thiobis-[2-tert-butyl-5-methyl-4 claim 3 ,1-phenylene] bis [3-(dodecylthio)propionate] claim 3 , and combinations of two or more thereof.6. The composition of claim 5 , wherein said phenolic antioxidant is selected from the group consisting of 2 claim 5 ,2′-isobutylidene bis(4 claim 5 ,6-dimethyl-phenol); 2 claim 5 ,4-dimethyl-6-(1-methylpentadecyl)phenol; 2 claim 5 ,2′-methylenebis(6-nonyl-p-cresol); 2 claim 5 ,2′-(2-methylpropylidene)bis[4-methyl-6-(1-methylethyl)]phenol; 2 claim 5 ,2′-Methylenebis(6-cyclohexyl-p-cresol); and mixtures of two or more thereof.7. The composition of claim 1 , wherein said polyolefin having hydrolyzable silane groups is selected from the group consisting of (i) an interpolymer of ethylene and a hydrolyzable silane claim 1 , (ii) an interpolymer of ethylene claim 1 , one or more Cor higher α-olefins and/or unsaturated esters claim 1 , and a hydrolyzable silane claim 1 , (iii) a homopolymer of ethylene having a hydrolyzable silane grafted to its backbone claim 1 , and (iv) an interpolymer of ethylene and one or more Cor higher α-olefins and/or unsaturated esters claim 1 , such interpolymer ...

STABILIZED MOISTURE-CURABLE POLYMERIC COMPOSITIONS

Silane-crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an acidic silanol condensation catalyst, and a phenolic antioxidant having at least one ester-containing moiety. Such crosslinkable polymeric compositions can be employed in various articles of manufacture, such as in the wire and cable industry. 1. A silane-crosslinkable polymeric composition , comprising:a polyolefin having hydrolyzable silane groups;an acidic silanol condensation catalyst; anda phenolic antioxidant having at least one ester-containing moiety.3. The composition of claim 2 , wherein said phenolic antioxidant having at least one ester-containing moiety is selected from the group consisting of resorcinol monobenzoate (CAS 136-36-7) claim 2 , 3 claim 2 ,5-dihydroxyphenyl benzoate (CAS 62191-56-4) claim 2 , phenyl-3-hydroxybenzoate (CAS 24262-63-3) claim 2 , 3-hydroxy-5-methylphenyl benzoate (CAS 848130-90-5) claim 2 , orcinol dibenzoate (CAS 104311-36-6) claim 2 , 3-hydroxyphenyl 2 claim 2 ,4-dihydroxybenzoate (CAS 108963-86-6) claim 2 , phenethyl 3-hydroxybenzoate (CAS 99287-97-5) claim 2 , and mixtures of two or more thereof.6. The composition of claim 5 , wherein said ester-functionalized thioether is selected from the group consisting of distearyl thiodipropionate claim 5 , dilauryl thiodipropionate claim 5 , pentaerythritol tetrakis(β-laurylthiopropionate) claim 5 , thiobis-[2-tert-butyl-5-methyl-4 claim 5 ,1-phenylene] bis [3-(dodecylthio)propionate] claim 5 , and combinations of two or more thereof.7. The composition of claim 1 , wherein said polyolefin having hydrolyzable silane groups is selected from the group consisting of (i) an interpolymer of ethylene and a hydrolyzable silane claim 1 , (ii) an interpolymer of ethylene claim 1 , one or more Cor higher α-olefins and/or unsaturated esters claim 1 , and a hydrolyzable silane claim 1 , (iii) a homopolymer of ethylene having a hydrolyzable silane grafted to its backbone claim 1 , and (iv) an ...

Power cable with a thick insulation layer and a method for its manufacture

A power cable comprising a: (A) Conductor, (B) First semiconductor in contact with the conductor; (C) First insulation layer in contact with the first semiconductor; (D) Second semiconductor layer in contact with the first insulation layer; (E) Third semiconductor layer in contact with the second semiconductor layer; (F) Second insulation layer in contact with the third semiconductor layer; and (G) Fourth semiconductor layer in contact with the second insulation layer.

Coated Conductor with Voltage Stabilized Inner Layer

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent contains a triazine. The triazine may include a substituent that enables keto-enol tautomerism, which provides the voltage stabilizing agent with additional energy dissipation capacity. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable. 2. The coated conductor of wherein the polyolefin is a polyethylene.3. The coated conductor of wherein the polyolefin is a crosslinked polyethylene.4. The polymeric composition of wherein at least one of R-Ris a C-Chydrocarbyl group.5. The polymeric composition of wherein at least one of R-Ris a substituted C-Chydrocarbyl group.6. The coated conductor of wherein at least one of R-Rcomprises an aryl group.7. The coated conductor of wherein each of R-Rcomprises an aryl group.8. The polymeric composition of comprising from about 0.1 wt % to about 3 wt % of the triazine.9. The coated conductor of wherein the coated conductor is selected from the group consisting of a medium voltage power cable claim 1 , a high voltage power cable claim 1 , and an extra high voltage power cable.10. The coated conductor of wherein the inner layer is an insulating layer.11. The coated conductor of wherein the inner layer is a shielding layer. A typical power cable includes one or more conductors in a cable core surrounded by one or more layers of polymeric material. Medium voltage (6 to 36 kV) and high voltage (greater than 36 kV) and extra high voltage (greater than 220 kV) cable typically include a core surrounded by an inner semiconducting layer, followed by an insulating layer, and then an outer semiconducting layer, and an outermost layer (or sheath).The load-carrying capacity of a cable system is limited, in part, by the heat transfer away from the conductor. Polyolefins, such as polyethylene, are ...

Polymeric Compositions with Voltage Stabilizer Additive

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent is a diphenoxybenzene and/or a benzanilide. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable. 2. The polymeric composition of wherein the polyolefin is a polyethylene.3. The polymeric composition of wherein the polyolefin is a crosslinked polyethylene.4. The polymeric composition of wherein at least one of R-Ris a C-Chydrocarbyl group.5. The polymeric composition of wherein each of R-Ris hydrogen.6. The polymeric composition of comprising from about 0.1 wt % to about 3 wt % of the diphenoxybenzene.8. The polymeric composition of wherein the polyolefin is a polyethylene.9. The polymeric composition of wherein the polyolefin is a crosslinked polyethylene.10. The polymeric composition of wherein at least one of R-Ris a C-Chydrocarbyl group.11. The polymeric composition of wherein each of R-Ris hydrogen.12. The polymeric composition of comprising from about 0.1 wt % to about 3 wt % of the benzanilide.13. A coated conductor comprising:a conductor; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a coating on the conductor, the coating comprising the polymeric composition of .'}14. The coated conductor of wherein the coating is an insulating layer.15. The coated conductor of wherein the coating is a shielding layer.16. A coated conductor comprising:a conductor; and{'claim-ref': {'@idref': 'CLM-00007', 'claim 7'}, 'a coating on the conductor, the coating comprising the polymeric composition of .'}17. The coated conductor of wherein the coating is an insulating layer.18. The coated conductor of wherein the coating is a shielding layer. A typical power cable includes one or more conductors in a cable core surrounded by one or more layers of polymeric material. Medium voltage (6 to 36 kV) and high voltage (higher than ...

Composite of non-polar organic polymer and ultra-low-wettability carbon black

A semiconductive composite material consisting essentially of a non-polar organic polymer and an electrical conducting effective amount of an ultra-low-wettability carbon black. Also a method of making the composite material; a crosslinked polyethylene product made by curing the composite material; manufactured articles comprising a shaped form of the inventive composite material or product; and methods of using the inventive composite material, product, or articles.

COMPOSITE OF POLAR ORGANIC POLYMER AND ULTRA-LOW-WETTABILITY CARBON BLACK

A semiconductive composite material consisting essentially of a polar organic copolymer and an electrical conducting effective amount of an ultra-low-wettability carbon black. Also a method of making the composite material; a crosslinked polyethylene product made by curing the composite material; manufactured articles comprising a shaped form of the inventive composite material or product; and methods of using the inventive composite material, product, or articles. 1. A semiconductive composite material consisting essentially of (A) a polar ethylene-based copolymer and an electrical conducting effective amount of (B) an ultra-low-wettability carbon black (ULW-CB) , which has a Brunauer-Emmett-Teller (BET) nitrogen surface area of from 35 to 190 square meters per gram (m/g) , measured by BET Nitrogen Surface Area Test Method; and an oil absorption number (OAN) from 115 to 180 milliliters of oil per 100 grams (mL/100 g) , measured by Oil Absorption Number Test Method; and a water uptake of from 400 to 2400 parts per million (ppm , weight) , measured by Moisture Uptake Test Method.2. The semiconductive composite material of wherein the (B) ULW-CB is characterized by any one of limitations (i) to (iii): (i) the (B) ULW-CB has a BET nitrogen surface area from 40 to 63 m/g claim 1 , measured by the BET Nitrogen Surface Area Test Method; and an OAN from 120 to 150 mL/100 g claim 1 , measured by the Oil Absorption Number Test Method; (ii) the (B) ULW-CB has a BET nitrogen surface area from 120 to 180 m/g claim 1 , measured by the BET Nitrogen Surface Area Test Method; and an OAN from 150 to 175 mL/100 g claim 1 , measured by the Oil Absorption Number Test Method; and (iii) the (B) ULW-CB is a blend of the ULW-CBs of (i) and (ii).3. A semiconductive composite material consisting essentially of (A) a polar ethylene-based copolymer and an electrical conducting effective amount of (B) an ultra-low-wettability carbon black (ULW-CB) claim 1 , which has a surface wettability ...

COMPOSITE OF NON-POLAR ORGANIC POLYMER, POLAR ORGANIC POLYMER, AND ULTRA-LOW-WETTABILITY CARBON BLACK

A semiconductive composite material comprising a non-polar organic polymer, a polar organic copolymer, and an electrical conducting effective amount of an ultra-low-wettability carbon black. Also a method of making the composite material; a crosslinked polyethylene product made by curing the composite material; manufactured articles comprising a shaped form of the inventive composite material or product; and methods of using the inventive composite material, product, or articles. 1. A semiconductive composite material comprising (A) a non-polar polyolefin polymer in a first phase , (AA) a polar ethylene-based copolymer in a second phase , which is at least partially immiscible in the first phase , and an electrical conducting effective amount of (B) an ultra-low-wettability carbon black (ULW-CB) , which has a Brunauer-Emmett-Teller (BET) nitrogen surface area of from 35 to 190 square meters per gram (m/g) , measured by BET Nitrogen Surface Area Test Method; and an oil absorption number (OAN) from 115 to 180 milliliters of oil per 100 grams (mL/100 g) , measured by Oil Absorption Number Test Method; and a water uptake of from 400 to 2400 parts per million (ppm , weight) , measured by Moisture Uptake Test Method.2. The semiconductive composite material of wherein the (B) ULW-CB is characterized by any one of limitations (i) to (iii): (i) the (B) ULW-CB has a BET nitrogen surface area from 40 to 63 m/g claim 1 , measured by the BET Nitrogen Surface Area Test Method; and an OAN from 120 to 150 mL/100 g claim 1 , measured by the Oil Absorption Number Test Method; (ii) the (B) ULW-CB has a BET nitrogen surface area from 120 to 180 m/g claim 1 , measured by the BET Nitrogen Surface Area Test Method; and an OAN from 150 to 175 mL/100 g claim 1 , measured by the Oil Absorption Number Test Method; and (iii) the (B) ULW-CB is a blend of the ULW-CBs of (i) and (ii).3. A semiconductive composite material comprising (A) a non-polar polyolefin polymer in a first phase claim 1 , ( ...

CROSSLINKABLE POLYMERIC COMPOSITIONS WITH N,N,N',N',N",N"-HEXAALLYL-1,3,5-TRIAZINE-2,4,6-TRIAMINE CROSSLINKING COAGENT, METHODS FOR MAKING THE SAME, AND ARTICLES MADE THEREFROM

Crosslinkable polymeric compositions comprising a thermoplastic, non-elastomer ethylene-based polymer, an organic peroxide, and a crosslinking coagent comprising N,N,N′,N′,N″,N″-hexaallyl-1,3,5-triazine-2,4,6-triamine. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables. 1. A crosslinkable polymeric composition , comprising:(a) a thermoplastic, non-elastomer ethylene-based polymer;(b) an organic peroxide; and(c) a crosslinking coagent comprising N,N,N′,N′,N″,N″-hexaallyl-1,3,5-triazine-2,4,6-triamine2. The crosslinkable polymeric composition of claim 1 , wherein said ethylene-based polymer is non-polar.3. The crosslinkable polymeric composition of claim 2 , wherein said ethylene-based polymer has no fluoromonomers incorporated therein.4. The crosslinkable polymeric composition of claim 1 , wherein said N claim 1 ,N claim 1 ,N′ claim 1 ,N′ claim 1 ,N″ claim 1 ,N″-hexaallyl-1 claim 1 ,3 claim 1 ,5-triazine-2 claim 1 ,4 claim 1 ,6-triamine and said organic peroxide are present in a coagent-to-peroxide weight ratio of greater than 1:1.5. The crosslinkable polymeric composition of claim 1 , wherein said ethylene-based polymer comprises a high-pressure low-density polyethylene; wherein said organic peroxide comprises dicumyl peroxide; wherein said crosslinkable polymeric composition further comprises one or more antioxidants.6. The crosslinkable polymeric composition of claim 1 , wherein said ethylene-based polymer is present in an amount ranging from 50 to 99 weight percent claim 1 , based on the entire crosslinkable polymeric composition weight; wherein said organic peroxide is present in an amount of less than 1.2 weight percent claim 1 , based on the entire crosslinkable polymeric composition weight; wherein said crosslinking coagent is present in an amount ranging from 0.01 to 15 weight percent claim 1 , based on the entire crosslinkable polymeric ...

Power Cable with a Thick Insulation Layer and a Method for its Manufacture

A power cable comprising a: (A) Conductor, (B) First semiconductor in contact with the conductor; (C) First insulation layer in contact with the first semiconductor; (D) Second semiconductor layer in contact with the first insulation layer; (E) Third semiconductor layer in contact with the second semiconductor layer; (F) Second insulation layer in contact with the third semiconductor layer; and (G) Fourth semiconductor layer in contact with the second insulation layer.

COATED CONDUCTOR WITH VOLTAGE-STABILIZED INNER LAYER

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent, which is selected from one or more of a group of three specific triazine compounds. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable. 2. The coated conductor of claim 1 , wherein said polyolefin is a polyethylene.3. The coated conductor of claim 1 , wherein said polymeric composition is in direct contact with said conductor.4. The coated conductor of claim 1 , wherein said triazine consists of the compound having structure (I).5. The coated conductor of claim 1 , wherein said triazine consists of the compound having structure (II).6. The coated conductor of claim 1 , wherein said triazine consists of the compound having structure (III).7. The coated conductor of claim 1 , wherein said polymeric composition comprises from 0.1 wt % to 5 wt % of said triazine.8. The coated conductor of claim 1 , wherein said coated conductor is selected from the group consisting of a medium-voltage power cable claim 1 , a high-voltage power cable claim 1 , and an extra-high-voltage power cable.9. The coated conductor of claim 1 , wherein said inner layer is an insulating layer.10. The coated conductor of claim 1 , wherein said inner layer is a shielding layer. The present application claims the benefit of U.S. Provisional Application No. 61/813,320, filed on Apr. 18, 2013.A typical power cable includes one or more conductors in a cable core surrounded by one or more layers of polymeric material. Medium-voltage (6 to 36 kV), high-voltage (greater than 36 kV), and extra-high-voltage (greater than 220 kV) cables typically include a core surrounded by an inner semiconducting layer, followed by an insulating layer, and then an outer semiconducting layer, and an outermost layer (or sheath).The load-carrying capacity of a cable system is limited, in part, by the heat ...

Peroxide-Crosslinkable Compositions and Processes for Their Manufacture

A peroxide-crosslinkable composition comprising: 116.-. (canceled)17. A peroxide-crosslinkable composition comprising:(A) a peroxide-crosslinkable polyethylene;(B) 0.0005 to 0.03 wt % of a low molecular weight, or low melting, or liquid nitrogenous base comprising a hindered amine stabilizer, the low molecular weight, or low melting, or liquid nitrogenous base having a molecular weight equal to or less than 1,400 g/mol and a melting temperature equal to or less than 95° C., based on the weight of the composition;(C) one or more antioxidants (AO); and(D) optionally an organic peroxide.18. The composition of in which the low molecular weight claim 17 , or low melting claim 17 , or liquid nitrogenous base has a molecular weight equal to or less than 1 claim 17 ,000 g/mol.19. The composition of in which the antioxidant comprises a hindered phenol.20. The composition of in which the antioxidant comprises a thioester.21. The composition of in which the antioxidant comprises a hindered phenol and a thioester.22. The composition of in which the antioxidant comprises tetrakis[methylene(3 claim 17 ,5-di-tert-butyl-4-hydroxyhydro-cinnamate)]methane; 4 claim 17 ,4′-thiobis-(3-methyl-6-t-butylphenol); and distearylthiodipropionate (DSTDP).23. The composition of in which the antioxidant comprises [1 claim 17 ,3 claim 17 ,5-tris(4-tert-butyl-3-hydroxy-2 claim 17 ,6-dimethylbenzyl)-1 claim 17 ,3 claim 17 ,5-triazine-2 claim 17 ,4 claim 17 ,6-(1H claim 17 ,3H claim 17 ,5H)-trione]; and distearylthiodipropionate (DSTDP).24. The composition of comprising from 0.5 wt % to 2.5 wt % of the organic peroxide.25. A wire or cable comprising a sheath comprising the composition of . The invention relates to peroxide-crosslinkable compositions. In one aspect, the invention relates to processes of preparing peroxide-crosslinkable compositions while in another aspect, the invention relates to insulation made from the compositions that is useful in the manufacture of high voltage (HV) or extra ...

SEMI-CRYSTALLINE POLYOLEFIN-BASED ADDITIVE MASTERBATCH COMPOSITION

An additive masterbatch composition comprising a semi-crystalline polyolefin carrier resin and an additive package comprising a flame retardant. A moisture-curable polyolefin composition comprising the additive masterbatch composition and a (hydrolyzable silyl group)-functional polyolefin prepolymer. A method of making the compositions; a moisture-cured polyolefin composition prepared therefrom; a manufactured article comprising or made from the formulation; and a method of using the manufactured article. 1. An additive masterbatch composition comprising (A) a semi-crystalline polyolefin carrier resin and an additive package comprising (B) a flame retardant; wherein (A) is 10 to 90 weight percent (wt %) and the additive package is from 90 to 10 wt % of total weight (100.00 wt %) of the additive masterbatch composition; wherein the (B) flame retardant comprises (B1) a mineral; and wherein the additive masterbatch composition further comprises a flame retardant synergist compound.2. The additive masterbatch composition of wherein the (A) semi-crystalline polyolefin carrier resin consists essentially of any one of (i) to (viii): (i) a semi-crystalline medium density polyethylene; (ii) a semi-crystalline high density polyethylene; (iii) a semi-crystalline polypropylene; (iv) a semi-crystalline ethylene/propylene copolymer; (v) a semi-crystalline poly(ethylene-co-alpha-olefin) copolymer; (vi) a combination (e.g. claim 1 , mixture or blend) of any two or more of (i) claim 1 , (ii) and (v); (vii) the (A) semi-crystalline polyolefin carrier resin has a crystallinity of 50 to <100 wt %; or (viii) any one of limitations (i) to (vi) and the (A) semi-crystalline polyolefin carrier resin has a crystallinity of 50 to <100 wt %.3. The additive masterbatch composition of wherein the (A) semi-crystalline polyolefin carrier resin has any one of (i) to (x): (i) a density of at least 0.925 g/cmand is a polyethylene or a density of 0.89 to 0.90 g/cmand is a polypropylene; (ii) a ...

MASTERBATCH WITH SEMI-CRYSTALLINE POLYOLEFIN CARRIER RESIN

A coagent masterbatch comprising a semi-crystalline polyolefin carrier resin and an alkenyl-functional coagent. An electron-beam curable formulation comprising the coagent masterbatch and a polyolefin compound. A method of making the master-batch and formulation; an electron-beam-cured polyolefin product prepared therefrom; a manufactured article comprising or made from the masterbatch, formulation, or product; and a method of using the manufactured article. 1. A coagent masterbatch comprising (A) a semi-crystalline polyolefin carrier resin and (B) an alkylene-functional coagent disposed in the (A) semi-crystalline polyolefin carrier resin; wherein (A) is 80.0 to 99.9 weight percent (wt %) and (B) is from 20.0 to 0.1 wt % of the combined weight of constituents (A) and (B); wherein the (A) semi-crystalline polyolefin carrier resin has a crystallinity of from 55.0 to less than 100 weight percent (wt %) as measured by Crystallinity Test Method using differential scanning calorimetry (DSC); wherein when the (A) semi-crystalline polyolefin carrier resin is a semi-crystalline polyethylene , the semi-crystalline polyethylene has a density of greater than 0.935 gram per cubic centimeter (g/cm).2. The coagent masterbatch of characterized by any one of limitations (i) to (x): (i) the coagent masterbatch is free of (C) an (electron beam)-curable polyolefin compound (host polymer) other than constituent (A); (ii) the coagent masterbatch further comprises at least one additive independently selected from optional additives (D) to (L): (D) a flame retardant claim 1 , (E) an antioxidant claim 1 , (F) a processing aid claim 1 , (G) a colorant claim 1 , (H) a metal deactivator claim 1 , (I) an (unsaturated carbon-carbon bond)-free hydrolyzable silane claim 1 , (J) a corrosion inhibitor claim 1 , (K) a hindered amine light stabilizer claim 1 , and (L) an ethylene-based copolymer that is different than constituents (A) and (C) and is an ethylene/(C-C)alpha-olefin copolymer claim 1 , ...

MASTERBATCH WITH SEMI-CRYSTALLINE POLYOLEFIN CARRIER RESIN

A coagent masterbatch comprising a semi-crystalline polyolefin carrier resin and an alkenyl-functional coagent. A peroxide curable formulation comprising the coagent masterbatch and a polyolefin compound. A method of making the masterbatch and formulation; a peroxide-cured polyolefin product prepared therefrom; a manufactured article comprising or made from the masterbatch, formulation, or product; and a method of using the manufactured article. 1. A coagent masterbatch comprising (A) a semi-crystalline polyolefin carrier resin and (B) an alkylene-functional coagent disposed in the (A) semi-crystalline polyolefin carrier resin , and (C) an organic peroxide disposed on and/or in the (A) semi-crystalline polyolefin carrier resin; wherein the (A) semi-crystalline polyolefin carrier resin has a crystallinity of from 55.0 to less than 100 weight percent (wt %) as measured by Crystallinity Test Method using differential scanning calorimetry (DSC); wherein when the (A) semi-crystalline polyolefin carrier resin is a semi-crystalline polyethylene , the semi-crystalline polyethylene has a density of greater than 0.935 gram per cubic centimeter (g/cm); wherein (A) is 70.0 to 99.9 weight percent (wt %) and (B) is from 30.0 to 0.1 wt % of the combined weight of constituents (A) and (B); and wherein (C) is from 0.01 to 4.5 wt % of the total weight of the coagent masterbatch.2. The coagent masterbatch of characterized by any one of limitations (i) to (x): (i) the coagent masterbatch is free of (D) an peroxide-curable polyolefin compound (host polymer) other than constituent (A); (ii) the coagent masterbatch further comprises at least one additive independently selected from optional additives (E) to (M): (E) an antioxidant claim 1 , (F) a processing aid claim 1 , (G) a colorant claim 1 , (H) a metal deactivator claim 1 , (I) an (unsaturated carbon-carbon bond)-free hydrolyzable silane claim 1 , (J) a corrosion inhibitor claim 1 , (K) a hindered amine light stabilizer claim 1 , (L) ...

POLYOLEFIN COMPOSITION

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. 1. (canceled)2. A polyolefin composition comprising (A) a polyolefin polymer that is a low density polyethylene (LDPE) polymer comprising 50 to 100 weight percent (wt %) ethylenic monomeric units , 50 to 0 wt % (C-C)alpha-olefin-derived comonomeric units , and 20 to 0 wt % diene comonomeric units , wherein total weight percent is 100.00 wt %; (B) a monocyclic organosiloxane of formula (I): [R ,RSiO](I) , wherein subscript n is 4; each Ris independently a (C-C)alkenyl or a HC═C(R)—C(═O)—O—(CH)— wherein Ris H or methyl and subscript m is an integer from 1 to 4; and each Ris independently H , (C-C)alkyl , phenyl , or R; and (C) an organic peroxide; with the proviso that the polyolefin composition is free of a phosphazene base; and with the proviso that the (A) polyolefin composition does not contain 24 wt % or more of an inorganic filler selected from the group consisting of aluminum oxide , aluminum silicate , calcium silicate , magnesium silicate , silica , titanium dioxide , and mixtures thereof; and{'sup': ['1', '2', '1', '2', '1', '2', '1', '2', '1', '2', '1', '1a', '1a', '2', '1', '1a', '1a', '1a', '2', '1', '1a', '1a', '2'], 'sub': ['2', '3', '1', '2', '2', '3', '1', '2', '1', '2', '2', '2', 'm', '1', '2', '2', '3', '2', '2', 'm', '1', '2', '2', '2', 'm', '1', '2'], '#text': 'wherein the (B) monocyclic organosiloxane of formula (I) is described by any one of limitations (i) to (x): (i) each Ris independently a (C-C)alkenyl; and each Ris independently H, (C-C)alkyl, or (C-C)alkenyl; (ii) each Ris vinyl; and each Ris independently (C-C)alkyl; (iii) each Ris vinyl; and each Ris methyl; (iv) each Ris allyl; and each Ris independently (C-C)alkyl; (v) each Ris allyl; and each Ris methyl; (vi) each Ris independently HC═C(R)—C(═O)—O—(CH)— wherein Ris H ...

MOISTURE-CURABLE POLYOLEFIN FORMULATION

A moisture-curable polyolefin formulation comprising a (hydrolyzable silyl group)-functional polyolefin prepolymer and a compound that is an iron (II) acetylacetonate or an iron (III) acetylacetonate, wherein each compound independently is unsubstituted or substituted. Also, methods of making and using same, a cured polyolefin made therefrom, and articles containing or made from same. 1. A moisture-curable polyolefin formulation comprising:(A) a (hydrolyzable silyl group)-functional polyolefin prepolymer; and(B) a condensation-cure catalyst system comprising a compound that is an iron(II) acetylacetonate or an iron(III) acetylacetonate, wherein each acetylacetonate is unsubstituted or independently substituted with from 1 to 5 alkyl groups, wherein each alkyl group is unsubstituted (collectively called “iron (alkyl)acetylacetonate”);wherein the amount of (A) is from 79.0 to 99.99 weight percent (wt %) and the amount of (B) is from 21.0 to 0.01 wt %, respectively, of the moisture-curable polyolefin formulation.2. The moisture-curable polyolefin formulation of wherein the (A) (hydrolyzable silyl group)-functional polyolefin prepolymer is characterized by any one of limitations (i) to (iii): (i) each hydrolyzable silyl group is independently a monovalent group of formula (R)(R)Si— claim 1 , wherein subscript m is an integer of 1 claim 1 , 2 claim 1 , or 3; each Ris independently H claim 1 , HO— claim 1 , (C-C)alkoxy claim 1 , (C-C)carboxy claim 1 , phenoxy claim 1 , (C-C)alkyl-phenoxy claim 1 , ((C-C)alkyl)N— claim 1 , (C-C)alkyl(H)C═NO— claim 1 , or ((C-C)alkyl)C═NO—; and each Ris independently (C-C)alkyl or phenyl; (ii) the polyolefin portion of (A) is polyethylene based claim 1 , poly(ethylene-co-(C-C)alpha-olefin)-based claim 1 , or a combination thereof; and (iii) both (i) and (ii).3. The moisture-curable polyolefin formulation of wherein the (B) condensation-cure catalyst system is any one of (B1) to (B3): (B1) the iron(II) (alkyl)acetylacetonate; (B2) the iron( ...

MOISTURE-CURABLE POLYOLEFIN FORMULATION

A moisture-curable polyolefin formulation comprising a (hydrolyzable silyl group)-functional polyolefin prepolymer and a condensation-cure catalyst system comprising and/or made from mixture of a compound that is a carboxamidine or a guanidine and a compound that is a cobalt acetylacetonate or a zinc acetylacetonate, wherein each compound independently is unsubstituted or substituted. Also, methods of making and using same, a cured polyolefin made therefrom, and articles containing or made from same. Also, condensation-cure catalyst systems useful therein. 1. A moisture-curable polyolefin formulation comprising:(A) a (hydrolyzable silyl group)-functional polyolefin prepolymer; and{'sub': ['2', '3', '2'], '#text': '(B) a condensation-cure catalyst system comprising a mixture made by contacting a compound that is a carboxamidine or a guanidine and is unsubstituted or substituted (collectively called “(aza)carboxamidine”) with a compound that is a cobalt acetylacetonate coordination complex or a zinc acetylacetonate coordination complex, wherein each acetylacetonate independently is unsubstituted or substituted with from 1 to 5 alkyl groups, wherein each alkyl group is unsubstituted (collectively called “Co,Zn (alkyl)acetylacetonate”); wherein the Co,Zn (alkyl)acetylacetonate is selected from a cobalt(II) ((alkyl)acetylacetonate), a cobalt(III) ((alkyl)acetylacetonate), and a zinc(II) ((alkyl)acetylacetonate);'}wherein the amount of (A) is from 79.0 to 99.99 weight percent (wt %) and the amount of (B) is from 21.0 to 0.01 wt %, respectively, of the moisture-curable polyolefin formulation; andwherein the (B) condensation-cure catalyst system is characterized by an (aza)carboxamidine/Co,Zn (alkyl)acetylacetonate molar ratio of from 15 to 0.15.2. The moisture-curable polyolefin formulation of wherein the (A) (hydrolyzable silyl group)-functional polyolefin prepolymer is characterized by any one of limitations (i) to (iii): (i) each hydrolyzable silyl group is ...

VOLTAGE-STABILIZED POLYMERIC COMPOSITIONS

Disclosed are polymeric compositions with improved electrical breakdown strength. The polymeric compositions contain a poly-α-olefin and a voltage-stabilizing agent, which comprises an organic carboxylic ester comprising at least one aromatic ring and from 1 to 2 carboxylic alkyl ester substituents. Alternatively, the voltage-stabilizing agent can comprise trioctyl trimellitate. The present polymeric compositions exhibit improved electrical breakdown strength when applied as an insulating and/or shielding layer for power cables. 1. A polymeric composition , comprising:a poly-α-olefin polymer; andan organic carboxylic ester comprising at least one aromatic ring and from 1 to 2 carboxylic alkyl ester substituents.2. The polymeric composition of claim 1 , wherein said poly-α-olefin polymer is an ethylene-based polymer.3. The polymeric composition of claim 2 , wherein said ethylene-based polymer is a low-density polyethylene.4. The polymeric composition of claim 1 , wherein said poly-α-olefin polymer is crosslinked.5. The polymeric composition of claim 1 , wherein said organic carboxylic ester has a single aromatic ring.6. The polymeric composition of claim 5 , wherein said aromatic ring is a benzene ring.7. The polymeric composition of claim 1 , wherein the alkyl groups of said carboxylic alkyl ester substituents are selected from Cto Calkyl groups.8. The polymeric composition of claim 1 , wherein said organic carboxylic ester is selected from the group consisting of dioctyl phthalate claim 1 , dinonyl phthalate claim 1 , hexyl benzoate claim 1 , and combinations thereof; wherein said organic carboxylic ester is present in said polymeric composition in an amount ranging from 0.1 to 2 weight percent based on the combined weight of said poly-α-olefin polymer and said organic carboxylic ester.9. A coated conductor claim 1 , comprising:a conductor; anda dielectric insulating layer,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein said dielectric insulating layer ...

METHOD OF MAKING A HOMOGENEOUS MIXTURE OF POLYOLEFIN SOLIDS AND AN ORGANIC PEROXIDE

A method of making a homogeneous mixture of polyolefin solids and an organic peroxide without melting the polyolefin solids during the making. The method comprises applying acoustic energy at a frequency of from 20 to 100 hertz to a heterogeneous mixture comprising the polyolefin solids and the organic peroxide for a period of time sufficient to substantially intermix the polyolefin solids and the organic peroxide together while maintaining temperature of the heterogeneous mixture below the melting temperature of the polyolefin solids, thereby making the homogeneous mixture without melting the polyolefin solids. 1. A method of making a homogeneous mixture of polyolefin solids and organic peroxide without melting the polyolefin solids during the making , the method comprising applying acoustic energy at a frequency of from 20 to 100 hertz (Hz) to a heterogeneous mixture comprising (A) polyolefin solids and (B) organic peroxide for a period of time sufficient to substantially intermix the (A) polyolefin solids and the (B) organic peroxide together while maintaining temperature of the heterogeneous mixture (and , for that matter , the temperature of the homogeneous mixture made therefrom) below the melting temperature of the (A) polyolefin solids , thereby making the homogeneous mixture without melting the (A) polyolefin solids; wherein the (A) polyolefin solids are from 95.0 to 99.9 weight percent (wt %) and the (B) organic peroxide is from 0.1 to 5.0 wt % , respectively , of the combined weights of the constituents (A) and (B).2. The method of wherein the applying acoustic energy step is characterized by any one of limitations (i) to (v): (i) the frequency is from 50 to 70 Hz; (ii) the period of time is from 0.5 minute to 4 hours; (iii) both (i) and (ii); (iv) the maintaining temperature of the heterogeneous mixture below the melting temperature of the (A) polyolefin solids comprises maintaining temperature of the heterogeneous mixture at from −20° to 109° C.; and (v ...

PROCESSES FOR PREPARING CABLES WITH A CROSSLINKED INSULATION LAYER AND CABLES FOR SAME

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. 1. A process for preparing a cable core having a crosslinked insulation layer , said process comprising: (i) a conductor;', '(ii) a first polymeric semiconductive layer;, '(a) providing an initial cable core comprising(iii) an initial insulation layer comprising a crosslinkable polymeric composition which comprises an ethylene-based polymer, an organic peroxide, and a polyallyl crosslinking coagent;(iv) a second polymeric semiconductive layer; and(b) subjecting said initial cable core to a crosslinking process sufficient to crosslink at least a portion of said crosslinkable polymeric composition to thereby produce said cable core having a crosslinked insulation layer,wherein said polyallyl crosslinking coagent and said organic peroxide are present in said crosslinkable polymeric composition in amounts sufficient to provide an allyl-to-active oxygen molar ratio of less than 1.2, based on the allyl content of said polyallyl crosslinking coagent and the active oxygen content of said organic peroxide,wherein when said crosslinked insulation layer is subjected to a degassing process at 70° C. and standard pressure, said crosslinked insulation layer exhibits a reduction in degassing time of at least 50% to reach a methane content of 200 ppm relative to a reference crosslinked insulation layer having the same ...

POLYETHYLENE COMPOSITION WITH TREEING RETARDANTS

A polyethylene composition comprising (A) an ethylene-based (co) polymer, (B) a styrenic unit-containing copolymer, and (C) a polyorganosiloxane. Also a method of making the composition; a crosslinked polyethylene product made by curing the composition; manufactured articles comprising a shaped form of the inventive composition or product; and methods of using the inventive composition, product, or articles. 1. A polyethylene composition comprising from 50 to 98.9 weight percent (wt %) of (A) an ethylene-based (co)polymer; from 1 to 20.0 wt % of (B) a styrenic unit-containing copolymer; and from 0.1 to 10 wt % of (C) a polyorganosiloxane.2. The polyethylene composition of comprising from 50.0 to 98.9 wt % of the (A) ethylene-based (co)polymer; from 1.0 to 15.4 wt % of the (B) styrenic unit-containing copolymer; and from 0.1 to less than 1.5 wt % of the (C) polyorganosiloxane.3. The polyethylene composition of wherein the total amount of the (B) styrene copolymer and (C) polyorganosiloxane is from 1.1 to 16 wt % of the polyethylene composition.4. The polyethylene composition of claim 1 , characterized by any one of limitations (i) to (iii): (i) the polyethylene composition has a weight/weight ratio of the (B) styrenic unit-containing copolymer to the (C) polyorganosiloxane from 2 to 40; (ii) the (B) styrenic unit-containing copolymer is a linear polystyrene-ethylene/butylene-polystyrene triblock copolymer; and (iii) both (i) and (ii).5. The polyethylene composition of further comprising from 0.05 to 2 wt % of (D) an antioxidant and no more than 98.85 wt % of the (A) ethylene-based (co)polymer.6. The polyethylene composition of or further comprising from 0.1 to 3 wt % of (E) an organic peroxide and no more than 98.80 wt % or 98.75 wt % claim 1 , respectively claim 1 , of the (A) ethylene-based (co)polymer.7. The polyethylene composition of claim 1 , wherein the polyethylene composition is free of a cure agent.8. The polyethylene composition of claim 1 , further ...

Crosslinkable polymeric compositions with amine-functionalized interpolymers, methods for making the same, and articles made therefrom

Crosslinkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, and an amine-functionalized interpolymer. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables.

POLYOLEFIN FORMULATION WITH POLY(2-ALKYL-2-OXAZOLINE)

A polyolefin-and-poly (2-alkyl-2-oxazoline) formulation comprising (A) an olefin-based (co) polymer, (B) a poly (2-alkyl-2-oxazoline) (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. 1. A polyolefin-and-poly(2-alkyl-2-oxazoline) formulation comprising from 59.99 to 99.94 weight percent (wt %) of (A) an olefin-based (co)polymer; from 0.05 to 20.0 wt % of (B) a poly(2-alkyl-2-oxazoline) (co)polymer; from 0.01 to 1.5 wt % of (C) an antioxidant; and from 0.00 to 3.0 wt % of (D) an organic peroxide; with the proviso that the wt % of (A)=100.00 wt %-wt % of (B)-wt % of (C)-wt % (D)-wt % of all other optional constituents , if any.2. The polyolefin-and-poly(2-alkyl-2-oxazoline) formulation of wherein the (A) olefin-based (co)polymer is (i) an ethylene-based (co)polymer claim 1 , a propylene-based (co)polymer claim 1 , or a combination of any two or more thereof; or (ii) a polyethylene homopolymer claim 1 , an ethylene/alpha-olefin copolymer claim 1 , an ethylene/unsaturated carboxylic ester copolymer claim 1 , an ethylene/olefin-functional hydrolyzable silane copolymer claim 1 , or a combination of any two or more thereof.3. The polyolefin-and-poly(2-alkyl-2-oxazoline) formulation of wherein the (B) poly(2-alkyl-2-oxazoline) (co)polymer is a poly(2-alkyl-2-oxazoline) homopolymer claim 1 , a poly(2-alkyl-2-oxazoline) copolymer claim 1 , or a combination of any two or more thereof.4. The polyolefin-and-poly(2-alkyl-2-oxazoline) formulation of wherein the (C) antioxidant is a hindered phenol claim 1 , a phosphite claim 1 , a phosphonite claim 1 , a thio compound claim 1 , an antioxidizing amine claim 1 , or a combination of any two or more thereof.5. The polyolefin-and-poly(2-alkyl-2-oxazoline) formulation of wherein the ...

CROSS-LINKABLE POLYMERIC COMPOSITIONS, METHODS FOR MAKING THE SAME, AND ARTICLES MADE THEREFROM

Cross-linkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, and a polyallyl cross-linking coagent, where the polyallyl cross-linking coagent and the organic peroxide are present in amounts sufficient to provide an allyl-to-active oxygen molar ratio of at least 1.6, based on the allyl content of the polyallyl cross-linking coagent and the active oxygen content of the organic peroxide. Such cross-linkable polymeric compositions can be employed in forming coated conductors. 1. A cross-linkable polymeric composition comprising:an ethylene-based polymer;an organic peroxide; anda polyallyl cross-linking coagent,wherein said polyallyl cross-linking coagent and said organic peroxide are present in amounts sufficient to provide an allyl-to-active oxygen molar ratio of at least 1.6, based on the allyl content of said polyallyl cross-linking coagent and the active oxygen content of said organic peroxide.2. The cross-linkable polymeric composition of claim 1 , wherein said organic peroxide is present in said cross-linkable polymeric composition in an amount of less than 1.4 weight percent claim 1 , based on the combined weight of said ethylene-based polymer claim 1 , said organic peroxide claim 1 , and said polyallyl cross-linking coagent; wherein said polyallyl cross-linking coagent is present in said cross-linkable polymeric composition in an amount of at least 0.5 weight percent claim 1 , based on the combined weight of said ethylene-based polymer claim 1 , said organic peroxide claim 1 , and said polyallyl cross-linking coagent; wherein said ethylene-based polymer is present in said cross-linkable polymeric composition in an amount ranging from 50 to 98.9 weight percent claim 1 , based on the total cross-linkable polymeric composition weight.3. The cross-linkable polymeric composition of claim 1 , wherein said polyallyl cross-linking coagent is a triallyl compound; wherein said organic peroxide is a mono-functional peroxide.4. The cross- ...

Peroxide-Crosslinkable Compositions and Processes for Their Manufacture

A peroxide-crosslinkable composition comprising: (A) A peroxide-crosslinkable polymer, e.g., a polyethylene; (B) A nitrogenous base, e.g., a low molecular weight, or low melting, or liquid nitrogenous base such as triallyl cyanurate (TAC); and (C) One or more antioxidants (AO), e.g., distearylthiodipropionate (DSTDP). The composition is useful in the manufacture of insulation sheaths for high and extra high voltage wire and cable.

POLYOLEFIN COMPOSITION

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. 1. A polyolefin composition comprising (A) a polyolefin polymer that is a low density polyethylene (LDPE) polymer comprising 50 to 100 weight percent (wt %) ethylenic monomeric units , 50 to 0 wt % (C-C)alpha-olefin-derived comonomeric units , and 20 to 0 wt % dienecomonomeric units , wherein total weight percent is 100.00 wt %; a crosslinking effective amount of (B) a monocyclic organosiloxane of formula (I): [R ,RSiO](I) , wherein subscript n is an integer greater than or equal to 3; each Ris independently a (C-C)alkenyl or a HC═C(R) C(═O)O—(CH)— wherein Ris H or methyl and subscript m is an integer from 1 to 4; and each Ris independently H , (C-C)alkyl , phenyl , or R; and (C) an organic peroxide; with the proviso that the polyolefin composition is free of a phosphazene base.2. A polyolefin composition comprising (A) a polyolefin polymer that is a low density polyethylene (LDPE) polymer comprising 50 to 100 weight percent (wt %) ethylenic monomeric units , 50 to 0 wt % (C-C)alpha-olefin-derived comonomeric units , and 20 to 0 wt % dienecomonomeric units , wherein total weight percent is 100.00 wt %; (B) a monocyclic organosiloxane of formula (I): [R ,RSiO](I) , wherein subscript n is an integer greater than or equal to 3; each Ris independently a (C-C)alkenyl or a HC═C(R)—C(═O)—O—(CH)— wherein Ris H or methyl and subscript m is an integer from 1 to 4; and each Ris independently H , (C-C)alkyl , phenyl , or R; and (C) an organic peroxide; with the proviso that the polyolefin composition is free of a phosphazene base; and with the proviso that when subscript n is 4 , the (A) polyolefin composition does not contain 24 wt % or more of an inorganic filler selected from the group consisting of aluminum oxide , aluminum silicate , calcium silicate , ...

IRRADIATION CURABLE POLYOLEFIN FORMULATION

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/cm) 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. 1. An (electron beam)-curable (EBC) formulation comprising constituents (A) and (B):{'sup': '3', '(A) an (electron beam)-curable (EBC) polyolefin compound having a crystallinity of from 0 to less than 50 weight percent (wt %) as measured by Crystallinity Test Method using differential scanning calorimetry (DSC) and/or having a density of 0.930 gram per cubic centimeter (g/cm) or less as measured by ASTM D792-13, Method B; and'}{'sup': 1', '2', '1', '1a', '1a', '2', '1, 'sub': 2/2', 'n', '2', '4', '2', '2', 'm', '1', '4, '(B) an alkenyl-functional monocyclic organosiloxane of formula (I): [R,RSiO](I), wherein subscript n is an integer greater than or equal to 3; each Ris independently a (C-C)alkenyl or a HC═C(R)—C(═O)—O—(CH)— wherein Ris H or methyl and subscript m is an integer from 1 to 4; and each Ris independently H, (C-C)alkyl, phenyl, or R;'}wherein (A) is 50.0 to 99.99 wt % and (B) is from 50.0 to 0.01 wt % of the combined weight of constituents (A) and (B); andwith the proviso that the EBC formulation is free of each of a phosphazene base, a semi-crystalline polyolefin having a crystallinity of 50 wt % or greater, and an organic peroxide.2. The (electron beam)-curable formulation of wherein the (A) EBC polyolefin compound is characterized by any one of limitations (i) to (xv): (i) a crystallinity of from >0 to less than 50.0 wt % as measured by Crystallinity Test Method using differential ...

POLYOLEFIN COMPOSITION

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. 1. A polyolefin composition comprising (A) a polyolefin polymer and a crosslinking effective amount of (B) a monocyclic organosiloxane of formula (I): [R ,RSiO](I) , wherein subscript n is an integer greater than or equal to 3; each Ris independently a (C-C)alkenyl or a HC═C(R)—C(═O)—O—(CH)— wherein Ris H or methyl and subscript m is an integer from 1 to 4; and each Ris independently H , (C-C)alkyl , phenyl , or R; with the proviso that the polyolefin composition is free of a phosphazene base.2. A polyolefin composition comprising (A) a polyolefin polymer and (B) a monocyclic organosiloxane of formula (I): [R ,RSiO](I) , wherein subscript n is an integer greater than or equal to 3; each Ris independently a (C-C)alkenyl or a HC═C(R)—C(═O)—O—(CH)— wherein Ris H or methyl and subscript m is an integer from 1 to 4; and each Ris independently H , (C-C)alkyl , phenyl , or R; ; with the proviso that the polyolefin composition is free of a phosphazene base; and with the proviso that when the polyolefin polymer is an ethylene-containing polymer and subscript n is 4 , the (A) polyolefin composition does not contain 24 wt % or more of an inorganic filler selected from the group consisting of aluminum oxide , aluminum silicate , calcium silicate , magnesium silicate , silica , titanium dioxide , and mixtures thereof.3. The polyolefin composition of or wherein subscript n is 3 and the (B) monocyclic organosiloxane of formula (I) is described by any one of limitations (i) to (x): (i) each Ris independently a (C-C)alkenyl; and each Ris independently H , (C-C)alkyl , or (C-C)alkenyl; (ii) each Ris vinyl; and each Ris independently (C-C)alkyl; (iii) each Ris vinyl; and each Ris methyl; (iv) each Ris allyl; and each Ris independently (C-C)alkyl; (v) each Ris allyl; and each Ris methyl; ( ...

Reduction of Dielectric Losses Through Use of Organoclay in Semiconductor or Insulator Compositions

Organoclays are added to semiconductive compositions to provide a reduction in the dielectric losses of layered composites in which the semiconductive layer contains species which could migrate into the insulation and result in undesirably high dielectric losses. The invention semiconductive compositions provide improved performance in power cable applications. 1. A layered structure comprising:a semiconducting layer comprising a first material that comprises a first polymeric resin and a conductive filler, wherein the first polymeric resin comprises at least one propylene copolymer which is a copolymer of propylene with an α-olefin comonomer, the propylene copolymer comprising lossy species; andan insulating layer comprising a second material that comprises a second polymeric resin, the second polymeric resin comprising a crosslinked polyethylene crosslinked with dicumyl peroxide,wherein the semiconducting layer and the insulating layer are at least partially in physical contact with each other,at least one of the first material and the second material further comprises an organoclay,wherein the organoclay is present in either the first material or second material in an amount up to about 3 wt % based on the total weight of the polymeric resin in the material, andwherein the ratio of AC dielectric losses of a comparative structure to the layered structure is greater than 1.5, after aging at 140° C. for one week, when measured at a temperature of 130° C. and a frequency of 60 Hz, the comparative structure being identical to the layered structure except that the comparative structure lacks organoclay.2. The layered structure of wherein the insulating layer consists of the second material that consists of:the second polymeric resin consisting of the crosslinked polyethylene; andup to 3 wt % of the organoclay based on the total weight of the polymeric resin in the second material.3. The layered structure of wherein the insulating layer excludes a filler other than the ...

Cable Insulation Compositions Comprising a Phosphorus-Containing Antioxidant

The process for making extra high voltage cable insulation is improved by using a composition comprising in weight percent based on the weight of the composition: (A) 95 to 99.9% of an ethylene-based polymer; (B) 0.2 to 2.5% peroxide; (C) 0.01 NI to 0.5% of a sulfur-containing first antioxidant having at least one —S(CH)2COR group, wherein R is a C6 to C20 alkyl; (D) 0.001 to 0.009%) of a phosphorus-containing second antioxidant that does not contain a —S(CH)C0R group, wherein R is a C6 to C20 alkyl; (E) Optionally, an organic nitrogenous base; and (F) Optionally, a phenolic third antioxidant that does not contain a —S(CH)C0R group, wherein R is a C6 to C20 alkyl. 1. A composition comprising in weight percent based on the weight of the composition:(A) 95 to 99.9% of an ethylene-based polymer;(B) 0.2 to 2.5% peroxide;{'sub': 2', '2', '2, '(C) 0.01 to 0.5% of a sulfur-containing first antioxidant having at least one —S(CH)COR group, wherein R is a C6 to C20 alkyl;'}{'sub': 2', '2', '2, '(D) 0.001 to 0.009% of a phosphorus-containing second antioxidant that does not contain a —S(CH)COR group, wherein R is a C6 to C20 alkyl;'}(E) Optionally, an organic nitrogenous base; and{'sub': 2', '2', '2, '(F) Optionally, a phenolic third antioxidant that does not contain a —S(CH)COR group, wherein R is a C6 to C20 alkyl.'}2. The composition of in which the ethylene-based polymer has a melt index (I) from 0.1 to 100 g/10 min measured according to ASTM D1238 claim 1 , Condition 190° C./2.16 kg.3. The composition of in which the ethylene-based polymer has a density from 0.910 to 0.940 g/cc measured by the procedure of ASTM D792 claim 2 , Method B.4. The composition of in which the ethylene-based polymer is a low density polyethylene made in a tubular reactor.5. The composition of in which the peroxide is an organic peroxide.6. The composition of in which the R of the —S(CH)COR group of the sulfur-containing first antioxidant of (C) is CHor CH.7. The composition of in which the sulfur ...

CABLE INSULATION COMPOSITIONS COMPRISING A SULFUR-CONTAINING SECOND ANTIOXIDANT

The process for making extra high voltage cable insulation is improved by using a composition comprising in weight percent based on the weight of the composition: (A) 95 to 99.9% of an ethylene-based polymer; (B) 0.2 to 2.5% peroxide; (C) 0.01 to 0.5% of a sulfur-containing first antioxidant having at least one —S(CH)C0R group, wherein R is C6 to C20 alkyl; (D) 0.001 to 0.009%) of a sulfur-containing second antioxidant that does not contain a —S(CH)C0R group, wherein R is a C6 to C20 alkyl; (E) Optionally, an organic nitrogenous base; and (F) Optionally, a phenolic third antioxidant that does not contain a —S(CH)C0R group, wherein R is a C6 to C20 alkyl. 1. A composition comprising in weight percent based on the weight of the composition:(A) 95 to 99.9% of an ethylene-based polymer;(B) 0.2 to 2.5% peroxide;{'sub': 2', '2', '2, '(C) 0.01 to 0.5% of a sulfur-containing first antioxidant having at least one —S(CH)COR group, wherein R is C6 to C20 alkyl;'}{'sub': 2', '2', '2, '(D) 0.001 to 0.009% of a sulfur-containing second antioxidant that does not contain a —S(CH)COR group, wherein R is a C6 to C20 alkyl;'}(E) Optionally, an organic nitrogenous base; and{'sub': 2', '2', '2, '(F) Optionally, a phenolic third antioxidant that does not contain a —S(CH)COR group, wherein R is a C6 to C20 alkyl.'}2. The composition of in which the ethylene-based polymer has (i) a melt index (I) from 0.1 to 100 g/10 min measured according to ASTM D1238 claim 1 , Condition 190° C./2.16 kg and claim 1 , (ii) a density from 0.910 to 0.940 g/cc measured by the procedure of ASTM D792 claim 1 , Method B.3. The composition of in which the ethylene-based polymer is a low density polyethylene made in a tubular reactor.4. The composition of in which the sulfur-containing first antioxidant is at least one of dimyristyl thiodipropionate claim 1 , distearyl thiodipropionate claim 1 , dilauryl thiodipropionate claim 1 , and pentaerythritol tetrakis (B-laurylthiopropionate).5. The composition of in ...

METHOD OF ATTENUATING CONCERNTRATION OF ACROLEIN

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. 1. A method of producing a treated mixture that is free of acrolein or that has a lower concentration of acrolein than a comparative untreated mixture , the method comprising contacting a starting mixture comprising constituent (A) at least one compound that is not acrolein and constituent (B) acrolein , or comprising constituent (A) and constituent (C) an acrolein-forming precursor composition , with an effective amount of an amine of formula (I) RRRN (I) so as to produce a treated mixture comprising constituent (A) at least one compound that is not acrolein , wherein the treated mixture is free of acrolein or has a concentration of acrolein that is from >0 percent to less than 50 percent of a first concentration of acrolein in the comparative untreated mixture when both of the treated and untreated mixtures are tested according to Acrolein Test Method 1; wherein constituent (A) of the treated mixture is the same as , or a product of a reaction of , the constituent (A) of the starting mixture; and wherein:{'sup': 1', '2', '3, 'sub': 1', '20', '1', '20', '6', '14', '2', '12', '1', '20', '1', '20, 'Ris a monovalent (C-C)aliphatic group, a monovalent (C-C)heteroaliphatic group, a monovalent (C-C)aryl group, or a monovalent (C-C)heteroaryl group; and each of Rand Ris independently H, a monovalent (C-C)aliphatic group, or a monovalent (C-C)heteroaliphatic group; or'}{'sup': 1', '2', '1a', '2a', '3, 'sub': 2', '20', '1', '20', '1', '20', '1', '20, 'Rand Rare bonded together to give a divalent group of formula —R—R—, wherein the divalent group is a divalent (C-C)aliphatic group, or a divalent (C-C)heteroaliphatic group and Ris H, a monovalent (C-C)aliphatic group, or a monovalent (C-C)heteroaliphatic group; or'}{'sup': 1', '2', '3', '1a', '2a', '3a, 'sub': 3', '20', '2', '20, 'Rand Rand Rare ...

Polymeric Compositions with Voltage Stabilizer Additive

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent is a diphenoxybenzene and/or a benzanilide. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable. 2. The coated conductor of wherein the polyolefin of the polymeric composition is a polyethylene.3. The coated conductor of wherein the polyolefin of the polymeric composition is a crosslinked polyethylene.4. The coated conductor of wherein at least one of R-Rof structure (I) of the diphenoxybenzene of the polymeric composition is a C-Chydrocarbyl group.5. The coated conductor of wherein each of R-Rof structure (I) of the diphenoxybenzene of the polymeric composition is hydrogen.6. The coated conductor of wherein the diphenoxybenzene comprises from about 0.1 wt % to about 3 wt % of the polymeric composition. A typical power cable includes one or more conductors in a cable core surrounded by one or more layers of polymeric material. Medium voltage (6 to 36 kV) and high voltage (higher than 36 kV) and extra high voltage (greater than 220 kV) cable typically includes a core surrounded by an inner semiconducting layer, followed by an insulating layer, and then an outer semiconducting layer.The load-carrying capacity of a cable system is limited, in part, by the heat transfer away from the conductor. Polyolefins, such as polyethylene, are frequently utilized in the insulating layer and/or in the semiconducting layer. Polyethylene has a low dielectric permittivity and a relatively high electrical breakdown strength.Known are voltage stabilizing agents for polyolefin compositions that increase electrical breakdown strength of insulating layers in power cable. Conventional voltage stabilizing agents, however, have poor compatibility with polyolefins. The art recognizes the continuous need for voltage stabilizing agents compatible ...

SEMI-CRYSTALLINE POLYOLEFIN-BASED ADDITIVE MASTERBATCH COMPOSITION

An additive masterbatch composition comprising a semi-crystalline polyolefin carrier resin and an additive package comprising a product of a reaction of an acidic condensation catalyst and a secondary diarylamine. A moisture-curable polyolefin composition comprising the additive masterbatch composition and a (hydrolyzable silyl group)-functional polyolefin prepolymer. A method of making the compositions; a moisture-cured polyolefin composition prepared therefrom; a manufactured article comprising or made from the formulation; and a method of using the manufactured article. 1. An additive masterbatch composition comprising (A) a semi-crystalline polyolefin carrier resin and an additive package comprising (B) an acidic condensation catalyst; wherein (A) is 50 to 99 weight percent (wt %) and the additive package is from 1 to 50 wt % of total weight (100.00 wt %) of the additive masterbatch composition; wherein the (A) semi-crystalline polyolefin carrier resin has a crystallinity of 50 to <100 wt % and consists essentially of any one of limitations (i) to (vi): (i) a semi-crystalline medium density polyethylene; (ii) a semi-crystalline high density polyethylene; (iii) a semi-crystalline polypropylene; (iv) a semi-crystalline ethylene/propylene copolymer; (v) a semi-crystalline poly(ethylene-co-alpha-olefin) copolymer; and (vi) a combination of any two or more of (i) , (ii) and (v); and wherein the (A) semi-crystalline polyolefin carrier resin and is free of any carrier resin other than the (A) semi-crystalline polyolefin carrier resin.2. (canceled)3. The additive masterbatch composition of wherein the (A) semi-crystalline polyolefin carrier resin has (i) a density of at least 0.925 g/cmand is a polyethylene or a density of 0.89 to 0.90 g/cmand is a polypropylene; (ii) a crystallinity of at least 50 wt % and is a polyethylene; (iii) a melt flow index (MFI) of 0.1 to 20 grams per 10 minutes (g/10 min) at 190° C./2.16 kg load and is a polyethylene or a melt flow rate (MFR) ...

SEMI-CRYSTALLINE POLYOLEFIN-BASED ADDITIVE MASTERBATCH COMPOSITION

An additive masterbatch composition comprising a semi-crystalline polyolefin carrier resin and an additive package comprising a product of a reaction of an acidic condensation catalyst and a secondary diarylamine. A moisture-curable polyolefin composition comprising the additive masterbatch composition and a (hydrolyzable silyl group)-functional polyolefin prepolymer. A method of making the compositions; a moisture-cured polyolefin composition prepared therefrom; a manufactured article comprising or made from the formulation; and a method of using the manufactured article. 1. An additive masterbatch composition comprising (A) a semi-crystalline polyolefin carrier resin and an additive package comprising a product of a reaction of (B) an acidic condensation catalyst and (C) a secondary diarylamine of formula (I): (R—Ar)NH (I) , wherein each Ar is benzene-1 ,4-diyl or both Ar are bonded to each other and taken together with the NH of formula (I) constitute a carbazol-3 ,6-diyl; and each Ris independently (C-C)hydrocarbyl; wherein (A) is 50 to 99 weight percent (wt %) and the additive package is from 1 to 50 wt % of total weight (100.00 wt %) of the additive masterbatch composition; wherein the additive masterbatch composition is free of an ethylene/silane copolymer.2. The additive masterbatch composition of wherein the (A) semi-crystalline polyolefin carrier resin consists essentially of: (i) a semi-crystalline medium density polyethylene; (ii) a semi-crystalline high density polyethylene; (iii) a semi-crystalline polypropylene; (iv) a semi-crystalline ethylene/propylene copolymer; (v) a semi-crystalline poly(ethylene-co-alpha-olefin) copolymer; (vi) a combination of any two or more of (i) claim 1 , (ii) and (v); (vii) the (A) semi-crystalline polyolefin carrier resin has a crystallinity of 50 to <100 wt %; or (viii) any one of limitations (i) to (vi) and the (A) semi-crystalline polyolefin carrier resin has a crystallinity of 50 to <100 wt %.3. The additive ...

Polymeric Compositions with Voltage Stabilizer Additive

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent is a diphenoxybenzene and/or a benzanilide. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

ELASTOMER-BASED POLYMERIC COMPOSITIONS HAVING AMORPHOUS SILICA FILLERS

Polymeric compositions suitable for use as insulation materials in electrical applications. Such polymeric compositions comprise an ethylene/α-olefin-based elastomer and a filler, where the filler consists essentially of an amorphous silica. Such polymeric compositions can optionally further comprise an ethylene-based thermoplastic polymer. Also disclosed are coated conductors comprising such polymeric compositions as insulation materials. 1. A polymeric composition for use in coated conductors , said polymeric composition comprising:(a) an ethylene/α-olefin-based elastomer; and(b) a filler,wherein said filler consists essentially of an amorphous silica.2. The polymeric composition of claim 1 , wherein said filler is present in an amount ranging from 1 to 50 weight percent claim 1 , based on the entire polymeric composition weight claim 1 , wherein said amorphous silica is solid at 22° C. and standard atmospheric pressure.3. The polymeric composition of any one of the foregoing claims claim 1 , wherein said amorphous silica is selected from the group consisting of silica gels claim 1 , silica aerogels claim 1 , fumed silica claim 1 , and combinations thereof.4. The polymeric composition of any one of the foregoing claims claim 1 , wherein said ethylene/α-olefin-based elastomer is selected from the group consisting of an ethylene/propylene copolymer claim 1 , ethylene/α-butene copolymer claim 1 , an ethylene/α-hexene copolymer claim 1 , an ethylene/α-octene copolymer claim 1 , an ethylene-propylene-diene monomer (“EPDM”) claim 1 , or combinations of two or more thereof.5. The polymeric composition of any one of the foregoing claims claim 1 , wherein said ethylene/α-olefin-based elastomer is an EPDM polymer.6. The polymeric composition of any one of the foregoing claims claim 1 , wherein said ethylene/α-olefin-based elastomer is present in an amount ranging from 40 to 98 weight percent claim 1 , based on the entire polymeric composition weight.7. The polymeric ...

Composition with Balance of Dissipation Factor and Additive Acceptance

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 C-Chydrocarbyl group and R′ is a C-Chydrocarbyl 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. 2. The composition of wherein the ethylene-based copolymer is a bipolymer.3. The composition of claim 1 , wherein the ethylene-based copolymer comprises from 0.020 mol/100 g to 0.250 mol/100 g comonomer.4. The composition of claim 1 , wherein the ethylene-based copolymer has a melt temperature from 70° C. to 110° C.5. The composition of claim 1 , wherein the ethylene-based copolymer is crosslinked.7. The composition of claim 6 , wherein the composition comprises less than 1 wt % claim 6 , based on the total weight of the composition claim 6 , of olefin-based polymers other than the ethylene-based copolymer.9. The composition of claim 8 , wherein the composition comprises less than 1 wt % claim 8 , based on the total weight of the composition claim 8 , of olefin-based polymers other than the ethylene-based copolymer.11. A cable comprising an insulation layer comprising the composition of .12. The cable of claim 11 , wherein the cable is selected from the group consisting of a medium voltage cable claim 11 , a high voltage cable claim 11 , and an extra-high voltage cable.14. A method of conducting electricity claim 13 , the method comprising applying voltage of from 2 kV to greater than 220 kV across the cable of . Crosslinked polyethylene (XLPE) insulation for medium voltage (MV), high ...

CROSS-LINKABLE POLYMERIC COMPOSITIONS, METHODS FOR MAKING THE SAME, AND ARTICLES MADE THEREFROM

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. 1. A process for preparing a cross-linkable polymeric composition , said process comprising:combining an ethylene-based polymer with an organic peroxide and an antioxidant to thereby form said cross-linkable polymeric composition,wherein said combining step comprises imbibing at least a portion of said organic peroxide and at least a portion of said antioxidant into said ethylene-based polymer.2. The process of claim 1 , wherein said organic peroxide is selected from the group consisting of dicumyl peroxide; tert-butyl peroxybenzoate; di-tert-amyl peroxide; bis(alpha-t-butyl-peroxyisopropyl)benzene; isopropylcumyl t-butyl peroxide; t-butylcumylperoxide; di-t-butyl peroxide; 2 claim 1 ,5-bis(t-butylperoxy)-2 claim 1 ,5-dimethylhexane; 2 claim 1 ,5-bis(t-butylperoxy)-2 claim 1 ,5-dimethylhexyne-3; 1 claim 1 ,1-bis(t-butylperoxy)3 claim 1 ,3 claim 1 ,5-trimethylcyclohexane; isopropylcumyl cumylperoxide; butyl 4 claim 1 ,4-di(tert-butylperoxy)valerate; di(isopropylcumyl)peroxide; and mixtures of two or more thereof; wherein said antioxidant is a hindered phenol claim 1 , a less hindered phenol claim 1 , a thio compound claim 1 , a siloxane claim 1 , an amine claim 1 , or mixtures of two or more thereof.3. The process of claim 1 , wherein said organic peroxide is dicumyl peroxide; wherein said antioxidant comprises one or more components selected from the group consisting of distearyl thiodipropionate claim 1 , dilauryl thiodipropionate claim 1 , octadecyl-3 claim 1 ,5-di-t-butyl-4-hydroxyhydrocinnamate claim 1 , benzenepropanoic acid ...

Crosslinkable Polymeric Compositions with Methyl-Radical Scavengers and Articles Made Therefrom

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.

STABILIZED MOISTURE-CURABLE POLYMERIC COMPOSITIONS

Silane-crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an acidic silanol condensation catalyst, and a phenolic antioxidant. The phenolic antioxidant has a phenol-based moiety fused with a cyclic ether where the oxygen atom of the cyclic ether is located in the para position relative to the hydroxyl group of the phenol-based moiety. Such crosslinkable polymeric compositions can be employed in various articles of manufacture, such as in the wire and cable industry. 1. A silane-crosslinkable polymeric composition , comprising:a polyolefin having hydrolyzable silane groups;an acidic silanol condensation catalyst; anda phenolic antioxidant having a phenol-based moiety fused with a cyclic ether,wherein the oxygen atom of said cyclic ether is located in the para position relative to the hydroxyl group of said phenol-based moiety.3. The silane-crosslinkable polymeric composition of claim 2 , wherein each of R claim 2 , R claim 2 , R claim 2 , and Rare individually hydrogen or an aliphatic moiety having from 1 to 8 carbon atoms claim 2 , wherein Ris an aliphatic moiety having from 10 to 20 carbon atoms.4. The silane-crosslinkable polymeric composition of claim 2 , wherein each of R claim 2 , R claim 2 , R claim 2 , and Ris individually hydrogen or a Cto Cstraight-chain alkyl group claim 2 , wherein Ris a Cto Csaturated or unsaturated aliphatic chain having one or more branches.5. The silane-crosslinkable polymeric composition of claim 1 , further comprising an ester-functionalized thioether.8. The silane-crosslinkable polymeric composition of claim 5 , wherein said ester-functionalized thioether is selected from the group consisting of distearyl thiodipropionate claim 5 , dilauryl thiodipropionate claim 5 , pentaerythritol tetrakis(β-laurylthiopropionate) claim 5 , thiobis-[2-tert-butyl-5-methyl-4 claim 5 ,1-phenylene]bis [3-(dodecylthio)propionate] claim 5 , and combinations of two or more thereof.9. The silane-crosslinkable ...

Peroxide-Crosslinkable Compositions and Processes for Their Manufacture

A peroxide-crosslinkable composition comprising: 116.-. (canceled)17. A peroxide-crosslinkable composition comprising:(A) a peroxide-crosslinkable polyethylene;(B) 0.0005 to 0.03 wt % of a low molecular weight, or low melting, or liquid nitrogenous base comprising a hindered amine stabilizer, the low molecular weight, or low melting, or liquid nitrogenous base having a molecular weight equal to or less than 1,400 g/mol and a melting temperature equal to or less than 95° C.;(C) one or more antioxidants (AO); and(D) optionally an organic peroxide.18. The composition of in which the low molecular weight claim 17 , or low melting claim 17 , or liquid nitrogenous base has a molecular weight equal to or less than 1 claim 17 ,000 g/mol.19. The composition of in which the antioxidant comprises a hindered phenol.20. The composition of in which the antioxidant comprises a thioester.21. The composition of in which the antioxidant comprises a hindered phenol and a thioester.22. The composition of in which the antioxidant comprises tetrakis[methylene(3 claim 17 ,5-di-tert-butyl-4-hydroxyhydro-cinnamate)]methane; 4 claim 17 ,4′-thiobis-(3-methyl-6-t-butylphenol); and distearylthiodipropionate (DSTDP).23. The composition of in which the antioxidant comprises [1 claim 17 ,3 claim 17 ,5-tris(4-tert-butyl-3-hydroxy-2 claim 17 ,6-dimethylbenzyl)-1 claim 17 ,3 claim 17 ,5-triazine-2 claim 17 ,4 claim 17 ,6-(1H claim 17 ,3H claim 17 ,5H)-trione]; and distearylthiodipropionate (DSTDP).24. The composition of comprising from 0.5 wt % to 2.5 wt % of the organic peroxide.25. A wire or cable comprising a sheath comprising the composition of .26. A process for making a peroxide-crosslinkable pellet claim 17 , the process comprising the steps of: (A) a peroxide-crosslinkable polymer;', '(B) a low molecular weight, or low melting, or liquid nitrogenous base, and', '(C) optionally, an antioxidant (AO);, '(1) forming a homogeneous melt of(2) passing the homogeneous melt of (1) through a filter ...

Composition with Balance of Dissipation Factor and Additive Acceptance

A composition comprises a) at least one ethylene-based copolymer comprising units derived from ethylene and from greater than 0 wt % to less than or equal to 3.5 wt %, based on the total weight of the ethylene-based copolymer, of units derived from at least one polar comonomer; b) at least one antioxidant; c) an organic peroxide; d) optionally, at least one co-agent; and e) optionally, at least one water tree retardant or electrical tree retardant. The composition comprises from 0 wt % to less than 1 wt %, based on the total weight of the composition, of olefin-based polymers other than the ethylene-based copolymer. The composition has a dissipation factor of from 0% to less than or equal to 0.1% at a temperature of 120° C. and an electrical stress of 6 kV/mm. The composition is suitable for use as an insulation layer in cables. 1. A composition comprising:a) at least one ethylene-based copolymer comprising units derived from ethylene and from greater than 0 wt % to less than or equal to 3.5 wt %, based on the total weight of the ethylene-based copolymer, of units derived from at least one polar comonomer;b) at least one antioxidant;c) an organic peroxide,d) optionally, at least one co-agent; ande) optionally, at least one tree retardant,wherein the composition comprises from 0 wt % to less than 1 wt %, based on the total weight of the composition, of olefin-based polymers other than the ethylene-based copolymer.2. The composition of claim 1 , wherein the composition consists essentially of:a) the ethylene-based copolymer;b) the at least one antioxidant;c) the organic peroxide;d) optionally, the at least one co-agent; ande) optionally, the at least one tree retardant.3. The composition of claim 2 , wherein the ethylene-based copolymer is a bipolymer of ethylene and the at least one polar comonomer.4. The composition of claim 3 , wherein the at least one polar comonomer is selected from the group consisting of a (C1-C4) alkyl acrylate claim 3 , vinyl acetate claim 3 ...

CURABLE SEMICONDUCTING COMPOSITION

A rubberless, strippable, semiconducting composition that includes an ethylene-(carboxylic ester) copolymer having a low comonomeric unit content, carbon black, and a strippability additive combination comprising an amide wax and a silicone oil. Also provided are a cured product made from the composition, methods of making and using same, and articles containing same. 1. A peroxide-curable semiconducting composition comprising 50 to 78 weight percent (wt %) of (A) a crosslinkable ethylene-vinyl acetate copolymer , having a vinyl acetate monomeric unit content of from 25 to 40 wt % (crosslinkable host copolymer); 20 to 48 wt % of (B) carbon black; 0.1 to 2.5 wt % of (C) an amide wax; 0.1 to 2.5 wt % of (D) a silicone oil; wherein the sum of wt % (C) +wt % (D) is from 1.0 to 5.0 wt %; 0.1 to 1.5 wt % of (E) an antioxidant; and 0.1 to 1.5 wt % of (F) an organic peroxide; wherein all wt % are based on total weight of the peroxide-curable semiconducting composition and wherein total weight of the peroxide-curable semiconducting composition is 100.0 wt %.2. The peroxide-curable semiconducting composition of wherein the (A) crosslinkable ethylene-vinyl acetate copolymer is an ethylene vinyl acetate copolymer having a vinyl acetate monomeric unit content of 26 to 35 wt % and/or a melt index (190° C. claim 1 , 2.16 kilograms (kg)) (“I”) of from 1 to 80 grams per 10 minutes (g/10 min.) measured according to ASTM D1238-04.3. The peroxide-curable semiconducting composition of wherein the (C) amide wax is stearamide claim 1 , oleamide claim 1 , erucamide claim 1 , ethylene bis(stearamide) claim 1 , ethylene bis(oleamide) claim 1 , ethylene bis(erucamide) claim 1 , behenamide claim 1 , oleyl palmitamide claim 1 , and a combination of any two or more thereof; and/or the (D) silicone oil is (i) a polydiorganosiloxane fluid wherein each organo group is independently methyl claim 1 , ethyl claim 1 , vinyl claim 1 , or phenyl; or (ii) a poly(methyl claim 1 ,phenyl)siloxane fluid claim ...

STABILIZED MOISTURE-CURABLE POLYMERIC COMPOSITIONS

Silane-crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an acidic silanol condensation catalyst, and a phenolic antioxidant. The phenolic antioxidant comprises two sulfur-containing radicals, one located at the ortho position and the other located at the para position relative to the hydroxyl group of the phenol. Such crosslink able polymeric compositions can be employed in various articles of manufacture, such as in the wire and cable industry. 4. The silane-crosslinkable polymeric composition of claim 3 , wherein Rand Rare straight-chain aliphatic moieties having 8 carbon atoms.5. The silane-crosslinkable polymeric composition of claim 1 , further comprising an ester-functionalized thioether.8. The silane-crosslinkable polymeric composition of claim 5 , wherein said ester-functionalized thioether is selected from the group consisting of distearyl thiodipropionate claim 5 , dilauryl thiodipropionate claim 5 , pentaerythritol tetrakis(β-laurylthiopropionate) claim 5 , thiobis-[2-tert-butyl-5-methyl-4 claim 5 ,1-phenylene]bis [3-(dodecylthio)propionate] claim 5 , and combinations of two or more thereof.9. The silane-crosslinkable polymeric composition of claim 1 , wherein said polyolefin having hydrolyzable silane groups is selected from the group consisting of (i) an interpolymer of ethylene and a hydrolyzable silane claim 1 , (ii) an interpolymer of ethylene claim 1 , one or more Cor higher α-olefins and/or unsaturated esters claim 1 , and a hydrolyzable silane claim 1 , (iii) a homopolymer of ethylene having a hydrolyzable silane grafted to its backbone claim 1 , and (iv) an interpolymer of ethylene and one or more C3 or higher α-olefins and/or unsaturated esters claim 1 , such interpolymer having a hydrolyzable silane grafted to its backbone.10. A coated conductor claim 1 , comprising:(a) conductor; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(b) a crosslinked polymeric composition prepared from the silane- ...

MOISTURE CURABLE POLYOLEFIN COMPOSITIONS

A moisture curable polymer formulation comprising a (hydrolyzable silyl group)-functional polyolefin prepolymer, an acidic condensation catalyst, and a secondary diarylamine. A method of making the formulation; a moisture-cured polyolefin composition prepared therefrom; a manufactured article comprising or made from the formulation; and a method of using the manufactured article. 1. A moisture-curable polyolefin composition comprising constituents (A) to (C): (A) a (hydrolyzable silyl group)-functional polyolefin prepolymer , (B) an acidic condensation catalyst , and (C) a secondary diarylamine of formula (I): (R—Ar)NH (I) , wherein each Ar is benzene-1 ,4-diyl or both Ar are bonded to each other and taken together with the NH of formula (I) constitute a carbazol-3 ,6-diyl; and each Ris independently (C-C)hydrocarbyl; wherein constituent (C) secondary diamine of formula (I) is from >0.200 weight percent (wt %) to 0.500 wt % based on total weight of the moisture-curable polyolefin composition.2. The composition of wherein in the (C) secondary diarylamine of formula (I): (i) each Ar is benzene-1 claim 1 ,4-diyl; (ii) both Ar are bonded to each other and taken together with the NH of formula (I) constitute a carbazol-3 claim 1 ,6-diyl; (iii) each Ris independently (C-C) hydrocarbyl; (iv) each Ris independently (C-C)hydrocarbyl; (v) each Ris independently benzyl claim 1 , 1-phenylethyl claim 1 , or 1-methyl-1-phenylethyl; (vi) 1-methyl-1-phenylethyl; (vii) both (i) and any one of (iii) to (vi); or (viii) both (ii) and any one of (iii) to (vi).3. The composition of wherein the (C) secondary diamine of formula (I) is: (i) from 0.220 wt % to 0.500 wt % claim 1 , (ii) from 0.250 wt % to 0.50 wt % claim 1 , or (iii) from 0.220 wt % to 0.40 wt %; all based on total weight of the moisture-curable polyolefin composition.4. The composition of wherein the (B) acidic condensation catalyst is (i) an organosulfonic acid claim 1 , an organophosphonic acid claim 1 , or a hydrogen ...

Polyolefin and polyvinylpyrrolidone formulation

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.

Peroxide-crosslinkable compositions and processes for their manufacture

A peroxide-crosslinkable composition comprising: (A) A peroxide-crosslinkable polymer, e.g., a polyethylene; (B) A nitrogenous base, e.g., a low molecular weight, or low melting, or liquid nitrogenous base such as triallyl cyanurate (TAC); and (C) One or more antioxidants (AO), e.g., distearylthiodipropionate (DSTDP). The composition is useful in the manufacture of insulation sheaths for high and extra high voltage wire and cable.

Strippable semi-conductive insulation shield

Swellable nano-particles, such as layered nano-particles, which are treated or contacted with one or more swelling agents, such as a surfactant, improves the thermal stability of insulation shield in power cables and also permits the use of low levels of NBR and vinyl-acetate EVA copolymers in such insulation shield.

Peroxide-crosslinkable compositions and processes for their manufacture

A peroxide-crosslinkable composition comprising: (A) A peroxide-crosslinkable polymer, e.g., a polyethylene; (B) A nitrogenous base, e.g., a low molecular weight, or low melting, or liquid nitrogenous base such as triallyl cyanurate (TAC); and (C) One or more antioxidants (AO), e.g., distearylthiodipropionate (DSTDP). The composition is useful in the manufacture of insulation sheaths for high and extra high voltage wire and cable.

Peroxide-crosslinkable compositions and processes for their manufacture

The present invention relates to a peroxide-crosslinkable composition comprising: (A) a peroxide-crosslinkable polyethylene; (B) 0.0005 wt% to 0.03 wt% triallyl cyanurate; (C) one or more antioxidants (AO); and (D) optionally an organic peroxide.

Peroxide-crosslinkable compositions and processes for their manufacture

A peroxide-crosslinkable composition comprising: (A) A peroxide-crosslinkable polymer, e.g., a polyethylene; (B) A nitrogenous base, e.g., a low molecular weight, or low melting, or liquid nitrogenous base such as triallyl cyanurate (TAC); and (C) One or more antioxidants (AO), e.g., distearylthiodipropionate (DSTDP). The composition is useful in the manufacture of insulation sheaths for high and extra high voltage wire and cable.

Composition with balance of dissipation factor and additive acceptance

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.

Heat aging-resistant and flexible polyolefin formulation

A polyolefin formulation comprising constituents (A) to (E) in the following amounts: from 15.0 to 55.0 weight percent (wt %) of (A) a polypropylene homopolymer; from 77.9 to 30.0 wt % of (B) a poly(ethylene-co-1-alkene) copolymer; from 3.0 to 6.5 wt % of (C) an ethylene/propylene diblock copolymer; from 4.0 to 8.0 wt % of (D) a saturated-and-aromatic (C14-C60)hydrocarbon; and from 0.1 to 1.5 wt % of (E) an antioxidant; wherein the wt % of (B) divided by the wt % (A) is a mass ratio of from 5.0:1.0 to 0.50:1.0; and wherein the amounts of constituents (A), (B), and (C) total from 88.0 to 95.9 wt % of the polyolefin formulation; and wherein the amounts of constituents (A) to (E) total from 92.1 to 100.0 wt % of the polyolefin formulation.

Method for producing water tree-resistant, trxlpe-type cable sheath

TRXLPE-type cable sheaths are prepared by a method in which a solid polymer is mixed with a liquid water tree-resistant agent either by dosing or direct injection. In the dosing method, the solid polymer, e.g., high pressure LDPE, is sprayed or otherwise contacted with the liquid agent, e.g., PEG, the agent is allowed to absorb into the polymer, and the polymer with absorbed agent is then fed to an extrusion apparatus for extrusion over a sheathed or unsheathed wire or optic fiber. In the direct injection method, the solid polymer is first fed to an extrusion apparatus, and the liquid agent is sprayed or otherwise contacted with the polymer before the two are blended with one another through the action of the mixing elements of the apparatus.

Medium Voltage Cable Insulation

Compositions comprising: A. Ethylene-based polymer, e.g., LDPE; B. Polyalkylene glycol, e.g., PEG; C. Tertiary hindered amine stabilizer; D. Sulphur-containing hindered phenol antioxidant; E. Peroxide; and F. Optional coagent are useful in the preparation of TRXLPE insulation for medium voltage cable that exhibits a commercially desirable balance of long term heat aging retardancy and water-tree resistance.

Polymeric compositions with voltage stabilizer additive

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent is a diphenoxybenzene and/or a benzanilide. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Coated conductor with voltage stabilized inner layer

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent contains a triazine. The triazine may include a substituent that enables keto-enol tautomerism, which provides the voltage stabilizing agent with additional energy dissipation capacity. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Coated conductor with voltage-stabilized inner layer

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent, which is selected from one or more of a group of three specific triazine compounds. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Method for producing water tree-resistant, TRXLPE-type cable sheath

TRXLPE-type cable sheaths are prepared by a method in which a solid polymer is mixed with a liquid water tree-resistant agent either by dosing or direct injection. In the dosing method, the solid polymer, e.g., high pressure LDPE, is sprayed or otherwise contacted with the liquid agent, e.g., PEG, the agent is allowed to absorb into the polymer, and the polymer with absorbed agent is then fed to an extrusion apparatus for extrusion over a sheathed or unsheathed wire or optic fiber. In the direct injection method, the solid polymer is first fed to an extrusion apparatus, and the liquid agent is sprayed or otherwise contacted with the polymer before the two are blended with one another through the action of the mixing elements of the apparatus.

Medium voltage cable insulation

Compositions comprising: A. 10-99 wt% Ethylene-based polymer; B. 0.1-1 wt% Polyalkylene glycol; C. 0.1-1 wt% Tertiary hindered amine stabilizer; D. 0.1-1 wt% Sulphur-containing hindered phenol antioxidant; E. 0.1-3 wt% Peroxide; and F. 0-1 wt% Coagent; in which the sulphur-containing hindered phenol antioxidant is a thiobisphenol, are useful in the preparation of TRXLPE insulation for medium voltage cable that exhibits a commercially desirable balance of long term heat aging retardancy and water-tree resistance.

Medium voltage cable insulation

Compositions comprising: A. Ethylene-based polymer, e.g., LDPE; B. Polyalkylene glycol, e.g., PEG; C. Tertiary hindered amine stabilizer; D. Sulphur-containing hindered phenol antioxidant; E. Peroxide; and F. Optional coagent are useful in the preparation of TRXLPE insulation for medium voltage cable that exhibits a commercially desirable balance of long term heat aging retardancy and water-tree resistance.

Medium voltage cable insulation

Compositions comprising: A. Ethylene-based polymer, e.g., LDPE; B. Polyalkylene glycol, e.g., PEG; C. Tertiary hindered amine stabilizer; D. Sulphur-containing hindered phenol antioxidant; E. Peroxide; and F. Optional coagent are useful in the preparation of TRXLPE insulation for medium voltage cable that exhibits a commercially desirable balance of long term heat aging retardancy and water-tree resistance.

Polymeric compositions with voltage stabilizer additive

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent is a diphenoxybenzene and/or a benzanilide. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Coated conductor with voltage stabilized inner layer

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent contains a triazine. The triazine may include a substituent that enables keto-enol tautomerism, which provides the voltage stabilizing agent with additional energy dissipation capacity. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Polymeric compositions with voltage stabilizer additive

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent is a benzanilide. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Polymeric compositions with voltage stabilizer additive

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent is a diphenoxybenzene and/or a benzanilide. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Coated conductor with voltage-stabilized inner layer

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent, which is selected from one or more of a group of three specific triazine compounds. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Coated conductor with voltage-stabilized inner layer

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent, which is selected from one or more of a group of three specific triazine compounds. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Coated conductor with voltage-stabilized inner layer

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent, which is selected from one or more of a group of three specific triazine compounds. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Cable insulation compositions comprising a sulfur-containing second antioxidant

The process for making extra high voltage cable insulation is improved by using a composition comprising in weight percent based on the weight of the composition: (A) 95 to 99.9% of an ethylene-based polymer; (B) 0.2 to 2.5% peroxide; (C) 0.01 to 0.5% of a sulfur-containing first antioxidant having at least one —S(CH 2 ) 2 CO 2 R group, wherein R is C6 to C20 alkyl; (D) 0.001 to 0.009%) of a sulfur-containing second antioxidant that does not contain a —S(CH 2 ) 2 CO 2 R group, wherein R is a C6 to C20 alkyl; (E) Optionally, an organic nitrogenous base; and (F) Optionally, a phenolic third antioxidant that does not contain a —S(CH 2 ) 2 CO 2 R group, wherein R is a C6 to C20 alkyl.

Cable insulation compositions comprising a phosphorus-containing antioxidant

The process for making extra high voltage cable insulation is improved by using a composition comprising in weight percent based on the weight of the composition: (A) 95 to 99.9% of an ethylene-based polymer; (B) 0.2 to 2.5% peroxide; (C) 0.01 NI to 0.5% of a sulfur-containing first antioxidant having at least one —S(CH2)2CO2R group, wherein R is a C6 to C20 alkyl; (D) 0.001 to 0.009%) of a phosphorus-containing second antioxidant that does not contain a —S(CH2)2C02R group, wherein R is a C6 to C20 alkyl; (E) Optionally, an organic nitrogenous base; and (F) Optionally, a phenolic third antioxidant that does not contain a —S(CH2)2C02R group, wherein R is a C6 to C20 alkyl.

Composicion de mezcla madre aditiva a base de poliolefina semicristalina.

Una composición de mezcla madre aditiva que comprende una resina portadora de poliolefina semicristalina y un paquete de aditivos que comprende un pirorretardante. Una composición de poliolefina curable por humedad que comprende la composición de mezcla madre aditiva y un prepolímero de poliolefina con funcionalidad (grupo sililo hidrolizable). Un método para elaborar las composiciones; una composición de poliolefina curada por humedad preparada a partir de este; un artículo fabricado que comprende o está hecho a partir de la formulación; y un método de uso del artículo fabricado.

Strippable semi-conductive insulation shield

Swellable nano-particles, such as layered nano-particles, which are treated or contacted with one or more swelling agents, such as a surfactant, improves the thermal stability of insulation shield in power cables and also permits the use of low levels of NBR and vinyl-acetate EVA copolymers in such insulation shield.

Peroxide-crosslinkable compositions and processes for their manufacture

A peroxide-crosslinkable composition comprising: (A) A peroxide-crosslinkable polymer, e.g., a polyethylene; (B) A nitrogenous base, e.g., a low molecular weight, or low melting, or liquid nitrogenous base such as triallyl cyanurate (TAC); and (C) One or more antioxidants (AO), e.g., distearylthiodipropionate (DSTDP). The composition is useful in the manufacture of insulation sheaths for high and extra high voltage wire and cable.

Medium voltage cable insulation

coated conductor and polymeric composition

CONDUTOR REVESTIDO E COMPOSIÇÃO E POLIMÉRICA. São descritas composições poliméricas com resistência melhorada à disrupção. As composições poliméricas contém uma poliolefina e um agente estabilizante de tensão. O agente estabilizante de tensão contém uma triazina. A triazina pode incluir uma substituinte que permite taumerismo ceto-enólico, o que provê ao agente estabilizante de tensão capacidade adicional de dissipação de energia. As composições poliméricas da presente invenção exíbem resistência melhorada à disrupção quando aplicadas como camada isolante para cabos de força. COATED AND COMPOSITION AND POLYMERIC CONDUCTOR. Polymeric compositions with improved resistance to disruption are described. The polymeric compositions contain a polyolefin and a tension stabilizing agent. The stress stabilizer contains a triazine. The triazine can include a substituent that allows keto-enolic taumerism, which provides the voltage stabilizer with additional energy dissipating capacity. The polymeric compositions of the present invention exhibit improved resistance to disruption when applied as an insulating layer for power cables.

Polymeric compositions with voltage stabilizer additive

Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent is a diphenoxybenzene and/or a benzanilide. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

Composiciones de aislamiento de cables que comprenden un antioxidante que contiene fosforo.

La presente invención se relaciona con un proceso para elaborar un aislante de cable de extra alto voltaje que se mejora usando una composición que comprende, en porcentaje en peso, basado en el peso de la composición: (A) 95 a 99.9% de un polímero a base de etileno; (B) 0.2 a 2.5% de peróxido; (C) 0.01 a 0.5% de un primer antioxidante que contiene azufre que tiene por lo menos un grupo -S(CH2)2CO2R, en donde R es un alquilo de C6 a C20; (D) 0.001 a 0.009% de un segundo antioxidante que contiene fósforo que no contiene un grupo - S(CH2)2CO2R, en donde R es un alquilo de C6 a C20; (E) opcionalmente, una base nitrogenada orgánica; y (F) opcionalmente, un tercer antioxidante fenólico que no contiene un grupo -S(CH2)2CO2R, en donde R es un alquilo de C6 a C20.

Cable Comprising a Shear Thickening Composition

Shear thickening compositions can function in an energy or communications transmission cable to provide enhanced protection against externally applied forces, e.g., cutting or puncture from a shovel. As a free or bound layer, or when used via impregnation into a substrate used for an internal component or wrap, the shear thickening composition provides protection against mechanical damage that far surpasses conventional technologies. In foamable compositions for cable components, the shear thickening composition provides enhanced integrity of the polymer melt for enhanced foam performance. As a flame retardant component, the shear thickening composition provides an enhanced char formation mechanism for superior flame retardance.

Elastomer-based polymeric compositions having amorphous silica fillers

Polymeric compositions suitable for use as insulation materials in electrical applications. Such polymeric compositions comprise an ethylene/α-olefin-based elastomer and a filler, where the filler consists essentially of an amorphous silica. Such polymeric compositions can optionally further comprise an ethylene-based thermoplastic polymer. Also disclosed are coated conductors comprising such polymeric compositions as insulation materials.

Crosslinkable polymeric compositions with amine-functionalized interpolymers, methods for making the same, and articles made therefrom

Crosslinkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, and an amine-functionalized interpolymer. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables.

Stabilized moisture-curable polymeric compositions

Silane-crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an acidic silanol condensation catalyst, and a phenolic antioxidant having at least one ester-containing moiety. Such crosslinkable polymeric compositions can be employed in various articles of manufacture, such as in the wire and cable industry.

Processes for preparing cables with crosslinked insulation layer and cables for same

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.

Stabilized moisture-curable polymeric compositions

Silane-crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an acidic silanol condensation catalyst, and a phenolic antioxidant. The phenolic antioxidant has a phenol-based moiety fused with a cyclic ether where the oxygen atom of the cyclic ether is located in the para position relative to the hydroxyl group of the phenol-based moiety. Such crosslinkable polymeric compositions can be employed in various articles of manufacture, such as in the wire and cable industry.

Stabilized moisture-curable polymeric compositions

Silane-crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an acidic silanol condensation catalyst, and a phenolic antioxidant. The phenolic antioxidant comprises two sulfur-containing radicals, one located at the ortho position and the other located at the para position relative to the hydroxyl group of the phenol. Such crosslinkable polymeric compositions can be employed in various articles of manufacture, such as in the wire and cable industry.

Stabilized moisture-curable polymeric compositions

Silane-crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an acidic silanol condensation catalyst, a phenolic antioxidant, and an ester-functionalized thioether. Such crosslinkable polymeric compositions can be employed in various articles of manufacture, such as in the wire and cable industry.

Polyolefin and polyvinylpyrrolidone formulation

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.

Composite of non-polar organic polymer and ultra-low-wettability carbon black

A semiconductive composite material consisting essentially of a non-polar organic polymer and an electrical conducting effective amount of an ultra-low-wettability carbon black. Also a method of making the composite material; a crosslinked polyethylene product made by curing the composite material; manufactured articles comprising a shaped form of the inventive composite material or product; and methods of using the inventive composite material, product, or articles.

Composite of non-polar organic polymer, polar organic polymer, and ultra-low-wettability carbon black

A semiconductive composite material comprising a non-polar organic polymer, a polar organic copolymer, and an electrical conducting effective amount of an ultra-low-wettability carbon black. Also a method of making the composite material; a crosslinked polyethylene product made by curing the composite material; manufactured articles comprising a shaped form of the inventive composite material or product; and methods of using the inventive composite material, product, or articles.

Composite of polar organic copolymer and ultra-low-wettability carbon black

A semiconductive composite material consisting essentially of a polar organic copolymer and an electrical conducting effective amount of an ultra-low-wettability carbon black. Also a method of making the composite material; a crosslinked polyethylene product made by curing the composite material; manufactured articles comprising a shaped form of the inventive composite material or product; and methods of using the inventive composite material, product, or articles.

Polyolefin composition

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.

Polyolefin formulation

A crosslinkable polyolefin formulation comprises (A) a polyethylene polymer and (B) an arylketone of formula (I) as defined herein; products made therefrom; methods of making and using same; and articles containing same.

Polyethylene composition with treeing retardants

A polyethylene composition comprising (A) an ethylene-based (co) polymer, (B) a styrenic unit-containing copolymer, and (C) a polyorganosiloxane. Also a method of making the composition; a crosslinked polyethylene product made by curing the composition; manufactured articles comprising a shaped form of the inventive composition or product; and methods of using the inventive composition, product, or articles.

Cable comprising a shear thickening composition

Shear thickening compositions can function in an energy or communications transmission cable to provide enhanced protection against externally applied forces, e.g., cutting or puncture from a shovel. As a free or bound layer, or when used via impregnation into a substrate used for an internal component or wrap, the shear thickening composition provides protection against mechanical damage that far surpasses conventional technologies. In foamable compositions for cable components, the shear thickening composition provides enhanced integrity of the polymer melt for enhanced foam performance. As a flame retardant component, the shear thickening composition provides an enhanced char formation mechanism for superior flame retardance.

Stabilized moisture-curable polymeric compositions

Silane-crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an acidic silanol condensation catalyst, and a phenolic antioxidant. The phenolic antioxidant has a phenol-based moiety fused with a cyclic ether where the oxygen atom of the cyclic ether is located in the para position relative to the hydroxyl group of the phenol-based moiety. Such crosslinkable polymeric compositions can be employed in various articles of manufacture, such as in the wire and cable industry.

Stabilized moisture-curable polymeric compositions

Silane-crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an acidic silanol condensation catalyst, and a phenolic antioxidant. The phenolic antioxidant comprises two sulfur-containing radicals, one located at the ortho position and the other located at the para position relative to the hydroxyl group of the phenol. Such crosslink able polymeric compositions can be employed in various articles of manufacture, such as in the wire and cable industry.