Borealis Ag

Borealis Technology Oy

Daniel Nilsson

Annika Smedberg

Villgot Englund

Bill Gustafsson

Virginie Eriksson

Fredrik Skogman

Niklas Thorn

Emil Hjärtfors

Jerker Martensson

Jerker MÅRTENSSON

The invention provides a semiconductive polymer composition comprising (a) a base polymer of ethylene vinyl acetate copolymer, (b) at least 25 wt % carbon black; and (c) at least 1 wt % of an ethylene vinyl acetate wax.

Semiconductive polymer composition

The invention relates to a semiconductive polymer composition comprising a polymer component, a conducting component and a crosslinking agent, wherein the polymer component comprises a polar polyethylene and the crosslinking agent comprises an aliphatic mono- or bifunctional peroxide or, alternatively, a monofunctional peroxide containing an aromatic group, and the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z≤Z≤Z, wherein Zis 0.01 and Zis 5.0, an article being e.g. a cable, e.g. a power cable, and processes for producing a semiconductive polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.

The invention relates to a polymer composition comprising a polyethylene and a crosslinking agent, characterized in that the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B&#x2264;B, wherein Bis 0.88, when measured prior to crosslinking according to method ASTM D6248-98; and in that the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z&#x2264;Z, wherein Zis 0.30, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.

Crosslinkable composition without antioxidant and beneficial methane formation with reduced crosslinking

The invention relates to a polymer composition comprising a polyethylene and a crosslinking agent, wherein the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B&#x2264;B, wherein Bis 0.88, when measured prior to crosslinking according to method ASTM D624898; and wherein the crosslinking agent is present in an amount which Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z&#x2264;Z, wherein Zis 0.60, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.

Polymer composition comprising a polyethylene

The invention relates to a cable comprising layer(s), which layer(s) is/are obtained from a polymer composition comprising a polyethylene, a crosslinking agent and antioxidant(s), characterized in that the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B&#x2264;B, wherein Bis 0.12, when measured prior to crosslinking according to method ASTM D6248-98, the crosslinking agent is present in an amount which is Z wt %, prior to crosslinking, based on the total amount (100 wt %) of the polymer composition, and Z&#x2264;Z&#x2264;Z, wherein Zis 0.005 and Zis 2.0, and that the antioxidant(s) is/are nitrogen containing antioxidant(s) being present in an amount which is W wt %, prior to crosslinking, based on the total amount (100 wt %) of the polymer composition, and W&#x2264;W&#x2264;W, wherein Wis 0.005 and Wis 1.0, the cable, e.g. a power cable, and processes for producing the cable; the cable useful in different end applications, such as wire and cable (W&C) applications.

Cable made from crosslinkable composition with antioxidant and beneficial methane formation

The invention relates to a polymer composition comprising a polyethylene, a crosslinking agent and antioxidant(s), wherein the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B&#x2264;B, wherein Bis 0.12, when measured prior to crosslinking according to method ASTM D6248-98, the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z&#x2264;Z&#x2264;Z, wherein Zis 0.005 and Zis 2.0, and the antioxidant(s) is/are nitrogen containing antioxidant(s) being present in an amount which is W wt %, based on the total amount (100 wt %) of the polymer composition, and W&#x2264;W&#x2264;W, wherein Wis 0.005 and Wis 1.0, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.

Crosslinkable composition with antioxidant and methane formation and article

The invention relates to a cable comprising layer(s), which layer(s), is/are obtained from a polymer composition, wherein the polymer composition comprises a polyethylene and a crosslinking agent, wherein the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B&#x2264;B, wherein Bis 0.88, when measured prior to crosslinking according to method ASTM D6248-98; and wherein the crosslinking agent is present in an amount which is Z wt %, prior to crosslinking, based on the total amount (100 wt %) of the polymer composition, and Z&#x2264;Z, wherein Zis 0.60, the cable, e.g. being a power cable, and processes for producing the cable; the cable useful in different end applications, such as wire and cable (W&C) applications.

Cable made from crosslinkable composition without antioxidant and with beneficial methane formation

The invention relates to a method for modifying a polymer composition, to modified polymer compositions, to an article, preferably wire or cable, comprising said modified polymer composition, to a process for preparing an article, preferably a wire or cable, to the use of said modified polymer in one or more layers of a wire or cable, as well as to a compound for use as a radical generating compound for modifying a polymer composition.

Polymer composition

Compounds for use as radical generating agents for modifying polymer compositions, wherein the modified polymer compositions and the process for preparing the polymer compositions are utilized with wires or cables thereby forming one or more layers of a wire of the cable.

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Stenungsund, Sweden

Daniel Nilsson