Abstract: The present invention relates to a flame retardant polymer composition comprising at least the following components A) 2.0 to 49.8 wt.-% based on the overall weight of the polymer composition of a copolymer comprising ethylene units and units selected from the group consisting of methyl acrylate, methyl methacrylate and mixtures thereof; B) 0.1 to 6.0 wt.-% based on the overall weight of the polymer composition of a polyethylene and/or polypropylene containing units originating from maleic acid anhydride; C) 0.1 to 5.0 wt.-% based on the overall weight of the polymer composition of a silicone fluid and/or a silicon gum; D) 50.0 to 70.0 wt.-% based on the overall weight of the polymer composition of a magnesium hydroxide; and E) 0 to 17.0 wt.

Abstract: A transmission cable includes a conductor or a bundle of conductors extending along a longitudinal axis, which is circumferentially covered by an insulation layer having an extruded insulation material, whereby the transmission cable passes the electrical type test as specified in Cigré TB496, whereby the rated voltage U0 is 450 kV or more. The type test includes subjecting the power cable to a DC voltage of 1.85*U0 during 10 to 15 cycles at negative polarity, followed by a polarity reversal with another 10 to 15 cycles at positive polarity at a DC voltage of 1.85*U0, followed by additional 2 to 5 cycles during at least 4 to 10 days at positive polarity, and wherein U0 is 450 kV, or 525 kV, or more.

Abstract: A transmission cable includes a conductor or a bundle of conductors extending along a longitudinal axis, which is circumferentially covered by an insulation layer having an extruded insulation material, whereby the transmission cable passes the electrical type test as specified in Cigré TB496, whereby the rated voltage U0 is 450 kV or more. The type test includes subjecting the power cable to a DC voltage of 1.85*U0 during 10 to 15 cycles at negative polarity, followed by a polarity reversal with another 10 to 15 cycles at positive polarity at a DC voltage of 1.85*U0, followed by additional 2 to 5 cycles during at least 4 to 10 days at positive polarity, and wherein U0 is 450 kV, or 525 kV, or more.

Abstract: The present invention relates to a flame retardant polymer composition comprising (A) an ethylene copolymer comprising alkyl acrylate comonomer units, (B) uncoated aluminum hydroxide as inorganic filler, and (C) an ethylene copolymer comprising maleic anhydride units in an amount of 0.6 to 5 wt. %, an article comprising such a composition, the use of such a composition for producing a layer in a wire or cable and the use of an ethylene copolymer comprising maleic anhydride units for producing a wire or cable fulfilling the requirements of class D of the FIPEC test according to prEN 50399:2007./.

Abstract: The present invention relates to a flame retardant polymer composition comprising (A) an ethylene copolymer comprising alkyl acrylate comonomer units, (B) uncoated aluminum hydroxide as inorganic filler, and (C) an ethylene copolymer comprising maleic anhydride units in an amount of 0.6 to 5 wt. %, an article comprising such a composition, the use of such a composition for producing a layer in a wire or cable and the use of an ethylene copolymer comprising maleic anhydride units for producing a wire or cable fulfilling the requirements of class D of the FIPEC test according to prEN 50399:2007./.

Abstract: The present invention relates to a flame retardant polymer composition comprising (A) at least one polar olefin copolymer comprising one or more comonomer units selected from (meth)-acrylate and/or (meth)-acrylic acid, (B) a silicone-group containing compound, and (C) an inorganic filler which is neither a hydroxide nor a substantially hydrated compound in an amount of 46 to 70 wt % of the total weight of the polymer composition, wherein the at least one olefin copolymer (A) comprises one or more comonomer units selected from (meth)-acrylate and/or (meth)-acrylic acid in an amount of 9.0 to 60 wt % of the polar olefin copolymer. to an article, in particular a wire or cable, comprising said flame retardant polymer composition, and to the use of said composition for the production of a layer of a wire or cable.

Abstract: The present invention relates to a flame retardant polymer composition comprising (A) an ethylene copolymer comprising alkyl acrylate comonomer units, (B) coated aluminum hydroxide as filler material (C) a nanofiller to an article, in particular a wire or cable, comprising said flame retardant polymer composition, and to the use of said composition for the production of a layer of a wire or cable. The invention is furthermore directed to a process for producing a flame retardant polymer composition.

Abstract: The present invention relates to a flame retardant polymer composition comprising (A) a polar ethylene copolymer comprising alkyl acrylate comonomer units, (B) coated aluminum hydroxide as filler material to an article, in particular a wire or cable, comprising said flame retardant polymer composition, and to the use of said composition for the production of a layer of a wire or cable. The invention is furthermore directed to a process for producing a flame retardant polymer composition.

Abstract: A crosslinkable silane containing polyethylene composition, an insulated electric cable, and a process for the preparation of the composition are described. The crosslinkable silane containing polyethylene composition has a silane content of about 0.1 to 10% by weight, and at least one silanol condensation catalyst, and is characterised in that the composition has a branching parameter (g?) value of at least 0.65. The insulation of the electrical cable comprise the composition as a polymer. The process is characterised in that it is a high pressure polymerisation process at a peak temperature of at most 260° C.