Abstract: The invention relates to a foamable polymer composition comprising a polyolefin polymer which polyolefin polymer does not bear silane moieties and comprises 20 to 99.99 wt. % linear low density polyethylene, and a blowing agent in an amount of 0.01 to 3 wt. % based on the total foamable polymer composition, wherein the blowing agent consists of citric acid and/or derivatives of citric acid or mixtures thereof. Further the invention relates to a foamable polymer composition comprising a polyolefin polymer, and a blowing agent in an amount of 0.01 to 3 wt. % based on the total foamable polymer composition, wherein the blowing agent consists of expandable polymeric microspheres, and the composition does not comprise fluororesin. Further the invention relates to a foamed polymer composition obtained by foaming this foamable polymer composition.

Abstract: The invention relates to a foamable polymer composition comprising a blowing agent and a foamed polymer composition obtained by foaming this foamable polymer composition. The invention further relates to a cable comprising at least one layer which comprises the foamable polymer composition or a foamed polymer composition.

Abstract: The present invention concerns a foamable polymer composition and a foamed polymer composition obtained by foaming this foamable polymer composition. The invention is also concerned with a cable comprising at least one layer which comprises the foamable polymer composition or the foamed polymer composition. The invention further provides a process for producing a foamed polymer composition.

Abstract: The present invention relates to a cable jacket comprising a random heterophasic propylene copolymer, wherein said copolymer comprises a matrix (M) being a random propylene copolymer (R-PP) and dispersed therein an elastomeric propylene copolymer (E), wherein the random propylene copolymer (R-PP) has a melt flow rate MFR2 (230° C./2.16 kg) of 0.1 to 10.0 g/10 min and wherein the elastomeric propylene copolymer (E) has a comonomer content in the range of 40.0 to 55.0 mol %, and wherein said copolymer has MFR2 (230° C.) in the range of from 0.5 to 15 g/10 min, flexural modulus below 400 MPa, and relaxation spectrum index (RSI) at 200° C. below 20.0. The present invention further relates to a telecommunication cable comprising said jacket.

Abstract: The present invention relates to a cable jacket comprising a random heterophasic propylene copolymer, the random heterophasic polypropylene copolymer comprising a matrix (M) being a random propylene copolymer (R-PP) and dispersed therein an elastomeric propylene copolymer (E), wherein the random propylene copolymer (R-PP) comprises a first propylene copolymer fraction (R-PP1) having a comonomer content in the range of 0.8 to 6.0 mol % and a second propylene copolymer fraction (R-PP2) having a comonomer content in the range of 7.2 to 20.0 mol %, based on the overall amount of fractions (R-PP1) and (R-PP2), and wherein the random heterophasic propylene copolymer has MFR2 (230° C.) measured according to ISO 1133 in the range of 0.5 to 15 g/10 min, and Charpy impact strength measured according to ISO 179-1/1eA at ?20° C. in the range of 5 to 20 kJ/m2. The present invention further relates to a power cable comprising the cable jacket.

Abstract: The present invention relates to a cable jacket composition comprising an expandable and crosslinkable jacket blend of: a polymer composition comprising a polyolefin material, which polyolefin material bears silane moieties, and a foaming system, wherein the provided jacket blend will comprise at least 0.1% by weight of a foaming agent, with respect to the total weight of the polyolefin material; cable jacket; cable, e.g. a power cable or a communication cable; and uses thereof.

Abstract: The present invention relates to a process for manufacturing a power cable, which power cable comprises at least one core comprising a conductor and an expanded and crosslinked insulation layer surrounding said conductor, wherein said process comprises the steps a) to d): a) providing a blend of: a polymer composition comprising a polyolefin material, which polyolefin material bears silane moieties; a catalyst and a foaming system, wherein the provided blend will comprise at least 0.1% by weight of a foaming agent, with respect to the total weight of the polyolefin material; b) extruding a blend, as described in step a), on the conductor to form an insulation layer; c) foaming the insulation layer; and d) crosslinking the insulation layer; a power cable which is obtainable by the process, and use of the power cable.

Abstract: The present invention relates to a process for manufacturing a power cable, which power cable comprises at least one core comprising a conductor and an expanded and crosslinked insulation layer surrounding said conductor, wherein said process comprises the steps a) to d): a) providing a blend of: a polymer composition comprising a polyolefin material, which polyolefin material bears silane moieties; a catalyst and a foaming system, wherein the provided blend will comprise at least 0.1% by weight of a foaming agent, with respect to the total weight of the polyolefin material; b) extruding a blend, as described in step a), on the conductor to form an insulation layer; c) foaming the insulation layer; and d) crosslinking the insulation layer; a power cable which is obtainable by the process, and use of the power cable.

Abstract: The present invention relates to a compounded polyethylene composition having a density of 930 to 965 kg/m3 and comprising at least 0.01 percent by weight (wt-%) of sodium bicarbonate after compounding of the compounded polyethylene composition, wherein the ratio between sodium bicarbonate, in the polyethylene composition, before and after compounding is X, wherein X1?X<X2, and X1 is 1.00 and X2 is 2.00, an article, for example, a coating, a wire or a cable, comprising the compounded polyethylene composition, a process for producing the article, and use of the compounded polyethylene composition.

Abstract: The invention is related to a polyethylene composition characterized in that it comprises a base resin and an inorganic mineral filler which is present in the composition in an amount of 1 to 50 wt % in respect to the weight of composition, wherein said base resin comprises: a) a first crosslinked polyethylene (PEX) having a gel content (measured according to ASTM D 2765:2006) in the range of 5% to 80% in respect to the weight of crosslinked polyethylene (PEX), said crosslinked polyethylene (PEX) being obtained from recycled wastes and b) a second polyethylene (PE) selected from virgin polyethylene and recycled polyethylene, or mixtures thereof. The invention is further related to a process for production of said polyethylene composition, and use of the polyethylene composition.

Abstract: The invention is related to a polyethylene composition characterized in that it comprises a base resin and an inorganic mineral filler which is present in the composition in an amount of 1 to 50 wt % in respect to the weight of composition, wherein said base resin comprises: a) a first crosslinked polyethylene (PEX) having a gel content (measured according to ASTM D 2765:2006) in the range of 5% to 80% in respect to the weight of crosslinked polyethylene (PEX), said crosslinked polyethylene (PEX) being obtained from recycled wastes and b) a second polyethylene (PE) selected from virgin polyethylene and recycled polyethylene, or mixtures thereof. The invention is further related to a process for production of said polyethylene composition, and use of the polyethylene composition.

Abstract: The invention relates to a cable comprising at least one layer which comprises a foamable polyolefin polymer composition comprising a polyolefin polymer composition and blowing agent wherein the blowing agent comprises more than 90 wt % of citric acid or a derivate of citric acid.