Abstract: The disclosure provides for a composite material suitable for use as EMI shielding material, remarkable in that it comprises a component A being a polymer resin being at least one amorphous polymer resin and/or at least one semi-crystalline polymer resin selected from polyethylene resin and/or polypropylene resin; from 15.0 to 60.0 wt. % of component B being at least one metal-coated particle based on the total weight of the composite material; and from 0.5 to 5.0 wt. % of component C being one or more dispersants based on the total weight of the composite material; wherein one or more dispersants are selected from fatty acids, fatty acid derivatives, ethylene bis stearamide, functionalized waxes, maleic anhydride-grafted polymers and any mixture thereof; wherein the blend of components A, B and C shows a density ranging from 0.8 to 2.0 g/cc.

Abstract: The disclosure relates to the use of a composite material as electro-thermal material in a process for the production of an electrical heating panel, wherein the electrical heating panel comprises at least one device selected from a plate, a sheet or a film, wherein said device has one or more layers wherein at least one layer is a heating layer made of a composite material comprising a first polymer which is one or more amorphous polymers or one or more semi-crystalline polymers selected from polyethylene and/or polypropylene; and from 2.0 to 20.0 wt. % of carbon particles and wherein the heating layer or at least one heating layer has a thickness ranging from 100 ?m to 4.0 mm. The disclosure also relates to the use of such electrical heating panel in a motor vehicle.

Abstract: The disclosure provides for a composite material suitable for use as EMI shielding material, remarkable in that it comprises a component A being a polymer resin being at least one amorphous polymer resin and/or at least one semi-crystalline polymer resin selected from polyethylene resin and/or polypropylene resin; from 15.0 to 60.0 wt. % of component B being at least one metal-coated particle based on the total weight of the composite material; and from 0.5 to 5.0 wt. % of component C being one or more dispersants based on the total weight of the composite material; wherein one or more dispersants are selected from fatty acids, fatty acid derivatives, ethylene bis stearamide, functionalized waxes, maleic anhydride-grafted polymers and any mixture thereof; wherein the blend of components A, B and C shows a density ranging from 0.8 to 2.0 g/cc.

Abstract: The disclosure relates to the use of a composite material as electro-thermal material in a process for the production of an electrical heating panel, wherein the electrical heating panel comprises at least one device selected from a plate, a sheet or a film, wherein said device has one or more layers wherein at least one layer is a heating layer made of a composite material comprising a first polymer which is one or more amorphous polymers or one or more semi-crystalline polymers selected from polyethylene and/or polypropylene; and from 2.0 to 20.0 wt. % of carbon particles and wherein the heating layer or at least one heating layer has a thickness ranging from 100 ?m to 4.0 mm. The disclosure also relates to the use of such electrical heating panel in a motor vehicle.

Abstract: The invention relates to a conductive article made from a composite material comprising: from 50 to 99 wt % of a first polyethylene resin as based on the total weight of said composite material, wherein the first polyethylene resin has a melt index MI2 of at most 0.45 g/10 min as determined according to ISO 1133 (190° C.—2.16 kg), and a density ranging from 0.920 g/cm3 to 0.980 g/cm3 as determined according to ISO 1183 at a temperature of 23° C.; and from 0.2 to 10 wt % of carbon particles as based on the total weight of said composite material as determined according to ISO 11358 selected from nanographene, carbon nanotubes or any combination thereof; wherein the composite material further comprises from 0.10 to 0.48 wt % of polyethylene glycol as based on the total weight of the composite material, and in that said polyethylene glycol is selected to have a weight average molecular weight Mw of at most 20,000 g/mol.

Abstract: The invention relates to a conductive article made from a composite material comprising: from 50 to 99 wt % of a first polyethylene resin as based on the total weight of said composite material, wherein the first polyethylene resin has a melt index MI2 of at most 0.45 g/10 min as determined according to ISO 1133 (190° C.—2.16 kg), and a density ranging from 0.920 g/cm3 to 0.980 g/cm3 as determined according to ISO 1183 at a temperature of 23° C.; and from 0.2 to 10 wt % of carbon particles as based on the total weight of said composite material as determined according to ISO 11358 selected from nanographene, carbon nanotubes or any combination thereof; wherein the composite material further comprises from 0.10 to 0.48 wt % of polyethylene glycol as based on the total weight of the composite material, and in that said polyethylene glycol is selected to have a weight average molecular weight Mw of at most 20,000 g/mol.

Abstract: The invention relates to blends of at least one single-site catalyst polyethylene and at least one single-site catalyst isotactic polypropylene wherein the blend comprises an isotactic polypropylene content ranging from 25 to 55 weight percent relative to the total weight of both the polyethylene and the polypropylene contained in the blend, and wherein the at least one single-site catalyst polyethylene and the at least one single-site catalyst isotactic polypropylene are selected to fulfil the relationship: MFIPP=?MI2PE??(I) with ? ranging from 2.0 to 9.0, MI2PE being the melt flow index of the polyethylene as measured according to ISO 1133 at 190° C. under a load of 2.16 kg and MFIPP being the melt flow index of the isotactic polypropylene as measured according to ISO 1133 at 230° C. under a load of 2.16 kg. The blends show improved impact properties at both 23° C. and below 0° C. The invention is also directed to a process for producing said blends, as well as to articles produced from these blends.

Abstract: A propylene-comonomer block copolymer may have a molecular weight distribution Mw/Mn of at least 1.7, a percentage of enthalpy measured between Ti and [Tm?18° C.] of at least 20% of the total enthalpy, and a ratio E1/Co of at least 0.80. The propylene-comonomer block copolymer may be produced by polymerizing propylene in the presence of at least one comonomer and a bridged metallocene catalyst. The bridged metallocene catalyst may include bridged fluorenyl, bridged indenyl metallocene, or any combination thereof. The propylene-comonomer block copolymer may be used as a heat seal layer for biaxially oriented multi-layer films.

Abstract: The present invention relates to a masterbatch for use in a process of preparing a composite material comprising a blend of a first semi-crystalline polymer with at least 5 wt % carbon nanotubes. Good dispersion of the carbon nanotube is obtained within the masterbatch and evidenced by the blending of the masterbatch with a second semi-crystalline polymer miscible with the first one in respective proportions to obtain a composite material containing about 1 wt % of carbon nanotubes wherein said composite material yields an agglomerate area fraction U % lower than 2 and a surface resistivity lower than 105 ohm/sq.

Abstract: The present invention relates to a masterbatch for use in a process of preparing a composite material comprising a blend of a first semi-crystalline polymer with at least 5 wt % carbon nanotubes. Good dispersion of the carbon nanotube is obtained within the masterbatch and evidenced by the blending of the masterbatch with a second semi-crystalline polymer miscible with the first one in respective proportions to obtain a composite material containing about 1 wt % of carbon nanotubes wherein said composite material yields an agglomerate area fraction U % lower than 2 and a surface resistivity lower than 105 ohm/sq.

Abstract: The present invention relates to a masterbatch to for use in a process of preparing a composite material, the masterbatch comprising a blend of a first amorphous polymer with carbon nanotubes, and at least 5% by weight of carbon nanotubes based on the total weight of the masterbatch, preferably from 5% to 15%, wherein the masterbatch exhibit a high load melt flow index HLMI1 of less than 40 g/10 min determined at 200° C. under a load of 21.6 kg according to ISO1133 and the first amorphous polymer has a melt flow index MFI1 of at least 10 g/10 min determined at 200° C. under a load of 5 kg according to ISO1133H. The invention also relates to the process for preparing such masterbatch and to process of preparing a composite material using said masterbatch.

Abstract: The present invention relates to a multi-layered structure, comprising at least two layers: a polyethylene layer, comprising polyethylene; and, a polylactic acid layer, comprising polylactic acid; wherein the polyethylene layer is corona-, flame- or plasma-treated.

Abstract: The invention relates to a conductive article such as a pipe or a container, wherein the article is made from a composite material comprising from 50 to 99 wt % of a first polyethylene resin having an HLMI ranging from 1 to 50 g/10 min, a melt index MI2 of at most 0.45 g/10 min, and a density ranging from 0.920 g/cm3 to 0.980 g/cm3; from 0.2 to 10 wt % of carbon particles selected from nanographene, carbon nanotubes (CNT) or any combination thereof; and from 0.01 to 5.0 wt % of one or more processing aids. The conductive article has a surface resistivity of at most 1.106 ohm/sq as determined according to silver ink method. The invention also relates to a process to produce such conductive article.

Abstract: The present invention relates to an article suitable to act as a thermal switch device, the article having a surface resistance of more than 105 ohms and formed from a polymer composition comprising from 50 to 99.9 wt % relative to the total weight of the polymer composition, of a polymer being selected from an amorphous polymer having a glass transition temperature Tg, a semi-crystalline polymer having a melting temperature Tm or a mixture thereof, and from 0.1 to 50 wt % relative to the total weight of the polymer composition, of a conductive material, wherein the surface resistance of the article is divided by at least 10, preferably by at least 100, when said article is submitted for a determined period of time of less than 5 minutes to a temperature of switch i) ranging from Tg+10° C. to Tg+250° C. if the polymer composition comprises an amorphous polymer, or ii) ranging from Tm?80° C. to Tm+250° C. if the polymer composition comprises a semi-crystalline polymer.

Abstract: A masterbatch for use in a process of preparing a composite material may contain a blend of a first amorphous polymer with carbon nanotubes. At least 5% by weight of carbon nanotubes may be present in the masterbatch, based on a total weight of the masterbatch. The masterbatch may exhibit a high load melt flow index HLMI1 of less than 40 g/10 min determined at 200° C. under a load of 21.6 kg according to ISO1133. The first amorphous polymer may have a melt flow index MFI1 of at least 10 g/10 min determined at 200° C. under a load of 5 kg according to ISO1133H.

Abstract: A process for preparing a long chain branched polypropylene in presence of two metallocene-based active catalyst systems is provided. The polypropylene obtained therefrom has new molecular architecture and improved elasticity properties. The polypropylene is further characterized by new signals in its 13C NMR spectrum.

Abstract: The present invention relates to an article suitable to act as a thermal switch device, the article having a surface resistance of more than 105 ohms and formed from a polymer composition comprising from 50 to 99.9 wt % relative to the total weight of the polymer composition, of a polymer being selected from an amorphous polymer having a glass transition temperature Tg, a semi-crystalline polymer having a melting temperature Tm or a mixture thereof, and from 0.1 to 50 wt % relative to the total weight of the polymer composition, of a conductive material, wherein the surface resistance of the article is divided by at least 10, preferably by at least 100, when said article is submitted for a determined period of time of less than 5 minutes to a temperature of switch i) ranging from Tg+10° C. to Tg+250° C. if the polymer composition comprises an amorphous polymer, or ii) ranging from Tm?80° C. to Tm+250° C. if the polymer composition comprises a semi-crystalline polymer.

Abstract: A process for preparing a long chain branched polypropylene in presence of two metallocene-based active catalyst systems is provided. The polypropylene obtained therefrom has new molecular architecture and improved elasticity properties. The polypropylene is further characterized by new signals in its 13C NMR spectrum.

Abstract: The invention relates to blends of at least one single-site catalyst polyethylene and at least one single-site catalyst syndiotactic polypropylene with a specific syndiotactic polypropylene content ?PP in weight percent relative to the total weight of both the polyethylene and the syndiotactic polypropylene contained in the blend corresponding to: ? PP = ? ? 100 ? ? MI ? ? 2 PE MFI PP + MI ? ? 2 PE ( I ) with ? being at most 1.40, MI2PE being the melt flow index of the polyethylene as measured according to ISO 1133 at 190° C. under a load of 2.16 kg and MFIPP being the melt flow index of the syndiotactic polypropylene as measured according to ISO 1133 at 230° C. under a load of 2.16 kg. The blends show improved impact properties at temperatures below 0° C. The invention is also directed to a process for producing said blends, as well as to articles produced from these blends.

Abstract: The present invention relates to a process for the preparation of polyolefin fibers having mean fiber diameters of less than 5000 nm, comprising the steps of: a) preparing a polyolefin solution in a solvent, b) placing said polyolefin solution in a fiber producing device comprising a body configured to receive said polyolefin solution, said body comprising one or more openings, and c) rotating the fiber producing device, wherein rotation of the fiber producing device causes the polyolefin solution to be passed through said one or more openings to produce polyolefin fibers having mean fiber diameters of less than 5000 nm, wherein said polyolefin is selected from the group comprising polyethylene polymers and copolymers having a weight average molecular weight Mw of at least 40 000 daltons, and polypropylene polymers and copolymers, having a weight average molecular weight Mw of at least 120 000 daltons; wherein said fiber producing device is rotated at a speed of at least 10 000 revolutions per minutes (RPM).