Abstract: The invention relates to a semiconductive polyolefin composition comprising, (A) 80 to 99.5 wt. % of an olefin polymer base resin based on the total weight of the semiconductive polyolefin composition; (B) 0.1 to 10.0 wt. % of first carbonaceous structures based on the total weight of the semiconductive polyolefin composition; (C) 0.2 to 15.0 wt. % of carbon black and/or second carbonaceous structures based on the total weight of the semiconductive polyolefin composition; and (D) optionally additives; wherein the combined amount of components (B) and (C) is at least 0.3 wt. % and not more than 15.0 wt. % based on the total weight of the semiconductive polyolefin composition; and wherein the semiconductive polyolefin composition has an electrical percolation threshold of not more than 5 wt. % of the combined amount of components (B) and (C) dispersed in the olefin polymer base resin (A), the electrical percolation threshold being defined as the critical concentration in wt.

Abstract: A polymer composition comprising (i) at least 70 wt% of low-density polyethylene (LDPE) homopolymer or copolymer having a density of 905 to 935 kg/m3 (ISO 1183-2) and an MFR2 of 0.1 to 10 g/10 min (ISO1133 at 190° C., 2.16 kg); (ii) 0.5 to 20 wt % of a high density polyethylene (HDPE) having a density of 940 kg/m3 or more and an MFR2 of 0.1 to 50 g/10 min; and (iii) 0.05 to 10 wt% of an aliphatic, preferably alkyl, functional inorganic nanoparticle filler.

Abstract: An article having an antibacterial surface having an antibacterial surface having the nano scale flakes or platelets arranged essentially aligned to each other and extending out from said surface with a length in the range of 0.5-30 microns. The antibacterial surface is produced by processing a mixture of a polymer matrix material and a filler material comprising the nanoscale flakes or platelets by pressing the mixture through a die while heated to a temperature above a melting temperature of the polymer matrix material. Hereby, the nano scale flakes or platelets become aligned, with their longitudinal directions being oriented in substantially the same direction. A surface of the processed mixture which is oriented essentially perpendicularly to the longitudinal directions of the nano scale flakes or platelets is then etched or ablated to partly expose the nano scale flakes or platelets, thereby making the surface antibacterial.