Abstract: A polymer composition comprising an antimicrobial material for inhibiting the growth of microorganisms in close proximity to said polymer composition. The polymer composition comprises: (a) a polymeric substrate comprising a first polymer and a second polymer, and (b) an antimicrobial material comprising coniferous resin acid(s) dispersed in the polymeric substrate. The water contact angle of the first polymer is not more than 80°.

Abstract: A polymer film, comprising at least one active layer made of a composition containing a polymeric substrate comprising at least one of the polyolefin polymer and polyamide 6, and a coniferous resin acid(s) dispersed in the polymeric substrate.

Abstract: The invention relates to an electrically conductive elastomer mixture and to a method. The mixture comprises a thermoplastic styrene elastomer and, as an electrically conductive filler, metal-containing particles. The mixture further comprises a polymer which is an acid-grafted, acid-anhydride-grafted or acid-copolymer and which forms an IPN (Interpenetrating Polymer Network) network structure with the styrene elastomer.

Abstract: The invention relates to an electrically conductive elastomer mixture and to a method. The mixture comprises a thermoplastic styrene elastomer and, as an electrically conductive filler, metal-containing particles. The mixture further comprises a polymer which is an acid-grafted, acid-anhydride-grafted or acid-copolymer and which forms an IPN (Interpenetrating Polymer Network) net-work structure with the styrene elastomer.

Abstract: A method of preparing an electrically conductive polymer blend, and an electrically conductive polymer blend includes steps of selecting at least two polymeric materials that are substantially immiscible together, mixing the polymeric materials into a blend so that at least one of the polymeric materials forms a continuous three-dimensional phase through the entire blend, and mixing an electrically conductive filler into the blend. The difference in surface tension between the polymeric material forming the continuous three-dimensional phase and the other polymeric materials forming the blend is at least 2 mN/m.

Abstract: An electrically conductive thermoplastic elastomer composite comprising an elastomer matrix and particles coated with metal as an electrically conductive filler. The electrically conductive particles are at least partly coated with a self-assembled monomolecular layer. Alternatively, the coating may comprise molecular wires that settle between the self-assembled molecules. The resistivity of the thermoplastic elastomer of the invention is low and does not substantially increase by the action of compression.

Abstract: An electrically conductive thermoplastic elastomer and a sealing and/or EMI shielding product comprising a substantially electrically non-conductive matrix material and an electrically conductive filler part which contains metal. The specific resistance of the elastomer is at most 1 &OHgr;.cm.