Electrically conductive polyolefin blends

An electrically conductive polymer compound, comprising:

• (a) a matrix comprising a first polyolefin copolymer and a second polyolefin copolymer wherein the two polyolefin copolymers have different melt mass flow rates, and
• (b) electrically conductive particles dispersed in the matrix,
• wherein both copolymers are ethylene-propylene copolymer,
• wherein the melt mass flow rate of the first copolymer is about 30 to 90 lower in g/10 min, than the second copolymer when measured at 230° C. and 2.16 kg using ASTM D1238, and
• wherein the amount of the first copolymer ranges from about 30 to about 75 weight percent of the compound, wherein the amount of the second copolymer ranges from about 5 to about 45 weight percent of the compound, and wherein the electrically conductive particles ranges from about 5 to about 45 weight percent of the compound.