Abstract: The present disclosure provides polymeric compositions with balanced electrical and mechanical properties exhibiting reduced hysteresis comprising an electrically insulating polymeric material, a first carbon black material having a statistical thickness surface area (STSA) of below 70 m2/g and an oil absorption number (OAN) in the range from 70 to 150 mL/100 g, and a second carbon black material having a statistical thickness surface area (STSA) of at least 100 m2/g and an oil absorption number (OAN) of at least 150 mL/100 g, wherein both carbon black materials are included in an amount below its respective percolation threshold concentration, with the total amount of the first carbon black material and the second carbon black material being sufficient to render the polymeric composition antistatic or electrically conductive. The polymeric compositions exhibit balanced electrical and mechanical properties and a reduced hysteresis.

Abstract: The present invention relates to a pelleted acetylene black having a mass strength measured according to ASTM D 1937-10 of 200 N at most and an average pellet size measured according to ASTM D 1511-10 of at least 1.0 mm, to the use of any of said pelleted acetylene blacks to produce a compound comprising a resin or polymer or rubber matrix and the acetylene black dispersed in said matrix and to a method for producing such a compound.

Abstract: The present invention relates to a pelleted acetylene black having a mass strength measured according to ASTM D 1937-10 of 200 N at most and an average pellet size measured according to ASTM D 1511-10 of at least 1.0 mm, to the use of any of said pelleted acetylene blacks to produce a compound comprising a resin or polymer or rubber matrix and the acetylene black dispersed in said matrix and to a method for producing such a compound.