Patent ID: 8679375

Claim:
An electrically conductive sulfur-vulcanised rubber blend, the electrically conductive sulfur-vulcanised rubber blend comprising: 50.0 to 99.0-p.p.h.r. of solid poly(butadiene-co-acrylonitrile) with 17 to 54 weight % of acrylonitrile contents; 1.0 to-50.0 p.p.h.r. of solid sulfonic acid doped polyaniline electrically conductive filler with a protonation level of 40-100%; a dispersing agent of solid sulfonic acid doped polyaniline electrically conductive filler, which has been prepared and premixed with 60 to 80 weight % of zinc oxide and 20 to 40 weight % of dopant, with 2 to 4 times total weight % of the total content of the solid sulfonic acid doped polyaniline electrically conductive filler; about 0.5 p.p.h.r. of an antioxidant with a purity level of 95-100 wt %; about 0.5 p.p.h.r. of sulfur with a purity level of 95-100 wt %; about 3.5 p.p.h.r. of sulfur vulcanisation system's accelerator with a purity level of 95-100 wt %; about 7.0 p.p.h.r. of sulfur vulcanisation system's activator with a purity level of 95-100 wt %; and from about 1.0 p.p.h.r. to about 20.0 p.p.h.r. of a whitening agent with a purity level of 90-100 wt %.