ELECTRICALLY INSULATING COMPOSITION Russian patent published in 2013 - IPC H01B3/44 C08L27/06 

FIELD: chemistry.

SUBSTANCE: composition contains the following in pts.wt: suspended polyvinyl chloride 100, ester plasticiser 40-60, tribasic lead sulphate 3-7, calcium stearate 1-3, calcium carbonate 5-7, trihydrate of aluminium oxide and/or magnesium hydroxide 20-80, antimony trioxide 2-9, zinc oxide 1-5, ionol 0.1-0.5, zinc borate 0.5-6, diphenylol propane 0.1-0.5 percalite F 100 - 0-5 metal-containing lubricant 0.5-10, wherein the metal-containing lubricant is obtained by reacting oleic or stearic acid with glycerol in molar ratio 1:1 in the presence of 0.5-2.0 wt % of the total reaction mass of zinc oxide or magnesium oxide or two-component mixture thereof, with weight ratio thereof of 0.25-1.0:0.25-1.0 at 130-160°C and holding for 4-5 hours. High melt fluidity of the disclosed composition makes easier its processing in high-speed extruders.

EFFECT: low coefficient of smoke formation, high degree of incombustibility, processability of the composition and improved outer appearance of a bundle of the cable plastic compound.

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