ELECTRICALLY INSULATING COMPOSITION Russian patent published in 2013 - IPC C08L27/00 H01B3/44 

FIELD: chemistry.

SUBSTANCE: invention relates to cable engineering and specifically to polymer compositions based on plasticised polyvinyl chloride (PVC) with low inflammability and release of smoke in combustion and smouldering conditions and release of hydrogen chloride during combustion, meant for insulating inner and outer sheaths of wires and cables used in high fire hazard conditions. The electrically insulating composition contains suspension polyvinyl chloride, an ester plasticiser, a lead stabiliser, calcium carbonate, a trihydrate of aluminium oxide or magnesium hydroxide, antimony trioxide, calcium stearate, zinc oxide, zinc borate, a bromine-containing fire retardant, boric acid and diphenylol propane.

EFFECT: invention improves fire safety of wires and cables, reduces smoke-formation during smouldering or combustion and provides low inflammability.

1 tbl, 15 ex