CABLE INSULATION COMPOSITION Russian patent published in 2020 - IPC H01B3/44 C08L23/20 C08F210/02 

FIELD: chemistry.

SUBSTANCE: invention relates to a cable insulation composition comprising the multimodal olefin copolymer, said olefin copolymer having density of 0.935 to 0.960 g/cm³ and MFR₂ of 1.5 to 10.0 g/10 min and contains low molecular weight polymer mixture is bimodal homo- or copolymer and high-molecular copolymer, where composition has ESCR of at least 2000 hours and where numerical values of cable wear index and composition MFR₂ (g/10 min) correspond to correlation: wear index is less than 15.500 + 0.900 × MFR₂ compositions. Invention also relates to a method of producing said composition and use thereof as an outer layer of insulation for a cable, preferably a communication cable, most preferably a fibre-optic cable.

EFFECT: invention enables to produce a composition for insulation having higher wear resistance.

15 cl, 2 tbl