METHOD OF PRODUCING RADIATION CROSS-LINKED FLUOROPOLYMER COMPOSITION Russian patent published in 2013 - IPC H01B3/46 

FIELD: chemistry.

SUBSTANCE: invention relates to insulation materials used in the cable industry, which are radiation cross-linked fluoropolymer compositions based on an ethylene-tetrafluoroethylene copolymer. The method involves adding a cross-linking agent - trialyl isocyanurate - to a polymer base which contains a granular ethylene-tetrafluoroethylene copolymer (brand - Tefzel). Said agent is added in form of its 20% concentrate which is obtained by mixing molten trialyl isocyanurate with granules of the ethylene-tetrafluoroethylene copolymer (Tefzel), wherein the concentrate is added to the polymer base in ratio of 1 part concentrate to 4-7 parts granules of the polymer base.

EFFECT: high uniformity of distribution of the cross-linking agent in the composition without formation of gel-like inclusions.

2 cl, 2 tbl