FIREPROOF POLYMER COMPOSITIONS AND THEIR APPLICATION IN THE COVERING OF ELECTRICAL CABLES.

摘要

FIREPROOF POLYMER COMPOSITIONS INCLUDING A HYDRATED MINERAL LOAD, AT LEAST ONE ETHYLENE COPOLYMER / VINYL ACETATE AND AT LEAST ONE (ALPHA) -OLPHINE, CHARACTERIZED IN WHICH THEY ARE CONSTITUTED WEIGHT OF MINERAL LOAD HYDRATED BY 100 PARTS BY WEIGHT OF A POLYMER PHASE CONSTITUTED: A) FROM 15 TO 55 PARTS BY WEIGHT OF AT LEAST ONE ETHYLENE COPOLYMER / VINYL ACETATE HAVING A PERCENTAGE OF 20 PERCENT IN VINYL ACETATE INCLUDING 20 AND 50% IN WEIGHT. B) 25 TO 62 PARTS BY WEIGHT OF AT LEAST ONE ETHYLENE TERPOLYMER / (MET) ALKYL ACRYLATE / INSURATED DICARBOXYL ACID ANHYDRIDE (B). C) FROM 8 TO 45 PARTIES BY WEIGHT OF AT LEAST ONE COPOLYMER OF ETHYLENE AND OF AT LEAST ONE (ALPHA) -OLEFINE (C) HAVING A DENSITY COMPRISED BETWEEN 0.880 AND 0.915 AND A CRYSTALLINIZED RATE OF AT LEAST 5%, AND D ) 0 TO 5 PARTS BY WEIGHT OF AT LEAST ONE LOW DENSITY POLYETHYLENE (D). INDUSTRIAL ITEMS UNDERSTANDING TOTAL COMPOSITION OF FIRE POLYMER.