Composition for low smoke, flame retardant, halogen-free, thermoplastic insulation showing good electrical, properties in water

A composition for manufacturing halogen-free, flame retardant, low smoke emission, thermoplastic insulations showing good electrical properties in water, comprising:

• a) a mixture of at least two polyolefin-based polymer resins or optionally, combinations thereof, comprising from about 5 to about 95 phr of a first soft and flexible resin and from about 5 to about 95 phr of a second tensile strength and heat-resistance provider resin;
• b) from about 0.2 to about 50 phr of at least one compatibilizing and/or coupling agent;
• c) from about 40 to about 270 phr of at least one flame retardant agent;
• d) from about 0.1 to about 15 phr of at least one antioxidant agent;
• and
• e) from about 0.2 to about 5 phr of at least one lubricant agent;
• wherein said polyolefin based polymer resins comprises from about 10 to about 90 phr of the first soft and flexible resin;
• and from about 10 to about 90 phr of the second tensile strength and heat-resistance provider resin;
• the first soft and flexible resin is selected from polyethylene vinyl acetate-type resins (EVA);
• polyethylene butyl acrylate-type resins (EBA);
• polyethylene ethyl acrylate-type resins (EEA);
• polyethylene methyl acrylate-type resins (EMA);
• low density lineal polyethylene-type resins (LLDPE);
• ethylene propylene copolymer-type resins (EP);
• or copolymers type resin that can include a olefins having the general formula CH2═CH—R, wherein R is an alkyl, alkenyl or alkynyl which can contain from 1 to 10 carbons, that can be copolymerized or mixed among them;
• and combinations thereof.

An electrical conductor cable comprising:

• a) a conductor core comprising an electrical conductor wire;
• b) a first insulating layer wrapped around the whole length of the conductor core;
• said insulating layer comprising:
• i) a mixture of at least two polyolefin-based polymer resins or optionally combinations thereof, comprising from about 5 to about 95 phr of a first soft and flexible resin and from about 5 to about 95 phr of a second tensile strength and heat-resistance provider resin;
• ii) from about 0.2 to about 50 phr of at least one compatibilizing and/or coupling agent;
• iii) from about 40 to about 270 phr of at least one flame retardant agent;
• iv) from about 0.1 to about 15 phr of at least one antioxidant agent;
• and,
• v) from about 0.2 to about 5 phr of at least one lubricant agent;
• c) optionally, a second insulating layer wrapped around the whole length of the first insulating layer;
• d) optionally, a third insulating layer wrapped around the whole length of the third insulating layer;
• said second and third insulating layer comprising similar components as the first insulating layer;
• wherein said conductor comprises halogen-free, flame retardant, low smoke emission, thermoplastic insulations showing good electrical properties in water.