Thermoplastic composition comprising polyethylene, manufacture and use thereof

A thermoplastic composition, comprising:

• from 10 to 50% by weight of a combination of at least one first ethylene polymer, at least one second ethylene polymer, and at least one third ethylene polymer,
• wherein the first ethylene polymer has the following properties:
• a density in the range of 0.87 g/cm3 to 0.90 g/cm3;
• a melt flow index in the range of 0.3 g/10 min to 5 g/10 min;
• and
• a flexural modulus in the range of 5 MPa to 60 MPa;
• wherein the second ethylene polymer has the following properties:
• a density in the range of 0.90 g/cm3 to 0.92 g/cm3;
• a melt flow index in the range of 0.3 g/10 min to 10 g/10 min;
• and
• a flexural modulus which is higher than that of the first ethylene polymer;
• and
• wherein the third ethylene polymer has the following properties:
• a density in the range of 0.92 g/cm3 to 0.97 g/cm3;
• and
• a melt flow index in the range of 15 g/10 min to 100 g/10 min;
• from 35 to about 90% by weight of inorganic particles as filler;
• and
• from 0.05 to 20% by weight of a liquid (at 23° C.) which acts as a plasticizer for at least one of the at least one first ethylene polymer, the at least one second ethylene polymer, and the at least one third ethylene polymer;
• and
• wherein each density is determined according to ASTM D792, each melt flow index is determined according to ASTM D1238, at 190° C. and 2.16 kg, and each flexural modulus is determined according to ASTM D790.