Abstract: An injection moulding process for making a completely recyclable, multilayered article which contains: i) a rigid layer formed of a thermoplastic polymer and ii) a foamed skin layer formed of a thermoplastic polymer compatible with the material of the rigid layer, by injection moulding of the rigid layer into a mould composed of two sides, lifting one side of the mould, or change one side of the mould to obtain a small gap of between 3 to 4 mm between the rigid layer and the side of the mould lifted or changed and injecting the foamed skin layer into the gap formed in step b).

Abstract: An injection moulding process for making a completely recyclable, multilayered article which contains: i) a rigid layer formed of a thermoplastic polymer and ii) a foamed skin layer formed of a thermoplastic polymer compatible with the material of the rigid layer, by injection moulding of the rigid layer into a mould composed of two sides, lifting one side of the mould, or change one side of the mould to obtain a small gap of between 3 to 4 mm between the rigid layer and the side of the mould lifted or changed and injecting the foamed skin layer into the gap formed in step b).

Abstract: Process for the preparation of modified polypropylene which can be used as compatibilizing agent, consisting in reacting the polymer with maleic anhydride in the presence of dilaurylperoxide and in the absence of a solvent.