An injection process for making a moulding completely recyclable, multi-layered article

摘要

The present invention is directed to an injection moulding process for making a completely recyclable, multilayered article consisting of:
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
g) injection moulding of the rigid layer into a mould composed of two sides,
h) 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
i) injecting the foamed skin layer into the gap formed in step b).