Method for slush moulding articles of two or more colors from thermoplastic, thermosetting or elastomeric resins in powder form

A method for method for making a moulded two-colored article comprising the steps of:

• a) providing a mould having an inner surface;
• b) moulding a gasket having a profile which is approximately the same as a profile of a corresponding region of the mould inner surface;
• c) embedding a rigid material in the gasket;
• d) fixing the gasket to a separation wall having a chamber therein;
• e) inserting the gasket and the separation wall into the mould, and aligning the gasket along the corresponding region of the mould inner surface to create a seal between the mould inner surface and the separation wall and to define first and second half-spaces within the mould that are sealed from each other;
• f) perfecting the seal between the separation wall and the corresponding region of the mould inner surface by forcing compressed air through the chamber of the separation wall and against the gasket to compress the gasket against the corresponding region of the mould inner surface;
• g) slush moulding of layer of a first colored material within the firs half-space, the layer of the first colored material only adhering to walls defining the first half-space;
• h) consolidating the layer of the first colored material;
• i) removing the gasket and the separation wall from the mould;
• and
• j) slush moulding a continuous layer of a second colored material within the mould, thereby producing the moulded two-colored article which includes the layer of the first colored material, the continuous layer of the second colored material, and a separation line between the layer of the first colored material and the continuous layer of the second colored material.