Abstract: A method for manufacturing a decorative object from at least a first layer of a hot-extruded strand of a polymer-based composition, including a step of passing a polymer-based composition through an extrusion die from an inlet supplying the composition to an extrusion head from which the extruded strand emerges in an ambient environment, the first layer of extruded strand deposited on a reception support, and the method includes the steps of: using a polymer-based composition of recycled polyethylene terephthalate or a mixture of recycled polyethylene terephthalate and non-recycled polyethylene terephthalate, heating the composition so that the temperature of the extruded strand, at the outlet of the extrusion head is between 200° C. and 300° C., cooling the reception support to force the cooling of the first layer of extruded strand by conduction, the temperature of the cooling of the support being lower than the temperature of the ambient environment.

Abstract: A method for producing a decorative object from at least one extruded bead layer, including a step of passing a polymer-based composition into an extrusion die, the extrusion head controlled by a control element to follow a continuous trajectory intended to form the decorative object in one layer, the control element controlling a variation in the speed V of movement of the extrusion head on the basis of a variation in the trajectory of the extrusion head by an angle ? and, at a distance D from a change in angle ?, the continuous trajectory of the extrusion head complies with the following equation, for each of the layers forming the decorative object, where appropriate: D=a+(b×Vc)+(d×?) where a, b, c and d are constants.

Abstract: A method for producing a decorative object from at least one extruded bead layer, including a step of passing a polymer-based composition into an extrusion die, the extrusion head controlled by a control element to follow a continuous trajectory intended to form the decorative object in one layer, the control element controlling a variation in the speed V of movement of the extrusion head on the basis of a variation in the trajectory of the extrusion head by an angle ? and, at a distance D from a change in angle ?, the continuous trajectory of the extrusion head complies with the following equation, for each of the layers forming the decorative object, where appropriate: D=a+(b×Vc)+(d×a) where a, b, c and d are constants.

Abstract: A method for manufacturing a decorative object from at least a first layer of a hot-extruded strand of a polymer-based composition, including a step of passing a polymer-based composition through an extrusion die from an inlet supplying the composition to an extrusion head from which the extruded strand emerges in an ambient environment, the first layer of extruded strand deposited on a reception support, and the method includes the steps of: using a polymer-based composition of recycled polyethylene terephthalate or a mixture of recycled polyethylene terephthalate and non-recycled polyethylene terephthalate, heating the composition so that the temperature of the extruded strand, at the outlet of the extrusion head is between 200° C. and 300° C., cooling the reception support to force the cooling of the first layer of extruded strand by conduction, the temperature of the cooling of the support being lower than the temperature of the ambient environment.

Abstract: A decorative object formed by at least one layer of extruded strands, having a thickness of between one and fifteen millimetres of a polymer-based composition advantageously including at least one additive, where the polymer-based composition includes recycled polyethylene terephthalate having at least 99% by mass polyethylene terephthalate and the following residual quantities: no more than 50 ppm of polyvinyl chloride, no more than 100 ppm of water, and no more than 30 ppm of polyethylene.