Patent ID: 7776431

Claim:
A plastic planar structure having a visual design, comprising: a bearing layer which contains plastic foam, the bearing layer defining a lower surface of the plastic planar structure wherein said bearing layer comprises upper and lower surfaces with the lower surface of the bearing layer comprising a thin skin of said plastic foam which is compressed and forms the lower surface of the plastic planar structure; and an upper layer, also containing plastic foam, which adheres on the bearing layer in a material lock wherein the upper layer only covers partial areas of the bearing layer and wherein the upper layer forms a portion of an upper surface of the plastic planar structure in the partial areas and the upper surface of the bearing layer forms a portion of the upper surface of the plastic planar structure in intermediate areas remaining exposed, and wherein the plastic foam of the bearing layer and the plastic foam of the upper layer each have substantially the same average density, and wherein the plastic foam of the bearing layer and the plastic foam of the upper layer each exhibit a different colour.