Injection molding system for forming a multilayered molded article

An injection molding system for forming a multi-layered molded article from at least two plastic molding materials, which comprises:

• a first mold half and a second mold half adapted to cooperate to form at least one mold cavity for forming the molded article, said mold cavity having a peripheral edge region;
• a first injection means positioned in said first mold half in communication with said at least one cavity for injecting a first plastic molding material into said at least one cavity through a first orifice;
• a second injection means positioned in said second mold half in communication with said at least one cavity for injecting a second plastic molding into said at least one cavity while the first plastic molding material is still in the fluid state in said at least one cavity, said second plastic molding material being injected through a second orifice unconnected with said first orifice, wherein said second plastic molding material is different from said first plastic molding material;
• at least one hot runner manifold communicating with at least one of the injection means;
• wherein the first and second injection means are operative to sequentially inject first and second plastic molding materials into said cavity so that the first injected plastic is forced to the edge region of said cavity to form substantially the entire edge region of the multi-layered article, and the second injected plastic forms the interior of the multi-layered article with the first injected plastic substantially completely surrounding the second injected plastic.