Patent ID: 7842222

Claim:
Preform for blow-molding a container comprising a neck section, an adjoining wall section having a substantially cylindrical shape, a neck ring between the neck section and the adjoining wall section, and a bottom section that forms a base of the preform, the preform defining a multilayer structure including a first outwardly-facing perform surface layer composed of a primary material, a second inwardly-facing perform surface layer composed of the primary material, and an intermediate core layer composed of a secondary material that is different from the first primary material, the intermediate core layer being disposed between the first and second surface layers, a center surface of the intermediate layer being directed outwardly, toward the outwardly-facing preform surface layer, with respect to a center surface of the wall section, wherein the primary material includes a synthetic PET material, the secondary material includes at least one of a recycled PET material and blends thereof with additives, and the intermediate layer includes a hydrophobic polymer and organisms selected from at least one of cells and cell products worked to aggregates in the polymer to form a polymer-bio aggregate.