1. Coextrusion;Djordjevic,1992
2. The Dow Chemical Company, US Patent 3,195,865, 1965.
3. Peter F. Cloeren, US Patent Application US 2005/0,029,691 A1, 2005.
4. The Dow Chemical Company, US Patent 3,759,647, 1973.
5. Polymer Nanostructures by Forced Assembly: Process, Structure, and Properties