We have also been involving in nowadays-environmental problems therefore some projects have been selected to find a solution. Biodegradable polyethylene, polypropylene, and polystyrene could be prepared in wide range of biobased materials content. Then properties of the biodegradable blends were enhanced in this issue. Next, biodegradability of the blends was determined and finally optimal biodegradable plastic was successfully formulated to be applied in plastic industry especially in film packaging.