Polymer/clay nanocomposites are materials that possess unique properties. These properties are enhanced properties of the polymer matrix. Some of the improved properties are thermal stability, permeability to gases, flammability,mechanical strength and photo-degradability. At complete dispersion of the clay layers in the polymer matrix, these enhanced properties are obtained. The unique properties of the material makes it suitable in applications as, food and beverage packaging, automobile parts, furniture, carrier bags, electrical gadgets and so on.